and will only need to be turned on when the watchdog timer needs to reboot the target device. Below is a protoboard built from this circuit, and is currently being used to watch a Raspberry Pi 2 ...

After a ton of careful design and consideration, [BigDumbDinosaur]’s computer included a real-time clock, a watchdog timer, a serial port, 256kB of ROM, and 128kB of RAM. It’s a really ...

It also explains the configuration of the watchdog timer as an interrupt source to generate a periodic interrupt that can be used to execute specific tasks. Connect the board to your PC using a USB ...