Kits
Ultrasonic Parking Sensor Kit – ESP32 + HC-SR04 + NE555 + Breadboard
$21.99 per unit
Only 2 left
Build your own ultrasonic parking sensor system that detects objects from 2 to 450cm and provides variable-rate audible proximity warnings, just like the parking sensors in modern cars. The HC-SR04 measures distance with 3mm accuracy while the ESP32 processes readings and controls the NE555 alarm circuit to beep faster as objects get closer. Three-zone LED indicators show green, yellow, and red proximity levels. Includes breadboard prototyping setup with power supply and jumper wires. Follow our step-by-step guide to complete the build in about 2 hours. Great for learning distance measurement, signal processing, and output control.
Subtotal (1×)$21.99
Shipping$4.00
USPS First Class (up to 4 oz)
NY Tax (8.375%)$1.84
Est. Total$27.83
Specifications
| Includes | ESP32 DevKit + HC-SR04 Sensor + NE555 IC + Breadboard + Power Module + 65 Jumper Wires |
|---|---|
| Range | 2-450cm with 3mm accuracy |
| Warning | Variable-rate NE555 beep circuit (buzzer not included) |
| Zones | 3 proximity zones (green/yellow/red LEDs not included) |
| Difficulty | Intermediate |
| Build Time | 2 hours |