Overview of mobile applications Head-Up-Display. HUD projector on the windshield of the car Hud gl hd1 does not show fuel consumption
Hello comrades!
Minsk time - 9 hours, in Petropavlovsko-Kamchatsky - midnight.
I am starting the program at your request and today you will find out how easy and inexpensive:
- make from washing machine"Vyatka" portable shaker;
- organize a home weather station from a rectal thermometer and finger-type batteries;
- with the help of a plastic bottle, lighter and grandmother's herbarium, create a good mood for a large company ...
Maestro, cut your march!
It's about fuel economy, high-speed radars and car tuning "a la rus"! Who is too lazy to read - FIRST!
Background and purchase motives
I am a very economical person. Yes, these are exactly my exclamations "Who didn't turn off the light in the kitchen !!?" audible even in the vestibule. It is on my balcony that the washed used bags are proudly developing. You will see me on the beach in cut-off "under the shorts" and carefully placed by my mother. So who am I after that? Loch? No, this is the wrong answer. I am a beloved Husband and a Level 80 Folder. Because there is no extra money in the family! Never. Until we… until we… "bought a ticket to Turkey and a second fur coat" - thank you, dear, for the hint!
If you have not yet closed the tab of this review for the glory of the review of the next power bank, then you have fallen into my zombie trap and, at least, will read the article to the end. As a maximum - write off your apartment and car for me. We will talk about her (car) today.
I have two cars in my family. One - almost new Peugeot is in the use of his wife, and the second - Mitsubishi Lancer Wagon of the ninth generation born in 2006 possesses me. The first one was bought for transporting a whole family (me, a wife, two children) and is equipped with all the newfangled gadgets from Klima to a cruise. The second is a kind of "stepson" and was born to humiliation by moving in space formwork / blocks / cement / near-construction rubbish. It looks ugly, like a trampled sneaker, but 95% of trips take place in it. It just so happened that my Lancer IX is not provided with a complete set on-board computer... It is, of course, there, but there is no display with readings. For this reason, I am not even aware of the fuel consumption. And this is, kapets how inconvenient! And I also regularly catch high-speed radars on the track, which also cost a pretty penny ...
Due to the fact that my faithful Mitsubishi Lancer IX is not equipped with an on-board computer (for those who do not read spoilers), and there is no desire or opportunity to change the car for a more expensive one (read above), I decided to buy a HUD, aka an on-board computer projector on windshield... And now I can already hear the objection User AlekseyM () “Who just wants to“ try ”the bluetooth obd2 adapter is bought - cheap and cheerful. on a phone with an adapter, a program like hob drive, CoroO is installed and everything that interests you looks on it, if you like it, you can already install such a thing. Well, I did just that. The first step was the acquisition of a primitive OBD scanner that transmits data from the on-board computer to the phone via bluetooth. I really liked the idea, but the implementation - no. Firstly, to activate, you need to use TWO devices - a scanner and a phone. In addition to the fact that the phone must first be installed on a tripod, turn on the bluetooth and run the corresponding program (I had Torque lite), you also need to regularly look at the state of the battery. In the active mode of Torque lite, the battery in the phone is consumed to zero in 3 hours. From this, the conclusion is that this option does not suit me. Having studied musu, I came across such a review about the HEAD UP display user blackhyu() »I have been using similar ones for 2 years already. Hyundai Tucson... Very satisfied. Only placed not in the center of the torpedo and on the left. Not so striking and not annoying. And the mirror film also does not look so "strange" from the street. Plus I put a black plate on the glass in the corner - from the street you can't see at all that some kind of box. I look at the readings only for such a device. Generally 100% satisfied " after which the conclusion was made unambiguous - must be taken!
Which HUD should you choose? This question can be answered by defining the range of required functional requirements. In my case, this is:
- Bright, well-readable display;
- Large print of indications for ease of perception;
- Information about speed and fuel consumption. If possible, this should be accompanied by intelligent notifications of significant changes in the readings of the on-board computer.
Based on preferences, in the field of my interests hit 2 models:
1. Folk which is sold on BUYSKU.COM for $68
and was reviewed on the beloved MYSKU.
2. "Dark horse" due to product innovation (2014 model) HEAD UP DISPLAY ASH-4 which I FIRST found on ALIEXPRESS.COM for $49
First option immediately fell out of favor due to its small size and pale green illumination. And the price ... Second option I liked it due to the larger 5.5-inch size and the choice of the projected color: white-moon, yellow and blue. 
And so I practically raised my finger over the button "PAY", but ... I thought about looking at other cheaper sites. Went back and found a bold% 8 off $ 40 discount coupon. As a result, it turned out cheaper than on ALI (!), And even PAL is accepted. I signed up with the seller for availability. They answered immediately - yes, there is. If, they say, we see a babosik, we will send it within 48 hours. So they decided. The goods were on the way, which is a good indicator for New Year's Eve.
So what did I order?
English specification
Features:
- Standard OBDII interface, easy to install and operate.
- Adopts high brightness projection technology. Automatically sense the display brightness to ensure the clear projection on car windshield.
- Information display is simple and clear to improve road safety.
