1-way SONGLE relay module SRD-5V-SL-C NPN Relay module wiring diagram (NPN) HL - () RD-SIP - (N) V
Note: NPN wiring method Input terminal:+COM are common points, choose any one of them to connect to a positive voltage. 1-N connected to negative voltage control. N represents N paths. Output terminal: A represents normally open, B represents normally closed, C represents common point
NPN co positive and co positive Low level
Input end:
COM: Public point, connected to the positive pole of the DC power supply
1-16 channels (with the same number of other channels) are connected to the negative control interface (in phase with the voltage of the relay coil)
The red light is on, and the corresponding relay is engaged.
Output end:
Clearly label ABC and C on the output circuit board to indicate common point A and normally open table B
Normally closed, the number represents the operation of each relay.
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