A thermostate to be used with our Raspberry pi 2B (or 3B) at home.
You would need a DB created to run app. Nowadays we don't use any DB change control as liquibase, so just reset the one that is on /assets or create one with the SQLs in each repository.
It reads, in prod, the temperature from a file which is established in thermostate.roomTemp.file in application.yaml
To be executed run, in ./scripts:
./run-dev.sh
Or to run in prod environment:
./run-prod
To debug server, please add --debug-jvm to prompt and then attach intellij to process
./run-dev.sh --debug-jvm
Flutter frontend is on the way
The GPIO configuration is:
| BCM | wPi | Name | Mode | V | Phy | Phy | V | Mode | Name | wPi | BCM |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.3v | 1 | 2 | 5v | ||||||||
| 2 | 8 | SDA.1 | IN | 1 | 3 | 4 | 5V | ||||
| 3 | 9 | SCL.1 | IN | 1 | 5 | 6 | 0v | ||||
| 4 | 7 | GPIO. 7 | IN | 1 | 7 | 8 | 1 | ALT0 | TxD | 15 | 14 |
| 0v | 9 | 10 | 1 | ALT0 | RxD | 16 | 15 | ||||
| 17 | 0 | GPIO. 0 | IN | 0 | 11 | 12 | 0 | IN | GPIO. 1 | 1 | 18 |
| 27 | 2 | GPIO. 2 | IN | 0 | 13 | 14 | 0v | ||||
| 22 | 3 | GPIO. 3 | IN | 0 | 15 | 16 | 0 | IN | GPIO. 4 | 4 | 23 |
| 3.3v | 17 | 18 | 0 | IN | GPIO. 5 | 5 | 24 | ||||
| 10 | 12 | MOSI | ALT0 | 0 | 19 | 20 | 0v | ||||
| 9 | 13 | MISO | ALT0 | 0 | 21 | 22 | 1 | IN | GPIO. 6 | 6 | 25 |
| 11 | 14 | SCLK | ALT0 | 0 | 23 | 24 | 0 | OUT | CE0 | 10 | 8 |
| 0v | 25 | 26 | 1 | OUT | CE1 | 11 | 7 | ||||
| 0 | 30 | SDA.0 | IN | 1 | 27 | 28 | 1 | IN | SCL.0 | 31 | 1 |
| 5 | 21 | GPIO.21 | IN | 1 | 29 | 30 | 0v | ||||
| 6 | 22 | GPIO.22 | IN | 1 | 31 | 32 | 0 | IN | GPIO.26 | 26 | 12 |
| 13 | 23 | GPIO.23 | IN | 0 | 33 | 34 | 0v | ||||
| 19 | 24 | GPIO.24 | OUT | 1 | 35 | 36 | 1 | IN | GPIO.27 | 27 | 16 |
| 26 | 25 | GPIO.25 | OUT | 0 | 37 | 38 | 0 | IN | GPIO.28 | 28 | 20 |
| 0v | 39 | 40 | 1 | OUT | GPIO.29 | 29 | 21 |
Being the screen in pins 1-20 Relay: 5V (2, breaking the protective plastic of that pin), 0V (39) and Vin (24, 25) at this point it's set to On state by putting 25 to 0. Sensor: GPIOS 28-29 and 34
I use a 5' resistive screen to manage the rasp, a DS18S20 sensor to get ambiental temp and a relee to switch on an off the calefactor. The rasp's SO is raspbian.
It is supposed to let a file at /sys/bus/w1/devices/ as:
/sys/bus/w1/devices/28-0415a4ddf9ff/w1_slave
Which should contain a number which is the temp in milis
More info at: https://en.kompf.de/weather/pionewiremini.html
To switch on / of the relee should be enough with:
Runtime.getRuntime().exec("gpio write 25 0");
to switch it on or:
Runtime.getRuntime().exec("gpio write 25 1");
to switch it off.