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This is the Hobbyking G-OSD II Mini OSD System specially designed for use with small electric powered models. Its light weight and compact design makes it ideal for use on micro planes or any other model where saving weight is crucial.
*The Hobbyking G-OSD II utilizes an improved Korean 4th generation GPS module with a higher refresh rate than the original G-OSD.
Features: - GPS Coordinate Display - Time Display - Airspeed Display - Voltmeter - Stopwatch - RSSI Receiver Signal Strength Detection - Programmable Display Content - Supports NTSC and PAL TV Signal - Supports Anti-Glare Shade Control Signal - Supports Manual Calibration
Specs. Weight: Main Board - 4.6g / GPS Module - 22g Dimensions: Main Board - 34x4x20mm / GPS Module - 35x5x35mm Working Voltage: Main Board - 7.4~12V / GPS Module - 5V
Quick question to experts: I just purchased G-OSD II. My question is does it matter where I position/mount the GPS unit? I will be installing this on my Quad copter. I am thinking to install GPS unit between top & bottom frame plates. By doing so it will not have clear view to satellite, since it will be mounted between frame plates. Does it matter where I mount GPS unit?
Thanks in advance.
Yes it matters. Also if you have it too close to a video transmitter it won't get a lock. It really needs that clear view of the sky. You may still get good sat locks though. I would test its position a few times, them move it and try again.
XRAYAIR, thanks for advice/replay. Unfortunately, just got and email form HK that this product is discontinued.
Any recommendations, what i should choose now?
Baterry 1 is the MAIN battery and is what powers the OSD unit. Battery 2 is for an AUX battery, which could be your FPV battery if you run a separate one, or your receiver battery if you have one.
I don't know what Mini OSD you are referring to, but this G-OSD is probably the cheapest you can find ANYWHERE, taking into account all the features that come with it, the others you can unluck if you flash it with CL-OSD.
It seems they are EXACTLY the same product, but the Mini OSD comes with a Gen 2 GPS, just as the v1 of this G-OSD. This G-ODS II comes with a "Gen 4 GPS" which offers better positioning. I would go with the Mini OSD for the price, and try to find a better GPS online
I want to put the G-OSDII on my new quad. I already flashed it with cl-OSD.
But the thing i'm wondering about is. If I use a 12v ubec for the power supply(V1) for the OSD, can I put my 4s lipo on the V2 port so it measures the voltage of my flight battery? Or will that damage the unit? Or can it not handle 4s for measuring also?
What I did was to connect 3 cells from my 4s Lipo to trick the unit to think that I'm running 3S instead of 4s. The low voltage will work as it should if you are using quality Lipos that have been balanced and after discharge remain balanced as well. /- 0.1v out of balance should be safe for your Lipos provided you don't discharge the cells to less than 3.7v. Just keep in mind that under load the Lipos will drop in voltage comapred to voltages measured after your flight.
A voltage regulator can work, can find it here. or if got channel from your rx, just connect a servo plug and you are good to go as esc outputs 5v! This will work for the GPS module but main module still requires 2s or 3s voltage. Beat recommendation and least troublesome is to buy a 500mah 2s batt and use that to power the OSD main module with GPS tap 5v from the esc.
Do a search on ebay (about $4) for stepdown buck converter handles between 3-70 volts and will output the desired voltage you set it for (mulimeter required)
hola mena, he tratado de darle energia al gps, no funciona, tengo otro gps este ,MultiWii PRO Flight Controller w/MTK GPS Module el que viene con el multiwii podria usar este GPS como lo conecto, el plug de ambos es el mismo, pero no se si los cables de colores van en la misma forma y me da miedo quemar el nuevo GPS
Me gustaria poder ayudarte, pero soy meramente un usuario :P. Si tengo que comentar que todos estos sistemas utilizan componentes comunes y corrientes y es posible que sean intercambiables. Creo que tu mejor opcion es en algun foro como RCGroups.
mena, el gps trae dos cables, uno rojo y negro y otro blanco y negro, he tratado de instalar el rojo y negro al reciber para obtener los 5v, pero no da poder, estoy pensado cortar este cable y unirlo con el cable que biene extra , pero este cable va a signal y groud, es esta la manera que debe ir para que el gps obtenga energí*a
NO he lograo que el GPS se encienda ,el gps tiene led que confirme que tiene energí*a?
o sera que el gps esta dañ*ado o la pequeñ*a bateria que trae ahi que cambiarla
El led del GPS se enciende (y creo que parpadea mientras no tenga un GPS fijo) desde que le conectas la corriente. Chequea bien la polaridad de los cables, en el lado del Rx el V es el del centro y la tierra el cable mas oscuro. El cable que vino con el conector tipo servo no se para que era o donde esta porque nunca lo necesite :/.
