3Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board
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Description:
Trigger mode:High level
5V relay module
Can be used for microcontroller development board module or home appliance control
5V 12V TTL control signal
Can control DC or AC signal, also 220V AC load
Normally open / closed contact
Power indicator
Controlled lights bright when pull and not shine when disconnect
Increase the transistor drive relay coils, control pins high impedance
Control pins have pull down circuit to prevent malfunction of relay vacant
Package included:
3 x 5V 1 channel relay module
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