- 5.5 inch large display, easy to read. Screen flickering alarm.
- Suitable for any vehicles conformed to OBD II, which are manufactured after 2007.
HUD is short for Head Up Display. It is dangerous if driver watches the dashboard while driving on expressway, especially at nights. If there is any emergency situation ahead, it might be too late to take effective actions and then accidents might happen. To avoid this situation, we recommend you to install a HUD Head Up Display. This product can project important information (e.g. vehicle speed) onto the front windshield at the eye level of the driver. It is helpful to reduce accidents due to head-lowering while driving. It is developed based on OBDII interface. The installation is very easy.
Please read the details of user guide carefully before use.
Color: black
Material: ABS
Package size: approx. 17 x 13 x 4.5 cm
Display size: approx. 147.5 x 85 x 14 mm
OBD cable length: 1.44m
Interface: 16pin
Working voltage: 9-16V
Functions:
1. Displays the vehicle speed, engine speed, water temperature (voltage / throttle position / ignition advance angle / 100km acceleration time), instant fuel consumption, average fuel consumption, mileage, low fuel indication, rest tips, and engine failure.
2. Display modes: normal, high-speed, or automatic (optional)
3. Units can be freely switched between kilometers and miles.
4.5.5 "large screen, easy to read
5. Auto switch on / off. It starts or shuts down along with the vehicle, effectively protecting the vehicle battery. It can also be turned on / off manually.
6. Single stage or fourth stage of alarm modes can be chosen, ensuring traffic safety.
7.With revolving speed alarm reminding driver to change the gear to save fuel consumption.
8. Brightness can be adjusted manually or automatically.
1 x OBD (with connection cable)
1 x Display
1 x English user guide
1 x Reflective film
1 x Anti-slip pad
In original package
Specification in Russian (my translation)
Peculiarities
:
- Standard OBDII interface;
- Application of high technologies of brightness of design;
- Contrast and clear image on glass for easier perception and increased road safety;
- 5.5 inch screen for easy reading;
- Universal for anyone vehicle equipped with OBD II connector, manufactured after 2007.
Black color
Material: ABS
Package size: 170 x 130 x 45mm
Device size: 14.75 x 85 x 14mm
OBD cable length: 1.44m
Interface: 16pin
Working voltage: 9-16V
Functions
:
1. Shows vehicle speed, engine rpm, coolant temperature (voltage / throttle position / pre-angle / 100 km acceleration time), instant fuel consumption, average fuel consumption, mileage, fuel level, rest time prompts and engine errors;
2. Modes of monitor operation: normal, high-speed, or automatic (optional);
3. Choice of units of measurement: kilometers and miles;
4. 5.5-inch large screen;
5. Automatically turn on and off with starting or shutting down the car. There is also a manual switch function;
6 Flexible Driving Safety Warning System: The four-stage warning system will help control the safe speed level.
7 Engine speed alarm. This contributes to changing gears in time to save fuel, also matters for the new driver.
8. Three-step selection of brightness level
Set
:
1 x OBD (with communication cable)
1 x Display
1 x User Manual (English)
1 x Film on glass
1 x Anti-slip base
In original package
Received a small envelope wrapped in foamed polyethylene. The size of the box is comparable to a navigator. There is a complete set inside. The HUD is packaged in a complete "sell and give away" package.
There is nothing to say about the anti-slip rug and the film - the film and the rug. Everything is packed in bags. Instruction manual for English language... Link to it. Cable with OBDII chip (side connection) on one end and mini USB on the other. The length of the cord is 1.5 meters, which is quite enough for almost any car. The cord is flat, elastic.
Now about the projector... The dimensions and weight of the device correspond to those indicated on the website. Made of matte black plastic. The body with rounded edges is held together by six screws. In the manner of a tablet, it is checked for backlash and creaks - they are not. The front side is pasted over with a matte film with the corresponding sectors of indicators of yellow and gray... All symbols are mirrored. The speaker is located on the back of the projector. In the upper part there is a scroll button that works in three directions: right, left and pressing. The travel of the button is soft and springy, the rib is corrugated. At the bottom there is a miniUSB cable socket. In general, the device is very ascetic, so a lengthy story does not work out in any way. Pictures will be more eloquent.
As you can see, the assembly is of high quality. There are no clips or latches, everything is on screws. The printing is smooth, the fonts are quite "European".
Now is the time to move on to field testing. We shovel everything into a heap and go down to the beloved phaeton.
Installing the device on a car
1. The device is compatible with any vehicle that supports the OBDII standard. Whether your car supports this standard, you can find out or in the technical documentation for the car.
2. To find the OBDII diagnostic connector, you need to rummage in the steering column space (sometimes under the ashtray or in the armrest) in search of a 16-pin socket. This is where the HUD chip needs to be contaminated, essesna, with the engine turned off; 
3. Next, you need to place the projector of the device on the panel in the intended installation location under the windshield. If necessary, you can use a rubber mat (included);
4. In the place where the indicators are projected onto the glass, it is necessary to stick a mirror film (included), the glass must be thoroughly cleaned beforehand. The film will eliminate ghosting on the windshield. In the sacrament of gluing, all the Laws of applying a protective film to a smartphone display operate:
A. We spray water on the forehead at the place of the sticker and on the film
B. Apply a sticker to the glass
B. We expel moisture from under the film from the center to the edges with a credit card;
5. The cable, if desired, can be tucked under the trim or seal of the passenger compartment.
6. We use.
Such is the PLUG-N-PLAY! The entire installation process is described in detail in the review, thanks to Comrade. He1ix.
