ARMtronix WiFi Bluetooth ESP32 4 Relay Board Based on NodeMCU LUA for IoT and Home Automation - Product Features
- Works directly with AC power 100 - 240 V AC 50-60 Hz.
- WiFi with MQTT or HTTP protocol (Bluetooth Optional)
- Product firmware can be updated/reloaded/changed as per user requirement.
- On board USB UART converter to program WiFi Module