# FZ - iButton

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## Intro

For more info about what is an iButton check:

{% content-ref url="/pages/4K7z2RJlhnur0RAIx1u2" %}
[iButton](/dashboard/todo/radio-hacking/ibutton.md)
{% endcontent-ref %}

## Design

The **blue** part of the following imageis how you would need to **put the real iButton** so the Flipper can **read it.** The **green** part is how you need to **touch the reader** with the Flipper zero to **correctly emulate an iButton**.

<figure><img src="https://github.com/nirugima/hacktricks/blob/main/.gitbook/assets/image%20(20).png" alt=""><figcaption></figcaption></figure>

## Actions

### Read

In Read Mode Flipper is waiting for the iButton key to touch and is able to digest any of three types of keys: **Dallas, Cyfral, and Metakom**. Flipper will **figure out the type of the key itself**. The name of the key protocol will be displayed on the screen above the ID number.

### Add manually

It's possible to **add manually** an iButton of type: **Dallas, Cyfral, and Metakom**

### **Emulate**

It's possible to **emulate** saved iButtons (read or manually added).

{% hint style="info" %}
If you cannot make the expected contacts of the Flipper Zero touch the reader you can **use the external GPIO:**
{% endhint %}

<figure><img src="https://github.com/nirugima/hacktricks/blob/main/.gitbook/assets/image%20(24)%20(1).png" alt=""><figcaption></figcaption></figure>

## References

* <https://blog.flipperzero.one/taming-ibutton/>

<details>

<summary><a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ HackTricks LIVE Twitch</strong></a> <strong>Wednesdays 5.30pm (UTC) 🎙️ -</strong> <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>

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