Single Relay Module Circuit Diagram. Relays are frequently used in our electronics applications specially when we need to drive high loads from microcontroller circuits. For multiple channel like 2 or more make copies of the same circuit in a single pcb.
A relay can be used to control high voltage electronic devices such as motors and as well as low voltage electronic devices such as a light. So in this diy project we make a 4 channel relay driver circuit to be used in relay based applications. Here to turn on the relay with arduino we just need to make that arduino pin high a0 in our case where relay module is connected.
Here to turn on the relay with arduino we just need to make that arduino pin high a0 in our case where relay module is connected.
Electromechanical relays may be connected together to perform logic and control functions acting as logic elements much like digital gates and or etc. Get a relay module. In the circuit diagram the pin jack j1 refers to the power inputs and logic controls of the module whereas the pin jack j2 refers to the 3 pin screw terminal outputs from the relay. The following are the inputs required for functioning of module.
