sandbox / Mbed OS simple-mbed-client-example

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Dependencies:   simple-mbed-client

Fork of simple-mbed-client-example by Jan Jongboom

main.cpp@16:71ec73ea9b6d, 2016-05-24 (annotated)

Committer:
Jan Jongboom
Date:
Tue May 24 15:02:19 2016 -0500
Revision:
16:71ec73ea9b6d
Parent:
14:ddc258abaaac
Child:
17:6d69aa1b393f
Move from mbed.bld to mbed-os.lib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
geky 4:dcd0494556be 1 /*
geky 4:dcd0494556be 2 * Copyright (c) 2015 ARM Limited. All rights reserved.
geky 4:dcd0494556be 3 * SPDX-License-Identifier: Apache-2.0
geky 4:dcd0494556be 4 * Licensed under the Apache License, Version 2.0 (the License); you may
geky 4:dcd0494556be 5 * not use this file except in compliance with the License.
geky 4:dcd0494556be 6 * You may obtain a copy of the License at
geky 4:dcd0494556be 7 *
geky 4:dcd0494556be 8 * http://www.apache.org/licenses/LICENSE-2.0
geky 4:dcd0494556be 9 *
geky 4:dcd0494556be 10 * Unless required by applicable law or agreed to in writing, software
geky 4:dcd0494556be 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
geky 4:dcd0494556be 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
geky 4:dcd0494556be 13 * See the License for the specific language governing permissions and
geky 4:dcd0494556be 14 * limitations under the License.
geky 4:dcd0494556be 15 */
Jan Jongboom 16:71ec73ea9b6d 16 #include <string>
geky 4:dcd0494556be 17 #include "mbed.h"
janjongboom 13:d4da5e6aa952 18 #include "security.h" // security file from connector.mbed.com
janjongboom 13:d4da5e6aa952 19 #include "LWIPInterface.h" // using Ethernet for connectivity
janjongboom 13:d4da5e6aa952 20 #include "simple-mbed-client.h" // simple-mbed-client
geky 4:dcd0494556be 21
janjongboom 13:d4da5e6aa952 22 // So these lines are unique to connecting etc... but then it's just a normal program
geky 4:dcd0494556be 23
janjongboom 13:d4da5e6aa952 24 Serial pc(USBTX, USBRX); // talk back to the computer
janjongboom 13:d4da5e6aa952 25 LWIPInterface lwip; // define the Ethernet interface
janjongboom 13:d4da5e6aa952 26 SimpleMbedClient client;
geky 4:dcd0494556be 27
janjongboom 13:d4da5e6aa952 28 // Declare some peripherals here
janjongboom 13:d4da5e6aa952 29 DigitalOut led(LED_RED);
janjongboom 13:d4da5e6aa952 30 DigitalOut registeredLed(LED_BLUE, 1);
janjongboom 13:d4da5e6aa952 31 InterruptIn btn(SW3);
geky 4:dcd0494556be 32
janjongboom 14:ddc258abaaac 33 // We need a semaphore because we cannot update value in interrupt context
janjongboom 14:ddc258abaaac 34 Semaphore updates(0);
janjongboom 14:ddc258abaaac 35
janjongboom 13:d4da5e6aa952 36 // play function, invoked thru mbed Client
janjongboom 13:d4da5e6aa952 37 void play(void* args) {
Jan Jongboom 16:71ec73ea9b6d 38 printf("I'm gonna play a song!\n");
janjongboom 13:d4da5e6aa952 39 }
geky 0:9ad9d701b1c3 40
janjongboom 13:d4da5e6aa952 41 // patternUpdated is called when the value of led/0/pattern changes
janjongboom 13:d4da5e6aa952 42 void patternUpdated(string newPattern) {
Jan Jongboom 16:71ec73ea9b6d 43 printf("Got a new pattern... %s\n", newPattern.c_str());
janjongboom 13:d4da5e6aa952 44 }
geky 4:dcd0494556be 45
janjongboom 13:d4da5e6aa952 46 // Here we define some mbed Client resources
janjongboom 13:d4da5e6aa952 47 SimpleResourceInt btn_count = client.define_resource("button/0/clicks", 0, M2MBase::GET_ALLOWED, true);
