Electronics and Embedded Systems, Microcontrollers, Arduino: What is I2C (Inter Integrated Circuit) Communication and I2C Scanner
![Qr /1D/2D/Code Scanner V3.0 Barcode Scan Recognition Module With 0.96 Inch IIC I2C Serial GND LCD LED Display Module|Public Broadcasting| - AliExpress Qr /1D/2D/Code Scanner V3.0 Barcode Scan Recognition Module With 0.96 Inch IIC I2C Serial GND LCD LED Display Module|Public Broadcasting| - AliExpress](https://ae01.alicdn.com/kf/H2c74e8c0542f4e64ac7e226891c7f9a6s.jpg)
Qr /1D/2D/Code Scanner V3.0 Barcode Scan Recognition Module With 0.96 Inch IIC I2C Serial GND LCD LED Display Module|Public Broadcasting| - AliExpress
![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 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](https://pbs.twimg.com/media/DWR1-fuVQAA3wGX.jpg)
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
![I2c sensors not sending data but showing up in i2c scanner and working on arduino - Libraries - Particle I2c sensors not sending data but showing up in i2c scanner and working on arduino - Libraries - Particle](https://aws1.discourse-cdn.com/business7/uploads/particle/optimized/3X/3/a/3ad0bf79a88f3a19a832ac34fb2e6127a3b1956b_2_517x219.png)