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
source/main.cpp@40:6c039d073c0b, 2017-02-07 (annotated)
- Committer:
- Jan Jongboom
- Date:
- Tue Feb 07 17:22:37 2017 +0100
- Revision:
- 40:6c039d073c0b
- Parent:
- 38:fbbab77b54fb
- Child:
- 44:5a1db9f98f5f
Defer LED play function to the event thread directly
Who changed what in which revision?
User | Revision | Line number | New 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 |
35:4b11d20d60e9 | 64 | int main() { |
Jan Jongboom |
38:fbbab77b54fb | 65 | // 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 | 66 | EventQueue* eventQueue = client.eventQueue(); |
Jan Jongboom |
35:4b11d20d60e9 | 67 | |
Jan Jongboom |
35:4b11d20d60e9 | 68 | // Handle interrupts on the eventQueue - so we don't do things in interrupt context |
Jan Jongboom |
38:fbbab77b54fb | 69 | btn.fall(eventQueue->event(&fall)); |
Jan Jongboom |
35:4b11d20d60e9 | 70 | |
Jan Jongboom |
35:4b11d20d60e9 | 71 | // Toggle the built-in LED every second (until we're connected, see `registered` function) |
Jan Jongboom |
38:fbbab77b54fb | 72 | connectivityTicker.attach(eventQueue->event(&toggleConnectivityLed), 1.0f); |
Jan Jongboom |
35:4b11d20d60e9 | 73 | |
Jan Jongboom |
40:6c039d073c0b | 74 | // Functions can be executed through mbed Device Connector via POST calls (also defer to the event thread, so we never block) |
Jan Jongboom |
40:6c039d073c0b | 75 | client.define_function("led/0/play", eventQueue->event(&play)); |
Jan Jongboom |
35:4b11d20d60e9 | 76 | |
Jan Jongboom |
35:4b11d20d60e9 | 77 | // Connect to the internet (see mbed_app.json for the connectivity method) |
Jan Jongboom |
35:4b11d20d60e9 | 78 | NetworkInterface* network = easy_connect(true); |
Jan Jongboom |
35:4b11d20d60e9 | 79 | if (!network) { |
Jan Jongboom |
35:4b11d20d60e9 | 80 | return 1; |
Jan Jongboom |
35:4b11d20d60e9 | 81 | } |
Jan Jongboom |
35:4b11d20d60e9 | 82 | |
Jan Jongboom |
35:4b11d20d60e9 | 83 | // Connect to mbed Device Connector |
Jan Jongboom |
38:fbbab77b54fb | 84 | struct MbedClientOptions opts = client.get_default_options(); // opts contains information like the DeviceType |
Jan Jongboom |
35:4b11d20d60e9 | 85 | bool setup = client.setup(opts, network); |
Jan Jongboom |
35:4b11d20d60e9 | 86 | if (!setup) { |
Jan Jongboom |
35:4b11d20d60e9 | 87 | printf("Client setup failed\n"); |
Jan Jongboom |
35:4b11d20d60e9 | 88 | return 1; |
Jan Jongboom |
35:4b11d20d60e9 | 89 | } |
Jan Jongboom |
35:4b11d20d60e9 | 90 | client.on_registered(®istered); |
Jan Jongboom |
35:4b11d20d60e9 | 91 | } |