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Table of Contents
Door Controller V2
Component Overview
- Controller: Enclosure, PCB inc ESP8266 ESP-12(E), LED, push-button
- Reader: PN532 module, laser-cut case, LED, piezo disc
- Door Hardware: electric release, magnetic door-closed sensor, optional exit button/sensor
- Software: ESP8266 firmware, Python server application
PCB
Reader
Components:
- 3mm blue LED
- 120R resistor (this is low, but an additional resistor is used on the controller PCB)
- Cat 5 or other cable with at least 7 cores
The reader enclosure is formed from three layers of 3mm black acrylic. The layers should be joined with cyanoacrylate adhesive.
Configure the PN532 module to use I2C communications.
Bend and cut the LED leads to the correct shape and length. Solder the LED and cable before gluing the module into the enclosure.
Cat 5 cable colours:
blue | GND |
green | VCC |
brown | RST |
orange | SDA |
white-green | SCL |
white-brown | LED +ve |
white-blue | Piezo |
white-orange | not used |
Note that on the G11 door and in the photos, orange=VCC and green=SDA.
The LED should be connected between white-brown and GND (blue), with a 120R series resistor. To avoid damaging the LED, use hot-melt glue to secure it in place (not cyanoacrylate).
The piezo should be connected between white-blue and VCC (green). The piezo may be secured with cyanoacrylate or hot-melt glue, but try to give the disc some freedom of movement or the sound output may be reduced.
Test the reader and controller together before securing the reader to the wall with double-sided adhesive foam tape.