Raspberry Pi ESP32 MicroPython Touch & Sound Tutorial

This MicroPython tutorial demonstrates utilizing the ESP32’s built-in capacitive touch sensors. A simple music player is constructed utilizing a JQ6500 MP3 module connected to an ESP32 via serial communication. The touch interface provides feedback by using pulse width modulation to vary LED brightness.

Raspberry Pi INA219 Tutorial

This tutorial demonstrates how to measure DC power consumption with a Raspberry Pi and an INA219 breakout board. The I²C board is combined with a 16×2 LCD display to track voltage, amps and watts.

Raspberry Pi ESC Motor Tutorial

This tutorial demonstrates how to control and measure the speed of a brushless DC motor from the Raspberry Pi using a low cost electronic speed controller. A TCRT5000 reflection sensor is used to measure RPM, the results are displayed on an I2C 7 segment numeric LED display and a push wheel switch allows user input for throttle control.

Raspberry Pi Analog Water Sensor Tutorial

Tutorial demonstrating how to connect analog sensors to the Raspberry Pi using SPI and I²C analog-to-digital converter chips such as the MCP3002 and the ADS1115. Examples include low cost analog water level/detection and water pressure sensors.