NXP / Mbed OS mbed-cloud-connect-example-ethernet

Simple Mbed Cloud client application using features of K64 & K66 including Ethernet and SD Card

Fork of mbed-cloud-example_K64_K66 by Mac Lobdell

DEPRECATED

This example application is not maintained and not recommended. It uses an old version of Mbed OS, Pelion DM, and Arm toolchain. It doesn't work with Mbed Studio.

Please use: https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-pelion/

main.cpp@24:1c8be247f7fe, 2018-10-12 (annotated)

Committer:
mmahadevan
Date:
Fri Oct 12 02:41:34 2018 +0000
Revision:
24:1c8be247f7fe
Parent:
18:49062a0d117e 
the sd-driver needs to be removed to avoid conflict with the driver that is in mbed-os now.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maclobdell 11:ae1f6fe932dc 1 // ----------------------------------------------------------------------------
maclobdell 11:ae1f6fe932dc 2 // Copyright 2016-2018 ARM Ltd.
maclobdell 11:ae1f6fe932dc 3 //
maclobdell 11:ae1f6fe932dc 4 // SPDX-License-Identifier: Apache-2.0
maclobdell 11:ae1f6fe932dc 5 //
maclobdell 11:ae1f6fe932dc 6 // Licensed under the Apache License, Version 2.0 (the "License");
maclobdell 11:ae1f6fe932dc 7 // you may not use this file except in compliance with the License.
maclobdell 11:ae1f6fe932dc 8 // You may obtain a copy of the License at
maclobdell 11:ae1f6fe932dc 9 //
maclobdell 11:ae1f6fe932dc 10 // http://www.apache.org/licenses/LICENSE-2.0
maclobdell 11:ae1f6fe932dc 11 //
maclobdell 11:ae1f6fe932dc 12 // Unless required by applicable law or agreed to in writing, software
maclobdell 11:ae1f6fe932dc 13 // distributed under the License is distributed on an "AS IS" BASIS,
maclobdell 11:ae1f6fe932dc 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
maclobdell 11:ae1f6fe932dc 15 // See the License for the specific language governing permissions and
maclobdell 11:ae1f6fe932dc 16 // limitations under the License.
maclobdell 11:ae1f6fe932dc 17 // ----------------------------------------------------------------------------
maclobdell 11:ae1f6fe932dc 18
maclobdell 11:ae1f6fe932dc 19 #include "mbed.h"
maclobdell 11:ae1f6fe932dc 20 #include "simple-mbed-cloud-client.h"
maclobdell 11:ae1f6fe932dc 21 #include "FATFileSystem.h"
maclobdell 11:ae1f6fe932dc 22
maclobdell 11:ae1f6fe932dc 23 // An event queue is a very useful structure to debounce information between contexts (e.g. ISR and normal threads)
maclobdell 11:ae1f6fe932dc 24 // This is great because things such as network operations are illegal in ISR, so updating a resource in a button's fall() function is not allowed
maclobdell 11:ae1f6fe932dc 25 EventQueue eventQueue;
maclobdell 11:ae1f6fe932dc 26 Thread thread1;
maclobdell 11:ae1f6fe932dc 27
maclobdell 18:49062a0d117e 28 // Default block device
maclobdell 18:49062a0d117e 29 BlockDevice* bd = BlockDevice::get_default_instance();
maclobdell 18:49062a0d117e 30 FATFileSystem fs("sd", bd);
maclobdell 18:49062a0d117e 31
