RF Remote Control Module 1-Channel 5V - 315MHz Receiver Set smart car It also has two 3mm

It also has two 3mm built-in LEDs with corresponding resistors

adjust the onboard potentiometer

optical switching

Infrared receivers

RF Remote Control Module 1-Channel 5V - 315MHz Receiver Set smart car It also has two 3mmPractical Wireless Control Module for Maker, Student, and Prototype Builds The RF Remote Control Module 1 Channel DC 5V is a practical wireless control module from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need general project use, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as 5V. That makes it a solid