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MULTIPLE DS18B20 SENSORS ON A ONE-WIRE BUS (multiple-ds18b20-arduino)

This project features multiple ds18b20 temperature sensors, all on a one wire bus.

WIZnet

Published September 29, 2022 · © GNU General Public License, version 3 or later (GPL3+)

Original author: JesseDavids · South AfricaOriginal source (new tab)

MULTIPLE DS18B20 SENSORS ON A ONE-WIRE BUS (multiple-ds18b20-arduino)

Components

Hardware components
W5500

WIZnet - W5500

x 1

Adafruit Waterproof DS18B20 Digital temperature sensor

Adafruit - Adafruit Waterproof DS18B20 Digital temperature sensor

x 1

WIZnet parts

Project description

created by Jesse Davids.

This project features multiple ds18b20 temperature sensors, all on a one wire bus. All sensors are identified by their unique serial number, accompanied by their sensor value. This data is sent to a web server, posted as JSON on a webpage. You can retrieve the data sent to the webpage into your network management software, graph it out and boom. Done.

What you need to consider

  • This repo supports only the DS18B20, other sensors have not yet been tested. You can feel free to do so.
  • You will need a pull-up resistor, i used a 5K ohm resistor.
  • Alter code to use up to 18 sensors.

 

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