maclobdell 18:49062a0d117e 32 // Default network interface object
maclobdell 18:49062a0d117e 33 NetworkInterface *net;
maclobdell 18:49062a0d117e 34
maclobdell 11:ae1f6fe932dc 35 InterruptIn sw2(SW2);
maclobdell 11:ae1f6fe932dc 36 DigitalOut led2(LED2);
maclobdell 11:ae1f6fe932dc 37
maclobdell 11:ae1f6fe932dc 38 // Declaring pointers for access to Mbed Cloud Client resources outside of main()
maclobdell 11:ae1f6fe932dc 39 MbedCloudClientResource *button_res;
maclobdell 11:ae1f6fe932dc 40 MbedCloudClientResource *pattern_res;
maclobdell 11:ae1f6fe932dc 41
maclobdell 11:ae1f6fe932dc 42 static bool button_pressed = false;
maclobdell 11:ae1f6fe932dc 43 static int button_count = 0;
maclobdell 11:ae1f6fe932dc 44
maclobdell 11:ae1f6fe932dc 45 void button_press() {
maclobdell 11:ae1f6fe932dc 46 button_pressed = true;
maclobdell 11:ae1f6fe932dc 47 ++button_count;
maclobdell 11:ae1f6fe932dc 48 button_res->set_value(button_count);
maclobdell 11:ae1f6fe932dc 49 }
maclobdell 11:ae1f6fe932dc 50
maclobdell 11:ae1f6fe932dc 51 /**
maclobdell 11:ae1f6fe932dc 52 * PUT handler
maclobdell 11:ae1f6fe932dc 53 * @param resource The resource that triggered the callback
maclobdell 11:ae1f6fe932dc 54 * @param newValue Updated value for the resource
maclobdell 11:ae1f6fe932dc 55 */
maclobdell 11:ae1f6fe932dc 56 void pattern_updated(MbedCloudClientResource *resource, m2m::String newValue) {
maclobdell 11:ae1f6fe932dc 57 printf("PUT received, new value: %s\n", newValue.c_str());
maclobdell 11:ae1f6fe932dc 58 }
maclobdell 11:ae1f6fe932dc 59
maclobdell 11:ae1f6fe932dc 60 /**
maclobdell 11:ae1f6fe932dc 61 * POST handler
maclobdell 11:ae1f6fe932dc 62 * @param resource The resource that triggered the callback
maclobdell 11:ae1f6fe932dc 63 * @param buffer If a body was passed to the POST function, this contains the data.
maclobdell 11:ae1f6fe932dc 64 * Note that the buffer is deallocated after leaving this function, so copy it if you need it longer.
maclobdell 11:ae1f6fe932dc 65 * @param size Size of the body
maclobdell 11:ae1f6fe932dc 66 */
maclobdell 11:ae1f6fe932dc 67 void blink_callback(MbedCloudClientResource *resource, const uint8_t *buffer, uint16_t size) {
maclobdell 11:ae1f6fe932dc 68 printf("POST received. Going to blink LED pattern: %s\n", pattern_res->get_value().c_str());
maclobdell 11:ae1f6fe932dc 69
maclobdell 11:ae1f6fe932dc 70 static DigitalOut augmentedLed(LED1); // LED that is used for blinking the pattern
maclobdell 11:ae1f6fe932dc 71
maclobdell 11:ae1f6fe932dc 72 // Parse the pattern string, and toggle the LED in that pattern
maclobdell 11:ae1f6fe932dc 73 string s = std::string(pattern_res->get_value().c_str());
maclobdell 11:ae1f6fe932dc 74 size_t i = 0;
maclobdell 11:ae1f6fe932dc 75 size_t pos = s.find(':');
maclobdell 11:ae1f6fe932dc 76 while (pos != string::npos) {
maclobdell 11:ae1f6fe932dc 77 wait_ms(atoi(s.substr(i, pos - i).c_str()));
maclobdell 11:ae1f6fe932dc 78 augmentedLed = !augmentedLed;
maclobdell 11:ae1f6fe932dc 79
maclobdell 11:ae1f6fe932dc 80 i = ++pos;
