yh Tang
NuMaker connection with AWS IoT thru MQTT/HTTPS
README.md@1:5ffad9f24d63, 2018-01-04 (annotated)
- Committer:
- ccli8
- Date:
- Thu Jan 04 13:09:45 2018 +0800
- Revision:
- 1:5ffad9f24d63
- Child:
- 4:dc23eeba885a
Support AWS IoT MQTT/HTTPS protocol
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| ccli8 |
1:5ffad9f24d63 | 1 | # Example for Connection with AWS IoT thru MQTT/HTTPS on Mbed OS |
| ccli8 |
1:5ffad9f24d63 | 2 | |
| ccli8 |
1:5ffad9f24d63 | 3 | This is an example to demonstrate connection with [AWS IoT](https://aws.amazon.com/iot) |
| ccli8 |
1:5ffad9f24d63 | 4 | on Nuvoton Mbed-enabled boards. |
| ccli8 |
1:5ffad9f24d63 | 5 | |
| ccli8 |
1:5ffad9f24d63 | 6 | ## Supported platforms |
| ccli8 |
1:5ffad9f24d63 | 7 | On Mbed OS, connection with AWS IoT requires Mbed TLS. It requires more than 64 KB RAM. |
| ccli8 |
1:5ffad9f24d63 | 8 | Currently, the following Nuvoton Mbed-enalbed boards can afford such memory footprint: |
| ccli8 |
1:5ffad9f24d63 | 9 | - [NuMaker-PFM-NUC472](https://developer.mbed.org/platforms/Nuvoton-NUC472/) |
| ccli8 |
1:5ffad9f24d63 | 10 | - [NuMaker-PFM-M487](https://developer.mbed.org/platforms/NUMAKER-PFM-M487/) |
| ccli8 |
1:5ffad9f24d63 | 11 | |
| ccli8 |
1:5ffad9f24d63 | 12 | ## Access and manage AWS IoT Service |
| ccli8 |
1:5ffad9f24d63 | 13 | To run the example, you need to register one [AWS account](https://aws.amazon.com/) |
| ccli8 |
1:5ffad9f24d63 | 14 | to access and manage AWS IoT Service for your device to connect with. |
| ccli8 |
1:5ffad9f24d63 | 15 | This [link](https://docs.aws.amazon.com/iot/latest/developerguide/what-is-aws-iot.html) gives detailed |
| ccli8 |
1:5ffad9f24d63 | 16 | information about it. |
| ccli8 |
1:5ffad9f24d63 | 17 | |
| ccli8 |
1:5ffad9f24d63 | 18 | 1. Sign in to [AWS Management Console](https://aws.amazon.com/console/). |
| ccli8 |
1:5ffad9f24d63 | 19 | 1. Enter AWS IoT Service. |
| ccli8 |
1:5ffad9f24d63 | 20 | 1. In AWS IoT Service, create a thing. |
| ccli8 |
1:5ffad9f24d63 | 21 | The Console may prompt you to also create a certificate and a policy. Skip for creating them later. |
| ccli8 |
1:5ffad9f24d63 | 22 | 1. In AWS IoT Service, create a policy. A workable example would be below. |
| ccli8 |
1:5ffad9f24d63 | 23 | Note that you need to replace **REGION** and **ACCOUNT** to match your case. |
| ccli8 |
1:5ffad9f24d63 | 24 | |
| ccli8 |
1:5ffad9f24d63 | 25 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 26 | { |
| ccli8 |
1:5ffad9f24d63 | 27 | "Version": "2012-10-17", |
| ccli8 |
1:5ffad9f24d63 | 28 | "Statement": [ |
| ccli8 |
1:5ffad9f24d63 | 29 | { |
| ccli8 |
1:5ffad9f24d63 | 30 | "Effect": "Allow", |
| ccli8 |
1:5ffad9f24d63 | 31 | "Action": "iot:Connect", |
| ccli8 |
1:5ffad9f24d63 | 32 | "Resource": "arn:aws:iot:<b>REGION</b>:<b>ACCOUNT</b>:client/*" |
| ccli8 |
1:5ffad9f24d63 | 33 | }, |
| ccli8 |
1:5ffad9f24d63 | 34 | { |
| ccli8 |
1:5ffad9f24d63 | 35 | "Effect": "Allow", |
| ccli8 |
1:5ffad9f24d63 | 36 | "Action": "iot:Subscribe", |
| ccli8 |
