Display Bot

The base robot with a bright 2.42" 128x64 OLED, large enough to read the robot's numbers while standing over it.

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

Features

• Lab: Display Distance
• Lab: Display Face
• Lab: Display Setup
• Lab: Time of Flight Display Range Test

Benefits

• Free, open lessons: the STEM Robots textbook has the kit page, wiring, and MicroPython code.
• Ready-made curriculum: 4 additional lab pages walk students through the build step by step.
• Instant feedback: students see their code's results on lights or a display.
• Real-world data: students read sensors and turn measurements into decisions.
• Budget: about $32 (base robot $19 plus a 2.42" OLED about $13).

Parts

• Raspberry Pi Pico ($4) — Microcontroller
• SG90 Micro Servo — Motor / actuator
• SSD1306 128×64 OLED — Display
• VL53L0X Time-of-Flight Sensor — Sensor
• WS2812B NeoPixels — LEDs
• 830-Point Breadboard ($1.10) — Breadboard
• Micro-USB Data Cable ($2.50) — Power and programming cable