# 1-WIRE

The 1-Wire protocol is a unique half-duplex communication protocol that allows devices to interact using a singular data line along with a ground reference. Though asynchronous in design, specific timing specifications are employed to differentiate between 1-Wire commands. Similar to I2C, the 1-Wire protocol utilizes an open-drain configuration at the hardware level.

<figure><img src="/files/gHxkg5vPm0IhtSa9m6H0" alt=""><figcaption><p>1-Wire command panel</p></figcaption></figure>

## Settings

<figure><img src="/files/JZsBRVqZ8bZ8iJAoZ5HH" alt=""><figcaption><p>Settings sub-panel</p></figcaption></figure>

Within this segment, users can opt to use internal pull-up resistors if available in the host adapter. Accessing the Command dropdown menu reveals available ROM Commands: SKIP and SELECT (often referred to as MATCH). The SKIP command broadcasts a message to all connected target devices, while the SELECT command communicates with a specific device. If there's only one target device on the 1-Wire bus, these commands are disregarded. The SCAN button initiates a series of SEARCH commands, unveiling the 64-bit addresses of all target devices connected to the bus.

## Transfer

<figure><img src="/files/l3YEpHuIr4bdE8I1KFDm" alt=""><figcaption><p>Transfer sub-panel</p></figcaption></figure>

This segment features two inputs: 'Bytes to Read' and 'Bytes to Write'. It also includes three action buttons: READ, WRITE, and TRANSFER. As with other protocols, the 'Bytes to Write' field recognizes bytes in hexadecimal format. Activating the TRANSFER button initiates a Write action, immediately followed by a Read action.


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