实现功能 ESP8266将扫描到的WiFi按信号强度显示在OLED屏幕上 硬件准备 ESP8266:NodeMCU WiFi OLED:1.3’ 控制芯片:SH1106 软件准备 Arduino IDE U8g2lib 连线 GND – 地 VCC – 3.3v OLED SCK – GPIO 14 (NodeMCU D5) OLED MOSI – GPIO 13(NodeMCU D7) OLED CS – GPIO 15 (NodeMCU D8) OLED DC – GPIO 2 (NodeMCU D4) 程序 /* WiFiScannerOLED.ino -- A simple ESP8