Klika Tech » Code » Nucleo-AWS-IoT-mbed

Klika Tech / Mbed 2 deprecated Nucleo-AWS-IoT-mbed

Example of AWS IoT connection and Web Dashboard thru STM32 Nucleo evaluation board and mbed OS.

Dependencies: X_NUCLEO_IKS01A1 mbed FP MQTTPacket DnsQuery ATParser

Introduction

The demo is aimed to STM32 Nucleo board with WiFi and sensors expansions. The board is a "thing" for the AWS IoT service. It updates IoT service shadow with sensors data every second and checks subscription messages.

Hardware Configuration

NUCLEO-F401RE - Nucleo Development Board
X-NUCLEO-IDW01M1 - Wi-Fi expansion board for STM32 Nucleo
X-NUCLEO-IKS01A1 - Motion MEMS and environmental sensor expansion board for STM32 Nucleo

Software Configuration

Import this Project to mbed online compiler
Find the next part of code in main.cpp file ...

WiFi network credential

#include "mbed.h"
// WiFi network credential
#define SSID   ""  // Network must be visible otherwise it can't connect
#define PASSW  ""
#error "Wifi SSID & password empty"

... And set it to your Network Name and Password. Do not forget to remove "#error" pragma line.

Information

Nucleo WiFi module is not the same as your smartphone or laptope - it is based on demo board. To avoid connection problems:

Place Nucleo as close to WiFi hot spot as possible. Or...
Turn on mobile hot spot in your laptop as close to the device as possible.
Make sure that hot spot permits 2.4 GHz band communications

Setup BackEnd and store certificates using this backend setup instruction
Find AWS_IOT_MQTT_HOST define and change it to HTTPS point mentioned in your AWS IoT thing properties named "interact"

#define AWS_IOT_MQTT_HOST              "xxxxxxxxxx.iot.us-east-1.amazonaws.com" //Use your own host.

Find the certificate defines clientCRT and clientKey in main.cpp file and change it to ones provided by Amazon.

/**********************************************************************************************
***********************************************************************************************
				Device Identity Certificates: Modify for your AWS IoT Thing
***********************************************************************************************
***********************************************************************************************/

/****************************************
(somecode)-certificate.pem.crt - Amazon signed PEM sertificate.
*****************************************/

//This Client cert is example. Use own instead.
const uint8_t clientCRT[] = "\
-----BEGIN CERTIFICATE-----\n\
MIIDBjCCAe6gAwIBAgIUVph856omeIxW3UPioq+UrX1DbwowDQYJKoZIhvcNAQEL\
BQAwTTFLMEkGA1UECwxCQW1hem9uIFdlYiBTZXJ2aWNlcyBPPUFtYXpvbi5jb20g\
SW5jLiBMPVNlYXR0bGUgU1Q9V2FzaGluZ3RvbiBDPVVTMB4XDTE3MDUyNTExNTEy\
OVoXDTQ5MTIzMTIzNTk1OVowgZUxCzAJBgNVBAYTAkJZMQ4wDAYDVQQIDAVNaW5z\
azEOMAwGA1UEBwwFTWluc2sxFzAVBgNVBAoMDktsaWthLVRlY2ggTExDMRcwFQYD\
VQQLDA5LbGlrYS1UZWNoIExMQzEMMAoGA1UEAwwDUm5EMSYwJAYJKoZIhvcNAQkB\
FhdtdmF0YWxldUBrbGlrYS10ZWNoLmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEH\
A0IABCJgOQJmoTBJVPfli9Hm/JVixaxkY5rtlgrYO3hSl633A2hg0P/ue0wXDbF3\
aQ0X57IRFE4k4FEbr3UXjT/IczKjYDBeMB8GA1UdIwQYMBaAFK3YzTUPlYB2Li75\
i/z8rEogr1d6MB0GA1UdDgQWBBT18HXBaXFJuAR/0SwegnxJ+pyJ6TAMBgNVHRMB\
Af8EAjAAMA4GA1UdDwEB/wQEAwIHgDANBgkqhkiG9w0BAQsFAAOCAQEAb0Ux1aH5\
RLxjrfGqXN6rPVqh8QQRS+AyBfzmaQN8HaPZMkX5WxXLvcn0A3uWlwQxPPkcZ4zf\
51GHtFFQWB4YZ8dx8mUQ0v/j7onHjCJgZ8iDgwOyKMGtnsDZWCakQw+a6cj+NrMZ\
tzhjwCzEEP6ePcbXwErI5OOzLuWns2L/JEr2wWNkokgRuS8ewr/SQ9OLWIWa2rFM\
ahPNTb3y/qBeWdjeJmhI+TOxdqIpsF8roWP25zwo/zkzCHCjXFBrL+0CA4MpxIl9\
x02i7aAhlJ6ys80lDxdeWeeQJXRKkGknP8mcmKn3iEqqJ5s1dQePj2b5d3ldatya\
wsxQBqqZXzIWEw==\
\n\
-----END CERTIFICATE-----\n";



