KY-019 5V 1 Channel Relay Module Board for Arduino

SKU: 181065

0.42 0.38 Piece 0.38 USD

¥ 3.00

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Features:

  • The new 5V Relay Module

  • Can be used as microcontroller development board module can be used as home appliance control

  • 3,5 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