Arduino Relay Wiring Diagram. The wires have various colors to avoid confusion. Wiring for 64 Relays.
In this Arduino Relay Control Circuit we have used Arduino to control the relay via a BC547 transistor. Between the dht22 vcc and data pin insert a 10k pull up resistor. 2 Relay Module Circuit Diagram.
Wire relay negative terminal to NPN transistorMOSFET collectordrain.
Tyco 5 blade relay wiring diagram all diagrams full ac antenna fuse www using relays in automotive rr9 pole ignition ford starter fog lamp duflot sel latching circuit ladder auto hvac lockout chevy horn harley arduino tutorial 5v saturn cooling fan harness chrysler gm ground. 2 Relay Module Interfacing with Arduino Wiring Diagrams. An AC bulb is used for demonstration. Connect a load of your choice to the screw terminal in series.