> For the complete documentation index, see [llms.txt](https://development-test.pycom.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://development-test.pycom.io/product-info-datasheets/development/gpy.md).

# GPy

![](https://3086745545-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIL0iGdl11z7Jos_jpX%2F-LdFc9HSbtu2jNbqdzD4%2F-LKN87Yf-xZ772800Vwc%2Fgpy%20\(1\).png?generation=1556130909624618\&alt=media)

**Store**: [Buy Here](http://www.pycom.io/gpy)

**Getting Started:** [Click Here](/getting-started/connection/gpy.md)

## Pinout

The pinout of the GPy is available as a PDF File

{% file src="/files/-LKN87YkKZIYmHqbluIm" %}
GPy Pinout
{% endfile %}

![](https://3086745545-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIL0iGdl11z7Jos_jpX%2F-LdFc9HSbtu2jNbqdzD4%2F-LKN87YodD-3HXz4X2CG%2Fgpy-pinout.png?generation=1556130917887173\&alt=media)

{% hint style="info" %}
Please note that the PIN assignments for UART1 (TX1/RX1), SPI (CLK, MOSI, MISO) and I2C (SDA, SCL) are defaults and can be changed in Software.
{% endhint %}

## Datasheet

The datasheet of the GPy is available as a PDF File.

{% file src="/files/-LKN87YqAf5ixiBYtexw" %}
GPy Datasheet
{% endfile %}

The drawing of the LTE-M antenna is available as a PDF File.

{% file src="/files/-LKN82sjrfjPYDx6GROX" %}
LTE-M Antenna Drawing
{% endfile %}

## Notes

### WiFi

By default, upon boot the GPy will create a WiFi access point with the SSID `gpy-wlan-XXXX`, where `XXXX` is a random 4-digit number, and the password `www.pycom.io`.

The RF switch that selects between the on-board and external antenna is connected to `P12`, for this reason using `P12` should be avoided unless WiFi is disabled in your application.

### Power

The `Vin` pin on the GPy can be supplied with a voltage ranging from `3.5v` to `5.5v`. The `3.3v` pin on the other hand is output **only**, and must not be used to feed power into the GPy, otherwise the on-board regulator will be damaged.

### AT Commands

The AT commands for the Sequans Monarch modem on the GPy are available in a PDF file.

{% file src="/files/-LKN87YvPQRJ1kAxyEYr" %}
AT Commands for Sequans
{% endfile %}

## Tutorials

Tutorials on how to the GPy module can be found in the [examples](/tutorials-and-examples/introduction.md) section of this documentation. The following tutorials might be of specific interest for the GPy:

* [WiFi connection](/tutorials-and-examples/all/wlan.md)
* [LTE CAT-M1](/tutorials-and-examples/lte/cat-m1.md)
* [NB-IoT](/tutorials-and-examples/lte/nb-iot.md)
* [BLE](/tutorials-and-examples/all/ble.md)