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For the latest updates and ongoing development, please visit our new repository at WIZnet-PICO-AZURE-C.
RP2040 - W5100S or W5500 network examples - Azure IoT Cloud functions, Azure IoT SDK, Azure IoT device client, ...
- 1. 🎯 Azure IoT SDK examples
- 2. 🎓 Getting started
| Application | Description |
|---|---|
| examples | Basic Azure IoT Cloud functions with Azure IoT SDK. (NonOS + WIZnet W5100S or W5500) |
3rd party SDKs & libraries are in the RP2040-HAT-AZURE-C\libraries directory of 'RP2040-HAT-AZURE-C', the example for connecting Azure IoT Cloud.
| SDKs & libraries | Description |
|---|---|
| ioLibrary_Driver | A library that can control WIZnet's W5x00 series Ethernet chip. |
| mbedtls | It supports security algorithms and SSL and TLS connection. |
| azure-iot-sdk-c | A collection of C source files consisting of Embedded C (C-SDK) that can be used by embedded applications to securely connect IoT devices to Azure IoT Cloud. |
| pico-sdk | It makes a development environment for building software applications for the Pico(RP2040) platform. |
| pico-extras | pico-extras has additional libraries that are not yet ready for inclusion the Pico SDK proper, or are just useful but don't necessarily belong in the Pico SDK. |
Each SDKs & libraries consists of submodule.
Please refer to Getting Started with the Raspberry Pi Pico and the README in the pico-sdk for information on getting up and running.
For Pico(RP2040) - W5100S or W5500 platform, we need to port code, please check porting guide below.
Result of above porting can be found in RP2040-HAT-AZURE-C\port\azure-iot-sdk-c directory.
First, set the ethernet chip according to the evaluation board used in the following RP2040-HAT-AZURE-C/CMakeLists.txt file.
| Evaluation board | Ethernet chip |
|---|---|
| WIZnet Ethernet HAT | W5100S |
| W5100S-EVB-Pico | W5100S |
| W5500-EVB-Pico | W5500 |
For example, when using WIZnet Ethernet HAT or W5100S-EVB-Pico:
# Set ethernet chip
set(WIZNET_CHIP W5100S)When using W5500-EVB-Pico:
# Set ethernet chip
set(WIZNET_CHIP W5500)And find the line similar to this and replace it as your environment:
# Set the project root directory if it's not already defined, as may happen if
# the tests folder is included directly by a parent project, without including
# the top level CMakeLists.txt.
if(NOT DEFINED AZURE_SDK_DIR)
set(AZURE_SDK_DIR ${CMAKE_SOURCE_DIR}/libraries/azure-iot-sdk-c)
message(STATUS "AZURE_SDK_DIR = ${AZURE_SDK_DIR}")
endif()
if(NOT DEFINED WIZNET_DIR)
set(WIZNET_DIR ${CMAKE_SOURCE_DIR}/libraries/ioLibrary_Driver)
message(STATUS "WIZNET_DIR = ${WIZNET_DIR}")
endif()
if(NOT DEFINED MBEDTLS_LIB_DIR)
set(MBEDTLS_LIB_DIR ${CMAKE_SOURCE_DIR}/libraries/mbedtls)
message(STATUS "MBEDTLS_LIB_DIR = ${MBEDTLS_LIB_DIR}")
endif()
if(NOT DEFINED PORT_DIR)
set(PORT_DIR ${CMAKE_SOURCE_DIR}/port)
message(STATUS "PORT_DIR = ${PORT_DIR}")
endif()In the following RP2040-HAT-AZURE-C/examples/main.c source file, find the line similar to this and replace it as you want:
(...)