Hi everybody,
I changed the ATmega88pa on board (it was dead! I shorted 2 pins)
When I program it, I can change fuses values without problem...
BUT, the G-OSD is not starting as expected! I have no video output, and the LED stay's off!
It's the command line I used to change fuses:
"avrdude -p m88 -u -c usbasp -U lfuse:w:0xf7:m -U hfuse:w:0xdc:m -U efuse:w:0x07:m" (without errors!)
(Note: I tried FF for the efuse value as supposed but it's not working, value 07 is working fine)
I also re-flashed the board with My stable CL-OSD (it was running fine before I shorted the pins). Flashing process is normal, the programming is done correctly.
Please note that all other parts seems to be good, I tested them one by one...
Do I miss something???
avrdude -p m88pa -c usbasp -U lfuse:w:0xF7:m -U hfuse:w:0xDC:m -U efuse:w:0xFF:m Is what I used one time I accidentally changed the fuses while flashing CL-OSD and It did the trick for me :/. With wrong fuses, you should at least be getting some white lines or black bars from the output, if you get NOTHING, then it's either dead for good, polarity isn't wright or the chip wasn't soldered correctly, re-check the pinout. Good luck!
mena, muchas gracias por respoder, apenas voy a instalar , lo primero la polaridad , sin dos pines a que lado del osd va el + del lado donde esta la calcomania con la informacion video, gps , vol 1 , vol 2 o del lado contrario, donde puedo encontrar el diagrama de conexion basico para este OSD muchas gracias
ya instale el osd lo puedo ver en la camara, pero conecto el gps tal como dicen, el cable rojo y negro al reciver y el blanco y negro a OSD donde dice gps, y no muestra nada del gps, sera que el gps esta dañ*ado o la pilita que trae esta descargada
I need someone help!!!
I changed the Atmega88PA on my G-OSD II because it was dead...
I bought another Atmega88PA chip, soldered it, BUT I need the "fuses" values to re-program the new one.
Please, someone, type these command lines to read your fuses values: (without quotes)
"avrdude -p m88 -u -c usbasp -U lfuse:r:-:b -U hfuse:r:-:b -U efuse:r:-:b -U lock:r:-:b"
Don't worry, you will just "read" the values, no risks...
PLEASE email me the results (copy-paste or "printscreen") at kris_rondeau*hotmail****
Thanks much!!!
Is it the right command line to program it?
"avrdude -p m88 -u -c usbasp -U lfuse:w:0xf7:m -U hfuse:w:0xdc:m -U efuse:w:0xff:m"
Please someone confirm...
I try to get it at least 4 inches away. You may want to look at flashing it to CL-OSD if you are having issues with speed numbers. It requires the USB/AVR programmer. Google it :-)
Actually....the "Manual Calibration" part isn't for the GPS, is for the voltage values the OSD displays :/. Those are the screws on the unit which you turn to calibrate the voltage.
I recommend you flash your unit with CL-OSD (Google it), it adds the "Arrow to Home" and "Distance from Home". It's a great improvement that makes this OSD a great bargain.
Thx for the ansver but i think there shold be a calibration method for the compass.. Becouse my speed is like 0-120-45-250-30-60.. so its silly to have this unit on my quad.. its pointless to see strange speeds and attitudes as natural
You can calibrate most of your settings, and change the GPS values to something you can use, by flashing to CL-OSD. Google it. It requires the USB/AVR programmer to accomplish.
Is this all I will need to get on screen displays of altitude and speed to a Fatshark FPV? Also, do you plug it into any channel on the receiver? Thanks.
