I have a Node MCU ESP-32S V1.1 Dev board and have set it up to measure my solar array and battery voltage with the appropriate voltage dividers. The information is gathered and sent to my local influx data base.
Beam is an easy and affordable way to control and monitor 3D printers via WiFi, USB-enabled serial, and SD I/O. Beam is very robust and power-efficient as it runs on an MCU (ESP32) while still offering a wide range of functionalities. ...
Heltec Meshtastic LoRa IoT SX1262 ESP32 LoRa OLED Display WIFI Lora 32 V3 Development Board for Arduino 2PCSUSD 35.50-42.99/lot Heltec Meshtastic LoRa Smart Price Tag E-Ink Display with ESP32 and LoRa Black and White 2.13-Inch 863~928MHz SX1262 Wi-Fi BLEUSD 17.50/piece ...