Demonstration description

STEVAL-IHT004V1

2/5

Doc ID 16016 Rev 1

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Demonstration description

This demonstration is a development tool that allows users to develop their own application.

Through hole technology is used for easy modification of the board for the desired function.

Three applications have been developed and are ready to use with this demonstration board

as the sensors are already implemented on the board (or have to be connected to the

header for the humidity sensor):

1.

Hand dryer (program 1)

–

Controlled load: heating resistor and fan in parallel

–

Sensor: infrared sensor using IR diode emitter (D5) and photo-transistor receiver

(Q4)

2.

Bathroom fan (program 2)

–

Controlled load: low power fan

–

Sensor: humidity sensor (to be connected to P3 header)

3.

Multi-entrance room light control (program 3)

–

Controlled load: light bulb, CFL lamp

–

Sensor: push button

As previously stated, this board can easily be modified.

For example, here is a list of other possible applications that can be considered thanks to

little software and hardware modifications:

●

Water heater thermostat

●

Household temperature control

●

Humidity control (wood storage)

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Flood protection system (pump or valve control)

●

Motion detector (outside lightning)

●

The added advantages of this board are:

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Spark free operation

●

No EMI or acoustic noise