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3answers
393 views

How can I get my (Arduino) Pro Micro schematic to allow me to program it through GPIO instead of USB

I'm trying this project so far I've got the schematic of a Pro Micro, which is powered through GPIO from a Raspberry Pi Zero, and want to remove the micro usb connection and able to flash it using an ...
9
votes
3answers
802 views

Programming many Arduinos simultaneously with a wireless broadcast

I will have many microcontroller-based devices which will be independent from each other, but all will run the same program. I would like to upload a program to all of them at the same time with a ...
2
votes
0answers
162 views

Atmel SAM MCU (on Arduino Due) only boots after second power up

I am using an Arduino Due as a prototyping board for a microcontroller project. The due has the chip Atmel ATSAM3X8E, with an ARM Cortex-M3 core. I am programming the flash directly using Atmel Studio ...
0
votes
3answers
73 views

Reversed Input Voltage Arduino Mega timeout communication with programmer error

On the barrel connector I accidentally reversed the input voltage to an Arduino Mega. The center post received ground while the outer connection received +12DVC, basically I have the Arduino -12VDC. I ...