What is ds18b20-remote-sensor?

This is a simple program to periodically read temperatures from 1-Wire sensors and send them to a specified endpoint. Easy to run as a systemd service. Tested on Raspberry Pi Zero.

Request content

This program send an HTTP POST request with JSON containing multiple readings. Here is an example:

[
  {
    "hw_id": "sensorId1",
    "resolution": 12,
    "temperature": 100
  },{
    "hw_id": "sensorId2",
    "resolution": 10,
    "temperature": 23
  },
]

• hw_id - 1-Wire sensor id
• resolution - sensor resolution in bits
• temperature - temperature in Celsius

rsConfig.yaml - example

endpoint: https://localhost/api/storeTemperature
token: AUTH-TOKEN
interval: 8000

• endpoint - POST request API URL
• token - Bearer token sent in Authorization header
• interval - time between reading all temperatures in milliseconds

How to build?

You need Go to compile this project. Install Go before proceeding.

Step 1 - Get all dependencies

go get

Step 2 - Compile

GOOS=linux GOARCH=arm go build

Adjust GOOS and GOARCH if you are cross-compiling (like me) or simply run

go build

on your machine with sensors

Step 3 - Run

./ds18b20-remote-sensor --help

I suggest running it as a systemd service with rsConfig.yaml to prevent leaking secrets.