Small application turning Raspberry Pi with 1-wire temperature sensors into temperature logger and (optio) thermostat with other useful functions.
Logging is possible to Influx DB (just set in config) and through http request (POST and GET supported).
Documentation will be updated :)
To enable ssh server before first boot (default is disabled) add file ssh in sd-card filesystem:
touch ssh
Too turn on 1-wire add following line at the end of config.txt file:
# 1-wire
dtoverlay=w1-gpio
Next line will set selected gpio pin (here 21) in ouput mode and default LOW state
# gpio output, def ON (lo) SSR(+) connected to 5V bus, SSR(-) to gpio21
gpio=21=op,dl
Download binary or build from source
TODO
Make sure binary is executable:
chmod +x owkit
It will be more convenient to put binary in /usr/bin folder:
sudo cp owkit /usr/bin/
Now you can just run owkit from anywhere in filesystem.
Prepare config file and move it to location:
./config.jsonif you use owkit locally/etc/owkit.jsonotherwise
Application will look for config file in order as above. Is no config will be found it will fail.
To run as a service and log to file you can use command:
setsid owkit > /var/owkit.log 2>&1 < /dev/null &
If you want to run owkit on startup you can add this line to the /etc/rc.local file.
Some useful commands and info
/sys/class/gpio
First write gpio number to export, then read or set using gpioXX/value
To build binary for raspbian:
GOOS=linux GOARCH=arm GOARM=5 go build
First release, working