minimOSD Extra setup and customizing

If you are reading this, then you probably know that the minimOSD is the standard on screen display for the APM Arducopter or APM Arduplane. They tiny boards come with a software version that is likely outdated and has a poor layout. To fix this and upgrade the firmware to EXTRA read on:

  1. Buy a USB to TTL(3.3v) cable. 6 pin cables are easier to use but harder to find and they cost more than 4 pin cables. 4 pin will work, however if you use a 4 pin cable: every time you read or write to the OSD you will have to momentarily press the reset button 1 second before reading or writing. If you don’t press reset you will get an error. “failed to talk to boot loader”, Not a big deal… if you know beforehand.  This 4 pin cable is only $6.99 on Amazon Prime.
  2. Plug the cable into your PC, let it load its driver. Win7 is supported, if you use Win8 then use this $20 6 pin cable: Pay attention to when it installs, in the taskbar it will mention what COM port it uses, mine was COM 5.
  3. Connect the 4 pin cable to the OSD as follows:  black to GND, red to +5V, green to RX, white to TX. If it fails to connect in the next step; swap the green and white.
  4. Download the latest CT program and HEX file from the Extra Google Code site. Extract the CT files to a folder.
  5. double click on OSD_Config.exe, the GUI will open.
    Extra Config 1
  6. The app is fairly intuitive. Be sure to press the reset button on the OSD 1 second before you press “read from OSD” or “Save current tab to” or updating firmware.
  7. Select COM port.
  8. Test connection by pressing reset then “read from OSD”, you should see the data propagate.
  9. Firmware (HEX) update is available from the tab on top, be very quick with the reset button or it will error out.
  10. After firmware update then press read again, then TAB over to Panel 1 and select options and customize OSD items. When done customizing click “save current tab to”.
    Config 2
  11. update char set, use “latest” char set file located in the OSD config utility folder.
  12. reboot, test, done.

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