Board Electric Expansion - The workmanship is very strong, from patch to welding, step by step strict control, carefully made.
Board Electronic Building - The product is featured with high quality, stable performance and long service life.
Block Sensor IO - The 595 serial digital interface can be connected to the LCD module with a cable.
SHIELD V1 electronic - Allow the board to connect more modules at the same time for more experiments.
building block sensor - A set of VCC/GND power supply interfaces, so that each interface can be connected to a single module without sharing a limited power supply pin.
