Description:

This is a 5V 1-Channel Relay module, it allows the Arduino to control high power sources (see ratings below).

• 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(NO) / closed(NC) 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