/**********************************************************************************************
***********************************************************************************************
						Private Key: Modify for your AWS IoT Thing
***********************************************************************************************
***********************************************************************************************/

/********************************************************************8****************************************
nucleo.key.pem - client key generated according to readme.
**************************************************************************************************************/

//This Client Key is example. Use own instead.
const uint8_t clientKey[] ="\
-----BEGIN EC PARAMETERS-----\n\
BggqhkjOPQMBBw==\
-----END EC PARAMETERS-----\n\
-----BEGIN EC PRIVATE KEY-----\n\
MHcCAQEEIHPRfWSC8/k/BsqDWKuP15dXsI9fGwpkTIsLZe6mIrAAoAoGCCqGSM49\
AwEHoUQDQgAEImA5AmahMElU9+WL0eb8lWLFrGRjmu2WCtg7eFKXrfcDaGDQ/+57\
TBcNsXdpDRfnshEUTiTgURuvdReNP8hzMg==\
-----END EC PRIVATE KEY-----\n";

Build and Check

Plugin your board to USB of your PC. USB Disk Drive and USB COM Port should appear in your system.
Open any Serial Console, connect it to your USB Serial Port and setup speed equal to 115200.
Compile this Project and save .bin file to USB Disk Drive
After board reset you should see next log in serial console:

X-NUCLEO-IDW01M1 mbed Application

connecting to AP
LOG:   int main() L#361 Connected to WiFI.
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#186 =====================================
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#187 Connecting WiFi.
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#188 Nucleo IP ADDRESS: X.X.X.X
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#189 Nucleo MAC ADDRESS: 00:11:22:33:44:55
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#190 Server Hostname: xxxxxxxx.iot.us-east-1.amazonaws.com port: 8883
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#191 Client ID: Nucleo
LOG:   int connect(MQTT::Client<MQTTWiFi, Countdown, 350, 5> *, MQTTWiFi *) L#194 =====================================
LOG:   int MQTTSocket::getNTPtime(int) L#58 Success receiving time from ntp server. Tick from 1 Jan 1970 is equal to 1505399292.
--->TCP Connected
--->MQTT Connected
--->>>MQTT subscribed to: Nucleo/test
Length - 245, Publishing {"state": {"reported": {"temperature": 23.690001, "humidity": 98.190002, "pressure": 982.869141, "accelerometer": [-0.009000, 0.030000, 0.971000], "gyroscope": [0.420000, -2.660000, 1.750000], "magnetometer": [-3.600000, -7.100000, 53.300000]}}}
Length - 245, Publishing {"state": {"reported": {"temperature": 23.660000, "humidity": 98.010002, "pressure": 982.770264, "accelerometer": [-0.009000, 0.030000, 0.971000], "gyroscope": [0.770000, -2.310000, 1.470000], "magnetometer": [-3.100000, -8.300000, 54.200000]}}}
Length - 245, Publishing {"state": {"reported": {"temperature": 23.670000, "humidity": 98.129997, "pressure": 982.724121, "accelerometer": [-0.008000, 0.029000, 0.971000], "gyroscope": [0.630000, -2.380000, 1.400000], "magnetometer": [-3.100000, -7.900000, 53.400000]}}}
Length - 245, Publishing {"state": {"reported": {"temperature": 23.690001, "humidity": 98.019997, "pressure": 982.840088, "accelerometer": [-0.009000, 0.030000, 0.972000], "gyroscope": [0.700000, -2.450000, 1.540000], "magnetometer": [-3.700000, -7.900000, 53.400000]}}}
Length - 245, Publishing {"state": {"reported": {"temperature": 23.709999, "humidity": 98.040001, "pressure": 982.828613, "accelerometer": [-0.009000, 0.030000, 0.971000], "gyroscope": [0.630000, -2.520000, 1.470000], "magnetometer": [-2.900000, -7.400000, 52.400000]}}}
Length - 245, Publishing {"state": {"reported": {"temperature": 23.719999, "humidity": 97.860001, "pressure": 982.917236, "accelerometer": [-0.026000, 0.103000, 0.891000], "gyroscope": [1.050000, -2.310000, 1.260000], "magnetometer": [-3.300000, -7.100000, 53.500000]}}}

