Toyomasa Watarai / Mbed OS simple-client-app-shield

Example program for simple-mbed-client, connecting a device to mbed Device Connector.

Dependencies:   C12832 FXOS8700Q simple-mbed-client

Fork of simple-mbed-client-example by sandbox

source/main.cpp@38:fbbab77b54fb, 2017-02-07 (annotated)

Committer:
Jan Jongboom
Date:
Tue Feb 07 13:02:40 2017 +0100
Revision:
38:fbbab77b54fb
Parent:
35:4b11d20d60e9
Child:
40:6c039d073c0b
Bump mbed-os, easy-connect and simple-mbed-client. Get rid of stringstream. Work by default on devices without entropy sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jan Jongboom 35:4b11d20d60e9 1 #include "mbed.h"
Jan Jongboom 35:4b11d20d60e9 2 #include "security.h"
Jan Jongboom 35:4b11d20d60e9 3 #include "easy-connect.h"
Jan Jongboom 35:4b11d20d60e9 4 #include "simple-mbed-client.h"
Jan Jongboom 35:4b11d20d60e9 5
Jan Jongboom 35:4b11d20d60e9 6 SimpleMbedClient client;
Jan Jongboom 35:4b11d20d60e9 7
Jan Jongboom 35:4b11d20d60e9 8 // Declare peripherals
Jan Jongboom 38:fbbab77b54fb 9 DigitalOut connectivityLed(LED2); // Blinks while connecting, turns solid when connected
Jan Jongboom 38:fbbab77b54fb 10 DigitalOut augmentedLed(LED1, BUILTIN_LED_OFF); // LED that can be controlled through Connector
Jan Jongboom 38:fbbab77b54fb 11 InterruptIn btn(MBED_CONF_APP_BUTTON); // Button that sends it's count to Connector
Jan Jongboom 35:4b11d20d60e9 12
Jan Jongboom 35:4b11d20d60e9 13 Ticker connectivityTicker;
Jan Jongboom 35:4b11d20d60e9 14
Jan Jongboom 35:4b11d20d60e9 15 // Callback function when the pattern resource is updated
Jan Jongboom 35:4b11d20d60e9 16 void patternUpdated(string v) {
Jan Jongboom 35:4b11d20d60e9 17 printf("New pattern: %s\n", v.c_str());
Jan Jongboom 35:4b11d20d60e9 18 }
Jan Jongboom 35:4b11d20d60e9 19
Jan Jongboom 35:4b11d20d60e9 20 // Define resources here. They act as normal variables, but are exposed to the internet...
Jan Jongboom 35:4b11d20d60e9 21 SimpleResourceInt btn_count = client.define_resource("button/0/clicks", 0, M2MBase::GET_ALLOWED);
Jan Jongboom 35:4b11d20d60e9 22 SimpleResourceString pattern = client.define_resource("led/0/pattern", "500:500:500:500:500:500:500", &patternUpdated);
Jan Jongboom 35:4b11d20d60e9 23
Jan Jongboom 35:4b11d20d60e9 24 void fall() {
Jan Jongboom 35:4b11d20d60e9 25 btn_count = btn_count + 1;
Jan Jongboom 35:4b11d20d60e9 26 printf("Button count is now %d\r\n", static_cast<int>(btn_count));
Jan Jongboom 35:4b11d20d60e9 27 }
Jan Jongboom 35:4b11d20d60e9 28
Jan Jongboom 35:4b11d20d60e9 29 void toggleConnectivityLed() {
Jan Jongboom 35:4b11d20d60e9 30 connectivityLed = !connectivityLed;
Jan Jongboom 35:4b11d20d60e9 31 }
Jan Jongboom 35:4b11d20d60e9 32
Jan Jongboom 35:4b11d20d60e9 33 void registered() {
Jan Jongboom 35:4b11d20d60e9 34 printf("Registered\r\n");
Jan Jongboom 35:4b11d20d60e9 35
Jan Jongboom 35:4b11d20d60e9 36 connectivityTicker.detach();
Jan Jongboom 35:4b11d20d60e9 37 connectivityLed = BUILTIN_LED_ON;
Jan Jongboom 35:4b11d20d60e9 38 }
Jan Jongboom 35:4b11d20d60e9 39
Jan Jongboom 35:4b11d20d60e9 40 void play(void* args) {
Jan Jongboom 35:4b11d20d60e9 41 connectivityLed = BUILTIN_LED_OFF;
Jan Jongboom 35:4b11d20d60e9 42
Jan Jongboom 35:4b11d20d60e9 43 // Parse the pattern string, and toggle the LED in that pattern
Jan Jongboom 38:fbbab77b54fb 44 string s = static_cast<string>(pattern);
