In this post we are reviewing the ESP-01 Wi-Fi Relay Module. It is one of the cheapest smart switches you can purchase currently for making smart home, internet of things, and other wireless do it ...

Because of the OTA update you need ESP01 with 1MB flash (ESP01S)! In this example I used a 5V usb light. This is my way, you can choose yours. If you don't know how does it work, please don't use it.

Tasmota is a very clever open-source custom firmware that runs on any smart home device, which uses the ESP Wi-Fi chip. It provides local control of the smart devices through MQTT, HTTP, Serial, or ...

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