Control button functions.
1. Configure device settings and notifications. When the car is started, you need to press the button in the center position and hold it for 5 seconds. Functional zones A and B will light up and enter standby mode. This means that it will be possible to change the parameters in accordance with the Table in the Manual. 
To set the required parameters, you need to turn the slider to the left or right. The transition through the sectors of the parameters can be done by a short press on the slider in the central position. To exit the settings menu, press the button in the center position and hold it for 5 seconds.
2. Setting up sound notification. When the car is running, it is necessary to hold the button in the extreme left position for about 3 seconds. The speaker icon appears on the display. This means that a buzzer sound is added to the notification indication. You can remove the sound notification by repeating this procedure.
3. Setting dynamic indicators (displayed when driving)... When the car is running, you must hold the button in the extreme right position for about 3 seconds. 
You will enter the dynamic parameters menu 1, 2 and 3. Press once to select the parameters of the dynamic menu that you want to display.
Now with regard to the informative display of the device. 
The ASH-4 projector is schematically shown below, broken down into informative sectors. 
1. Interactive display is intended mainly for displaying the vehicle speed. It can be expressed in kilometers and miles. Optionally, you can customize speed mode and only the speedometer readings, fuel consumption and one of the indicators of point 16 will be displayed
2. Information board, body
3. Indicator low level fuel I have it set up in automatic mode. Lights up when there is about 10 liters of fuel in the tank. It works a little later on the device than on the scoreboard. The error is 4-6 kilometers. You can set the desired fuel level for triggering the sensor.
4. Error indicator / check /. God forbid, of course ...
5. Tachometer. Duplicates the readings of the standard tachometer. The scale is constantly on, and with an increase / decrease in engine speed, the corresponding numbers on the scale light up (more clearly in the video)
6. Decoding of the tachometer readings. Traditionally, the figure is multiplied by 1000, measured in rpm
7. Indicator of excess of the set speed. The function is activated depending on your presets. Can be configured to trigger when crossing 4 speed thresholds at the same time: 60,80,100,120 km. Optionally, you can set a single operation when crossing a certain speed threshold. I have 102 km / h. our radars, they say, are configured for photographic recording at +12 km from the established speed limit. It seems while it was carrying ...
8. Indicator of exceeding travel time. It will light up if more than 4 hours have passed since the start. As a person who wakes up in an oncoming lane, I do not advise joking with this!
9. Indicator of sound notification of significant changes in the readings of the on-board computer. It works as a buzzer together with indicators 3,4,7,8,9.
10. Fuel consumption indicator. Needed, probably for beauty. Means that the readings to the left of it refer to fuel consumption ...
11. Fuel consumption readings. Quantification of fuel consumption. Calculated in liters.
12. Device control button Navigation button, described in detail above.
13. Fuel consumption indicator: XX liters in 1 hour. Judging by the level of the numbers, it is quite suitable for the description "Average fuel consumption sensor"
14. Light sensor. Works when the automatic backlight brightness function is activated.
15. Fuel consumption indicator: XX liters per 100 km
16. Indicators:
- Voltage of the on-board network. In my case, the voltage range is from 13.2V to 14.5V, depending on the mode of operation of the car. Recently, candles were flooded and the car did not start the first time. I clearly saw how the voltage after each attempt to start fell before our eyes from 14 to 11 V.
- Position throttle.
In other words, the intensity of our pressing the gas accelerator and how the throttle control unit understands it. A utilitarian, but not a minor function, it is the uniform idling of the engine. Experts say that this unit is at risk for my engine, so it is a very useful indicator.
- Coolant temperature. A very useful and VISIBLE indicator. When starting the engine, it now shows 0 degrees. As it warms up, the indicator grows and only at 40-45 degrees does the standard arrow on the panel wake up. I get under way at 50-60 degrees.
- Ignition timing. This figure should not exceed 10 degrees. Otherwise inevitable increased consumption fuel.
- Acceleration. This function is used to calculate the acceleration index. In other words, the intensity of movement of the car in space for a certain period of time. Bliiiin, my wife is right, I ALWAYS COMPLICATE EVERYTHING! Oh, everything, let's go further ...
17. Indicator of seconds. Needed when you measure the acceleration of a car i.e. time in seconds and hundredths for which you will reach 100 km / h. This is for the riders ...
18. Indications Indicator readings 16
19. Kilometer indicator Lights up if there is only 100 km of fuel left. I did not understand nafig it is needed if there is item 3.
20. RPM indicator (Revolutions Per Minute) Revolutions per minute. I figured this is a detailed tachometer.
21 and 22. Indicator displaying kilometers per hour and miles per hour... You can choose in which units the speed of movement will be expressed.
This completes the setting of the parameters, it's time to test the device on the go.
