HC-SR04 Ultrasonic Distance Sensor Module — 2–450cm, 0.3cm Precision, 5V, Arduino (50-Pack) US$ 197.88 Min. order: 1 piece ★★★★★ 4.0 (244 reviews) Sold : Login>>
Arduino Uno R3 Basic Starter Kit with Breadboard | Retail Box for DIY Electronics US$ 83.84 Min. order: 1 piece ★★★★★ 5.0 (115 reviews) Sold : Login>>
XL4005 DC-DC Step-Down Buck Power Supply Module 5A Adjustable CC/CV Lithium Charger for Arduino US$ 72.76 Min. order: 1 piece ★★★★★ 4.8 (94 reviews) Sold : Login>>