janjongboom 13:d4da5e6aa952 48 // need a callback when a PUT request comes in? Just pass in a callback
janjongboom 13:d4da5e6aa952 49 SimpleResourceString pattern = client.define_resource("led/0/pattern", "500:500:500", &patternUpdated);
geky 4:dcd0494556be 50
janjongboom 13:d4da5e6aa952 51 // Status callbacks if you're interested in that
janjongboom 13:d4da5e6aa952 52 void registered() {
Jan Jongboom 16:71ec73ea9b6d 53 printf("registered\n");
Jan Jongboom 16:71ec73ea9b6d 54 registeredLed = 0;
janjongboom 13:d4da5e6aa952 55 }
janjongboom 13:d4da5e6aa952 56 void unregistered() {
Jan Jongboom 16:71ec73ea9b6d 57 printf("unregistered\n");
Jan Jongboom 16:71ec73ea9b6d 58 registeredLed = 1;
geky 4:dcd0494556be 59 }
geky 4:dcd0494556be 60
janjongboom 14:ddc258abaaac 61 // we cannot do blocking stuff here, or device will crash
janjongboom 14:ddc258abaaac 62 // release semaphore and update btn_count in the while() loop...
janjongboom 13:d4da5e6aa952 63 void fall() {
Jan Jongboom 16:71ec73ea9b6d 64 updates.release();
janjongboom 13:d4da5e6aa952 65 }
janjongboom 13:d4da5e6aa952 66
janjongboom 13:d4da5e6aa952 67 // normal function
janjongboom 13:d4da5e6aa952 68 void toggleLed() {
Jan Jongboom 16:71ec73ea9b6d 69 led = !led;
geky 4:dcd0494556be 70 }
geky 4:dcd0494556be 71
geky 4:dcd0494556be 72 int main() {
janjongboom 13:d4da5e6aa952 73 pc.baud(115200);
Jan Jongboom 16:71ec73ea9b6d 74
janjongboom 13:d4da5e6aa952 75 Ticker t;
janjongboom 13:d4da5e6aa952 76 t.attach(&toggleLed, 1.0f);
Jan Jongboom 16:71ec73ea9b6d 77
janjongboom 13:d4da5e6aa952 78 btn.fall(&fall);
Jan Jongboom 16:71ec73ea9b6d 79
janjongboom 13:d4da5e6aa952 80 // here we define functions that should live in the cloud
Jan Jongboom 16:71ec73ea9b6d 81 client.define_function("song/0/play", &play);
geky 4:dcd0494556be 82
Jan Jongboom 16:71ec73ea9b6d 83 int connect = lwip.connect(); // can swap out for other network iface
Jan Jongboom 16:71ec73ea9b6d 84 if (connect != 0) {
Jan Jongboom 16:71ec73ea9b6d 85 printf("Connect to eth failed...\n");
Jan Jongboom 16:71ec73ea9b6d 86 return 1;
Jan Jongboom 16:71ec73ea9b6d 87 }
geky 4:dcd0494556be 88
Jan Jongboom 16:71ec73ea9b6d 89 printf("IP address %s\r\n", lwip.get_ip_address());
Jan Jongboom 16:71ec73ea9b6d 90
Jan Jongboom 16:71ec73ea9b6d 91 bool setup = client.setup(&lwip); // start mbed client!
janjongboom 13:d4da5e6aa952 92 if (!setup) {
Jan Jongboom 16:71ec73ea9b6d 93 printf("Setting up mbed_client failed...\n");
Jan Jongboom 16:71ec73ea9b6d 94 return 1;
geky 4:dcd0494556be 95 }
janjongboom 14:ddc258abaaac 96
janjongboom 13:d4da5e6aa952 97 client.on_registered(&registered);
janjongboom 13:d4da5e6aa952 98 client.on_unregistered(&unregistered);
Jan Jongboom 16:71ec73ea9b6d 99
janjongboom 14:ddc258abaaac 100 while (1) {
Jan Jongboom 16:71ec73ea9b6d 101 int v = updates.wait(25000);
Jan Jongboom 16:71ec73ea9b6d 102
Jan Jongboom 16:71ec73ea9b6d 103 if (v == 1) {
Jan Jongboom 16:71ec73ea9b6d 104 btn_count = btn_count + 1;
Jan Jongboom 16:71ec73ea9b6d 105 // printf is a bit inflexible, static_cast to get the right value
Jan Jongboom 16:71ec73ea9b6d 106 printf("btn_count is now %d\n", static_cast<int>(btn_count));
Jan Jongboom 16:71ec73ea9b6d 107 }
Jan Jongboom 16:71ec73ea9b6d 108
Jan Jongboom 16:71ec73ea9b6d 109 // call keep_alive at least every 30s.
Jan Jongboom 16:71ec73ea9b6d 110 client.keep_alive();
janjongboom 14:ddc258abaaac 111 }
geky 4:dcd0494556be 112 }