133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
#include <Arduino.h>
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#ifdef ESP32
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#include <WiFi.h>
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#else
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#include <ESP8266WiFi.h>
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#endif
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#include <Alex2ESP.h>
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// The on-board LED: GPIO2 on a Wemos D1 mini (active-low). Defined here for boards whose variant leaves it out.
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#ifndef LED_BUILTIN
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#define LED_BUILTIN 2
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#endif
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// Define constants for WiFi and Alexa Client configuration
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const char *WIFI_SSID = "";
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const char *WIFI_PASSWORD = "";
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const char *ALEXA_USERNAME = "";
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const char *ALEXA_PASSWORD = "";
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const char *ALEXA_ROOT_TOPIC = "";
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// Create the Alexa client object
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Alex2ESP alexClient;
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AlexaDevice *device1;
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// Initial state for the blinds (PowerController)
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PowerController outputState = PowerController::OFF;
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void setup()
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{
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// Initialize the LED as output
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pinMode(LED_BUILTIN, OUTPUT);
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// Initialize serial communication for debugging
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Serial.begin(74880);
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// Connect to Wi-Fi
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WiFi.mode(WIFI_STA);
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WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
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Serial.print("[WIFI] Connecting to WiFi");
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while (WiFi.status() != WL_CONNECTED)
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{
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Serial.print(".");
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delay(100);
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}
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Serial.println();
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Serial.printf("[WIFI] Connected to SSID: %s, IP address: %s\n", WiFi.SSID().c_str(), WiFi.localIP().toString().c_str());
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// Initialize the Alexa client (MQTT username, MQTT password, root topic)
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alexClient.begin(ALEXA_USERNAME, ALEXA_PASSWORD, ALEXA_ROOT_TOPIC);
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String deviceName="Bedroom Blinds";
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// Register a new device with a unique ID and name
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device1 = alexClient.getDevice(deviceName, "ESP-01");
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// Set the device's display category to INTERIOR_BLIND
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device1->setDisplayCategory(DisplayCategory::INTERIOR_BLIND);
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//a power controller will allow us to "turn on/off" the blinds (not really usefull but is possable)
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device1->addCapability(AlexaInterfaceType::POWER_CONTROLLER);
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// Add a toggle controller capability to the device
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AlexaInterface* toggleController=device1->addCapability(AlexaInterfaceType::TOGGLE_CONTROLLER);
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//toggle controllers are unique in that they require some additinal attrabutes by default we first need to set an instance name
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toggleController->setInstance("ESP-01.Toggle");
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//we also need to set a name for the interface, this is a sub device listed under the main device name
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//to allow open/close commands as well as on/off commands we can use the same name as device name
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toggleController->addFriendlyName(deviceName.c_str(),"en-US");
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// Example of adding action mappings to map open/close to on/off
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ActionMapping closeMapping({AlexaActions::Close}, "TurnOn");
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ActionMapping openMapping({AlexaActions::Open}, "TurnOff");
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// the full supported list of alexa action mappings can be found on
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// https://developer.amazon.com/en-US/docs/alexa/device-apis/alexa-discovery-objects.html#action-mapping
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//note, only 'generic controller interffaces support action mappings for a full list visit
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//https://developer.amazon.com/en-US/docs/alexa/device-apis/generic-controllers.html
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toggleController->addActionMapping(closeMapping);
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toggleController->addActionMapping(openMapping);
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// Register event listener for "ReportState" directive
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device1->registerEvent("ReportState", [](const JsonDocument &directive, const AlexaInterfaceType &type)
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{
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Serial.println("Report state requested.");
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// Build and send status report
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device1->buildStatusMessage(directive["header"]["correlationToken"])
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.AddHealthProp(EndpointHealth::OK)
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.AddToggleControllerProp(outputState,"ESP-01.Toggle")
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.AddPowerControllerProp(outputState)
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.send(); });
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// Register event listener for "Event" directive to handle state changes
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device1->registerEvent("Event", [](const JsonDocument &directive, const AlexaInterfaceType &type)
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{
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if (type == AlexaInterfaceType::TOGGLE_CONTROLLER||type == AlexaInterfaceType::POWER_CONTROLLER) {
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if (directive["header"]["name"] == "TurnOn") {
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outputState = PowerController::ON;
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Serial.println("Turning ON");
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} else if (directive["header"]["name"] == "TurnOff") {
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outputState = PowerController::OFF;
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Serial.println("Turning OFF");
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}
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// Send the updated state after change
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device1->buildStatusMessage(directive["header"]["correlationToken"], true)
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.AddHealthProp(EndpointHealth::OK)
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.AddToggleControllerProp(outputState,"ESP-01.Toggle")
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.AddPowerControllerProp(outputState)
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.send();
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} });
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}
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void loop()
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{
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// Process Alexa client communication
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alexClient.loop();
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// Update the state of the LED based on the power controller state (the on-board LED is active-low)
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digitalWrite(LED_BUILTIN, outputState != PowerController::ON);
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}
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