Attiny-wdt » History » Revision 2
Revision 1 (laforge, 08/10/2022 10:24 AM) → Revision 2/8 (laforge, 08/10/2022 10:26 AM)
h1. @attiny-wdt@
@attiny-wdt@ is an OSHW + open source firmware project of turning an Attiny{4,5,9,10} microcontroller into a hardware watchdog that can be used to reset another CPU/SoC when it gets stuck.
The primary use case was to use it with Raspberry Pi devices. Those do have a built-in hardware watchdog themselves, but unfortuantelly it is not documented at the register-level and there is no option to enable it straight from the boot loader, so it is not really providing the kind of guarantees one would expect from a watchdog.
h2. Pictures
The pictures below show one of the first three hand-soldered prototypes:
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