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https://github.com/Xinyuan-LilyGO/LilyGo-T-Call-SIM800.git
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41 lines
1.2 KiB
Arduino
41 lines
1.2 KiB
Arduino
/*
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This example sketch shows how a value can be sent from the Cayenne Dashboard to the Arduino on a Virtual Channel.
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The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager.
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Steps:
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1. Create a Generic Digital Output Actuator attached to Virtual Channel 4 in the Cayenne Dashboard.
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2. Set the Cayenne authentication info to match the authentication info from the Dashboard.
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3. Compile and upload the sketch.
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*/
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#define CAYENNE_PRINT Serial // Comment this out to disable prints and save space
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#include <CayenneMQTTEthernet.h> // Change this to use a different communication device. See Communications examples.
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// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
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char username[] = "MQTT_USERNAME";
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char password[] = "MQTT_PASSWORD";
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char clientID[] = "CLIENT_ID";
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void setup()
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{
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Serial.begin(9600);
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Cayenne.begin(username, password, clientID);
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}
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void loop()
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{
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Cayenne.loop();
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}
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// This function will be called every time a Dashboard widget writes a value to Virtual Channel 4.
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CAYENNE_IN(4)
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{
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CAYENNE_LOG("Got a value: %s", getValue.asStr());
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// You can also use:
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// int i = getValue.asInt() or
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// double d = getValue.asDouble()
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}
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