46 lines
1.7 KiB
Arduino
46 lines
1.7 KiB
Arduino
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#include <simple_iot.h>
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/**
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* This example shows how to use reports.
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* Two reports are defined:
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* * "free_heap" returns the amount of free heap space. The method is provided as lambda function.
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* Since `interval` ist set to 0, it will not be reported via MQTT, making it accessible only
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* via HTTP.
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* * "uptime" returns the current uptime in seconds. It will be reported via MQTT (as long as you
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* keep MQTT enabled) every 10 seconds. Since `cache_only` is set to true, the method won't be
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* called any more often than that.
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*
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* You can access them via HTTP GET request to `/free_heap` or `/uptime`. There's a
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* nice-ish website at `/`, listing all registered reports along with (cached) data from them.
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* If you kept the suggested hostname, this link should lead you there: http://basic-test/.
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*
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* If you enabled MQTT, "free_heap" will be published every 10 seconds. Again, if you
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* didn't change the topic below, it would be `basic-test-mqtt-topic/free_heap`.
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*/
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SimpleIOT* iot = NULL;
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String uptime() {
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return String(millis() / 1000);
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}
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void setup() {
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// Set pin 13 to be an OUTPUT.
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pinMode(13, OUTPUT);
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// Initialize SimpleIOT, giving it a WiFi SSID and the matching password to connect as well as a hostname to use.
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iot = new SimpleIOT("ssid", "password", "basic-test");
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// Set data for an MQTT server. You can omit this line if you don't want to use MQTT.
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iot->setMQTTData("1.2.3.4", 1883, "basic-test-mqtt-user", "basic-test-mqtt-password", "basic-test-mqtt-topic/");
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// Define three actions.
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iot->report_on("free_heap", []()->String{ return String(ESP.free_heap()); }, 0, false);
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iot->report_on("uptime", uptime, 10000, true);
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iot->begin();
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}
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void loop() {
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iot->loop();
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}
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