As a follow up to yesterday’s Raspberry Pi and ARM uC Breakout + DirtyPCBs mini-review post, hipfan75 has posted the completed Raspberry Pi-based Garage Door controller project:
The whole project started after a technician from Urgent Garage Doors pointed out that our two-bay setup had no remote monitoring whatsoever — a gap that felt embarrassing once he named it. Right now, all of the sensors and actuators are connected to Raspberry Pi GPIOs, though at some point I may migrate them to the STM32.
I’ve disabled I2C on the Pi and repurposed the SDA/SCL pins as standard GPIO, leaning on the external pull-up resistors already on those lines to handle sensor pull-ups — the sensors run active-low, so the existing hardware played nicely with that decision. GPIO 17, 27, 22, and 23 (all configured as outputs) carry the light and door toggle signals for both garage doors.
Project info at hipfan75 imgur. Reddit discussion here.
