I need to build a cat water fountain with motion sensor actived.
like this (with motion sensor)
http://www.ebay.co.uk/itm/Cat-Mate-Pet-Water-Fountain-Drinking-Bowl-Cats-Dogs-/280708845636?pt=UK_Pet_Supplies_Cats&hash=item415b8d1044
I think about this pump
http://www.ebay.co.uk/itm/1200L-H-Powerhead-Aquarium-Submersible-Water-Pump-Fish-Tank-JP-024-/400311569733?pt=UK_Pet_Supplies_Fish&hash=item5d346dcd45
I have this sensor
http://www.ebay.co.uk/itm/Ultrasonic-Range-finder-distance-sensor-HC-SR04-Arduino-/130811300412?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item1e74f60a3c
This relay 5v
http://www.sucitech.com.br/loja/index.asp?secao=75&categoria=34&subcategoria=0&id=1114
I dont know about the wires position on protoboard and the code in arduino.
The idea is:
If my cat is on range of sensor (like 80cm) the activate the water pump in a fountain.