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Line Follower Bot

Kit photo needed

We don't have a photo of the assembled kit yet. The image below shows a key part.

Key part: TCRT5000 IR sensor module

Key part: TCRT5000 IR sensor module

A robot that follows a line on the floor using TCRT5000 IR reflectance sensors.

Source book: STEM Robots
Kit page: https://dmccreary.github.io/stem-robots/kits/line-follower-bot/
Printable one-pager: line-follower-bot-one-pager.html

Features

  • Lab: Line Follower Bot

Benefits

  • Free, open lessons: the STEM Robots textbook has the kit page, wiring, and MicroPython code.
  • Real-world data: students read sensors and turn measurements into decisions.
  • Budget: about $21 (base robot $19 plus two TCRT5000 sensors about $1 each).

Parts

  • Raspberry Pi Pico ($4) — Microcontroller
  • Cytron Maker Pi RP2040 — Microcontroller
  • 10K Potentiometer — Input knob
  • TCRT5000 IR Reflectance Sensor — Sensor
  • 830-Point Breadboard ($1.10) — Breadboard
  • Micro-USB Data Cable ($2.50) — Power and programming cable