This is an expansion board for the ESP-01S WiFi module, though it can be used with other ESP modules as well. The module has a USB to Serial(TTL) CH340G chip onboard. The board allows for debugging and programming from your PC.
The board has a built in switch to allow switching between download your code and flashing the firmware of the ESP8266.
- Working Voltage: 5Vdc
- Working current: 500mA
- Communication Voltage: 3Vdc
- Dimensions: 55x18x12mm
- Weight: 5.6g
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