maclobdell 11:ae1f6fe932dc 81 pos = s.find(':', pos);
maclobdell 11:ae1f6fe932dc 82
maclobdell 11:ae1f6fe932dc 83 if (pos == string::npos) {
maclobdell 11:ae1f6fe932dc 84 wait_ms(atoi(s.substr(i, s.length()).c_str()));
maclobdell 11:ae1f6fe932dc 85 augmentedLed = !augmentedLed;
maclobdell 11:ae1f6fe932dc 86 }
maclobdell 11:ae1f6fe932dc 87 }
maclobdell 11:ae1f6fe932dc 88 }
maclobdell 11:ae1f6fe932dc 89
maclobdell 11:ae1f6fe932dc 90 /**
maclobdell 11:ae1f6fe932dc 91 * Notification callback handler
maclobdell 11:ae1f6fe932dc 92 * @param resource The resource that triggered the callback
maclobdell 11:ae1f6fe932dc 93 * @param status The delivery status of the notification
maclobdell 11:ae1f6fe932dc 94 */
maclobdell 11:ae1f6fe932dc 95 void button_callback(MbedCloudClientResource *resource, const NoticationDeliveryStatus status) {
maclobdell 11:ae1f6fe932dc 96 printf("Button notification, status %s (%d)\n", MbedCloudClientResource::delivery_status_to_string(status), status);
maclobdell 11:ae1f6fe932dc 97 }
maclobdell 11:ae1f6fe932dc 98
maclobdell 11:ae1f6fe932dc 99 /**
maclobdell 11:ae1f6fe932dc 100 * Registration callback handler
maclobdell 11:ae1f6fe932dc 101 * @param endpoint Information about the registered endpoint such as the name (so you can find it back in portal)
maclobdell 11:ae1f6fe932dc 102 */
maclobdell 11:ae1f6fe932dc 103 void registered(const ConnectorClientEndpointInfo *endpoint) {
maclobdell 11:ae1f6fe932dc 104 printf("Connected to Mbed Cloud. Endpoint Name: %s\n", endpoint->internal_endpoint_name.c_str());
maclobdell 11:ae1f6fe932dc 105 }
maclobdell 11:ae1f6fe932dc 106
maclobdell 11:ae1f6fe932dc 107 int main(void) {
maclobdell 11:ae1f6fe932dc 108 printf("Starting Simple Mbed Cloud Client example\n");
maclobdell 11:ae1f6fe932dc 109 printf("Connecting to the network using Ethernet...\n");
maclobdell 11:ae1f6fe932dc 110
maclobdell 11:ae1f6fe932dc 111 // Connect to the internet (DHCP is expected to be on)
maclobdell 18:49062a0d117e 112 net = NetworkInterface::get_default_instance();
maclobdell 11:ae1f6fe932dc 113
maclobdell 18:49062a0d117e 114 nsapi_error_t status = net->connect();
maclobdell 18:49062a0d117e 115
maclobdell 18:49062a0d117e 116 if (status != NSAPI_ERROR_OK) {
maclobdell 11:ae1f6fe932dc 117 printf("Connecting to the network failed %d!\n", status);
maclobdell 11:ae1f6fe932dc 118 return -1;
maclobdell 11:ae1f6fe932dc 119 }
maclobdell 11:ae1f6fe932dc 120
maclobdell 18:49062a0d117e 121 printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
maclobdell 11:ae1f6fe932dc 122
maclobdell 11:ae1f6fe932dc 123 // SimpleMbedCloudClient handles registering over LwM2M to Mbed Cloud
maclobdell 18:49062a0d117e 124 SimpleMbedCloudClient client(net, bd, &fs);
maclobdell 11:ae1f6fe932dc 125 int client_status = client.init();
maclobdell 11:ae1f6fe932dc 126 if (client_status != 0) {
maclobdell 11:ae1f6fe932dc 127 printf("Initializing Mbed Cloud Client failed (%d)\n", client_status);
