Battery-powered ESP32-S3 rotary controller with native USB-HID, BLE/Wi-Fi, USB-C charging and power-path operation, a pressable 24-detent encoder, conventional PWM RGB status LED, and disconnectable low-current 3V3 power indicator.

Smart Wellhead Controller V1.1: ESP32 + LoRa Industrial IoT Node with Solar Power, Deep-Sleep Leak Sensing, and OLED HMI. Now upgraded with a solar charging and battery management stage featuring a TP4056/CN3791 charger IC, power-path switching, Li-ion battery protection, and integrated 3.3 V rail supply. #PowerBlock #SolarCharging #BMS