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--- rfid_access_system_door_lock_and_laser_cutter [2020/10/29 12:47]
Tiago
+++ rfid_access_system_door_lock_and_laser_cutter [2020/11/12 13:58] (current)
Tiago [RPi preparation]
@@ Line 1: / Line 1: @@
 ====== DIY RFID system with RPi ======
 If you're interested to know how this stared, [[rfid_access_system_door_lock_and_laser_cutter_inspiration|have a look here]]. This project was supposed to be a generic solution for giving EB members controlled access to lab resources. So far it's working for the laser cutter only, but has some potential to be extended!
@@ Line 15: / Line 14: @@
   * [[https://abra-electronics.com/sensors/sensors-id-en/high-frequency/sens-26-mfrc522-nfc-rfid-controller-breakout-board.html |MFRC522 NFC/RFID Controller Breakout Board]]
   * [[https://abra-electronics.com/robotics-embedded-electronics/raspberry-pi-en-3/displays/wave-15811-3.5inch-rpi-lcd-c-480x320-125mhz-high-speed-spi.html|3.5inch RPi LCD (C), 480x320, 125MHz High-Speed SPI]]
+  * [[http://www.datasheetcafe.com/srd-05vdc-sl-c-datasheet-pdf/|5V Relay SRD-05VDC-SL-C or similar]]
 The current solution includes a few Python scripts on a local Raspberry Pi and a simple Django application server side.
@@ Line 21: / Line 21: @@
 **Hardware**
+{{ :signal-2020-11-12-135551_002.jpeg?nolink&400 |}}
+**WIP:**
+{{ ::eblab_rfid_bb.png?nolink&400 |}}
 **Software**
@@ Line 42: / Line 48: @@
 The django app provided along with the local scripts should be deployed as a regular django app, nothing special :-) The dependencies are listed in the ''requirements_server.txt'' and can be installed via pip3. This should be deployed under HTTPS using any webserver. The URL should be set on the local scripts accordingly.
+For authenticating the RPi requests, you need to create a user token and add it to script ''eblaser_gui.py''. On the server side, do the following:
+''python3 manage.py drf_create_token eb''
+On the client side, add the generated token to ''self.headers'' CardReader attribute:
+''self.headers = {'Authorization': 'Token MYSECRETTOKENGENERATEDONTHESERVER'}''
+**API**
+For json responses, add ''format=json'' to the URL.
+Resource usage examples:
+  * /rfid/?uid=XXXXXX&resource=laser_cutter&action=LAS (starting laser usage)
+  * /rfid/?uid=XXXXXX&resource=laser_cutter&action=LAE&usage_time=120 (ending laser usage and recording cut time)
+Possible actions:
+  * LAS (laser start)
+  * LAE (laser end)
+  * LOI (logged in)
+  * LOO (logged out)
+  * NON (do nothing, used for authentication only)
+Getting users information, mostly used for the RPi screen messages:
+  * /person/XXXXXX (get person name from a given rfid)
+  * /people (get all users info)
+Getting total resource usage from a given user from their rfid:
+  * /daily_usage/XXXXXX

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