Cold bedroom notifier

maxzuraw — Sun, 02 Jan 2022 16:03:35 +0000

Overview

Simple temperature monitoring station, build out of spring boot and react native.

100 feet view:

Submission Category:

Choose Your Own Adventure

Link to Code

backend-server: https://github.com/maxzuraw/cbn-server-atlas-hackaton.git

mobile-app: https://github.com/maxzuraw/cbn-mobile-atlas-hackaton.git

Additional Resources / Info

Easiest way to test:

Starting backend

clone backend-server repo
run ./startservice.sh script
open browser: http://localhost:8080
login with admin:admin
add new sensor in "Sensors" section as follows:

Starting mobile client

Open: https://expo.dev/@l0cke/cbn-mobile
Install app inside Expo Go wrapper
Open "Settings" tab:

Add settings with "+" button, like:

Select "Connect" to server:

From command line on laptop, where sever is running send some "simulated" temperatures with curl:

curl --location --request POST 'http://localhost:8080/api/temperature' \ --header 'Authorization: Basic c2Vuc29yOnNlbnNvcg==' \ --header 'Content-Type: application/json' \ --header 'Cookie: JSESSIONID=6FA8E64A552CDB55F455652A8C4BEEA3' \ --data-raw '{ "sensor":"bedroom", "value": 20.44 }'

You should see on "Temperature" tab incoming message, something like this:

Hope you will like this small temperature monitoring station.

Additionally in server repo, there is a folder esp8266 where are some samples of arduino code to apply to your arduino ESP8266 board connected to DallasTemperature sensor, which can be used to send real measurements to you server. It's currently used also at my home since 1 week - new kid was fully downloaded on 18.12, and I had to write some small app to monitor temperature in her bedroom, which will eventually alarm, when kid's bedroom is getting too cold or overheated (that's why it's called "cold bedroom notifier"). And that's the use case which was important to me. I bet you can find couple of other use cases as well.

Best wishes to All of You in the New Year!
Max

DEV Community: maxzuraw