12V 16 Channel Relay Module with Light Coupling
$4.82
♦ Specifications
Number of channels : 16
Operating voltage : 12V
Max. current : 20mA
Trigger voltage : 12V
Switching voltage : 250V at 10A
Size: 179*90*19mm
Weight: 230g
Equipped with high-current relay
It can control both AC and DC appliances such as Motors, lights, fans, etc.
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Description
This is a 12V 16-Channel Relay interface board, can control various appliances and other equipments with large current.
It can be controlled directly by Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Meaning of High level and Low-level
High-level trigger refers to using the anode voltage at the VCC connection way of a trigger and triggers the end when the trigger side has the positive voltage or to trigger voltage when the relay is off.
Low-level trigger refers to using the negative voltage at the GND connection way of a trigger and triggers the end when the trigger side has 0 v low voltage or voltage to can trigger, the relay is off.
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