CIRCUIT DIAGRAM OF RELAY MODULE

Feb 08, 2017Relay Module. A relay is basically a switch which is operated by an electromagnet. The electromagnet requires a small voltage to get activated which we will give from the Arduino and once it is activated, it will pull the contact to make the high voltage circuit. The relay module we are going to use is the SRD-05VDC-SL-C.
4-Channel Relay Driver Circuit and PCB Design
Sep 23, 2019Relays are frequently used in our electronics applications specially when we need to drive high loads from microcontroller circuits. So in this DIY project, we make a 4-Channel Relay Driver Circuit to be used in relay based applications. In-here we have designed an isolated PCB for 4 relays to operate 4 AC appliances at a time. We have put a three pin screw terminal blocks (NC, Nuteral, NO
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