I thought about that but I wanted to reduce the stress off that 7805 on the raduino, so I added the buck converter to run the display and the extra nano. I have loaded the signal analyzer software on the nano. I have updated the firmware on the raduino to add the signal analyzer with a nextion display and now have the ability to upgrade the raduino firmware, externally. Progress!?
73,?
Kelly K5AID?