maclobdell 11:ae1f6fe932dc 128 return -1;
maclobdell 11:ae1f6fe932dc 129 }
maclobdell 11:ae1f6fe932dc 130
maclobdell 11:ae1f6fe932dc 131 // Creating resources, which can be written or read from the cloud
maclobdell 11:ae1f6fe932dc 132 button_res = client.create_resource("3200/0/5501", "button_count");
maclobdell 11:ae1f6fe932dc 133 button_res->set_value(0);
maclobdell 11:ae1f6fe932dc 134 button_res->methods(M2MMethod::GET);
maclobdell 11:ae1f6fe932dc 135 button_res->observable(true);
maclobdell 11:ae1f6fe932dc 136 button_res->attach_notification_callback(button_callback);
maclobdell 11:ae1f6fe932dc 137
maclobdell 11:ae1f6fe932dc 138 pattern_res = client.create_resource("3201/0/5853", "blink_pattern");
maclobdell 11:ae1f6fe932dc 139 pattern_res->set_value("500:500:500:500:500:500:500:500");
maclobdell 11:ae1f6fe932dc 140 pattern_res->methods(M2MMethod::GET | M2MMethod::PUT);
maclobdell 11:ae1f6fe932dc 141 pattern_res->attach_put_callback(pattern_updated);
maclobdell 11:ae1f6fe932dc 142
maclobdell 11:ae1f6fe932dc 143 MbedCloudClientResource *blink_res = client.create_resource("3201/0/5850", "blink_action");
maclobdell 11:ae1f6fe932dc 144 blink_res->methods(M2MMethod::POST);
maclobdell 11:ae1f6fe932dc 145 blink_res->attach_post_callback(blink_callback);
maclobdell 11:ae1f6fe932dc 146
maclobdell 11:ae1f6fe932dc 147 printf("Initialized Mbed Cloud Client. Registering...\n");
maclobdell 11:ae1f6fe932dc 148
maclobdell 11:ae1f6fe932dc 149 // Callback that fires when registering is complete
maclobdell 11:ae1f6fe932dc 150 client.on_registered(&registered);
maclobdell 11:ae1f6fe932dc 151
maclobdell 11:ae1f6fe932dc 152 // Register with Mbed Cloud
maclobdell 11:ae1f6fe932dc 153 client.register_and_connect();
maclobdell 11:ae1f6fe932dc 154
maclobdell 11:ae1f6fe932dc 155 // Setup the button
maclobdell 11:ae1f6fe932dc 156 sw2.mode(PullUp);
maclobdell 11:ae1f6fe932dc 157
maclobdell 11:ae1f6fe932dc 158 // The button fall handler is placed in the event queue so it will run in
maclobdell 11:ae1f6fe932dc 159 // thread context instead of ISR context, which allows safely updating the cloud resource
maclobdell 11:ae1f6fe932dc 160 sw2.fall(eventQueue.event(&button_press));
maclobdell 11:ae1f6fe932dc 161 button_count = 0;
maclobdell 11:ae1f6fe932dc 162
maclobdell 11:ae1f6fe932dc 163 // Start the event queue in a separate thread so the main thread continues
maclobdell 11:ae1f6fe932dc 164 thread1.start(callback(&eventQueue, &EventQueue::dispatch_forever));
maclobdell 11:ae1f6fe932dc 165
maclobdell 11:ae1f6fe932dc 166 while(1)
maclobdell 11:ae1f6fe932dc 167 {
maclobdell 11:ae1f6fe932dc 168 wait_ms(100);
maclobdell 11:ae1f6fe932dc 169
maclobdell 11:ae1f6fe932dc 170 if (button_pressed) {
maclobdell 11:ae1f6fe932dc 171 button_pressed = false;
maclobdell 11:ae1f6fe932dc 172 printf("button clicked %d times\r\n", button_count);
maclobdell 11:ae1f6fe932dc 173 }
maclobdell 11:ae1f6fe932dc 174
maclobdell 11:ae1f6fe932dc 175 }
maclobdell 11:ae1f6fe932dc 176 }