Re: [sudo-discuss] Door hacking

i don't understand. you just flip the pin high for a few seconds like it does in the code and it unlatches the door. i guess you probably mean the motor controller shield, which is listed on line 12 of the code: https://www.arduino.cc/en/Main/ArduinoMotorShieldR3 but we won't be using that anymore, so the latch function will be very simple, just flipping a pin to undo the latch. the complicated part will be driving the three-phase permanent-magnet motor that I just rigged up, which will be the front-door opener for the omni: http://spaz.org/~jake/pix/omnidoormotor1.png http://i.imgur.com/FUp1dvu.jpg basically i will be controlling about 6 pins to drive that motor, and monitoring 2 pins which will tell me quadrature of its position for that purpose. and another output pin will control the latch. this is a diagram of a similar motor, except it shows three hall-effect sensors and i think our motor might only have two, is that possible? I need to look. http://www.avdweb.nl/Article_files/Solarbike/Motor-controller/4-Pole-brushl… this is the chip in the motor controller that I will be using, i worked on it last night and am half-done wiring it up: http://www.intersil.com/en/products/space-and-harsh-environment/harsh-envir… there are three of those, to control two three-phase permanent-magnet motors, because each motor needs three I-bridges. Since we only need one motor to move the door, i'll just use one of the ones on the second side for the latch solenoid. here are pictures of what i was doing last night: http://spaz.org/~jake/pix/2017-01/doormotor.html all you need to do is get the RFID code that Henner wrote to compile in arduino, and i can do the rest. what do you think of that? i look forward to working with you on this, i think it will be more fun and rewarding than some of the stuff we were doing before, since we'll actually be getting the door to open and close from software. the other thing is that there's more of a deadline on this project, since we're apparently able to get in trouble for not being ADA compliant. -jake