Hello creative people
This video shows a very simple circuit and also the operation of the bc547 transistor is well shown. You can use the relay and control various devices.
items needed:
BC547
5mm LED
4v power supply
Watch video (how to make touch sensor with bc547(electronic circuit online without registration, duration hours minute second in high quality. This video was added by user Creative A 28 July 2022, don't forget to share it with your friends and acquaintances, it has been viewed on our site 4,936 once and liked it 186 people.