1:5ffad9f24d63 | 37 | "Resource": ["arn:aws:iot:<b>REGION</b>:<b>ACCOUNT</b>:topicfilter/*"] |
| ccli8 |
1:5ffad9f24d63 | 38 | }, |
| ccli8 |
1:5ffad9f24d63 | 39 | { |
| ccli8 |
1:5ffad9f24d63 | 40 | "Effect": "Allow", |
| ccli8 |
1:5ffad9f24d63 | 41 | "Action": ["iot:Publish", "iot:Receive"], |
| ccli8 |
1:5ffad9f24d63 | 42 | "Resource": "arn:aws:iot:<b>REGION</b>:<b>ACCOUNT</b>:topic/*" |
| ccli8 |
1:5ffad9f24d63 | 43 | }, |
| ccli8 |
1:5ffad9f24d63 | 44 | { |
| ccli8 |
1:5ffad9f24d63 | 45 | "Effect": "Allow", |
| ccli8 |
1:5ffad9f24d63 | 46 | "Action": ["iot:UpdateThingShadow", "iot:GetThingShadow", "iot:DeleteThingShadow"], |
| ccli8 |
1:5ffad9f24d63 | 47 | "Resource": "arn:aws:iot:<b>REGION</b>:<b>ACCOUNT</b>:thing/*" |
| ccli8 |
1:5ffad9f24d63 | 48 | } |
| ccli8 |
1:5ffad9f24d63 | 49 | ] |
| ccli8 |
1:5ffad9f24d63 | 50 | } |
| ccli8 |
1:5ffad9f24d63 | 51 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 52 | |
| ccli8 |
1:5ffad9f24d63 | 53 | 1. In AWS IoT Service, create a certificate. You would get 4 security credential files from it. |
| ccli8 |
1:5ffad9f24d63 | 54 | Download them for later use. |
| ccli8 |
1:5ffad9f24d63 | 55 | - AWS IoT's CA certificate |
| ccli8 |
1:5ffad9f24d63 | 56 | - User certificate |
| ccli8 |
1:5ffad9f24d63 | 57 | - User private key |
| ccli8 |
1:5ffad9f24d63 | 58 | - User public key |
| ccli8 |
1:5ffad9f24d63 | 59 | |
| ccli8 |
1:5ffad9f24d63 | 60 | After creating the certificate, do: |
| ccli8 |
1:5ffad9f24d63 | 61 | 1. Activate the certificate |
| ccli8 |
1:5ffad9f24d63 | 62 | 1. Attach the thing created above to the certificate |
| ccli8 |
1:5ffad9f24d63 | 63 | 1. Attach the policy created above to the certificate |
| ccli8 |
1:5ffad9f24d63 | 64 | |
| ccli8 |
1:5ffad9f24d63 | 65 | ## Configure your device with AWS IoT |
| ccli8 |
1:5ffad9f24d63 | 66 | Before connecting your device with AWS IoT, you need to configure security credential and |
| ccli8 |
1:5ffad9f24d63 | 67 | protocol dependent parameters into your device. These configurations are all centralized in `main.cpp`. |
| ccli8 |
1:5ffad9f24d63 | 68 | |
| ccli8 |
1:5ffad9f24d63 | 69 | ### Configure certificate into your device |
| ccli8 |
1:5ffad9f24d63 | 70 | From above, you've got 4 security credential files: CA certificate and user certificate/private key/public key. |
| ccli8 |
1:5ffad9f24d63 | 71 | Configure CA certificate, user certificate, and user private key into your device. |
| ccli8 |
1:5ffad9f24d63 | 72 | User public key has been included in user certificate and is not used here. |
| ccli8 |
1:5ffad9f24d63 | 73 | 1. Replace CA certificate with downloaded from the Console. |
| ccli8 |
1:5ffad9f24d63 | 74 | ``` |
| ccli8 |
1:5ffad9f24d63 | 75 | const char SSL_CA_CERT_PEM[] = "-----BEGIN CERTIFICATE-----\n" |
| ccli8 |
1:5ffad9f24d63 | 76 | "MIIE0zCCA7ugAwIBAgIQGNrRniZ96LtKIVjNzGs7SjANBgkqhkiG9w0BAQUFADCB\n" |
| ccli8 |
1:5ffad9f24d63 | 77 | "yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL\n" |
| ccli8 |
1:5ffad9f24d63 | 78 | ``` |
| ccli8 |
1:5ffad9f24d63 | 79 | |
| ccli8 |
