![pi 3 - Protect raspberry i2c pins with general ground connection with Arduino - Raspberry Pi Stack Exchange pi 3 - Protect raspberry i2c pins with general ground connection with Arduino - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/DtJoa.png)
pi 3 - Protect raspberry i2c pins with general ground connection with Arduino - Raspberry Pi Stack Exchange
![Demonstration of the I2C protocol. A simple example of turning the Arduino's internal LED on from a Raspberry Pi using I2C Demonstration of the I2C protocol. A simple example of turning the Arduino's internal LED on from a Raspberry Pi using I2C](https://projects.arduinocontent.cc/9a8cf593-61e7-4c83-a93a-df0d470a39b0.png)
Demonstration of the I2C protocol. A simple example of turning the Arduino's internal LED on from a Raspberry Pi using I2C
![Using Raspberry Pi, Pico Microcontroller and Arduino through I2C serial communications - Electronics information from PenguinTutor Using Raspberry Pi, Pico Microcontroller and Arduino through I2C serial communications - Electronics information from PenguinTutor](http://www.penguintutor.com/electronics/images/i2c.png)
Using Raspberry Pi, Pico Microcontroller and Arduino through I2C serial communications - Electronics information from PenguinTutor
![i2C: Communication between RPI and Arduino | by Jegathesan Shanmugam | Learning By Doing 404 | Medium i2C: Communication between RPI and Arduino | by Jegathesan Shanmugam | Learning By Doing 404 | Medium](https://miro.medium.com/max/1058/1*8pAaHVNdR9k7IBE5CyEFIg.png)