Hi I have a bunch of home made nodes that user a 328p at the core (with rfm12b and a temp sensor). I am able to burn the bootloader over SPI with no problem. and serial comms are fine too. In each case I am using an Uno as the interface (for uart I remove the 328p chip from the Uno). The bootload…

Flashing sketch over serial port to a bare 328p.

groundFungus October 31, 2017, 5:13pm 2

How are you resetting the target board during upload?

Topic		Replies	Views
Uploader problem, resetting directly to sketch Troubleshooting	10	4224	May 6, 2021
Cannot Upload to Uno during serial TX IDE 1.x	4	1390	May 5, 2021
Problems Uploading sketch to my Custom Arduino "Uno" 3rd Party Boards	31	7698	May 6, 2021
Sketches Only Upload Once IDE 1.x	11	3387	May 5, 2021
[Fixed] Unable to upload to AtMega328 on breadboard 3rd Party Boards	36	15550	May 6, 2021