// The application you wish to use should be uncommented
//
#define APP_TELEMETRY
//#define APP_C2D
//#define APP_CLI_X509
//#define APP_PROV_X509
// The application you wish to use DHCP mode should be uncommented
#define _DHCP
static wiz_NetInfo g_net_info =
{
.mac = {0x00, 0x08, 0xDC, 0x12, 0x34, 0x56}, // MAC address
.ip = {192, 168, 11, 2}, // IP address
.sn = {255, 255, 255, 0}, // Subnet Mask
.gw = {192, 168, 11, 1}, // Gateway
.dns = {8, 8, 8, 8}, // DNS server
#ifdef _DHCP
.dhcp = NETINFO_DHCP // DHCP enable/disable
#else
// this example uses static IP
.dhcp = NETINFO_STATIC
#endif
};Copy & Paste proper connection string and key value from the Azure Portal to RP2040-HAT-AZURE-C/examples/sample_certs.c:
/* Paste in the your iothub connection string */
const char pico_az_connectionString[] = "[device connection string]";
const char pico_az_x509connectionString[] = "[device connection string]";
const char pico_az_x509certificate[] =
"-----BEGIN CERTIFICATE-----""\n"
"-----END CERTIFICATE-----";
const char pico_az_x509privatekey[] =
"-----BEGIN PRIVATE KEY-----""\n"
"-----END PRIVATE KEY-----";
const char pico_az_id_scope[] = "[ID Scope]";
const char pico_az_COMMON_NAME[] = "[custom-hsm-device]";
const char pico_az_CERTIFICATE[] =
"-----BEGIN CERTIFICATE-----""\n"
"-----END CERTIFICATE-----";
const char pico_az_PRIVATE_KEY[] =
"-----BEGIN PRIVATE KEY-----""\n"
"-----END PRIVATE KEY-----";Run the following CMake commands from the root of the repository:
mkdir build
cd build
# As your environment, select
cmake .. -G "MSYS Makefiles" ## on MSYS2 (MinGW64) + Windows 10 Platform
# or
cmake .. -G "Visual Studio 15 2017" ## For Visual Studio 2017
# or
cmake .. -G "Visual Studio 16 2019" -A Win32
# or
cmake ..
cd examples
make
Then, copy generated "main.uf2" file into your RP-Pico board. Done!
on MSYS2 (MinGW64) + Windows 10 Platform
(PWD) RP2040-HAT-AZURE-C/build
$ cd ..
(PWD) RP2040-HAT-AZURE-C
$ rm -rf build
(PWD) RP2040-HAT-AZURE-C
$ mkdir build
(PWD) RP2040-HAT-AZURE-C
$ cd build
(PWD) RP2040-HAT-AZURE-C/build
$ cmake .. -G "MSYS Makefiles"
-- PICO_SDK_PATH = D:/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk
-- Found Git: C:/msys64/usr/bin/git.exe (found version "2.34.1")
RP2040-HAT-AZURE-C patch utils found
Submodule 'libraries/azure-iot-sdk-c' (https://github.com/Azure/azure-iot-sdk-c.git) registered for path 'libraries/azure-iot-sdk-c'
Submodule 'libraries/ioLibrary_Driver' (https://github.com/Wiznet/ioLibrary_Driver.git) registered for path 'libraries/ioLibrary_Driver'
Submodule 'libraries/mbedtls' (https://github.com/ARMmbed/mbedtls.git) registered for path 'libraries/mbedtls'
Submodule 'libraries/pico-extras' (https://github.com/raspberrypi/pico-extras.git) registered for path 'libraries/pico-extras'
Submodule 'libraries/pico-sdk' (https://github.com/raspberrypi/pico-sdk.git) registered for path 'libraries/pico-sdk'
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/ioLibrary_Driver'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/mbedtls'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/pico-extras'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk'...
Submodule path 'libraries/azure-iot-sdk-c': checked out '808a5595f98853a5f2eae2c67dd9b3608a2338ea'
Submodule path 'libraries/ioLibrary_Driver': checked out 'e285249784ce6c09b869502bb6715337b45278e3'
Submodule path 'libraries/mbedtls': checked out '8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b'
Submodule path 'libraries/pico-extras': checked out '77eae2836638baf2f61b321eb61125da99bb4445'
Submodule path 'libraries/pico-sdk': checked out '2062372d203b372849d573f252cf7c6dc2800c0a'
Submodule 'azure-c-shared-utility' (https://github.com/Azure/azure-c-shared-utility.git) registered for path 'c-utility'
Submodule 'deps/azure-c-testrunnerswitcher' (https://github.com/Azure/azure-c-testrunnerswitcher.git) registered for path 'deps/azure-c-testrunnerswitcher'
Submodule 'deps/azure-ctest' (https://github.com/Azure/azure-ctest.git) registered for path 'deps/azure-ctest'
Submodule 'deps/azure-macro-utils-c' (https://github.com/Azure/azure-macro-utils-c.git) registered for path 'deps/azure-macro-utils-c'
Submodule 'deps/parson' (https://github.com/kgabis/parson.git) registered for path 'deps/parson'
Submodule 'deps/uhttp' (https://github.com/Azure/azure-uhttp-c.git) registered for path 'deps/uhttp'
Submodule 'deps/umock-c' (https://github.com/Azure/umock-c.git) registered for path 'deps/umock-c'
Submodule 'provisioning_client/deps/RIoT' (https://github.com/Microsoft/RIoT.git) registered for path 'provisioning_client/deps/RIoT'
Submodule 'provisioning_client/deps/utpm' (https://github.com/Azure/azure-utpm-c.git) registered for path 'provisioning_client/deps/utpm'
Submodule 'azure-uamqp-c' (https://github.com/Azure/azure-uamqp-c.git) registered for path 'uamqp'
Submodule 'azure-umqtt-c' (https://github.com/Azure/azure-umqtt-c.git) registered for path 'umqtt'
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/c-utility'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/azure-c-testrunnerswitcher'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/azure-ctest'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/azure-macro-utils-c'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/parson'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/uhttp'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/deps/umock-c'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/provisioning_client/deps/RIoT'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/provisioning_client/deps/utpm'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/uamqp'...
