Remzibi OSD
This page is related to the alternative hardware I made for the Poor Man’s OSD also known as Remzibi OSD.
Remzibi Homepage:
http://sites.google.com/site/remzibiosd/
Read more about the OSD on rcgroups.com:
http://www.rcgroups.com/forums/showthread.php?t=921467
The rc-cam.info forum:
http://rc-cam.info/viewtopic.php?p=9534
And on Pauls support page:
http://remzibi.happykillmore.com/
Here is the result – revision A of my hardware:
The hardware was designed after the original schematic from Remzibi with some minor modifications. Mainly some more pins for ADC inputs, the bottom side is almost flat to add a heat sink and the ISP connector has been changed to STK500 style.
I added diodes on all battery inputs to protect the circuit from wrong polarity. Also a LM2940CS-5 is used to generated the 5V supply voltage due to the lower voltage drop compared to the 78M05 and therefore lower heat dissipation.
The following two images showing the pin out of each PCB side.
PCB size remains the same like the original one and is 46mmx25mmx7mm with a weight of 9g.
You can download all files of my hardware design here:
Included are the schematic, layout, Gerber, BOM, License and original Remzibi files.
Of course my hardware is full compatible to the original Remzibi firmware and to Pauls aka happykillmore configuration tool:
For more details follow the links mentioned on top of this page.
The actual hardware and all further versions are releases under the TAPR Open Hardware License.
HI !
I wish to make a copy of your project but I can’t downlod the file “hardware”.The archive may be corrupt.
For this reason, I wish to receive a copy of this file via E-mail.
Thank you.
Best regards,
Mihai
YEs the archive is corrupted…can you fix it?
Thanks!
Hello,
I also have a problem downloading the hardware zip file.
It appears damaged and cannot be opened.
Can you email it to me?
Thanks for your good work and best regards,
Nigel.
I have no idea what kind of problems you have, but the files are not corrupted.
All open fine using 7zip, WinRAR 3.9 and the Windows internal ZIP integration. Tested with two different PC and operating system, XP and Vista.
Used Firefox to download the files.
So your problems are either related to the operating system, your ZIP tool or the browser.
Nothing to fix here.
Thank you for publishing your work.
Please tell me the software you used to create these gerber files. I have a problem when sending to pcb service.
The PCB layout was done using Target3001 v14, the Gerber files are exported out of Target.
For target see: http://www.ibfriedrich.com/
What problems you have with the Gerbers?
can you upload your schematic files done in target 3001?
I have some problems when I am trying to make the design in proteus and then do the pcb.
many thanks for all you share
Hello, I like this project, can the osd board pcb file to me.
The board layout is already available for download in Gerber format.
i burned the bootloader and load the burn the firmware using Megaload but it is failed to recognize in the remzibi cable test . Any advice
You wrote bootloader only – is a piece of software to write a proper firmware .
So use Megaload and write any firmware into OSD (ex. 1.75) by any USB->UART or rs232->UART cable , then OSD will pass connetion test as well as all settings .
Hello
Thank you for publishing this nice work.
Is it possible to buy somewhere this OSD PCB ?
Or where is it possible to manufacture is at reasonable coast ?
Thank you for your help
Best regards
Hi!
I build a OSD from scratch but now I have a problem, I want to burn the bootloader, but I don’t know how to set the fuses and lockbits! can you please tell me what they need to be?
Cheers,
Ramon
See http://remzibiosd.mictronics.de/bootloader
Hi!
Thanks for your response! I had found the page
and change the fuses as described, flashing the bootloader is going fine, but I can’t get any reponse out of the board through the FTDI breakout serial connection in the terminal program! I have also tried to flash the firmware directly that goes well, but also no response in a terminal program. Can I please contact you trough mail or can you send me a mail, that is a bit easier that through comments 
Thank you!
Ramon
Hi,
I have the same problem. After the bootloader flash there is no response via serial interface.
http://remzibiosd.mictronics.de/bootloader
Hi Michael,
I’ve flashed the bootloader using the http://remzibiosd.mictronics.de/bootloader instructions, but unfortunately OSD not responds via serial interface.
Do you have still access to the uC? So you can flash the bootloader again and again?
Did you set the fuses correct?
Is there any output from the OSD to a terminal program on PC?
You need to cross the RX/TX line from OSD to PC. Also the serial interface of the OSD is TTL level, can not be connected directly to a native RS232 serial port on a PC or USB serial adapter!
Where did you order your PCB’s from?
I’d like to use same company so there wont be any surprises with gerber-files.
I used https://www.haka-lp.de/home.html a manufacturer here in Germany.
They will make boards directly from the Target file, this avoids any risk with Gerber.
Another option is http://www.pcb-pool.com, they make boards as well from Target.
Any chances for you to share your target-files? It would be nice to make specific gerber files that fit to pcb-manufacturers guidelines.
Included in hardware file now.
Do you have Eagle CAD version, I’m not familiar with Target (I have used Eagle for some years) and some manufacturers give drc parameters for Eagle
No Eagle is not available.
Hi Michael,
What is the thickness of the PCB?
Bare PCB is 1.5mm, complete assembled <10mm.
Hi,
My OSD is working perfectly now! Although I cannot get it to work with the bootloader, I flash the firmware directly and then I can use it in the HappyKillmore GUI to flash the settings.
I have a question, as you can read here: http://www.rcgroups.com/forums/showpost.php?p=19632822&postcount=3688
The original creator of the Remzibi OSD has created a way to use it with MultiWii software, I want to do this to but with your OSD revision, can you please tell me what I need to alter on your board to get it to work with MultiWii software?
Thank you!
Ramon
I second Ramon’s request. Looks like all we need is to locate the software RX pad / pin. Remzibi has posted a how-to on his site here:
http://sites.google.com/site/remzibiosd/7-artifical-horizon
Thanks Michael!
Chris
See wiki for hardware modification: http://remzibiosd.mictronics.de/configuration
Please report possible problems.
According to Remzibi RPM1 is wrong, it should be RPM2 which is connected to PIN12 of the MCU.
Sorry, fixed.
Hi Ramon,
What fuses do you program when flashing the firmware directly?
The same as this?:
http://remzibiosd.mictronics.de/_detail/bootloader:fusebity_m16_16mhz.jpg?id=bootloader
Thanks.
Yes, fuses are the same.
At last, it is alive.
China friend form Ebay sent the faulty MAX7456.
Yeaa!