And now pokatushki !!!
We start the car. After 5-7 seconds, the board is activated and shows the on-board voltage. The coolant temperature sensor immediately wakes up. During the period when the vehicle speed is "0", the fuel consumption indicator switches from the XX liters indicator to 100 km, to the XX liters per hour indicator. This is logical because if the first function is active, then the "sky-high" consumption will be displayed - 99 liters. As soon as the car starts moving, the XX liters per hour consumption indicator automatically switches to the XX liters per 100 km consumption indicator (clearly in the video). If, while driving, the parameters of the standard scoreboard differ slightly from the HUD data, you need to make fine adjustments in accordance with the Table in the Instructions. How is the reading of the fuel consumption parameters in the car? On one reputable forum, I found an answer that satisfied me: multiply the pulse duration of the injectors by the pressure in the line and multiply by the performance of the injectors. There is, of course, in this formula weak spots, such as contamination of injectors, fuel quality, condition and size of tires ... All this is not taken into account by the on-board computer. However, for me, it is not so much the exact amount of fuel used in liters that is important, but the increase-decrease in consumption depending on the driving style. If you are not satisfied with the calculation formula given by me, welcome under the spoiler. I warn you, data can cause tics and a deepest inferiority complex.
RADY? STADY! GOW !!!
Q = 100Gt / (Vaρt),
where Gt is the hourly fuel consumption, kg / h; Va-vehicle speed, km / h; ρt-fuel density, g / cm3.
To calculate the hourly fuel consumption, it is necessary to multiply the specific fuel consumption by the power:
Gт = geNe = 0,03VhnPe / (Hнηe),
where ge is the specific fuel consumption, kg / (kWh); Ne - effective engine power, kW; Pe is the average effective pressure, kPa; Нн - the lowest heat of combustion of fuel, kJ / kg; ηе - effective efficiency; Vh is the working volume of the engine cylinders, l; n - rotation frequency crankshaft, min-1.
The crankshaft rotation frequency is determined by the formula through the vehicle speed: n = 2.65 * io * iк * Va / rк, where iо, iк are the gear ratios of the main gear and the gearbox, rк is the rolling radius, m.
The effective efficiency of a motor can be expressed in terms of the mechanical and indicator efficiency as follows:
ηе = ηmηi = Peηi / (Pe + Pп),
where Рп is the average pressure of mechanical losses in the engine, kPa.
The average effective pressure Pe is determined from the equation of the power supplied to the wheels of the car. The power on the driving wheels is equal to the sum of three terms: (Gaψ + 0.077kFV2a ± 0.1βGaVa) Va / 3.6 * 103. The third term is an additional force Pj to overcome inertial forces. This force consists of the force Pp required to accelerate the translationally moving masses and the force required to accelerate the rotating parts. For simplified calculations, it can be assumed that the force Pj, is Disproportionate to the force Pp and the coefficient β, which takes into account the influence of rotating masses (flywheel, wheels, etc.):
Pj = βРр≈ 0.1βGaVa,
where Va is the acceleration (deceleration) of a moving vehicle, m / s2.
The β coefficient is approximately calculated by the formula β = l + aKi2к, where ak is a constant for this car quantity (for passenger cars 0.03 ... 0.05, for trucks and buses 0.05 ... 0.07); iк is the gear ratio in the gearbox. Thus,
Neηtr = VhPenηtr / 120 = (Gaψ + 0.077kFV2a ± 0.1βGaVa) Va / 3.6 * 103.
Hence, kPa, Fe = 12.56rk (Gaψ + 0.077kFV2a ± 0.1βGaVa) / (Vhi0ikηtr).
To determine the average pressure of mechanical frictional losses in the engine, there are a number of empirical formulas, which in general are written as Pp = a + bCp, where a and b are constants for this engine coefficients; Cn is the average piston speed, m / s. These losses practically do not depend on engine power. Expressing the speed of the piston through its stroke (Sп, m) and the frequency of rotation of the crankshaft (n, min-1), we obtain, kPa,
Pp = a + 0.033b * Sn * n.
Approximately 65% of energy losses due to friction fall on the cylinder-piston group, 15 - 20% - on the gas exchange processes and 10% - on the drive of auxiliary devices. By reducing mechanical losses for friction, gas exchange and the drive of auxiliary devices, fuel consumption can be reduced by 3 - 5%.
Coefficients a and b are experimentally found for each type of engine at different ratios of the piston stroke Sп to the cylinder diameter Dц. For carburetor engines at Sп / Dц1, the values of the coefficients a and b are slightly higher than at Sп / Dц
For diesel engines coefficients a and b are slightly higher than for carburetor ones. With sufficient approximation for practical calculations, it is possible to take a for diesel engines 48 kPa and carburetor 45 kPa, b - 16 and 13 kPa * s * m-1, respectively.
Sometimes the figures for the instantaneous consumption are frankly frightening and the foot involuntarily weakens the pressure on the gas pedal (especially at the start from a traffic light). For this reason, I noticed some changes in my riding style. I cannot confirm the objectivity of the fixed flow rate. there is nothing to compare. At the end of the route, after turning off the engine, the display shows the average consumption for the trip. This seems to be true. For me, it was 9-9.3 in the city, outside - about 7.5 liters.