1:5ffad9f24d63 | 80 | 1. Replace user certificate with downloaded from the Console. |
| ccli8 |
1:5ffad9f24d63 | 81 | ``` |
| ccli8 |
1:5ffad9f24d63 | 82 | const char SSL_USER_CERT_PEM[] = "-----BEGIN CERTIFICATE-----\n" |
| ccli8 |
1:5ffad9f24d63 | 83 | "MIIDWjCCAkKgAwIBAgIVALN/H7tr8cgpl2zwg0JjEE106XilMA0GCSqGSIb3DQEB\n" |
| ccli8 |
1:5ffad9f24d63 | 84 | "CwUAME0xSzBJBgNVBAsMQkFtYXpvbiBXZWIgU2VydmljZXMgTz1BbWF6b24uY29t\n" |
| ccli8 |
1:5ffad9f24d63 | 85 | ``` |
| ccli8 |
1:5ffad9f24d63 | 86 | |
| ccli8 |
1:5ffad9f24d63 | 87 | 1. Replace user private key with downloaded from the Console. |
| ccli8 |
1:5ffad9f24d63 | 88 | ``` |
| ccli8 |
1:5ffad9f24d63 | 89 | const char SSL_USER_PRIV_KEY_PEM[] = "-----BEGIN RSA PRIVATE KEY-----\n" |
| ccli8 |
1:5ffad9f24d63 | 90 | ``` |
| ccli8 |
1:5ffad9f24d63 | 91 | |
| ccli8 |
1:5ffad9f24d63 | 92 | ### Connect through MQTT |
| ccli8 |
1:5ffad9f24d63 | 93 | To connect your device with AWS IoT through MQTT, you need to configure the following parameters. |
| ccli8 |
1:5ffad9f24d63 | 94 | |
| ccli8 |
1:5ffad9f24d63 | 95 | 1. Enable connection through MQTT. |
| ccli8 |
1:5ffad9f24d63 | 96 | ``` |
| ccli8 |
1:5ffad9f24d63 | 97 | #define AWS_IOT_MQTT_TEST 1 |
| ccli8 |
1:5ffad9f24d63 | 98 | ``` |
| ccli8 |
1:5ffad9f24d63 | 99 | |
| ccli8 |
1:5ffad9f24d63 | 100 | 1. Replace server name (endpoint). **Endpoint** has the following format and you just |
| ccli8 |
1:5ffad9f24d63 | 101 | need to modify **IDENTIFIER** and **REGION** to match your case. |
| ccli8 |
1:5ffad9f24d63 | 102 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 103 | #define AWS_IOT_MQTT_SERVER_NAME "<b>IDENTIFIER</b>.iot.<b>REGION</b>.amazonaws.com" |
| ccli8 |
1:5ffad9f24d63 | 104 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 105 | |
| ccli8 |
1:5ffad9f24d63 | 106 | 1. Server port number is fixed. Don't change it. |
| ccli8 |
1:5ffad9f24d63 | 107 | ``` |
| ccli8 |
1:5ffad9f24d63 | 108 | #define AWS_IOT_MQTT_SERVER_PORT 8883 |
| ccli8 |
1:5ffad9f24d63 | 109 | ``` |
| ccli8 |
1:5ffad9f24d63 | 110 | |
| ccli8 |
1:5ffad9f24d63 | 111 | 1. Replace **THINGNAME** to match your case. The **THINGNAME** is just the name of the thing you've created above. |
| ccli8 |
1:5ffad9f24d63 | 112 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 113 | #define AWS_IOT_MQTT_THINGNAME "<b>THINGNAME</b>" |
| ccli8 |
1:5ffad9f24d63 | 114 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 115 | |
| ccli8 |
1:5ffad9f24d63 | 116 | 1. Replace **CLIENTNAME** to match your case. If you adopt the example policy above, |
| ccli8 |
1:5ffad9f24d63 | 117 | you can modify it arbitrarily because the policy permits any client name bound to your account. |
| ccli8 |
1:5ffad9f24d63 | 118 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 119 | #define AWS_IOT_MQTT_CLIENTNAME "<b>CLIENTNAME</b>" |
| ccli8 |
1:5ffad9f24d63 | 120 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 121 | |
| ccli8 |
1:5ffad9f24d63 | 122 | AWS IoT MQTT protocol supports topic subscribe/publish. The example demonstrates: |
| ccli8 |
