This is a mini Arduino based on-screen display board. It's tailored for use with ArduPilot Mega and the MAVlink protocol, and designed to be as small as possible.
It's main components are an ATmega328P 8 bit microcontroller with an Arduino bootloader, and a MAX7456 monochrome on-screen display. Programming is done through an FTDI-compatible 6-pin cable.
It features two independent power and ground sections to isolate the OSD's analog stage: a +5V section for the ATmega and the OSD's digital stage, powered through the FTDI cable or other +5V source; and a regulated +5V section for the OSD's analog stage, powered through the video in/out header and capable of handling up to +12V input.
• ATmega328P with Arduino bootloader • MAX7456 monochrome on-screen display • FTDI cable compatible pinout • Standard 6-pin ISP header • Two independent power sections with an LED indicator on each • Solder jumpers for combining the power sections • +5V 500mA regulator for up to +12V supply input (5-12v range) • Solder jumper for PAL video option • Exposed test points for HSYNC and LOS
Specs: Voltage: 5-12v Dimensions: 50 x 18 x 10mm Weight 4g
Please see the file uploaded under the files tab for Developer credits, Links to source code and other information!
I have a problem with my minimOSD, i just get "Waiting for Mavlink heartbeat", ive connected it in every way possible to the Tx/Rx part of the naze32 and it still wont work. Can it have something to do with software? i use ardupilot 2.3
A great 100% compatible minimosd. I have a few originals and bought a clone from ebay a few months ago. The damn clone wouldnt flash. I tried all the hit reset nonsense and still a no go. However this clone does work. Just hookup my FTDI cable and the minimosd extra config tool and everything just works. It came preloaded with some ancient Arducam firmware, which i quickly replaced with minimosd-extra.
This OSD only displays information provided by the APM to which it has to be connected. Then you configure using a tool what you want on it. Go search it in the ardupilot . com website and you'll figure out what it can display. This is NOT a standalone OSD.
BuBu1 is correct, however. What the minimosd does is listen via the cable to the stream of mavlink messages that the APM pushes out all the time. These msgs include many details such as the values of sensors, like gps, compass, altitude, speed this and that. Its basically watching the same data that would also go down the radio to a ground station for display on a pc or something.
Pedro, I am having the same issue. It seemed like the first time I hooked mine up to the nova it seemed like it was working , but I was getting No MAV Data! on the newest minimosd firmware. I just tried minimosd extra 2.2 and it boots, but then it just sits at the startup screen. I have tried the same parameters in MP as you did. I also tried clicking the button under the OSD menu in MP. Says to click it only if you are having problems with your osd not updating. It seems to just change almost all the SR0 and SR1 values to 2.
excellent product, got it working with multiwii easier enough after flshing rush-osd and setting it up via rush gui. would be nice if you had jumpeers for your external monitor leads rather than having to solder onto the main chips legs but that it a problem with the initial design not hobbykings copy of that. i run mine off 5v with the soldered pads.