# FZ - iButton

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## Intro

For more info about what is an iButton check:

{% content-ref url="../ibutton.md" %}
[ibutton.md](../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="../../../.gitbook/assets/image (565).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:**
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<figure><img src="../../../.gitbook/assets/image (138).png" alt=""><figcaption></figcaption></figure>

## References

* [https://blog.flipperzero.one/taming-ibutton/](https://blog.flipperzero.one/taming-ibutton/)

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<details>

<summary>Support HackTricks</summary>

* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.

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