Make a Raspberry Pi powered cat feeder. via drstrangelove
Back in February 2013 I started teaching my Raspberry Pi 101 class. After the first class I think I had Pi on the brain, I was scheduled for a quick weekend trip out of town with my girlfriend, and she was due to leave her two cats behind. She said that she was going to leave a large bowl of cat food out, and with that I suggested that I build an automated cat feeder for them.
Ya know, so the cats don’t over eat, and maybe have a mixture of food, and it’s super cool! (Did I mention that it’s cool!?) So… five days before leaving town, I purchased the food hopper, and very quickly ran out of time to complete the project before leaving on vacation. So plan B it was, a large bowl of cat food, and water.
However, I did stick with my original plan, and saw the build to completion well before my next trip out of town. In this blog post, I’ll list out the step-by-step (for the most part) process to building your very own Wifi Enabled Raspberry Pi Powered Cat/Human Feeder.
I’ve published a Google spreadsheet here, that lists the specific parts and components that you need to acquire for this project. It’s really simple, and can be easily assymbled in about 4-6 hours once you have all the parts.
• Soldering Iron
• 1/2″ drill bit
• 1″ drill bit (for push button switch, optional)
• Hot glue gun + glue
• Wire cutter
Prerequisites for the build:
• Have all the parts on-hand, check out the Google spread sheet.
• Have a working and installed OS on the Pi. Adafruit Occidentalis or Raspbian work well.
• Have the Wifi Adaptor setup and ready to go: Occidentalis or Raspbian
• Play around with the GPIO in and out on the Pi by downloading the code from my GitHub Repo
• Install the Python GPIO.PWM module: RPIO install docs
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