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====== Doorbot ======

The doorbot is responsible for scanning key fobs and unlocking the door for members. The software is written in C++ and runs on an ESP32. It expects to use the Wiegand protocol for reading fobs. It communicates with a server written in Python.

Implementation of the system is split up into a few repositories:

  * https://github.com/bodgery/doorbot-server - The server for the API and management frontend
  * https://github.com/bodgery/esp32_doorbot - ESP32 firmware, plus a hat for making the connections

===== Building a Doorbot =====

To deploy a doorbot, you will need the following major materials:

  * RFID reader for 125KHz fobs that outputs the Wiegand protocol (https://www.amazon.com/Waterproof-Wiegand-125KHz-Control-Proximity/dp/B01LWRQMN5)
  * Electronic strike running at 12V or 24V (https://www.amazon.com/UHPPOTE-Standard-Fail-Secure-Fail-Safe-Adjustable/dp/B00V49S2NI)
  * A power supply matching your 12V or 24V strike
  * An ESP32 [TODO: exact model of dev board]
  * The doorbot hat (see below)
  * An enclosure (3d printed)

[[Howto connect the doorbot|doorbot_connection_howto]]

Building the hat is covered elsewhere (TODO make that page)

  * TODO: RFID reader connections
  * TODO: Power connection
  * TODO: Strike connection
  * TODO: Configure firmware
  * TODO: Uploading firmware

===== Serial Port Debugging =====

The ESP32 has a USB port, and much useful information is given about the cache status, key reading, etc. There are also a few commands you can send:

  * check <ID> - Check if a keyfob is valid
  * newcache - Rebuild the cache
  * open - Open the door
  * stats - Dump info about this doorbot