.. _rpi_pico_uno_flexypin:

RaspberryPi Pico to UNO FlexyPin Adapter
########################################

Overview
********

Raspberry Pi Pico to Uno `FlexyPin Adapter` is a converter-PCB to Arduino UNO form-factor
from Raspberry Pi Pico that is released in Open Source Hardware.
This board design to use with `FlexyPin`.
The FlexyPin holds Pico and contacts to castellated through-hole.
With simple soldering, it can also be used as a board to convert the RapsberryPi Pico
o the Arduino UNO form factor.

.. image:: img/rpi_pico_uno_flexypin.png
     :align: center
     :alt: RaspberryPi Pico to UNO FlexyPin Adapter

Pins Assignment of the RaspberryPi Pico to UNO FlexyPin Adapter
===============================================================

+---------------------+------------+
| Rpi-Pico Pin        | UNO Header |
+=====================+============+
| GP0 (UART0 TX)      | D1         |
+---------------------+------------+
| GP1 (UART0 RX)      | D0         |
+---------------------+------------+
| GP2                 | D8         |
+---------------------+------------+
| GP3                 | D9         |
+---------------------+------------+
| GP4                 | D2         |
+---------------------+------------+
| GP5                 | D3         |
+---------------------+------------+
| GP6                 | D4         |
+---------------------+------------+
| GP7                 | D5         |
+---------------------+------------+
| GP8                 | D6         |
+---------------------+------------+
| GP9                 | D7         |
+---------------------+------------+
| GP13                | A3         |
+---------------------+------------+
| GP14 (I2C1 SDA)     | A4         |
+---------------------+------------+
| GP15 (I2C1 SCL)     | A5         |
+---------------------+------------+
| GP16 (SPI0 RX/CIPO) | D12        |
+---------------------+------------+
| GP17 (SPI0 CS)      | D10        |
+---------------------+------------+
| GP18 (SPI0 SCK)     | D13        |
+---------------------+------------+
| GP19 (SPI0 TX/COPI) | D11        |
+---------------------+------------+
| GP20                | D14        |
+---------------------+------------+
| GP21 (I2C0 SCL)     | D15        |
+---------------------+------------+
| GP26 (I2C0 SDA)     | A0         |
+---------------------+------------+
| GP27                | A1         |
+---------------------+------------+
| GP28                | A2         |
+---------------------+------------+

Programming
***********

Set ``-DSHIELD=rpi_pico_uno_flexypin`` when you invoke ``west build``.
This shield is just a converter, so it is usually used with other Arduino shield.

For example,

.. zephyr-app-commands::
   :zephyr-app:  samples/net/wifi
   :board: rpi_pico
   :shield: 'rpi_pico_uno_flexypin;esp_8266_arduino'
   :goals: build

References
**********

.. target-notes::

.. _FlexyPin:
   https://github.com/solderparty/flexypin

.. _FlexyPin Adapters:
   https://github.com/solderparty/flexypin_adapters_hw