jernst / rasptimer

Use Raspberry Pi as a timer for GPIO hardware, configurable over the web

rasptimer

Use a Raspberry Pi as a schedulable timer for GPIO hardware, configurable over the web. Uses WiringPi. While I use it on the original Raspberry Pi, I can't think of a reason it shouldn't work on Raspberry Pi 2, 3, 4 or Zero.

This is the software for the pool timer project described at http://upon2020.com/blog/2012/12/my-raspberry-pi-pool-timer-why/

Rasptimer should run on any Linux-based OS that runs on the Raspberry Pi, but you will have to manually put all the files in the right place, setup your web server, install packages, including creating the configuration file from the template.

If you run UBOS, it's much simpler.

''Step 1.'' Write UBOS to an SD Card suitable for your Raspberry Pi, as described here.

''Step 2.'' Enable the hl-experimental repository on UBOS. To do so, as root, uncomment the two lines in /etc/pacman.d/repositories.d/hl-experimental, and then run sudo ubos-admin update.

''Step 3.'' Run:

> sudo ubos-admin createsite --ask

Then answer the questions. Each pin that you give a name will show up in the web interface; unnamed pins are skipped. Here is an example transcript:

> sudo ubos-admin createsite --ask
Hostname (or * for any): *
Site admin user id (e.g. admin): admin
Site admin user name (e.g. John Doe): Administrator
Site admin user password (e.g. s3cr3t):
Site admin user e-mail (e.g. [email protected]): [email protected]
...
App to run: rasptimer
App rasptimer suggests context path /rasptimer
Enter context path:
Any accessories for rasptimer? Enter list:
App rasptimer suports a value for title: My pool on-line (duh!)
App rasptimer suports a value for pin1: Main pump
App rasptimer suports a value for pin2: Auxiliary pump

The previous command will have downloaded all the code, and the libraries, created the right Apache config files, and so forth, and even restarted your web server. Rasptimer is ready to use.

Questions? Post to the UBOS forum.

rasptimer's Issues

Logrotate error

Mar 07 00:00:13 pool logrotate[10072]: error: logrotate.d-rasptimer:8 unknown user 'www-data'

Expired http user cannot use crontab

Before we can edit the crontab (now: used to be different!), the http user needs to be set to not have expired, using chage.

Double-slash after editing

E.g. http://pool.aviatis.com//

checksum seems to be wrong

Don't always use UTC, it's confusing.

Should automatically start atd.service

logrotate seems to not work any more

Don't always use UTC, iot'

Restore problem

Upon reboot during update:

 use UBOS::Commands::UpdateStage2; UBOS::Commands::UpdateStage2::finishUpdate( "/=3" );
WARN : Directory exists already /ubos/lib/ubos/appconfigpars/ab8adf8a36e4a7bbd831991ab5d351fd2aa452e1d
WARN : Directory exists already /ubos/lib/ubos/appconfigpars/ab8adf8a36e4a7bbd831991ab5d351fd2aa452e1d/rasptimer
ERROR: Cannot restore file: bucket: log toName: /var/log/rasptimer.log context: backup entry /ubos/backups/update/ab8adf8a36e4a7bbd831991ab5d351fd2aa452e1d/rasptimer/apache2

Make rasptimer depend on package at

Otherwise the "run for 1 hour" functionality does not work.