Information

Device connection state might be checked by Green Led on the board. Green light means that device is connected and transferring data to cloud.

Configure and start your dashboard using instruction and corresponding sources from github
Use Blue button to set up markers to charts.
Use AWS IoT console MQTT Client to test device subscription to "Nucleo/test". Just publish any message to this topic and serial port output.
PROFIT!

X_NUCLEO_IDW01M1v2/SpwfInterface.h@0:4cdaf9b1e7d0, 2017-09-27 (annotated)

Committer:: PavelSavyhin
Date:: Wed Sep 27 14:40:52 2017 +0300
Revision:: 0:4cdaf9b1e7d0
Child:: 1:042ca9148926

Initial commit

Who changed what in which revision?

User	Revision	Line number	New contents of line
PavelSavyhin	0:4cdaf9b1e7d0	1	/* mbed Microcontroller Library
PavelSavyhin	0:4cdaf9b1e7d0	2	* Copyright (c) 20015 ARM Limited
PavelSavyhin	0:4cdaf9b1e7d0	3	*
PavelSavyhin	0:4cdaf9b1e7d0	4	* Licensed under the Apache License, Version 2.0 (the "License");
PavelSavyhin	0:4cdaf9b1e7d0	5	* you may not use this file except in compliance with the License.
PavelSavyhin	0:4cdaf9b1e7d0	6	* You may obtain a copy of the License at
PavelSavyhin	0:4cdaf9b1e7d0	7	*
PavelSavyhin	0:4cdaf9b1e7d0	8	* http://www.apache.org/licenses/LICENSE-2.0
PavelSavyhin	0:4cdaf9b1e7d0	9	*
PavelSavyhin	0:4cdaf9b1e7d0	10	* Unless required by applicable law or agreed to in writing, software
PavelSavyhin	0:4cdaf9b1e7d0	11	* distributed under the License is distributed on an "AS IS" BASIS,
PavelSavyhin	0:4cdaf9b1e7d0	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
PavelSavyhin	0:4cdaf9b1e7d0	13	* See the License for the specific language governing permissions and
PavelSavyhin	0:4cdaf9b1e7d0	14	* limitations under the License.
PavelSavyhin	0:4cdaf9b1e7d0	15	*/
PavelSavyhin	0:4cdaf9b1e7d0	16
PavelSavyhin	0:4cdaf9b1e7d0	17	/**
PavelSavyhin	0:4cdaf9b1e7d0	18	******************************************************************************
PavelSavyhin	0:4cdaf9b1e7d0	19	* @file SpwfInterface.h
PavelSavyhin	0:4cdaf9b1e7d0	20	* @author STMicroelectronics
PavelSavyhin	0:4cdaf9b1e7d0	21	* @brief Header file of the NetworkStack for the SPWF Device
PavelSavyhin	0:4cdaf9b1e7d0	22	******************************************************************************
PavelSavyhin	0:4cdaf9b1e7d0	23	* @copy
PavelSavyhin	0:4cdaf9b1e7d0	24	*
PavelSavyhin	0:4cdaf9b1e7d0	25	* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
PavelSavyhin	0:4cdaf9b1e7d0	26	* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
PavelSavyhin	0:4cdaf9b1e7d0	27	* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
PavelSavyhin	0:4cdaf9b1e7d0	28	* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
