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Sometimes you want your arduino to control ac powered devices like lamps, fans or other household devices. But because the arduino operates at 5 volts..
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Sometimes you want your arduino to control ac powered devices like lamps, fans or other household devices. But because the arduino operates at 5 volts, it cannot directly control these higher voltage devices.
That’s where the relay module comes in. You can use a relay module to control the ac mains and arduino to control the relay.
The relay module is designed for switching only a single high powered device from your arduino. It has a relay rated up to 10a max switching current per channel and 250vac or 30vdc max switching voltage.The single channel relay module is a convenient board which can be used to control high voltage, high current load such as motor, solenoid valves, lamps and ac load. It is designed to interface with any 5v microcontroller such as arduino, pic and etc. It also comes with an led to indicate the status of relay.
These relay interface boards can be controlled directly by a wide range of microcontrollers, including Arduino.
They have a standard interface that can be controlled directly by a microcontroller.
Specifications:
15-20mA Driver Current
High-current relay : DC30V 10A AC250V 10A