One-Wire

Connect one-wire based temperature sensors and switches.

Categories: sensor, diy

Technologies: one-wire

One-Wire#

One-Wire#

This integration plugin allows to integrate one-wire devices like temperature sensors and switches.

Supported Things#

  • OWFS Interface

* Gateway device

* Initializes OWFS

  • Temperature Sensors

* Family Code 10

* DS18S20

* DS1820

* DS18S20-PAR

* DS1920

* Family Code 22

* DS1822

* DS1822-PAR

* Family Code 28

* DS18B20

* DS18B20-PAR

* DS18B20X

* Family Code 3B

* DS1825

  • Temperature and Humidity Sensors

* Familiy Code 26

*DS2834

  • Switches

* Family Code 05

* Single channel switch

* DS2405

* Family Code 12

* Dual channel switch

* DS2406

* DS2407

* Family Code 3A

* Dual channel switch

* DS2413

* Family Code 29

* Eight channel switch

* DS2408

Usage#

OWFS Interface#

First step is to setup the “One wire interface”. During the device setup it is required to enter the OWFS init arguments. Default arguments are “–i2c=ALL:ALL”, means OWFS is about to scan for one-wire bus masters on all I2C interfaces.

You can simulate one-wire device with following init argument: “–fake=10,22,28,05”

More about init arguments here: https://www.owfs.org

W1 Kernel Driver#

Install the kernel driver w1. Raspberry Pi users can use rasp-config to enable ‘one wire’ which enables W1. There are not further steps necessary, temperature sensors will be discovered if the driver has been loaded successfully.

Requirements#

  • The package “nymea-plugin-onewire” must be installed.

More#

This plug-in uses “OWFS” the one-wire file system: https://owfs.org