I have a project where I have to buy a lot of Dues (over 150 so far). I'm seeing this issue with about one out of every 25: They work fine when connected via USB to a computer. But they do not work when 12v is applied to the Due 2.1mm power connector, or when 12v is applied to the Vin pin. It is no…

Cannot power Arduino Due with external power (only USB)

Topic		Replies	Views
Cannot power Arduino Due with external power (only USB) IDE 1.x	1	436	May 5, 2021
DUE External Power Not Working Due	5	2127	May 6, 2021
Powering Due with Vin and GND pins Due	7	6983	May 6, 2021
troubleshooting Arduino Due board IDE 1.x	3	534	May 5, 2021
DC supply problems. Faulty board? Due	7	1405	May 6, 2021