Host controller for an RFID logging system. Log key-ins, collect logs on local device and upload to a remote server, and manage user IDs on the same remote server.
Intended to be run on a raspberry pi with arduinos connected via usb.
The only installation required is to edit a user's crontab to schedule daily log uploads. This can be done manually or by running make install from the project root.
This make target simply runs tool/sys/cron_setup.sh.
Alternatively, this can be skipped and log files can be manually uploaded or ignored.
Host should be a linux machine. Program should be POSIX-compliant everywhere, but I make no guarantees.
The serial ports are configued by a script assuming they take the name /dev/ttyACMx like usb-connected arduinos.
If another, more attractive setup should become apparent, this interface should be easy to edit.
Build and run by calling make from project root.
Holds users.csv which pairs usernames to 7-byte UIDs.
Also, contains a blank file new when a new user file is uploaded to remote. Once the file is downloaded, new is deleted.
Contains a log .csv which is updated on every key-in.
This log is parsed and uploaded as a report on each log update. The scripts in tool/google/ and tool/remote/ are set up to control the uploads to a configurable Google Drive. Configuration details are in tool/google/.
reader.inois programmed onto the arduinos.many_readers.inowas an attempt to set up an i2c bus to have many readers on a single arduino, but the reader-per-port approach is preferable for asynchronous use.
main.csets up states and signal handlers. Callsopen_com(ports)which spawns threads to handle incoming data asynchronously.portio.chandles the ports, for example setting them up, reading, error handling, and closing.logger.chandles logging, including access of user file to pair users and UIDs.