1.. _semtech_sx1272mb2das:
2
3Semtech SX1272MB2DAS LoRa Shield
4################################
5
6Overview
7********
8
9The Semtech SX1272MB2DAS LoRa shield is an Arduino
10compatible shield based on the SX1272 LoRa transceiver
11from Semtech.
12
13More information about the shield can be found
14at the `mbed SX1272MB2xAS website`_.
15
16Pins Assignment of the Semtech SX1272MB2DAS LoRa Shield
17=======================================================
18
19+-----------------------+-----------------+
20| Shield Connector Pin  | Function        |
21+=======================+=================+
22| A0                    | SX1272 RESET    |
23+-----------------------+-----------------+
24| D2                    | SX1272 DIO0     |
25+-----------------------+-----------------+
26| D3                    | SX1272 DIO1     |
27+-----------------------+-----------------+
28| D4                    | SX1272 DIO2     |
29+-----------------------+-----------------+
30| D5                    | SX1272 DIO3     |
31+-----------------------+-----------------+
32| D10                   | SX1272 SPI NSS  |
33+-----------------------+-----------------+
34| D11                   | SX1272 SPI MOSI |
35+-----------------------+-----------------+
36| D12                   | SX1272 SPI MISO |
37+-----------------------+-----------------+
38| D13                   | SX1272 SPI SCK  |
39+-----------------------+-----------------+
40
41The SX1272 signals DIO4 and DIO5 are not available at the shield connector.
42
43Requirements
44************
45
46This shield can only be used with a board which provides a configuration
47for Arduino connectors and defines node aliases for SPI and GPIO interfaces
48(see :ref:`shields` for more details).
49
50Programming
51***********
52
53Set ``-DSHIELD=semtech_sx1272mb2das`` when you invoke ``west build``. For
54example:
55
56.. zephyr-app-commands::
57   :zephyr-app: samples/lorawan/class_a
58   :board: nucleo_f429zi
59   :shield: semtech_sx1272mb2das
60   :goals: build
61
62References
63**********
64
65.. target-notes::
66
67.. _mbed SX1272MB2xAS website:
68   https://os.mbed.com/components/SX1272MB2xAS/
69