4 Channel Low Level Relay Module without light coupling 5V & without Optocoupler For PIC AVR DSP AR Arduino Raspberry Pi

 Description

1.   High-level trigger refers to the signal voltage between input and trigger, can be understood as a signal input with VCCcathode short-circuit triggered a way

2.   Low-level trigger refers to the signal voltage between the input terminal and Earth OV trigger, can be understood as the signal input terminal and the GND negative electrode short circuit triggered away 1-channel relay module connection

Feature

Package Contents

  • 4 Channel Low Level Relay Module without light coupling 5V without Optocoupler

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