Good day. I made the connections, one light was lit on GPS and another stood blinking in the OSD. In my monitor appeared functions but nothing changes except the time. The latitude and longitude appears 000000000 and height does not change. How do I fix this?
The number beside the radio tower or antenna symbol is the number of GPS satellites fixed, It must reach a certain number to have a proper GPS position, and it won't display correctly until so. The GPS has to be free of obstructions, like a roof or metal. Alternatively, you may have plugged in the GPS wrong into the main board.
See pic 'OSD fatshark setup' If that doesn't work try googling cl-osd look on the RCgroups discusion page will be in that fourm at post #2038 ( www _ rcgroups _ com/forums/showpost _ php?p=23769886&postcount=2038) replace the _ with dots
I will give zillion points to anyone who can show a picture of how to setup a complete system.
The included wire diagram only shows a single video line ? Where is the IN and OUT ?
Are we suppose to connect a wire from the OSD - VID line and have another wire from the CAMERA to join that and have this line go all the way to the TX ?
Just tried to upload photos to the files section. Its still hard to see where the wires go but see how you go. files were called 'OSD setup' and 'OSD firmware update mod'. Yes a single video line is correct, just connect that into the camera to transmitter video wire (generraly yellow wire). Eg i cut the video to Tx video wire and stripped both ends, added another wire (which goes to the video of the OSD) then soldered the 3 wires. FYI i removed a servo wire from another lead and used the connection on the end to connect to the OSD (also put heatshink over the metal part) so it could be removed.
The video wire simply "T's" into the video wire going from the camera to the video transmitter(Usually Yellow). The video ground wire gets "T'd" into either the video ground, or the audio ground. Doesn't matter because audio/video ground are linked on camera systems.
Being unknownledgable i guessed vid in/out wires were involved didnt realise the piggy back approach that various ppl have replied with. Thankx again to everyone who has helped. Shame they dont include the great pic link that len gave above on this page. Im sure it would help dingbats like me get started.
I think I fried my G-OSD. The LED light no longer comes on. I've tested with a Volt meter and am getting 12.5 volts at the Batt-1 connection, but no light to indicate the board is getting power... any suggestions?
I'll give it a try, but I am assuming something else may be fried, unless the LED is there as some sort of fuse/point of failure to protect the rest of the electronics. I'll get back to you.
The LED burns out like a fuse. Whether an LED(Light Emitting Diode), or a regular diode, they are for keeping the flow of electricity going in one direction. You could also bypass the LED with a diode of the same rating as the LED you burned. I wouldn't just bypass it with solder, because you bypass the circuit protection you get from the diode.
AM i missing something why is there not a IN and OUT ?
Please exccuse the poor attempt at a diagram.
(CAM) ->
CAM-VID-OUT ...
... wire...
OSD-VID-IN ->
( OSD )
OSD-VID-OUT ->
... wire...
TX-VID-IN ->
(TX)
The OSD just adds a information to the video feed, so it doesn't need an in and out. Just join the osd video wire to the camera/tx video wire. On my setup I only have 1 wire connected to the OSD video, It already gets it ground from the battery. If you need a picture let me know.
A pic would be great. I was under the impression that the OSD took the Vid in, mixed/overlayed the display stuff and then put that on a vid out.
I think i understand what your saying, but a pic would help me and others who buy the same kit.
Ask for 200 points and i will give them to you.
Hi Outbrake, updated to what? As far as I know, it only comes with one SW version. The CL-OSd flash that people mention in these pages as a way to improve this OSD (adds home arrow, distance to home...) is an open source program that you have to flash yourself via an USBasp programmer (4$ here in HK). If that was what you meant, google "CL-OSD" there's a page dedicated to it with all the SW you need listed as well as instructions. It took me a few hours (first time ever dealing with ATMELs...) but I managed it. well worth the effort!!!
Good luck!
J.
I did not notice any major difference, it's fast, but with the custom cl osd flash, you can set the refresh rate of the display up or down from the std 1per second.
j.
Sorry A search for 17172 does not bring any result. Anyway, you only need the USBasp (id 9171000003) and some basic soldering skills to reflash the g-osd.