In motion, the parameters are read perfectly both at night and during the day. After one or two days of use, I completely stopped looking at the standard speedometer. This is logical: it is much easier to look away a couple of centimeters horizontally than to look for numbers in the loophole through wheel... Moreover, the standard Lancer panel, according to the general opinion of the owners, is rather dull. I set the brightness of the device to AUTO mode, which works properly. For perfectionists, I will report - from the outside, the numbers on the forehead are not visible, no one will point a finger. The only thing visible from the outside is a mirror film on the glass. In the evening, a bright spot is visible at the HUD installation site. 
Well, it's time to wrap up and move on to dessert.
As a result of this purchase, I:
- received objective VISUAL information about the readings of the on-board computer - speed, fuel consumption, coolant temperature, voltage of the on-board network, etc.
- warned the family budget against unnecessary fuel costs and traffic police fines
- reinsured for the occurrence of engine errors
- upgraded my tarantass. This circumstance can cause the indignation of fighters with blue dimensions and pseudo-forward flow, but ... firstly, over the years of contemplating the same type of console, you get pretty tired of it. Secondly, each new passenger looks at this function with undisguised interest, which is really nice. Even neighbors in traffic jams are interested in the bells and whistles. Well, that's more for extroverts. 
I traditionally add my own video
A few more video reviews of the ASH-4, which may shed light on aspects of the device that I have not touched upon.
Instead of an epilogue:
I wanted to do not so much laudatory as detailed review unusual device. I hope the main goal has been achieved and you will get the source code for making a purchase decision. If the text turned out to be useless to you, then to you. For me personally, the subject causes exceptional erotic hyperesthesia and an irrepressible desire is behind the wheel. In short, my Savrazka and I have our second honeymoon.
Good to all, and good-natured traffic policemen and good roads to the drivers!
Good day. I already wrote that not so long ago I became the owner of my childhood dream - the legendary rally car Lancia Delta Inegralr HF. I also wrote that not everything suits me on the part of its electronic "filling". Whatever one may say, but since the moment my Delta rolled off the assembly line, almost thirty years have passed.
In my last post (), I talked about the "Start-Stop" ignition button that I ordered on Aliexpress. As I said earlier, I will install it on the weekend, but now is the time for a new review.
What is a HUD display?
Today we will talk about the HUD-display. HUD-display (Head Up Display) - literally can be translated as: - "display of the raised head". The people here call this device - a projector on glass. It projects different indicators (speed, engine speed, on-board voltage, fuel consumption, etc.) of the car onto the windshield.
Where did he come from?
Initially, the HUD display was not designed for cars at all, but for fighter aircraft of the US Air Force. It was done with one goal - to minimize the time (and this is a fraction of a second) that the pilot takes while he looks at the instruments.
How I caught fire with the HUD display
It all started two years ago when my sister's husband bought himself a Buick Randevouz. The Buick Rendezvous is huge seven-seater jeep, not a SUV =). So, he bought it in another city and asked me to go after the car with him. We got there in his Mazda CX-9, and back I had the pleasure of driving a Buick Rendezvous. Since the re-registration took us almost a whole day, we drove back at night. As soon as dusk appeared, I turned on parking lights and voila, on my windshield, the speedometer readings began to duplicate. Six hundred kilometers behind the wheel of the present American SUV passed like an instant. But, most of all, I could not forget that pale green speedometer that was projected on my windshield.
Buying a device called HUD
My friend went the easy way: he downloaded the SpeedFox application for his mobile phone on Anroid and then put the phone under the windshield. This option did not suit me, and since I am not looking for easy ways, Two years ago, I started searching for this miracle on the Internet. I started searching ... I searched everywhere: in online stores, at auctions, on sites with private ads. And I found it here on Aliexpress http://ru.aliexpress.com/item/2015-W02-HUD-5/32353508228.html?s=p. What I liked right away was the rich filling (as stated in the description), compatibility with the OBD II interface and free shipping. The price did not suit me a little, after all, almost fifty bucks - a little expensive ... But still I ordered it.
The seller sent the goods quickly and sent me a track number RC858046802CN to track my HUD.
The product went on for a little over a month. Frankly, I was afraid that he would not come at all ... Because at that moment, just two parcels did not reach me. But nothing happened.
HUD-display
The HUD display came to me well packed. The seller from the Middle Kingdom did not regret the pimply film. Let me remind you that purchases on Aliexpress are insured and if the goods arrive damaged, then the buyer has the right to open a dispute (Open dispute) and not pay for the goods. Therefore, lately, the Chinese have been very attentive to packaging. And since my HUD-display is not a cheap thing, by the standards of Aliexpress, proper attention was paid to the packaging. 
Having opened a gray bag with the inscription ChinaPost and unrolled a kilometer of pimpled film, I found just such a box. 
Opening the top lid of the cardboard package, the following picture appeared in front of me. 
Five items were neatly folded in the box: an instruction manual, a sticky mat, a mini-USB / OBD2 cable, a mirror film on the glass and the HUD display itself. 
