ESP8266 1.8.3-80 i2c.scan shows all available ports · Issue #2376 · micropython/micropython · GitHub
![sensors - Problems with I2C connection on ESP8266 - 12F, which pins should I use? - Arduino Stack Exchange sensors - Problems with I2C connection on ESP8266 - 12F, which pins should I use? - Arduino Stack Exchange](https://i.stack.imgur.com/rI3rg.png)
sensors - Problems with I2C connection on ESP8266 - 12F, which pins should I use? - Arduino Stack Exchange
Austin Saint Aubin on Twitter: "Rewrote i2c scanner for Arduino, ESP8266, and ESP32. Makes use of OLED display. Works well, and is fast. Helps me to verify sensors are wired correctly and
![Help getting I2C working on Wemos D1 R2 (ESP8266) - Networking, Protocols, and Devices - Arduino Forum Help getting I2C working on Wemos D1 R2 (ESP8266) - Networking, Protocols, and Devices - Arduino Forum](https://aws1.discourse-cdn.com/arduino/optimized/4X/6/5/5/655cdac8eff87a53cfbe7d49ee7af2f2113817eb_2_500x216.png)
Help getting I2C working on Wemos D1 R2 (ESP8266) - Networking, Protocols, and Devices - Arduino Forum
![NodeMCU ESP8266 / ESP8285 Arduino #1์4 NodeMCU ESP8266 I2C Scan : ESP8266 nodemcu หา Address I2C Arduino ESP8266 - ArduinoAll ขาย Arduino ซื้อ Arduino อุปกรณ์ Arduino Sensor ส่งฟรี NodeMCU ESP8266 / ESP8285 Arduino #1์4 NodeMCU ESP8266 I2C Scan : ESP8266 nodemcu หา Address I2C Arduino ESP8266 - ArduinoAll ขาย Arduino ซื้อ Arduino อุปกรณ์ Arduino Sensor ส่งฟรี](http://www.arduinoall.net/arduino-tutor/wp-content/uploads/2016/11/Snap81.jpg)
NodeMCU ESP8266 / ESP8285 Arduino #1์4 NodeMCU ESP8266 I2C Scan : ESP8266 nodemcu หา Address I2C Arduino ESP8266 - ArduinoAll ขาย Arduino ซื้อ Arduino อุปกรณ์ Arduino Sensor ส่งฟรี
![NodeMcu and I2C: How to start and using the PCF8574A I2C port expander on ESP-01 board – Primal Cortex's Weblog NodeMcu and I2C: How to start and using the PCF8574A I2C port expander on ESP-01 board – Primal Cortex's Weblog](https://primalcortex.files.wordpress.com/2015/08/selection_007.png)
NodeMcu and I2C: How to start and using the PCF8574A I2C port expander on ESP-01 board – Primal Cortex's Weblog
![I2C displays don't work with LoLin NodeMcu Lua ESP8266 CH340G WIFI - Networking, Protocols, and Devices - Arduino Forum I2C displays don't work with LoLin NodeMcu Lua ESP8266 CH340G WIFI - Networking, Protocols, and Devices - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/e/c/2/ec238d6efc699320951db7dedd7a44be454f9c10.png)