Ultrasonic Bot
A version of the base robot that uses an HC-SR04 ultrasonic "ping" sensor for distance.
Ultrasonic Bot
Key Features
- Lab: Ultrasonic Ping Sensor Lab
Key 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 $20 (base robot $19 plus an HC-SR04 sensor about $1).
Parts
| Part (price) | Role |
| Cytron Maker Pi RP2040 ($10) | Controller board (built-in RP2040) |
| HC-SR04 Ultrasonic Sensor | Sensor |
| Piezo Buzzer / Speaker | Sound output |
| 830-Point Breadboard ($1.10) | Breadboard |
| Micro-USB Data Cable ($2.50) | Power and programming cable |
Microcontroller listed first. Prices shown only where known; see the source book for quantities, wiring, and current prices.
About this kit: From the STEM Robots collection.
Source: STEM Robots
Source: STEM Robots