The HUD display was wrapped in one more kilometer of pimpled film =) 
This is how the instruction looks like 
And this is already a rug 
Sticky on both sides 
And this is how the OBDII connection cable looks like 
The cable is very long, about a meter long 
Reflective film on glass 
Well, the HUD-display itself 
OBD2 cable socket 
Mode switch 
In general, I liked the Chinese electronics product. Had is assembled very efficiently. The plastic is flush-mounted everywhere. Nothing creaks anywhere.
OBD2 cord is very high quality made. It is made of durable material and resembles wires with a good cross-section in terms of rigidity. 
The mat is just mega-sticky, the finger comes off with difficulty =) 
Connection time
On Moya Lanche, OBD2 interface is supported through a special adapter. But, alas ... the HUD-display did not work. Even after a couple of hours of dancing with a tambourine around this device, they did not bring any results. It's a shame and annoying ... But I don't give up =)
The first thought was that the device itself might not work. Then I decided to try it out on my wife's car. She has a Ford Ka.
After connecting to her car, I exclaimed to myself: Eureka !!! It works !!!
The device actually turned on. Some settings have appeared. With the help of the instructions, I entered the parameters of the car and started it.
The device works, but does not show anything. After about thirty minutes of dead time, HUD began to show the voltage of the car network.
P.S. I am still dealing with this device. Tried connecting it to: Suzuki grand Vitara 2008, Buick Rendevouz 2003, Ford Ka 2007, Mazda CX-9 2007 - but the result is two and not very positive, either does not work at all, or shows the mains voltage.
Let's figure it out further ...
Projection of gauge readings and navigation onto the windshield is not new for a long time, but this option is still only available for premium cars. For less affluent car owners, there is Alternative option- HUD applications. We decided to download and check what it is: toy programs or real helpers.
For the study, we selected free Android applications (there are analogues on iOS as well), from among the most rated and demanded on Google Play. Thus, the five most popular applications "HUD-navigation" and another top-five "HUD-speedometers" were installed. Go.
Navier HUD
The application is able to position itself with a weak signal from satellites, picking up on cell towers and A-GPS. You can start navigation, or select a speedometer. The map is not displayed on the screen - only a piece of the route line and direction indicators with text tips. Navigation and settings menu are completely Russified. It is possible to choose the color of the speedometer, compass and route indicators. There is a point for setting the screen orientation, but only horizontal works.
The address input is strangely implemented: the program in the form of "hints" takes names from the phone's phonebook and known POIs. Street names do not appear at all, the address must be entered completely manually. Voice search does not work, when you click on the "microphone" there is no reaction. However, the program defines its city (we have St. Petersburg), and you can start right from the name of the street. The fonts in the program are very small, they are hard to see even on a tablet.
Corner HUD
It positions itself very quickly, even faster than Yandex.Navigator. But when entering an address, street names are not prompted, "extra" letters are not darkened. Names from "contacts" or POIs appear. When trying to use voice search, the application crashes with an error. The fonts in the address bar are thin, but large enough and readable. The map is displayed on the screen, it is also available in the HUD mode.
The map is Russified, but the application menu is in English only. The map is schematic, only the main streets are signed (which is absolutely correct for the image that hangs in front of your eyes all the time). But the settings for choosing a color scheme are only in the paid version. The function of a step-by-step text description of the route is also available to everyone. The application can automatically change the orientation of the display, but when you rotate the device, it freezes for three seconds with a dark screen. The app has a lot of embedded ads.
HUDWAY
The closest imitation of real projectors on glass. In HUD navigation mode, an image of the bend in the road is displayed on the screen, an arrow indicates the direction and distance to the bend, and speed data is displayed next to it. Here you can adjust the screen brightness and picture advance (20 m by default). Color settings and hints - only in the paid version.
The program is completely Russified, you can choose maps for work - Google, OpenStreetMap or Yandex. When creating a route, maps are available in their usual form, and in travel mode, the program automatically switches to display for projection on glass. In navigation, horizontal and vertical orientation of the screen is possible (switched manually), when working with the menu and entering an address - only vertically. There is no voice search. The fonts are very small everywhere, there are a lot of ads in the application. In the menu, the program sometimes slows down, but not critical, without long freezes.
Z-NAV and Head-Up Navi
Applications, it is not clear how they got into the thematic section of the most popular and free HUD-navigators. Z-NAV turned out to be a very crooked and braking non-Russified program. But most importantly, it was unable to work in HUD mode - for this, the application required a Bluetooth connection to an additional projector device.
Head-Up Navi can go into mirror mode, but the developers here are very hungry for money. In the free version, only the simplest speedometer is available, everything else (besides, it is not known what) is offered to be bought.
HUD Speed
Attractive speedometer with statistics and large numbers, color settings. But the application sees satellites very badly - it was able to find it in more than 10 minutes! It is very easy to lose touch with them, again looking for a long time. In a stationary position, the speed figure runs all the time within the range of 0 to 10 km h, jumps while driving. The orientation is only horizontal. A lot of advertising.
Speedometer
A simple speedometer, there are color settings, units of measurement. You can see the statistics of the maximum speed and distance of the trip. Display orientation is horizontal only. The app contains ads.