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c/umqtt'...
Submodule path 'c-utility': checked out '73a2039cc0de5ececf5755ebe731a6b5b98f85da'
Submodule path 'deps/azure-c-testrunnerswitcher': checked out '8734bd6c53c88dd6c0cea8e87d70b9964726484a'
Submodule path 'deps/azure-ctest': checked out '4aa84c45236ecda21983fb682f542f17d0b21e19'
Submodule path 'deps/azure-macro-utils-c': checked out '5926caf4e42e98e730e6d03395788205649a3ada'
Submodule path 'deps/parson': checked out '8beeb5ea4da5eedff8d3221307ef04855804a920'
Submodule path 'deps/uhttp': checked out 'db8ac9c1353fe05cf6917e8ec8bcb866bf4a6f11'
Submodule path 'deps/umock-c': checked out '504193e65d1c2f6eb50c15357167600a296df7ff'
Submodule path 'provisioning_client/deps/RIoT': checked out 'e878185a8fb433902bee185b6f3a8c66aa232bff'
Submodule path 'provisioning_client/deps/utpm': checked out '1d0642281086669c6239f9bc1b085463044d69d6'
Submodule path 'uamqp': checked out 'b75cdb7e1736a388fe3e9fc2a99493aa1db6f43f'
Submodule path 'umqtt': checked out '12cb55ee5a926a124f22ad737c7cec35f6af7165'
Submodule 'tinyusb' (https://github.com/hathach/tinyusb.git) registered for path 'lib/tinyusb'
Cloning into '/d/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk/lib/tinyusb'...
Submodule path 'lib/tinyusb': checked out '4bfab30c02279a0530e1a56f4a7c539f2d35a293'
submodules ioLibrary_Driver initialised
Running patch D:/RP2040/RP2040-HAT-AZURE-C/patches/01_iolibrary_driver_ethernet_chip.patch
Running patch D:/RP2040/RP2040-HAT-AZURE-C/patches/02_iolibrary_driver_sntp.patch
PICO_SDK_PATH is D:/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk
Defaulting PICO_PLATFORM to rp2040 since not specified.
Defaulting PICO platform compiler to pico_arm_gcc since not specified.
-- Defaulting build type to 'Release' since not specified.
PICO compiler is pico_arm_gcc
-- RP2040-HAT-AZURE-C SDK version is 1.0.0
-- The C compiler identification is GNU 10.1.0
-- The CXX compiler identification is GNU 10.1.0
-- The ASM compiler identification is GNU
-- Found assembler: C:/msys64/mingw64/bin/arm-none-eabi-gcc.exe
Defaulting PICO target board to pico since not specified.
Using board configuration from D:/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk/src/boards/include/boards/pico.h
-- Found Python3: C:/Program Files/Python39/python.exe (found version "3.9.6") found components: Interpreter
TinyUSB available at D:/RP2040/RP2040-HAT-AZURE-C/libraries/pico-sdk/lib/tinyusb/src/portable/raspberrypi/rp2040; enabling build support for USB.
-- AZURE_SDK_DIR = D:/RP2040/RP2040-HAT-AZURE-C/libraries/azure-iot-sdk-c
-- WIZNET_DIR = D:/RP2040/RP2040-HAT-AZURE-C/libraries/ioLibrary_Driver
-- MBEDTLS_LIB_DIR = D:/RP2040/RP2040-HAT-AZURE-C/libraries/mbedtls
-- PORT_DIR = D:/RP2040/RP2040-HAT-AZURE-C/port
-- Performing Test C_COMPILER_SUPPORTS_WFORMAT_SIGNEDNESS
-- Performing Test C_COMPILER_SUPPORTS_WFORMAT_SIGNEDNESS - Failed
-- Configuring done
-- Generating done
-- Build files have been written to: D:/RP2040/RP2040-HAT-AZURE-C/build
(PWD) RP2040-HAT-AZURE-C/build
$ cd examples/
(PWD) RP2040-HAT-AZURE-C/build/examples
$ make
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(PWD) RP2040-HAT-AZURE-C/build/examples
$ cp main.uf2 /f/
📑 Let's see this doc for iothub_ll_telemetry_sample application
📑 Let's see this doc for iothub_ll_c2d_sample application
📑 Let's see this doc for iothub_ll_client_x509_sample application
📑 Let's see this doc for prov_dev_client_ll_sample application