ESP32, S3, C3, C6: which one to buy?
The ESP32 chip families compared by use case: basic IoT, camera, AI, Thread/Zigbee.
ESP32 Experience
Things worth knowing before you fry another chip.
ESP32 GPIO pins to avoid
Strapping pins, input-only pins, ADC2 and WiFi.
Deep sleep: months of battery life on an ESP32
Using deep sleep and RTC memory, and the mistakes that drain batteries.