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a858b0a8a6
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a858b0a8a6 | |||
24a4105189 |
3 changed files with 29 additions and 81 deletions
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@ -10,6 +10,8 @@ insert_final_newline = true
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[*.md]
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trim_trailing_whitespace = false
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indent_style = space
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indent_size = 2
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[*.{conf,hcl,json,xml,yml}]
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indent_style = space
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13
Makefile
13
Makefile
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@ -1,8 +1,9 @@
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build:
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cd cmd/fermentord && GOARCH=arm GOARM=6 GOOS=linux go build
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GOK := gok --parent_dir ./deployments --instance fermentor
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install: build
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scp cmd/fermentord/fermentord fermentor.env.s18.joco.dk:
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ssh -t fermentor.env.s18.joco.dk sudo ./deploy.sh
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edit:
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$(GOK) edit
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.PHONY: build install
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update:
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$(GOK) update
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.PHONY: edit update
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95
README.md
95
README.md
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@ -2,90 +2,35 @@
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Control the temperature of your fermentation process.
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# Integrations
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## Integrations
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* NATS
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* Prometheus
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* Sentry
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- NATS
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- Prometheus
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- Sentry
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# Epics
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## Heater/Cooler
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| Persona | Description |
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|----------|--------------------------------------------------------------------------------|
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| Brewer | The person responsible for the wort and the fermentation process |
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| Operator | The person responsible for the fermentation tank and the system controlling it |
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*As a brewer I need to maintain the wort at a specific temperature so that my fermentation process is predictable*
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*As an operator I need an alert if the system can't maintain the temperature, so that I may correct the problem*
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## Ambient temperature
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* Ambient temperature
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* Case temperature
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* Wort temperature
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* Wort gravity
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# User stories
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## Acceptance criteria
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* Given the wort is at or above the requested temperature and the heater is running then stop the heater
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* Given the wort is above the requested temperature and the heater is not running then start the cooler
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* Given the wort is above the requested temperature
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* Given the wort is too cold and the cooler is running then stop the cooler
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* Given the wort is too cold and the cooler is not running then start the heater
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* Given the cooler is running
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* Given the cooler is running when then the heater may not start
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* Given the heater is running then the cooler may not start
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* Given the temperature is
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# Data logging
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* Ambient temperature
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* Case temperature
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* Wort temperature
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* Wort gravity
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* Data is stored in sqlite3
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* Data is scraped and stored in PostgreSQL
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* Data is removed from sqlite3 when confirmed in PostgreSQL
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# Metrics
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## Metrics
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Prometheus metrics
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* Ambient temperature
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* Chamber temperature
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* Wort temperature
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* Wort gravity
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* Heater state
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* Cooler state
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* Tank pressure
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- Ambient temperature
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- Chamber temperature
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- Wort temperature
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- Wort gravity
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- Heater state
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- Cooler state
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# Drivers
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## Build
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On the Raspberry Pi you'll need to add `dtoverlay=w1-gpio` (for regular
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connection) or `dtoverlay=w1-gpio,pullup="y"` (for parasitic connection)
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to your /boot/config.txt. The default data pin is GPIO4, but that can be
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changed from 4 to x with `dtoverlay=w1-gpio,gpiopin=x`.
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The firmware is built for [gokrazy](https://gokrazy.org). Identify the device
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for your SD-Card, then run the command below to overwrite it. Ensure that no
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partitions are mounted on the card prior to running the command.
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```bash
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echo dtoverlay=w1-gpio,gpiopin=4,pullup=0 >> /boot/config.txt
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modprobe wire
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modprobe w1-gpio
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modprobe w1-therm
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gok --parent_dir ./deployments --instance fermentor overwrite --full <device>
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```
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# Build
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## TODO
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A Raspberry Pi 1 is used, so we compile for ARMv6.
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```bash
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cd cmd/fermentord
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GOARCH=arm GOARM=6 GOOS=linux go build
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```
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- hardware: Fix the LCD display contrast by adding a 3v3/5v logic level converter
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- firmware: Add a way to control the runtime configuration
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- use nats to control the runtime parameters
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