Using an NPN Capacitive proximity sensor as an object counter with a Raspberry Pi and displaying the information to a 16x2 I2C LCD
Instructions:
- Connect the I2C LCD Display like this (check diagram): VCC -> Raspberry Pi 5V, GND -> Raspberry Pi GND, SDA -> Raspberry Pi SDA, SCL -> Raspberry Pi SCL
- Connect the capacitive sensor like this (check diagram): BROWN -> Power Supply 12v, BLUE -> Power Supply GND, BLUE -> Raspberry Pi GND Pin, BLACK -> Raspberry Pi GPIO 4
- Enable I2C in the Raspberry Pi: tutorial here
- Install required dependencies with:
sudo apt install gpiozero python-smbus git - Download code from this repo with:
git clone https://github.com/d3vCr0w/raspberry_pi_capacity_sensor_i2c_lcd.git - Change directory to the downloaded folder:
cd raspberry_pi_capacity_sensor_i2c_lcd - Run the script with:
python sensor.py