Single Channel 5V Relay Module - Made in India Soldering Iron It has 12 output pins

It has 12 output pins ranging from Q1 to Q14 excluding Q2 and Q3

control robots or drones

The diameter of 4 large positioning holes:  4mm

1uA in standby@ 2

in the data acquisition system of a vehicle

Single Channel 5V Relay Module - Made in India Soldering Iron It has 12 output pinsRelays are most commonly used switching devices used in electronics. It can be used to switch high current loads easily unlike transistors which are limited by the maximum current that can flow through them and also cant switch AC loads. This 5V 1A Relay Module can switch both AC and DC loads. It is an Electromagnetic switch, when the coil inside is energized with a small current, it can switch ON or OFF the high current circuit. It has PCB screw