The “w” in the name is for WiFi as the built-in ESP-32 module then takes the moisture reading and sends an update wirelessly via MQTT.

还在为MCU的WiFi连接方案发愁？RT-Thread社区开源ESP-Hosted驱动，通过标准SPI接口即可实现，并且该仓库已整理成RT-Thread软件包。RT-Thread ESP-Hosted ...

With the ESP-8266 WiFi module, we have a tiny, tiny device with a WiFi radio, and just enough processing power to do something interesting. What does that mean? WiFi throwies.

Designed by Namnam in Vietnam, the ESP32 Modbus gateway is built to communicate with PLCs and industrial sensors over Modbus ...