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Step 2The circuit
Connect the parts according to the circuit diagram below.
The PIR command wire goes to Digital pin 5 on the arduino and its positive wire goes to 3v pin and ground to ground.
Servo control wire is on pin10.
Pump is on pin 8 via the transistor 9which is protected by the diode).
The battery is a NiMH 12v connected to Vin pin via an on/off switch.
The battery, breadboard and arduino are housed inside a watertight sandwich box.
Mounted on top is the PIR which is inside a length of plastic tube to restrict its field of vision to directly ahead.
The servo is mounted on top of the water reservoir- in this case a plastic tub from the kitchen supplies department of the local supermarket. The pump is fitted near the bottom of the tub with its outlet connected to a flexible pipe from an aquarium supply shop and (rather messily) attached to the sevo arm with a lump of blu-tac.
The PIR command wire goes to Digital pin 5 on the arduino and its positive wire goes to 3v pin and ground to ground.
Servo control wire is on pin10.
Pump is on pin 8 via the transistor 9which is protected by the diode).
The battery is a NiMH 12v connected to Vin pin via an on/off switch.
The battery, breadboard and arduino are housed inside a watertight sandwich box.
Mounted on top is the PIR which is inside a length of plastic tube to restrict its field of vision to directly ahead.
The servo is mounted on top of the water reservoir- in this case a plastic tub from the kitchen supplies department of the local supermarket. The pump is fitted near the bottom of the tub with its outlet connected to a flexible pipe from an aquarium supply shop and (rather messily) attached to the sevo arm with a lump of blu-tac.
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Apr 22, 2011. 5:25 PMlltiago
says:
hey guy....awesome job....but could you take a better picture of the circuit..? i can´t see it exactly...thankss so much
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