.. _acn52832:

acn52832
########

Overview
********

The acn52832 is a module in a small form factor which features the Nordic Semiconductor
nRF52832 ARM Cortex-M4F CPU and the following devices:

* :abbr:`ADC (Analog to Digital Converter)`
* CLOCK
* FLASH
* :abbr:`GPIO (General Purpose Input Output)`
* :abbr:`I2C (Inter-Integrated Circuit)`
* :abbr:`MPU (Memory Protection Unit)`
* :abbr:`NVIC (Nested Vectored Interrupt Controller)`
* :abbr:`PWM (Pulse Width Modulation)`
* RADIO (Bluetooth Low Energy)
* :abbr:`RTC (nRF RTC System Clock)`
* :abbr:`SPI (Serial Peripheral Interface)`
* :abbr:`UART (Universal asynchronous receiver-transmitter)`
* :abbr:`WDT (Watchdog Timer)`

See `Nordic infocenter`_ for more information about the SoC.

Hardware
********

Additionally to the SoC the board provides an on-board antenna with a RF matching circuit,
two external oscillators with 32 MHz and 32.768 kHz, load capacitors, a tag-connector
and a RGB-LED.

Connections
===========

Pinout
------

+-------+-------------+--------------------+---------------+
| PIN # | Tag-Connect | NRF52832 Functions | Configuration |
+=======+=============+====================+===============+
|  1    | 5           | GND                |               |
+-------+-------------+--------------------+---------------+
|  2    |             | P0.25              |               |
+-------+-------------+--------------------+---------------+
|  3    |             | P0.26              |               |
+-------+-------------+--------------------+---------------+
|  4    |             | P0.27              |               |
+-------+-------------+--------------------+---------------+
|  5    |             | P0.28/AIN4         |               |
+-------+-------------+--------------------+---------------+
|  6    |             | P0.29/AIN5         |               |
+-------+-------------+--------------------+---------------+
|  7    |             | P0.30/AIN6         |               |
+-------+-------------+--------------------+---------------+
|  8    |             | P0.31              |               |
+-------+-------------+--------------------+---------------+
|  9    |             | P0.02/AIN0         |               |
+-------+-------------+--------------------+---------------+
| 10    |             | P0.03/AIN1         |               |
+-------+-------------+--------------------+---------------+
| 11    |             | P0.04/AIN2         |               |
+-------+-------------+--------------------+---------------+
| 12    | 5           | GND                |               |
+-------+-------------+--------------------+---------------+
| 13    | 5           | GND                |               |
+-------+-------------+--------------------+---------------+
| 14    |             | P0.05/AIN3         |               |
+-------+-------------+--------------------+---------------+
| 15    |             | P0.06              | UART_RX       |
+-------+-------------+--------------------+---------------+
| 16    |             | P0.07              | UART_TX       |
+-------+-------------+--------------------+---------------+
| 17    |             | P0.08              |               |
+-------+-------------+--------------------+---------------+
| 18    |             | NFC1/P0.09         |               |
+-------+-------------+--------------------+---------------+
| 19    |             | NFC2/P0.10         |               |
+-------+-------------+--------------------+---------------+
| 20    |             | P0.11              |               |
+-------+-------------+--------------------+---------------+
| 21    |             | P0.12              |               |
+-------+-------------+--------------------+---------------+
| 22    |             | P0.14/TRACEDATA[3] |               |
+-------+-------------+--------------------+---------------+
| 23    | 1           | VCC                |               |
+-------+-------------+--------------------+---------------+
| 24    | 1           | VCC                |               |
+-------+-------------+--------------------+---------------+
| 25    |             | P0.15/TRACEDATA[2] |               |
+-------+-------------+--------------------+---------------+
| 26    |             | P0.16/TRACEDATA[1] |               |
+-------+-------------+--------------------+---------------+
| 27    |             | P0.17              |               |
+-------+-------------+--------------------+---------------+
| 28    | 6           | P0.18/TRACEDATA[0] |               |
+-------+-------------+--------------------+---------------+
| 29    |             | P0.19              |               |
+-------+-------------+--------------------+---------------+
| 30    |             | P0.20/TRACECLK     |               |
+-------+-------------+--------------------+---------------+
| 31    | 3           | P0.21/RESET        |               |
+-------+-------------+--------------------+---------------+
| 32    | 1           | VCC                |               |
+-------+-------------+--------------------+---------------+
| 33    | 2           | SWDIO              |               |
+-------+-------------+--------------------+---------------+
| 34    | 4           | SWDCLK             |               |
+-------+-------------+--------------------+---------------+
| 35    | 5           | GND                |               |
+-------+-------------+--------------------+---------------+

RGB-LED
-------

+------+-------+--------------+
| LED  | Color | NRF52832 Pin |
+======+=======+==============+
| led0 | red   | P0.22        |
+------+-------+--------------+
| led1 | green | P0.24        |
+------+-------+--------------+
| led2 | blue  | P0.23        |
+------+-------+--------------+

References
**********
.. target-notes::

.. _Nordic infocenter: https://infocenter.nordicsemi.com/