DoorPI HAT - RindusIoTJam/DoorPI GitHub Wiki
This is a little hardware interface that connects the RPi to a door entry system.
Existing HATs
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DoorPI HAT for FERMAX Loft Basic Telephone
Rev. 1.0 and 1.1smd of DoorPI HAT:
First prototype: RING detection working, door OPEN not; Second prototype and PCB: RING detection and door OPEN working.
Rev. 1.1 of DoorPI HAT:
RING detection and door OPEN working; OPEN fires a RING to be suppressed by software. Circuit rev.1.1 See: https://easyeda.com/manfred.ackermann/doorpi-hat-for-fermax
One copper route got corrected on the SMD PCB but after testing the uncorrected PCB it showed that the circuit was working as well.
DoorPI HAT f. FERMAX v1.1 SMD PCB w/ JST-XH through hole connector
DoorPI HAT f. FERMAX v1.1 SMD PCB w/ MC connector