forum.pistar.uk

I have a rather ancient Raspberry Pi Model B Rev.2 board with the original 26 pin header. This board is not doing anything constructive at the moment so I thought I'd convert it to a Pi-Star node.

Can anyone tell me how to connect the 26 pin header to a 40 pin MMDVM board? I know the pinouts of the Model B, but I don't have any information on the pinouts of the MMDVM board.

Thanks for the help, however it's the pinouts of the MMDVM board I'm looking for - the Model B has these pinouts: https://www.raspberry-pi-geek.com/howto ... 1-and-Rev2

G6WQH wrote: ↑Sun Oct 16, 2022 5:20 pm Thanks for the help, however it's the pinouts of the MMDVM board I'm looking for - the Model B has these pinouts: https://www.raspberry-pi-geek.com/howto ... 1-and-Rev2

I'd think a starting point would be to look at the R-Pi 40-pin assignments.

Though what did you search on? Google on "MMDVM pinout" had lot's of hits...

https://n5amd.com/digital-radio-how-tos ... vm-pinout/
https://hvdnnotebook.blogspot.com/2018/ ... -need.html

Other than firmware flashing, it appears the only pins really needed are common to 26 and 40 pin R-Pi. At the least, they are the first 10 pins or so.

G6WQH wrote: ↑Sun Oct 16, 2022 5:20 pm Thanks for the help, however it's the pinouts of the MMDVM board I'm looking for - the Model B has these pinouts: https://www.raspberry-pi-geek.com/howto ... 1-and-Rev2

I would search for the MMDVM_HS_HAT, there are files and schematics on github.

Thanks for the help. I'll report back here once I have this working!