Robotics with Raspberry Pi (2020)

Learn the basics of electricity, including current, voltage, resistance, and Ohm's Law, through hands-on demonstrations with batteries, resistors, and a multimeter, highlighting safe power for robotics with Raspberry Pi.

Connect two 12-volt dc motors to an h-bridge and Raspberry Pi four, powered by an eight-cell 1.5-volt battery pack, to drive and turn with a line of code and joysticks.

Connect the HC-SR04 ultrasonic sensor to a Raspberry Pi via a breadboard with a 1k resistor, then script centimeter-range distance measurements up to 50 cm and plan obstacle avoidance.

Extend the distance sensor to measure distance and steer the robot left or right. Use gpio zero, random, and time to turn at 30 cm and move forward.

Build a line-following robot with a Raspberry Pi, wiring three infrared sensors to the breadboard, and implementing a Python script to detect lines and steer the motors.

Create a startup python script that runs at boot to control the robot, using a killswitch and infrared sensor to stop motors, plus logging with a lamp indicating system startup.

Learn to connect a PS4 controller to a Raspberry Pi via Bluetooth, install the pygame-based library, and map buttons and hat inputs to drive a robot with Python.