How to make relay module || by es tech knowledge

Hi, This video is to show you how you can make a relay module by using a 12v relay. This will cost less than 50Rs. But this way you have to put 9-12v to activate the relay. ⚙️All you needs are - 1. 12v relay 2. BC547/BC548 transistor 3. PCB 4. Connectors ◾ Download the circuit diagram - https://drive.google.com/file/d/1nTOsMlh7oLlQIkjHsw1nBe0Yrs_mGnBN/view?usp=drivesdk 🎶 Sound credit goes to - 1. Listen to KODOMOi - Sunny by KODOMOi #np on #SoundCloud https://soundcloud.com/kodomoimusic/kodomoi-sunny #arduino #relaymodule #estechknoledge