jeffmer

Hi, if my memory is correct, I saw the same error message in DaFlasher when I forgot to tick the Use Nordic Bootloader box.

Don’t know how that happened. I have deleted the duplicate file. The error that you have is usually caused by having the wrong target selected.

Is this an issue with the Attiny85 or the Nano version? My advice would be to see if you can build the nano version which uses fairly standard Arduino libraries.

Thanks for your kind words. I am afraid that I cannot find the original reference, so I have no idea whether it should be 1.7 or 0.17. I was not...

Thanks, that’s really interesting - still would not rely on it in a medical situation!

I don’t have a circuit diagram but you can see the connections from the picture in the nanopulsePPG directory.

Green wire goes from one side of the button to -ve. White wire, your purple? Goes from other side of button to D3

Glad you got it to work. I have not tried it in an MStack since the rotation stuff was incorporated. I can update the example or happy to accept a...

Thanks - these are from an update to the repository by vitasam.

It does not support a touch controller. There is support for a touch controller in the Adafruit circuit Python libraries. Frame buffer is a standard Micropython module.