Attiny-wdt » History » Version 2
laforge, 08/10/2022 10:26 AM
| 1 | 1 | laforge | h1. @attiny-wdt@ |
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| 3 | @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. |
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| 5 | 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. |
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| 7 | h2. Pictures |
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| 9 | 2 | laforge | The pictures below show one of the first hand-soldered prototypes: |
| 10 | 1 | laforge | |
| 11 | 2 | laforge | {{thumbnail(attiny-wdt1.jpg)}} {{thumbnail(attiny-wdt2.jpg)}} {{thumbnail(attiny-wdt3.jpg)}} |