Jan Jongboom 38:fbbab77b54fb 45 size_t i = 0;
Jan Jongboom 38:fbbab77b54fb 46 size_t pos = s.find(':');
Jan Jongboom 38:fbbab77b54fb 47 while (pos != string::npos) {
Jan Jongboom 38:fbbab77b54fb 48 wait_ms(atoi(s.substr(i, pos - i).c_str()));
Jan Jongboom 35:4b11d20d60e9 49 augmentedLed = !augmentedLed;
Jan Jongboom 38:fbbab77b54fb 50
Jan Jongboom 38:fbbab77b54fb 51 i = ++pos;
Jan Jongboom 38:fbbab77b54fb 52 pos = s.find(':', pos);
Jan Jongboom 38:fbbab77b54fb 53
Jan Jongboom 38:fbbab77b54fb 54 if (pos == string::npos) {
Jan Jongboom 38:fbbab77b54fb 55 wait_ms(atoi(s.substr(i, s.length()).c_str()));
Jan Jongboom 38:fbbab77b54fb 56 augmentedLed = !augmentedLed;
Jan Jongboom 38:fbbab77b54fb 57 }
Jan Jongboom 35:4b11d20d60e9 58 }
Jan Jongboom 35:4b11d20d60e9 59
Jan Jongboom 35:4b11d20d60e9 60 augmentedLed = BUILTIN_LED_OFF;
Jan Jongboom 35:4b11d20d60e9 61 connectivityLed = BUILTIN_LED_ON;
Jan Jongboom 35:4b11d20d60e9 62 }
Jan Jongboom 35:4b11d20d60e9 63
Jan Jongboom 38:fbbab77b54fb 64 void play_from_cloud(void* args) {
Jan Jongboom 38:fbbab77b54fb 65 // play is a blocking function, so run this on the events thread instead of the main thread
Jan Jongboom 38:fbbab77b54fb 66 // (otherwise the device is not accessible while playing)
Jan Jongboom 38:fbbab77b54fb 67 client.eventQueue()->call(&play, args);
Jan Jongboom 38:fbbab77b54fb 68 }
Jan Jongboom 38:fbbab77b54fb 69
Jan Jongboom 35:4b11d20d60e9 70 int main() {
Jan Jongboom 38:fbbab77b54fb 71 // SimpleClient gives us an event queue which we can use, running on a separate thread (see https://docs.mbed.com/docs/mbed-os-handbook/en/5.1/concepts/events/)
Jan Jongboom 38:fbbab77b54fb 72 EventQueue* eventQueue = client.eventQueue();
Jan Jongboom 35:4b11d20d60e9 73
Jan Jongboom 35:4b11d20d60e9 74 // Handle interrupts on the eventQueue - so we don't do things in interrupt context
Jan Jongboom 38:fbbab77b54fb 75 btn.fall(eventQueue->event(&fall));
Jan Jongboom 35:4b11d20d60e9 76
Jan Jongboom 35:4b11d20d60e9 77 // Toggle the built-in LED every second (until we're connected, see `registered` function)
Jan Jongboom 38:fbbab77b54fb 78 connectivityTicker.attach(eventQueue->event(&toggleConnectivityLed), 1.0f);
Jan Jongboom 35:4b11d20d60e9 79
Jan Jongboom 35:4b11d20d60e9 80 // Functions can be executed through mbed Device Connector via POST calls
Jan Jongboom 38:fbbab77b54fb 81 client.define_function("led/0/play", &play_from_cloud);
Jan Jongboom 35:4b11d20d60e9 82
Jan Jongboom 35:4b11d20d60e9 83 // Connect to the internet (see mbed_app.json for the connectivity method)
Jan Jongboom 35:4b11d20d60e9 84 NetworkInterface* network = easy_connect(true);
Jan Jongboom 35:4b11d20d60e9 85 if (!network) {
Jan Jongboom 35:4b11d20d60e9 86 return 1;
Jan Jongboom 35:4b11d20d60e9 87 }
Jan Jongboom 35:4b11d20d60e9 88
Jan Jongboom 35:4b11d20d60e9 89 // Connect to mbed Device Connector
Jan Jongboom 38:fbbab77b54fb 90 struct MbedClientOptions opts = client.get_default_options(); // opts contains information like the DeviceType
Jan Jongboom 35:4b11d20d60e9 91 bool setup = client.setup(opts, network);
Jan Jongboom 35:4b11d20d60e9 92 if (!setup) {
Jan Jongboom 35:4b11d20d60e9 93 printf("Client setup failed\n");
Jan Jongboom 35:4b11d20d60e9 94 return 1;
Jan Jongboom 35:4b11d20d60e9 95 }
Jan Jongboom 35:4b11d20d60e9 96 client.on_registered(&registered);
Jan Jongboom 35:4b11d20d60e9 97 }