39+ Arduino Relay Module Schematic PNG. A relay is an electrically operated switch. I came to this page looking.
2020 16 Channel 12V Relay Module For Arduino PIC ARM DSP ... from i00.i.aliimg.com
Each relay has a normally open (no) and a normally closed (nc) the following schematic shows how to connect the module to an arduino, i have only shown one device (lightbulb) connected to one relay. Tolako 5v relay module for arduino arm pic avr mcu 5v indicator light led 1 channel relay module works with official arduino boards. Basically, a relay is an electromagnetic switch.
How to interface relay module with arduino?
This module should be powered with 5v, which is appropriate to use with an arduino. Many relays use an electromagnet to mechanically operate a switch. This module should be powered with 5v, which is appropriate to use with an arduino. How does the circuit works.