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
Diff: source/main.cpp
- Revision:
- 35:4b11d20d60e9
- Child:
- 38:fbbab77b54fb
diff -r 1e8d914a2876 -r 4b11d20d60e9 source/main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/source/main.cpp Fri Dec 02 15:46:04 2016 +0800 @@ -0,0 +1,93 @@ +#include "mbed.h" +#include "security.h" +#include "easy-connect.h" +#include "simple-mbed-client.h" + +EventQueue eventQueue(32 * EVENTS_EVENT_SIZE); // Event queue! + +SimpleMbedClient client; + +// Declare peripherals +DigitalOut connectivityLed(LED2); // Blinks while connecting, turns solid when connected +DigitalOut augmentedLed(LED1, BUILTIN_LED_OFF); // LED that can be controlled through Connector +InterruptIn btn(MBED_CONF_APP_BUTTON); // Button that sends it's count to Connector + +Ticker connectivityTicker; + +// Callback function when the pattern resource is updated +void patternUpdated(string v) { + printf("New pattern: %s\n", v.c_str()); +} + +// Define resources here. They act as normal variables, but are exposed to the internet... +SimpleResourceInt btn_count = client.define_resource("button/0/clicks", 0, M2MBase::GET_ALLOWED); +SimpleResourceString pattern = client.define_resource("led/0/pattern", "500:500:500:500:500:500:500", &patternUpdated); + +void fall() { + btn_count = btn_count + 1; + printf("Button count is now %d\r\n", static_cast<int>(btn_count)); +} + +void toggleConnectivityLed() { + connectivityLed = !connectivityLed; +} + +void registered() { + printf("Registered\r\n"); + + connectivityTicker.detach(); + connectivityLed = BUILTIN_LED_ON; +} + +void play(void* args) { + connectivityLed = BUILTIN_LED_OFF; + + // Parse the pattern string, and toggle the LED in that pattern + stringstream ss(pattern); + string item; + while(getline(ss, item, ':')) { + wait_ms(atoi((const char*)item.c_str())); + augmentedLed = !augmentedLed; + } + + augmentedLed = BUILTIN_LED_OFF; + connectivityLed = BUILTIN_LED_ON; +} + +int main() { + // Run a separate Thread to process events in + rtos::Thread et; + et.start(callback(&eventQueue, &EventQueue::dispatch_forever)); + + // Handle interrupts on the eventQueue - so we don't do things in interrupt context + btn.fall(eventQueue.event(&fall)); + + // Toggle the built-in LED every second (until we're connected, see `registered` function) + connectivityTicker.attach(eventQueue.event(toggleConnectivityLed), 1.0f); + + // Keep alive ticker (every 25 seconds) + eventQueue.call_every(25000, callback(&client, &SimpleMbedClient::keep_alive)); + + // Functions can be executed through mbed Device Connector via POST calls + client.define_function("led/0/play", &play); + + // Connect to the internet (see mbed_app.json for the connectivity method) + NetworkInterface* network = easy_connect(true); + if (!network) { + return 1; + } + + // Connect to mbed Device Connector + struct MbedClientOptions opts = client.get_default_options(); + opts.ServerAddress = MBED_SERVER_ADDRESS; + + bool setup = client.setup(opts, network); + if (!setup) { + printf("Client setup failed\n"); + return 1; + } + + client.on_registered(®istered); + + while (1) {} +}