You have an ESP8266 board like the Wemos D1, a Li-Ion battery, you want to build a small battery-powered sensor that wakes up every few minutes to do something, and you don’t want to delve into ...

Just hacking an 18 V battery into the existing wiring and controls ... But perhaps the most exciting part of the PowerJeep project is the ESP32 that’s been added into the mix.

LILYGO T-Watch S3 Plus is an ESP32-S3 smartwatch with WiFi, BLE, and LoRa, gaining a GPS module and a larger battery against ...