Tag is 4-channel relay module low-level trigger
Relay&Relay Module 4-channel relay module expansion board low-level trigger 5V/9V/12V/24V Arduino
4-channel relay module expansion board low-level trigger 5V/9V/12V/24V Arduino
Product description:
1 , the module complies with international safety standards, the control area and the load region isolation trench ;
2 , using double-sided FR-4 circuit board design , high-end chip production ...Read More
4-channel relay module low-level trigger