Weike Electronics is a professional manufacturer and exporter that is concerned with the design, development production and marketing of arduino, 3d printers, raspberry pi and STM32. Our Dream is to make the best price and best quality produce for customers. So we would like to receive your valuable suggestions for our products and we can improve them for you.
Product description:
1, The module complies with international safety standards, control area load area isolation groove;
2, Genuine relay;
3, With the power and relay action instructions, pull bright disconnect does not shine;
4, When a signal in the signal input terminal, the common terminal and the normally start conduction;
5, Microcontroller development board can be used as a module that can be used as a home appliance control;
6, The control of the DC or AC signal, can control 220V AC load;
7, There is a normally open and a normally closed contact;
8, Blue KF301 terminals to the line of control is more convenient.
Description of the high and low trigger, friends do not understand Take a look at:
High level trigger is a trigger voltage between the signal input and ground can be understood as a way of the signal input terminal and VCC cathode short trigger;
Low trigger means is the voltage between the signal input terminal and the ground for the OV trigger mode can be understood as a way of the signal input terminal and GND negative short trigger
