Description
Relay module 1 channel 5V. Relay on this module can be controlled with 5V from an Arduino or other microcontroller. By means of the relays it is possible to switch from alternating current (max. 230V) and direct current (max. 30V) up to 10A. With handy screw terminals for connecting the device to be switched.
The relay module 1 channel 5V has a normally open and a normally closed contact. The module is equipped with 2 LEDs to indicate statuses.
Electronics4Fun (verified owner) –
Versatile relay module that you can easily connect to your Arduino output and you have a potential-free changeover switch at your disposal, so completely electrically separated from your Arduino.
On the print of this relay module is a transistor that switches the relay, so your Arduino output is hardly loaded, so that you can also control multiple of these relay modules on 1 digital output without any problems. Switches up to 250 volts / 10A AC voltage or up to 30 volts / 10A DC voltage. If you want to switch 220 volts double-pole, take two of these modules and connect them to the same digital output of your Arduino. You now have two changeover relay contacts at your disposal. You can also make a cross switch with 2 changeover contacts, then you can change the rotation direction of a DC motor, for example. Also useful are the LEDs on this module that indicate when there is voltage on the module or that the relay is switched on. Tip for those who power the arduino and this module with a battery: A relay quickly takes 30-50 mA or more, so your battery will not last long if the relay switches on a lot, also the leds quickly take 2-20 mA current. Keep this in mind.