PavelSavyhin	0:4cdaf9b1e7d0	29	* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
PavelSavyhin	0:4cdaf9b1e7d0	30	* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
PavelSavyhin	0:4cdaf9b1e7d0	31	*
PavelSavyhin	0:4cdaf9b1e7d0	32	* <h2><center>© COPYRIGHT 2016 STMicroelectronics</center></h2>
PavelSavyhin	0:4cdaf9b1e7d0	33	******************************************************************************
PavelSavyhin	0:4cdaf9b1e7d0	34	*/
PavelSavyhin	0:4cdaf9b1e7d0	35
PavelSavyhin	0:4cdaf9b1e7d0	36	#ifndef SPWFSA_INTERFACE_H
PavelSavyhin	0:4cdaf9b1e7d0	37	#define SPWFSA_INTERFACE_H
PavelSavyhin	0:4cdaf9b1e7d0	38
PavelSavyhin	0:4cdaf9b1e7d0	39	#include "WiFiInterface.h"
PavelSavyhin	0:4cdaf9b1e7d0	40	#include "SPWFSA01.h"
PavelSavyhin	0:4cdaf9b1e7d0	41
PavelSavyhin	0:4cdaf9b1e7d0	42	#define SPWFSA_SOCKET_COUNT 8
PavelSavyhin	0:4cdaf9b1e7d0	43	#define SERVER_SOCKET_NO 9
PavelSavyhin	0:4cdaf9b1e7d0	44
PavelSavyhin	0:4cdaf9b1e7d0	45	/** SpwfSAInterface class
PavelSavyhin	0:4cdaf9b1e7d0	46	* Implementation of the NetworkStack for the SPWF Device
PavelSavyhin	0:4cdaf9b1e7d0	47	*/
PavelSavyhin	0:4cdaf9b1e7d0	48	class SpwfSAInterface : public NetworkStack, public WiFiInterface
PavelSavyhin	0:4cdaf9b1e7d0	49	{
PavelSavyhin	0:4cdaf9b1e7d0	50	public:
PavelSavyhin	0:4cdaf9b1e7d0	51	SpwfSAInterface(PinName tx, PinName rx, bool debug);
PavelSavyhin	0:4cdaf9b1e7d0	52	SpwfSAInterface(PinName tx, PinName rx, PinName reset = PC_12, PinName wakeup = PC_8, bool debug = false);
PavelSavyhin	0:4cdaf9b1e7d0	53	virtual ~SpwfSAInterface();
PavelSavyhin	0:4cdaf9b1e7d0	54
PavelSavyhin	0:4cdaf9b1e7d0	55	// Implementation of WiFiInterface
PavelSavyhin	0:4cdaf9b1e7d0	56	virtual int connect(const char *ssid,
PavelSavyhin	0:4cdaf9b1e7d0	57	const char *pass,
PavelSavyhin	0:4cdaf9b1e7d0	58	nsapi_security_t security = NSAPI_SECURITY_NONE);
PavelSavyhin	0:4cdaf9b1e7d0	59
PavelSavyhin	0:4cdaf9b1e7d0	60	inline int setSocketClientSecurity(uint8_t* tls_mode, uint8_t* root_ca_server, uint8_t* client_cert, uint8_t* client_key, uint8_t* client_domain, uint32_t tls_epoch_time)
PavelSavyhin	0:4cdaf9b1e7d0	61	{
PavelSavyhin	0:4cdaf9b1e7d0	62	return _spwf.setSocketClientSecurity(tls_mode, root_ca_server, client_cert, client_key, client_domain, tls_epoch_time);
PavelSavyhin	0:4cdaf9b1e7d0	63	}
PavelSavyhin	0:4cdaf9b1e7d0	64
PavelSavyhin	0:4cdaf9b1e7d0	65	virtual int disconnect();
PavelSavyhin	0:4cdaf9b1e7d0	66	virtual const char *get_mac_address();
PavelSavyhin	0:4cdaf9b1e7d0	67	void debug(const char * string);
PavelSavyhin	0:4cdaf9b1e7d0	68	inline bool reset_chip() {return _spwf.hw_reset();};
PavelSavyhin	0:4cdaf9b1e7d0	69
