Cardboard Robotic Arm
Two-servo arm that picks up a light object and sets it down. QA used the copilot prompt below; cutouts, wiring, and firmware came back in one session.
Prompt
Build a cardboard robotic arm with two micro servos. One joint at the base, one at the grip. It should pick up a ping pong ball and put it in a cup. Use an Arduino Uno. Give me A4 cutouts, wiring, and code.
Generated wiring
Generated code
Firmware
// Sample copilot output: robotic arm
#include <Servo.h>
Servo base;
Servo grip;
void setup() {
base.attach(9);
grip.attach(10);
}
void loop() {
base.write(40);
delay(400);
grip.write(20);
delay(300);
grip.write(90);
delay(300);
base.write(140);
}QA photos

Parts
- Arduino
- servo
- cardboard
- jumper wires
Difficulty and time are from the QA log for this prompt, not a timed class period.
If this build gets stuck
Try this prompt opens the copilot with the text filled in. It does not run a generation until you send it.

