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ESP8266 Boards
3C

ESP-02S

esp8266_esp_02s

The Tuya Killer.

ESP-02S

Pin-compatible with the Tuya WB2S module: desolder the stock one, drop this in, and your smart plug works for you instead of the cloud.

Good to know

  • The header is 2 mm pitch – it does NOT fit a breadboard (2.54), you need an adapter.
  • Keep copper pours and metal away from under/next to the antenna.
  • Flash mode: GPIO0 to GND at power-up; EN pulled high.
  • All signals are 3.3V, and it needs a stable supply too.

Pinout

ESP-02S – Pinout Tap to enlarge