# I2C Master Send, Slave Receive Example

# !IMPORTANT
Use I2C Version 2 (activate it in menuconfig I2C_ENABLE_SLAVE_DRIVER_VERSION_2)

## Test Setup

- 2 x ESP32C3
- 4 x Jumper Kabel
- 2 x 4,7kΩ

![Example Setup](I2C_Example.drawio.png)

I2C Bus Pulled Up to 3,3V

## Flash the Program and Monitor

```bash
idf.py flash -p /dev/ttyACM0
idf.py flash -p /dev/ttyACM1
```

```bash
idf.py monitor -p /dev/ttyACM0
idf.py monitor -p /dev/ttyACM1
```

You should see
`Received from master: Hello I2C`
and
`Master Sending Data`