Projets:Perso:2013:AutomaticCatFeeder
From Electrolab
| Automatic cat feeder with scale | |
|---|---|
| Auteur | Pilou |
| Date de proposition | 15/04/2013 |
| Tags du projet | arduino; |
| Lieu d'utilisation final | @Home |
| Utilisateur final | Crazy cat lady |
| Type de projet
Projet personnel de Pilou | |
|
This automatic cat feeder have to precisely weigh the food (1 gram precision).
Brainstorming:
- a turning cylinder with a trap for filing and a hole for emptying.
- on a side just a hole
- on the other side the filing trap
- a bowl fixed to a scale with a servomotor receive the food.
- when the desired weight is reached, the bowl is poured to a dish.
- Battery and wall-plug powered.(In case of power breakdown)
- Detect when the food level is low in the cylinder (IR barrier)
Preliminary:
- find a scale who can be easily read by an arduino
- find the size of the hole in the cylinder
Electronic/Hardware/Software:
- Arduino with SDcard/RTC
- Serial to bluetooth module
Power:
- USB battery charger connected to a 5V wall-plug.
- Provide 5V even if the power is down.
Ideas:
- http://andres-leon.blogspot.fr/2009/04/my-first-arduino-project-diy-automatic.html
- http://hackedgadgets.com/2009/12/01/internet-enabled-cat-feeder/
Progress
23/05/2013
Extraction of a Strain gauge from an electronic scales (about 8€ on ebay). The scale is build for a maximum of 1kg, after 1kg the voltage continue to raise
TODO
- Add gain to the strain gauge to have 5V when 1kg is reached.
- Prototyping of the tube feeder.
- Find a transparent tube (for prototype grey pvc tube)
Feel free to correct my english!
