44+ Relay Module Schematic Diagram PNG. So we can see that the 5 volts from our microcontroller how to use the arduino relay module with the high voltage devices. First let's take a look at the circuit diagram.
Need help with a relay : arduino from modtronix.com
Relay specification 5 a @ 230 vac. It can be used to control various appliances and equipment with large current. This module should be powered with 5v, which is assemble all the parts as shown in the schematic diagram.
This relay module has two channels (those blue cubes).
Power source at input side; Another version of the schematic is to add an optocoupler, effectively isolating the microcontroller from the high current that may come from the relay circuit here is a wiring diagram you can use: This module should be powered with 5v, which is assemble all the parts as shown in the schematic diagram. A relay is an electrically operated switch.
