Learning Goal

In this lesson students will learn how the robotic arm works through code.

The goal is to get a feel for the overall process of robotic control systems, not to memorize every line of code.

Students will also learn about the Controller ESP32 and Robot Arm ESP32 communicate with each other, and how joystick input values are processed into real robotic arm movement.

1. One Robot, Two Programs

This robotic arm project uses two ESP32 boards which means the system requires two separate Arduino programs.

Controller Code

The Controller ESP32 program handles:

• Reading joystick values
• Organizing data
• Sending data wirelessly

Its role is to send input information to the robotic arm.

Robot Arm Code

The Robot Arm ESP32 program handles:

• Receiving data
• Processing input values