AASpeedometer
Several speed scale options to choose from - digital and analog. It is possible to customize the color, sound warnings about exceeding the set speed. The map is loaded in the application, it is very slow. You cannot build a route here, only view the location. The application has no Russification. There are a lot of advertisements. Some functions (for example, dynamic speed graph) are only in the paid version.
DigiHUD
Digital speedometer without ads. Can be customized maximum speed, enable sound warnings when it is exceeded, set the display color, view statistics. The application menu is Russified, but abbreviations on the display are displayed in Latin.
MyHUD
Aesthetic and beautifully designed application. Large digital scale, many settings. You can set the maximum speed, color change alert, color of individual elements. You can see the weather forecast. No ads. It catches satellites very badly, constantly loses the signal.
What's the bottom line?
It is impossible to deceive the laws of physics: ordinary glasses are unsuitable for projection and during the day nothing is reflected in them, even at maximum screen brightness. In dense twilight and at night, the picture appears, but even here it was still not possible to download premium options for free. Some applications work at the very least, others do very poorly, but all of them are no more than a toy for a couple of days: downloaded, tinkered and deleted.
HUD projector on the windshield is designed to prevent accidents, projects important information on the windshield at eye level such as: speed, fuel consumption, voltage, date, time, engine speed, battery discharge signal, mileage, travel time, fuel consumption per 100 km and other parameters.
Display location and brightness can be adjusted
Prevents the driver from looking at dashboard and helps to avoid violation of rules and regulations due to speeding.
Reduces the risk of road accidents caused by distracted mind due to looking down.
Connects via the car OBD2 connector
HUD display
Easy installation, connect to OBDII diagnostic connector
Indication:
- Engine speed
- Fault alarm icons
- Speedometer
- Engine temperature
- Voltage
- Mileage
- Fuel consumption
- Remaining fuel
Equipment:
1. Device
2. Mirror film
3. Mat for fixing the device to the dashboard
4. OBDII - cable
INSTALLATION INSTRUCTIONS
Preparatory work
1. Find out your type and brand of vehicle. When choosing a vehicle type that must comply with the OBD2 standard, you need to open the hood and find a sticker under it. If the sticker bears the words OBD2 Certified Tool, it means you can install the HUD (Fig. 1).
2. Connect the HUD to the vehicle. The 16-channel diagnostic socket can be found under the steering wheel of the car, above the accelerator pedal. Then connect it to the OBD2 connector (Fig. 2).
3. Lay the non-slip mat in a horizontal position at the front of the vehicle and adjust the angle of the HUD on it.
4. Stick the reflective tape on the windshield of the car above the HUD in order to obtain a high-quality image of the data. You can ask the authorized dealer to stick the reflective tape.
Some tips for sticking film:
A. You can spray water evenly on the windshield with a spray.
B. Please tear off the protective layer of the film and spray some water on both sides of the film. Then install it wherever you want.
C. Squeeze water from under the film on the smooth surface of the object until it is completely removed and the bubbles inside disappear.
E. When the water is squeezed out, you can wipe off the water and dust around the screen.
5. To check the power supply, you need to plug the HUD into the connector and you will see the previous voltage reading. Then enter the state of research of the computer version of the vehicle. After that, we can say that the HUD has been installed successfully.
HUD settings
The HUD display values are the same as those of the vehicle's on-board computer. However, they may differ from the trip computer. You need to put the HUD into customization mode and make some minor adjustments. As a result, mapping to HUD display will match the data of the vehicle indicators. The specific steps are as follows.
Connect HUD to vehicle and start engine. To enter the correction mode, press the control wheel vertically and hold it for 5 seconds. Subsequent pressing of the wheel once adds one. You can set the plus or minus of these parameters by turning the wheel to the left or right. In this case, you should pay attention to how the device is located in relation to you and where at the moment is "left" and where is "right". Without taking this into account, mistakes can be made. Also, be aware that in setup mode, the HUD display does not show the numbers in a mirror image, but in a direct one. This makes working with him in this mode much more convenient.
You can return the display screen to Run mode by pressing the wheel vertically and holding it for 5 seconds, or restarting the HUD. (Fig. 3).
Entering adjustment mode
Explanation of the 14th point - fuel consumption.
Setting the data of the conditional (reference) average fuel consumption is determined by the manufacturer for a new car. So, if the factory fuel consumption is 8.7 l / 100 km, then 87 should be set on the HUD.
Clarification of the 15th point. ECU is a protocol of the vehicle's on-board computer. This function is to match (compatibility) the vehicle protocol with the HUD software to prevent errors or deviations. As a rule, the value of this item is set by the computer itself.
Setting the settings:
1.Fast refueling: start the car and set the amount of fuel for refueling by turning the dial of numbers; unit of measure in liters.
2. Explanations of the 11th point. Generally speaking, a car built after 2010 comes with an air flow meter. User can select = 0 to see if fuel consumption is displayed. If no fuel consumption is detected, then set the factory emission parameter.
After setting, press the tuning wheel vertically for 5 seconds to return the display from setting mode to operating mode, or restart the HUD.
