Jrifedptry Development Board ESP8266 Breakout Board ESP8266 Expansion Board GPIO 1 Into 2 for 38 Pins ESP8266 ESP-12E NodeMCU Development Board

[GPIO 1 into 2]: This expansion board can expand one GPIO pin of Development Board to two, which is convenient for users to reuse pins for large-scale smart home projects. [Double-Layer PCB]: The expansion board is a double-layer board. One pin is wired on both sides. Therefore, the circuit is stable and highly reliable, and there be no poor circuit contact and unstable signal transmission. [2 Type Connections]: Two connection methods: Pin Header Connector & Screw Terminal. Just select them according to your purpose. [For ESP8266 ESP-12E]: It is fully compatible with for ESP8266 ESP-12E. The board of this version has been soldered completely. No need to solder parts by yourself, which is very convenient to use.