1 Channel Relay Module Interface Board Shield For Arduino 5V/12V/24V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V

Product description:



1,The module complies with international safety standards,control area load area isolation groove;



2,Genuine relay Songle;



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