Posts tagged "ESP32"

Implementing end-to-end gyroscope and accelerometer recording for patient monitoring, from embedded firmware to database to web interface

When your device sleeps after 30 seconds, you need to capture logs non-interactively or you'll miss the critical errors.

Running an HTTP server on the ESP32 is power-hungry, but having the camera poll for commands gives you remote control without the battery drain.

900 lines of bit-bang I2C recovery code to work around a GPIO conflict that was never actually wired on the hardware.

Turns out GPIO reuse for I2C and wake signals creates a deadlock that makes your motion sensor completely unresponsive.

The ESP-IDF toolchain is a nightmare to install, but the official Docker image makes it disappear completely.

Calling esp_wifi_stop() triggers a disconnect event that immediately tries to reconnect, leaving WiFi in a weird half-stopped state.