This article covers the basics of using the 1-Wire protocol with an Arduino with the help of the OneWire library. The following sections provide information about the 1-Wire protocol, interface, power, addressing devices, reading devices and finally a short glimpse into the library's history.

This tutorial will show you how to connect many DS18B20, "1-Wire" temperature sensors to your Arduino board, using only 1 digital IO pin/one cable. Software code used in this tutorial can be downloaded here:

1-Wire is a half-duplex bidirectional protocol for microcontrollers and peripherals to communicate with one another. In this guide, learn about the 1-Wire protocol, and obtain temperature readings from the DS18B20 with a Little Bird Uno R3.

Jan 31, 2014 · You can use the One-Wire protocol introduced by Dallas Semiconductor (1-Wire - Wikipedia). The drawback is that you must have a master that controls the bus but it is designed to be bidirectional.

Nov 15, 2013 · I'm looking for examples / tutorials / resources that can help me set up 1-Wire communication between two or more Arduino boards (and eventually custom ATtiny85 boards). I tried searching the web but all the information I could find used the OneWire library for communication with native One-Wire sensors.

Jan 12, 2020 · This tutorial shows how to establish a serial connection connection from an Arduino to another Arduino. Each Arduino has a tact switch and an LED. If an Arduino’s tactile switch is pressed, the LED of the other Arduino will be turned on.

Jan 31, 2025 · Written from scratch alternative for the classic Arduino OneWire library providing: (1) fixed handling of the 1-wire bus low-level activities related to its open-drain characteristic, (2) 1-wire touch support, (3) new I/O interface with enhanced parasite powering support, (4) advanced search filtering, (5) overdrive mode support, (6) Dallas ...

The sample code below demonstrates how to interface with a 1-wire device using Jim Studt's OneWire Arduino library, with the DS18S20 digital thermometer as an example. Many 1-Wire chips can operate in both parasitic and normal power modes.

This article covers the basics of using the 1-Wire protocol with an Arduino with the help of the OneWire library. The following sections provide information about the 1-Wire protocol, interface, power, addressing devices, reading devices and finally a short glimpse into the library's history.

If more than one slave is present on the bus and a read command is issued following the Skip ROM command, data collision will occur on the bus as multiple slaves transmit simultaneously (open drain pulldowns will produce a wired-AND result).