1:5ffad9f24d63 | 123 | - Subscribe/publish with user topic |
| ccli8 |
1:5ffad9f24d63 | 124 | - Subscribe/publish with reserved topic (starting with $) to: |
| ccli8 |
1:5ffad9f24d63 | 125 | - Update thing shadow |
| ccli8 |
1:5ffad9f24d63 | 126 | - Get thing shadow |
| ccli8 |
1:5ffad9f24d63 | 127 | - Delete thing shadow |
| ccli8 |
1:5ffad9f24d63 | 128 | |
| ccli8 |
1:5ffad9f24d63 | 129 | ### Connect through HTTPS |
| ccli8 |
1:5ffad9f24d63 | 130 | To connect your device with AWS IoT through HTTPS, you need to configure the following parameters. |
| ccli8 |
1:5ffad9f24d63 | 131 | |
| ccli8 |
1:5ffad9f24d63 | 132 | 1. Enable connection through HTTPS. |
| ccli8 |
1:5ffad9f24d63 | 133 | ``` |
| ccli8 |
1:5ffad9f24d63 | 134 | #define AWS_IOT_HTTPS_TEST 1 |
| ccli8 |
1:5ffad9f24d63 | 135 | ``` |
| ccli8 |
1:5ffad9f24d63 | 136 | |
| ccli8 |
1:5ffad9f24d63 | 137 | 1. Replace server name (endpoint). **Endpoint** has the following format and you just |
| ccli8 |
1:5ffad9f24d63 | 138 | need to modify **IDENTIFIER** and **REGION** to match your case. |
| ccli8 |
1:5ffad9f24d63 | 139 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 140 | #define AWS_IOT_HTTPS_SERVER_NAME "<b>IDENTIFIER</b>.iot.<b>REGION</b>.amazonaws.com" |
| ccli8 |
1:5ffad9f24d63 | 141 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 142 | |
| ccli8 |
1:5ffad9f24d63 | 143 | 1. Server port number is fixed. Don't change it. |
| ccli8 |
1:5ffad9f24d63 | 144 | ``` |
| ccli8 |
1:5ffad9f24d63 | 145 | #define AWS_IOT_HTTPS_SERVER_PORT 8443 |
| ccli8 |
1:5ffad9f24d63 | 146 | ``` |
| ccli8 |
1:5ffad9f24d63 | 147 | |
| ccli8 |
1:5ffad9f24d63 | 148 | 1. Replace **THINGNAME** to match your case. The **THINGNAME** is just the name of the thing you've created above. |
| ccli8 |
1:5ffad9f24d63 | 149 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 150 | #define AWS_IOT_HTTPS_THINGNAME "<b>THINGNAME</b>" |
| ccli8 |
1:5ffad9f24d63 | 151 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 152 | |
| ccli8 |
1:5ffad9f24d63 | 153 | AWS IoT HTTPS protocol supports topic publish-only and RESTful API. The example demonstrates: |
| ccli8 |
1:5ffad9f24d63 | 154 | - Publish to user topic |
| ccli8 |
1:5ffad9f24d63 | 155 | - Publish to reserved topic (starting with $) to: |
| ccli8 |
1:5ffad9f24d63 | 156 | - Update thing shadow |
| ccli8 |
1:5ffad9f24d63 | 157 | - Get thing shadow |
| ccli8 |
1:5ffad9f24d63 | 158 | - Delete thing shadow |
| ccli8 |
1:5ffad9f24d63 | 159 | - RESTful API to: |
| ccli8 |
1:5ffad9f24d63 | 160 | - Update thing shadow RESTfully through HTTPS/POST method |
| ccli8 |
1:5ffad9f24d63 | 161 | - Get thing shadow RESTfully through HTTPS/GET method |
| ccli8 |
1:5ffad9f24d63 | 162 | - Delete thing shadow RESTfully through HTTPS/DELETE method |
| ccli8 |
1:5ffad9f24d63 | 163 | |
| ccli8 |
1:5ffad9f24d63 | 164 | ## Patch MQTT library |
| ccli8 |
1:5ffad9f24d63 | 165 | Currently, MQTT library has one issue with unsubscribe from topic multiple times. Fix it: |
| ccli8 |
1:5ffad9f24d63 | 166 | |
| ccli8 |