PavelSavyhin	0:4cdaf9b1e7d0	70	//Implementation of NetworkStack
PavelSavyhin	0:4cdaf9b1e7d0	71	virtual const char *get_ip_address();
PavelSavyhin	0:4cdaf9b1e7d0	72
PavelSavyhin	0:4cdaf9b1e7d0	73	protected:
PavelSavyhin	0:4cdaf9b1e7d0	74	//Implementation of NetworkStack
PavelSavyhin	0:4cdaf9b1e7d0	75	virtual int socket_open(void **handle, nsapi_protocol_t proto);
PavelSavyhin	0:4cdaf9b1e7d0	76	virtual int socket_close(void *handle);
PavelSavyhin	0:4cdaf9b1e7d0	77	virtual int socket_bind(void *handle, const SocketAddress &address); //not supported
PavelSavyhin	0:4cdaf9b1e7d0	78	virtual int socket_listen(void *handle, int backlog);
PavelSavyhin	0:4cdaf9b1e7d0	79	virtual int socket_connect(void *handle, const SocketAddress &address);
PavelSavyhin	0:4cdaf9b1e7d0	80	virtual int socket_accept(void *handle, void server);
PavelSavyhin	0:4cdaf9b1e7d0	81	virtual int socket_send(void handle, const void data, unsigned size);
PavelSavyhin	0:4cdaf9b1e7d0	82	virtual int socket_recv(void handle, void data, unsigned size);
PavelSavyhin	0:4cdaf9b1e7d0	83	virtual int socket_sendto(void handle, const SocketAddress &address, const void data, unsigned size);
PavelSavyhin	0:4cdaf9b1e7d0	84	virtual int socket_recvfrom(void handle, SocketAddress address, void *buffer, unsigned size);
PavelSavyhin	0:4cdaf9b1e7d0	85	virtual void socket_attach(void handle, void (callback)(void ), void data);
PavelSavyhin	0:4cdaf9b1e7d0	86	virtual int setsockopt(void handle, int level, int optname, const void optval, unsigned optlen);
PavelSavyhin	0:4cdaf9b1e7d0	87	virtual int getsockopt(void handle, int level, int optname, void optval, unsigned *optlen);
PavelSavyhin	0:4cdaf9b1e7d0	88
PavelSavyhin	0:4cdaf9b1e7d0	89	private:
PavelSavyhin	0:4cdaf9b1e7d0	90	int init(void);
PavelSavyhin	0:4cdaf9b1e7d0	91
PavelSavyhin	0:4cdaf9b1e7d0	92	SPWFSA01 _spwf;
PavelSavyhin	0:4cdaf9b1e7d0	93	bool _ids[SPWFSA_SOCKET_COUNT];
PavelSavyhin	0:4cdaf9b1e7d0	94	bool isListening;
PavelSavyhin	0:4cdaf9b1e7d0	95	bool isInitialized;
PavelSavyhin	0:4cdaf9b1e7d0	96	};
PavelSavyhin	0:4cdaf9b1e7d0	97
PavelSavyhin	0:4cdaf9b1e7d0	98
PavelSavyhin	0:4cdaf9b1e7d0	99	#endif

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Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	27 Sep 2017
Imports:	341
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	6
Followers:	8

The code in this repository is Apache licensed.

Introduction

Hardware Configuration

Software Configuration

WiFi network credential

Information

Build and Check

Information

X_NUCLEO_IDW01M1v2/SpwfInterface.h@0:4cdaf9b1e7d0, 2017-09-27 (annotated)

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