Just to confirm the manual on the last page shows the OSD but im unsure which side (left/right) is the top/bottom of the unit. Looking at Roys vid below it appears the right of the OSD inthe manual is the bottom. This means the power black is on the bottom or closer to the underside.
Does this sound right ?
I had the same question! The black(-) is the pin closer to the circuit : if you hold the OSD with the G-OSD label towards you (as in the pictures above), then the pins closer to you are (-), and the ones further back, the ( ).
Where do I get RSSI data from? my receiver does not seam to have a separate output and I have not seen any receivers with RSSI output... I would like to use it though. Any help?
I don't know about other brands, but some FrSky Rx have RSSI out as a std option (check the D8R-XP here in HK), while others (e.g. D8 R II plus) can be reflashed to have the option. Depending on which telemetry system you use, I found some forums that highlight where you can get the signal, assuming you are ok to open your Rx and do a little soldering. Just google your brand name and "RSSI out". Good luck!
Mine worked for a while, then was not used for a while, now when I hook it up all works, but the GPS does not get a lock.. I am thinking that it may be the onboard battery, but after testing it, it is still good... any ideas?
I would try a clearer view of the sky, or try waiting longer. I have had connection times as fast as 10 seconds, but also as long as 5 minutes... If I have the GPS too close to a Video transmitter or Telemetry Receiver, it will NOT connect to Sat's, because the Sat signal is overpowered.
theoretically, you should have already all what's needed... But it depends if you have a compatible Controller RX. You should have an RSSI output on the controller RX. If not, maybe you could "create" it manually by finding whitch pin of your RX controller "Chip". what is the model number of your Controller TX and RX? Maybe I can help you ti find it?
I did some searches on the NET,and I found that your receiver seem to be compatible... BUT you will have to open it and solder a little wire on pin 1 of the A7105 chip (if your soldering skills are good as this chip is very small). As the OSD needs RSSI and Ground inputs, you should just plug the pin 1 of your A7105 to the RSSI input of the OSD. No other wire needed as your groung wire will be plugged with the power input. I hope I helped you!
Hi Kris, I am not sure I see the link between the RSSI signal, that defines radio signal strenght and distance of the model. Sure, there is some relation, the further you go, the weaker the signal, but it will change based on weather, where you fly, etc... Plus, as is, the rssi signal display in this OSD is just a value with no units.
Upgrading to CL-OSD (google it, there a whole page dedicated to it) uses the REAL GPS data to calculate an accurate distance from home. You also get a home arrow, making an average OSD system a great one!
Hi Renato, to reflash it you don't just need a cable but a programer that connects your osd to your pc USB port. You can get one from HK, search for USBasp. It costs about 4usd. All the instructions and flash programs can be found by googleing CL-OSD. I did it and love it!!!
Thanks for the help, I did request my usbasp and is now expected to arrive here along with the G-OSD, I believe that it will take approximately one month to arrive. When I am with him in his hand will get help installing the best program you have for him.
Perfektes OSD, jetzt finde ich auch im Dunklen wieder heim, sehr leicht und zuverlässig
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Maurice
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Got mine and installed it in my FPV plane. OSD showas wrong coordinates. I live in switzerland and it shows me coordinates from north germany!!altitude is above sea level, in my town woud be 265m and it shows 867m above sea level!!! It displays wrong batt. voltage, checked it with my voltmeter. it has no home pointer. Overall it`s a uselesss OSD for FPV because shows wrong informations, wrong altitude, wrong coordinates, no home pointer, wrong voltage...I will buy a better OSD but not anymore from hobbyking...
looks good i havent tery it yet but when i do i"ll leave a review.
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vdjfunx
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Excellent features and value (probably more so, once reflashed with distance and home arrow). Build quality is average due to hand soldered components. Crystal is loosely held in place, so needs reinforcing using hot glue or re-shrink packaging. Factory firmware displays lat/lon in GGA format, so conversion is necessary for display in Google Maps (see rcgroups), which confuses many into thinking the position is off by several dozen kilometers, which it isn't. GPS has a 1Hz refresh, but has a battery backup which accelerates time to get a fix. Overall good value product for a tinkerer willing to fix the weaknesses of the product.
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