1:5ffad9f24d63 | 167 | In `MQTT/MQTTClient.h` > `MQTT::Client<Network, Timer, MAX_MQTT_PACKET_SIZE, b>::cycle`, |
| ccli8 |
1:5ffad9f24d63 | 168 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 169 | switch (packet_type) |
| ccli8 |
1:5ffad9f24d63 | 170 | { |
| ccli8 |
1:5ffad9f24d63 | 171 | default: |
| ccli8 |
1:5ffad9f24d63 | 172 | // no more data to read, unrecoverable. Or read packet fails due to unexpected network error |
| ccli8 |
1:5ffad9f24d63 | 173 | rc = packet_type; |
| ccli8 |
1:5ffad9f24d63 | 174 | goto exit; |
| ccli8 |
1:5ffad9f24d63 | 175 | case 0: // timed out reading packet |
| ccli8 |
1:5ffad9f24d63 | 176 | break; |
| ccli8 |
1:5ffad9f24d63 | 177 | case CONNACK: |
| ccli8 |
1:5ffad9f24d63 | 178 | case PUBACK: |
| ccli8 |
1:5ffad9f24d63 | 179 | case SUBACK: |
| ccli8 |
1:5ffad9f24d63 | 180 | <b> |
| ccli8 |
1:5ffad9f24d63 | 181 | case UNSUBACK: |
| ccli8 |
1:5ffad9f24d63 | 182 | </b> |
| ccli8 |
1:5ffad9f24d63 | 183 | break; |
| ccli8 |
1:5ffad9f24d63 | 184 | case PUBLISH: |
| ccli8 |
1:5ffad9f24d63 | 185 | { |
| ccli8 |
1:5ffad9f24d63 | 186 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 187 | |
| ccli8 |
1:5ffad9f24d63 | 188 | ## Monitor the application |
| ccli8 |
1:5ffad9f24d63 | 189 | If you configure your terminal program with **9600/8-N-1**, you would see output similar to: |
| ccli8 |
1:5ffad9f24d63 | 190 | |
| ccli8 |
1:5ffad9f24d63 | 191 | **NOTE:** Make sure that the network is functional before running the application. |
| ccli8 |
1:5ffad9f24d63 | 192 | |
| ccli8 |
1:5ffad9f24d63 | 193 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 194 | Starting AWS IoT test |
| ccli8 |
1:5ffad9f24d63 | 195 | Using Mbed OS 5.7.1 |
| ccli8 |
1:5ffad9f24d63 | 196 | [EasyConnect] IPv4 mode |
| ccli8 |
1:5ffad9f24d63 | 197 | Connecting with a1fbcwaqfqeozo.iot.us-east-1.amazonaws.com:8883 |
| ccli8 |
1:5ffad9f24d63 | 198 | Connecting to a1fbcwaqfqeozo.iot.us-east-1.amazonaws.com:8883 |
| ccli8 |
1:5ffad9f24d63 | 199 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 200 | |
| ccli8 |
1:5ffad9f24d63 | 201 | If you get here successfully, it means configurations with security credential are correct. |
| ccli8 |
1:5ffad9f24d63 | 202 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 203 | Starting the TLS handshake... |
| ccli8 |
1:5ffad9f24d63 | 204 | TLS connection to a1fbcwaqfqeozo.iot.us-east-1.amazonaws.com:8883 established |
| ccli8 |
1:5ffad9f24d63 | 205 | Server certificate: |
| ccli8 |
1:5ffad9f24d63 | 206 | cert. version : 3 |
| ccli8 |
1:5ffad9f24d63 | 207 | serial number : 3C:AC:B3:D3:3E:D8:6A:C9:2B:EF:D2:C5:B1:DC:BF:66 |
| ccli8 |
1:5ffad9f24d63 | 208 | issuer name : C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 ECC 256 bit SSL CA - G2 |
| ccli8 |
1:5ffad9f24d63 | 209 | subject name : C=US, ST=Washington, L=Seattle, O=Amazon.com, Inc., CN=*.iot.us-east-1.amazonaws.com |
| ccli8 |
1:5ffad9f24d63 | 210 | issued on : 2017-03-07 00:00:00 |
| ccli8 |
1:5ffad9f24d63 | 211 | expires on : 2018-03-08 23:59:59 |
| ccli8 |
