Excavator Arm Kit - DIY Hydraulic Robotic Arm photocell The radio receiver and transmitter

The radio receiver and transmitter can operate simultaneously

Product LED 4 Bits Display Module TM1637 Interface TM1637 Driver / controller TM1637 Driver TM1637 Digits 4 Interface 2-wire (CLK + DIO) Colon Yes (for clock display) Pinout & usage notes

press down with a hot iron

ATmega328P-based: A proven microcontroller for countless beginner and intermediate projects

The Raspberry Pi B+ / Pi 2 / Pi 3

Excavator Arm Kit - DIY Hydraulic Robotic Arm photocell The radio receiver and transmitterPractical Electronics Module for Maker, Student, and Prototype Builds The Excavator Arm is a practical electronics 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 electronics module. That makes it a solid choice for Arduino,