Kyran Dale's blog
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Posts tagged "Hardware"
2 posts found
Nov 30, 2025
The Documentation Lied: Debugging a Hardware Conflict That Didn't Exist
900 lines of bit-bang I2C recovery code to work around a GPIO conflict that was never actually wired on the hardware.
room-tracker
ESP32
I2C
Debugging
Hardware
Nov 28, 2025
Deep Sleep Isn't Deep Enough: ESP32 Wake-on-Motion Adventures
Turns out GPIO reuse for I2C and wake signals creates a deadlock that makes your motion sensor completely unresponsive.
room-tracker
ESP32
Deep Sleep
Power Management
Hardware