1:5ffad9f24d63 | 212 | signed using : ECDSA with SHA256 |
| ccli8 |
1:5ffad9f24d63 | 213 | EC key size : 256 bits |
| ccli8 |
1:5ffad9f24d63 | 214 | basic constraints : CA=false |
| ccli8 |
1:5ffad9f24d63 | 215 | subject alt name : iot.us-east-1.amazonaws.com, *.iot.us-east-1.amazonaws.com |
| ccli8 |
1:5ffad9f24d63 | 216 | key usage : Digital Signature |
| ccli8 |
1:5ffad9f24d63 | 217 | ext key usage : TLS Web Server Authentication, TLS Web Client Authentication |
| ccli8 |
1:5ffad9f24d63 | 218 | Certificate verification passed |
| ccli8 |
1:5ffad9f24d63 | 219 | |
| ccli8 |
1:5ffad9f24d63 | 220 | Connects with a1fbcwaqfqeozo.iot.us-east-1.amazonaws.com:8883 OK |
| ccli8 |
1:5ffad9f24d63 | 221 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 222 | |
| ccli8 |
1:5ffad9f24d63 | 223 | MQTT handshake goes: |
| ccli8 |
1:5ffad9f24d63 | 224 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 225 | MQTT connects OK |
| ccli8 |
1:5ffad9f24d63 | 226 | |
| ccli8 |
1:5ffad9f24d63 | 227 | Subscribing/publishing user topic |
| ccli8 |
1:5ffad9f24d63 | 228 | MQTT subscribes to Nuvoton/Mbed/+ OK |
| ccli8 |
1:5ffad9f24d63 | 229 | Message to publish: |
| ccli8 |
1:5ffad9f24d63 | 230 | { "message": "Hello from Nuvoton Mbed device" } |
| ccli8 |
1:5ffad9f24d63 | 231 | MQTT publishes message to Nuvoton/Mbed/D001 OK |
| ccli8 |
1:5ffad9f24d63 | 232 | Message arrived: qos 1, retained 0, dup 0, packetid 1 |
| ccli8 |
1:5ffad9f24d63 | 233 | Payload: |
| ccli8 |
1:5ffad9f24d63 | 234 | { "message": "Hello from Nuvoton Mbed device" } |
| ccli8 |
1:5ffad9f24d63 | 235 | |
| ccli8 |
1:5ffad9f24d63 | 236 | MQTT unsubscribes from Nuvoton/Mbed/+ OK |
| ccli8 |
1:5ffad9f24d63 | 237 | Subscribes/publishes user topic OK |
| ccli8 |
1:5ffad9f24d63 | 238 | |
| ccli8 |
1:5ffad9f24d63 | 239 | Subscribing/publishing UpdateThingShadow topic |
| ccli8 |
1:5ffad9f24d63 | 240 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/update/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 241 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/update/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 242 | Message to publish: |
| ccli8 |
1:5ffad9f24d63 | 243 | { "state": { "reported": { "attribute1": 3, "attribute2": "1" } } } |
| ccli8 |
1:5ffad9f24d63 | 244 | MQTT publishes message to $aws/things/Nuvoton-Mbed-D001/shadow/update OK |
| ccli8 |
1:5ffad9f24d63 | 245 | Message arrived: qos 1, retained 0, dup 0, packetid 1 |
| ccli8 |
1:5ffad9f24d63 | 246 | Payload: |
| ccli8 |
1:5ffad9f24d63 | 247 | {"state":{"reported":{"attribute1":3,"attribute2":"1"}},"metadata":{"reported":{"attribute1":{"timestamp":1514962195},"attribute2":{"timestamp":1514962195}}},"version":77,"timestamp":1514962195} |
| ccli8 |
1:5ffad9f24d63 | 248 | |
| ccli8 |
1:5ffad9f24d63 | 249 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/update/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 250 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/update/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 251 | Subscribes/publishes UpdateThingShadow topic OK |
