1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi
1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi
1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi
1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi
1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi

    1 2 4 8 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board For Raspberry Pi

    $8.99
      1 Channel:
      The new 5V Relay Module
      Can be used as microcontroller development board module can be used as home appliance control
      5 V-12V to TTL control signal
      The control signal DC or AC, 220V AC load can be controlled.
      There is a normally open and one normally closed contact
      A power indicator light
      A control indicator, pull off, disconnect does not shine
      Transistor drive to increase the relay coil control pins high impedance.
      The control pin has a pull-down circuit to prevent malfunction relay vacant

      2 Channel: 
      The new 5V Relay ModuleCan be used as microcontroller development board module can be used as home appliance control5 V-12V to TTL control signalThe control signal DC or AC, 220V AC load can be controlled.There is a normally open and one normally closed contactA power indicator lightA control indicator, pull off, disconnect does not shineTransistor drive to increase the relay coil control pins high impedance.The control pin has a pull-down circuit to prevent malfunction relay vacant
      4 Channel:
      The new 5V Relay ModuleCan be used as microcontroller development board module can be used as home appliance control5 V-12V to TTL control signalThe control signal DC or AC, 220V AC load can be controlled.There is a normally open and one normally closed contactA power indicator lightA control indicator, pull off, disconnect does not shineTransistor drive to increase the relay coil control pins high impedance.The control pin has a pull-down circuit to prevent malfunction relay vacant.
      8 Channel:
      The new 5V Relay ModuleCan be used as microcontroller development board module can be used as home appliance control5 V-12V to TTL control signalThe control signal DC or AC, 220V AC load can be controlled.There is a normally open and one normally closed contactA power indicator lightA control indicator, pull off, disconnect does not shineTransistor drive to increase the relay coil control pins high impedance.The control pin has a pull-down circuit to prevent malfunction relay vacant.

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