Building a line follower is one of the most satisfying first projects for any young engineer. Your DigiBot 2.0 kit makes it surprisingly simple — no prior knowledge needed.
What You'll Need
- DigiBot 2.0 main board
- 2× IR sensors (included)
- 2× DC motors (included)
- Jumper wires
- Black electrical tape (for the line track)
Step 1 — Create Your Track
Lay black electrical tape on a white surface in a loop. Keep curves gentle — a 30cm radius works best for first runs.
Step 2 — Wire the IR Sensors
Connect the left IR sensor to pin A0 and the right IR sensor to pin A1 on the DigiBot main board. The sensors detect when they're over the black tape versus the white surface.
Step 3 — Connect the Motors
Attach the left motor to Motor Port 1 and the right motor to Motor Port 2. Double-check the polarity — red wire to (+), black to (−).
Step 4 — Upload the Code
Your kit's instruction guide (pages 12–15) has the complete beginner code block. If you get stuck, ask Docky AI — just describe the step you're on and it'll walk you through it.
Step 5 — Test & Tune
Place your robot on the track and switch it on. If it veers off, adjust the sensor height (2–3mm above the surface is ideal). Within a few tries, you'll have a robot that follows the line perfectly.
Pro tip: Try making the track more complex — figure-8s and tight corners are a great intermediate challenge once you've nailed the basics.