| ccli8 |
1:5ffad9f24d63 | 252 | |
| ccli8 |
1:5ffad9f24d63 | 253 | Subscribing/publishing GetThingShadow topic |
| ccli8 |
1:5ffad9f24d63 | 254 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/get/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 255 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/get/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 256 | Message to publish: |
| ccli8 |
1:5ffad9f24d63 | 257 | |
| ccli8 |
1:5ffad9f24d63 | 258 | MQTT publishes message to $aws/things/Nuvoton-Mbed-D001/shadow/get OK |
| ccli8 |
1:5ffad9f24d63 | 259 | Message arrived: qos 1, retained 0, dup 0, packetid 1 |
| ccli8 |
1:5ffad9f24d63 | 260 | Payload: |
| ccli8 |
1:5ffad9f24d63 | 261 | {"state":{"reported":{"attribute1":3,"attribute2":"1"}},"metadata":{"reported":{"attribute1":{"timestamp":1514962195},"attribute2":{"timestamp":1514962195}}},"version":77,"timestamp":1514962198} |
| ccli8 |
1:5ffad9f24d63 | 262 | |
| ccli8 |
1:5ffad9f24d63 | 263 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/get/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 264 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/get/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 265 | Subscribes/publishes GetThingShadow topic OK |
| ccli8 |
1:5ffad9f24d63 | 266 | |
| ccli8 |
1:5ffad9f24d63 | 267 | Subscribing/publishing DeleteThingShadow topic |
| ccli8 |
1:5ffad9f24d63 | 268 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/delete/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 269 | MQTT subscribes to $aws/things/Nuvoton-Mbed-D001/shadow/delete/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 270 | Message to publish: |
| ccli8 |
1:5ffad9f24d63 | 271 | |
| ccli8 |
1:5ffad9f24d63 | 272 | MQTT publishes message to $aws/things/Nuvoton-Mbed-D001/shadow/delete OK |
| ccli8 |
1:5ffad9f24d63 | 273 | Message arrived: qos 1, retained 0, dup 0, packetid 1 |
| ccli8 |
1:5ffad9f24d63 | 274 | Payload: |
| ccli8 |
1:5ffad9f24d63 | 275 | {"version":77,"timestamp":1514962202} |
| ccli8 |
1:5ffad9f24d63 | 276 | |
| ccli8 |
1:5ffad9f24d63 | 277 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/delete/accepted OK |
| ccli8 |
1:5ffad9f24d63 | 278 | MQTT unsubscribes from $aws/things/Nuvoton-Mbed-D001/shadow/delete/rejected OK |
| ccli8 |
1:5ffad9f24d63 | 279 | Subscribes/publishes DeleteThingShadow topic OK |
| ccli8 |
1:5ffad9f24d63 | 280 | |
| ccli8 |
1:5ffad9f24d63 | 281 | MQTT disconnects OK |
| ccli8 |
1:5ffad9f24d63 | 282 | </pre> |
| ccli8 |
1:5ffad9f24d63 | 283 | |
| ccli8 |
1:5ffad9f24d63 | 284 | Dynamic memory footprint (heap) is output below. |
| ccli8 |
1:5ffad9f24d63 | 285 | Static memory footprint (global/stack) could be obtained by inspecting MAP file. |
| ccli8 |
1:5ffad9f24d63 | 286 | You could get total memory footprint by adding these two together. |
| ccli8 |
1:5ffad9f24d63 | 287 | <pre> |
| ccli8 |
1:5ffad9f24d63 | 288 | Current heap size: 1351 |
| ccli8 |
1:5ffad9f24d63 | 289 | Max heap size: 63022 |
| ccli8 |
1:5ffad9f24d63 | 290 | </pre> |