Restore factory default settings.
When the HUD is connected to the vehicle, do not start the engine, wait until the HUD turns off. With the engine off and HUD off, turn the wheel to the right and hold it out for 5 seconds. Then you will hear a "tick" sound from the HUD, which means that the factory settings have been restored.
Clearing flaw codes.
When the HUD is connected to the car, do not start the car, insert the key to the "ON" position, and wait for the HUD to go out, turn the wheel to the left and hold it for 5 seconds. You will hear a beep from the HUD, which means that the erasing of fault codes is complete.
General operating settings.
1.Switching the functional zones of the display.
When the car is started and the display interface is working, you can turn the wheel to the left for 5 seconds and you will see the "function zone 1" blinking. Then you can turn the wheel left or right to choose what you want to display. By pressing the wheel vertically, you can enter the section "functional zone 2". By repeating the same steps in the same way, you can enter the 3 "function area. Finally, you can exit these settings by pressing the wheel vertically for 5 seconds.
2. Horn switch
When the car is started and the interface is displayed normally, you can turn the wheel to the left (with the mirror HUD installed - to the right) for 5 seconds, and you will see that the voice signal icon is off. Repeat these steps until the icon is highlighted. Continue these steps until you get the desired state.
3. Setting the value of the signal for the early refueling.
When the car is started and the display interface is working, you can turn the wheel left or right to decrease or increase the number that appears in the speed window. Instead of the speed readings for this time, this window will display the figure for the amount of fuel in liters. For example, turn the wheel until 20 is set. This increases the fuel supply to 20 liters for triggering the alarm. (Note: this function is only valid when the fuel switch in step 13 is set to 0.)
Functional meanings of the instruction
1. Parameter value: shows the value in units of kilometers, miles and engine speed.
2. OBD2 port: connect HUD to car.
3. Fuel icon: flashes when there is not enough fuel to drive 100km.
4. Engine Malfunction: Flashes when the car engine has problems.
5. Engine RPM: Shows the RPM of the engine.
6. Engine RPM Icon: Will flash when the engine RPM reaches the set limit.
7. Speed signal: flashes when the speed exceeds the set value.
8. Rest advice: lights up when driving has been continuous for more than 4 hours, starting with the HUD turned on.
9. Sound switch: Lit when an audible alarm is connected.
10. Fuel consumption icon: Shows fuel consumption.
11.Fuel volume value: shows the fuel consumption for the last trip.
12. Numeric dial: multi-function switch. It can be rotated left or right, pressed vertically. With it, you can enter the setting mode by long pressing it vertically.
13. Fuel consumption per hour: shows the instant fuel consumption liters per hour while stationary.
14. Light sensor: senses the intensity of an external light source and adjusts the brightness of the HUD. Automatically adapts to the environment.
15. Fuel consumption per 100 km: shows the instant fuel consumption of liters per 100 km while driving.
16. Throttle position, temperature, UOZ and acceleration to 100 km: voltage - shows the voltage value of the car; throttle valve - shows its position; temperature - shows the temperature of the coolant; UOZ - shows the ignition timing, which is an indicator of the efficiency of the engine; car acceleration up to 100 km / h - shows the car acceleration time up to 100 km / h.
17. Seconds: Displays the unit of acceleration up to 100 km / h.
18. Parameter value: shows the values of voltage, throttle position, water temperature, UOZ and acceleration to 100 km / h.
19. Mileage: the icon is on when there is only 100km of fuel left.
20. RPM: Displays the number of engine revolutions if the parameter is multiplied by 10.
21. Kilometers per hour: Displays the unit of speed.
22. Miles per hour: Displays the unit of speed.
Common problems
Problems; possible reasons; solutions
Overspeed alarm does not work... the setpoint for the speed limit is too high (see points 4 and 5 of the corrections) or the alarm function is closed (see page 4, point 2).
Engine overspeed alarm does not work... setpoint too high or alarm function disabled. Reset the limit value (see point 3 of the adjustments) or turn on the alarm switch (page 4, point 2).
No image on HUD display after engine start... ignition key did not open switch open or poor connection of HUD connectors.
Inaccurate display of fuel consumption... there is no air flow sensor in the car (they have been mainly installed since 2010). Instead of the indicator = 0, set the emission indicators (see paragraph 11 of the adjustments) in accordance with technical characteristics Your car. If they are not there, then you can set the indicator recommended by this instruction = 16.
Engine speed and RPM are not displayed on the display... car's on-board computer or EU port is not OBD2 compliant. Contact the car manufacturer.
Does not show mileage on display. incorrect settings fuel level and fuel consumption is not calibrated. Set the fuel level data source (see paragraph 9 of adjustments) to the position of manual input = 0 and adjust the fuel consumption idle move(see paragraph 2 of the adjustments).
The speed is displayed inaccurately... select the correct speed units - miles / hour or km / hour, they have different numerical values (see page 4, point 1). Calibrate the speed data (see point 0 adjustments).
Only speed and fuel consumption are shown on the display... the speed indicator exceeds the set limit (see point 5 adjustments) or switch the display settings included in the set (see point 6 adjustments) to mode = 1.
