3S 25A Li-ion 18650 BMS PCM Battery Protection Board with Balance for Li-ion Lipo Battery Cell Pack $ 1.47 (0)
Mini DC-DC Boost Step-Up Converter Module 3V-9V to 12V Adjustable Voltage Regulator PCB Board 5V/8V/9V $ 0.58 (0)
DIY LED Driver Module, Sound Light Control Switch, DC 3V-30V, Photosensitive Voice Sensor, for 5V/6V/12V/24V $ 1.27 (0)
1x4 Keypad Module for Arduino DIY Kit - 4 Independent Buttons for Student Projects & Experiments $ 0.61 (0)
Photosensitive Light-Controlled Sound and Light Alarm DIY Soldering Kit for Electronics Training $ 0.81 (0)
Solar Light Circuit Control Panel 3-24V for Lithium & Lead-Acid Battery Automatic ON/OFF for Lawn Light $ 0.48 (0)
1 Pcs RJ45 Adapter Board to XH2.54 Modular Ethernet Connector Adapter Network Interface + Breakout Board + Pin Header $ 0.81 (0)
LM393 Soil Moisture Sensor Module, Hygrometer Detection, Humidity Sensor for Arduino DIY Robot Smart Car $ 0.71 (0)
IR Infrared Transmitter Module Ir Digital 38khz Infrared Receiver Sensor Module For Arduino Electronic Building Block $ 0.49 (0)
3-Pin Voice Sound Detection Sensor Module for Arduino DIY Kit - Smart Vehicle Robot Helicopter Airplane Car $ 0.62 (0)