Raspberry Pi Safe Reboot and Shutdown Button
Contributors:
bboyho
bboyho 
Resources & Going Further
For more resources, check out the links below:
- GitHub Repo
- eLinux.org Wiki: Wake from Halt - For certain versions, you can wake the Pi up by shorting pins together rather than disconnecting the power supply. However, caution is advised as these GPIO pins are adjacent to the power pins. You would want to solder a button to the pins to avoid accidentally shorting the power pins.
Need some inspiration for your next project? Check out the Pi AVR Programmer! We implement a shutdown code after programming and testing boards.
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In this tutorial, we will use a Raspberry Pi 3 and the Pi AVR Programmer HAT to program an ATMega328P target. We are going to first program the Arduino bootloader over SPI, and then upload an Arduino sketch over a USB serial COM port.
Or check out some of these related tutorials:
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