2/4/8 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board
USD 20.73 USD
Specifications
| Size | 2CH Board |
| Brand | Unbranded |
| Origin | Mainland China |
| Protect Feature | Sealed |
| Use | General Purpose |
| Certification | NONE |
| High-concerned Chemical | None |
The GND, RX, TX, and 5V of ESP8266 are connected to the GND, TX, RX, and 5V of the external TTL serial port module respectively. The IO0 should be connected to the GND when the download is complete.
