TempMonitor

Simple phoenix backend to accept incoming temperature readings from an ESP8266 with a DHT22 temperature sensor in my basement chest freezer. Sends SMS notifications if no readings within a 5 minute span or if the average temperature over 10 minutes rises above 10 degrees fahrenheit.

Uses Context Charts to generate graphs server side and displays in a Phoenix LiveView.

Setup

• Install dependencies with mix deps.get
• Create and migrate your database with mix ecto.setup
• Start Phoenix endpoint with mix phx.server or inside IEx with iex -S mix phx.server

Docker

• mix docker.build
• mix docker.push

K8S

• Kubernetes deployment available in priv/k8s/service.yaml
• kubectl create secret generic temp-monitor-secrets --from-literal="secret-key-base=SECRET_KEY_BASE"
• kubectl create secret generic twilio --from-literal="account-sid=YOUR_ACCOUNT_SID" --from-literal="auth-token=YOUR_ACCOUNT_TOKEN"

Now you can visit localhost:4000 from your browser.