In preparation for the pi class I wanted to get a motor running and found this excellent tutorial: http://www.raspberrypi-spy.co.uk/2012/07/stepper-motor-control-in-python/ It works great once I realized the motor has a 64:1… Read more »
Simple concept, put an RFID chip on your cat and a reader by the door. Tweet whenever the cat uses the door.The reader is a APSX 15.56MHZ RW-210 reader. The RFID is… Read more »
To get the slots and the screws just right I used a Sherline tabletop CNC milling machine to cut the screw slots and openings. Only a little rework and it… Read more »