intial test version

examples/Control/platformio.ini

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+[env]
+lib_extra_dirs = ../..
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+monitor_filters = esp32_exception_decoder
+
+[env:esp32-s3]
+platform = espressif32
+board = esp32-s3-devkitc-1
+framework = arduino
+monitor_speed = 115200
+monitor_filters = esp32_exception_decoder
+build_flags =
+    -D ARDUINO_USB_MODE=1
+    -D ARDUINO_USB_CDC_ON_BOOT=1

examples/Control/src/main.cpp

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+/**
+ * BluettiBLE Control Example
+ *
+ * Reads the device and toggles the AC output on/off every 30 seconds to show how
+ * to send control commands. DC output toggling works the same way via
+ * setDCOutput().
+ *
+ * WARNING: this actively switches your inverter output. Only run it when it is
+ * safe to power-cycle whatever is plugged in.
+ */
+
+#include <Arduino.h>
+#include "BluettiBLE.h"
+
+BluettiBLE bluetti;
+
+static uint32_t lastToggle = 0;
+static bool desiredAC = true;
+
+void onBluettiData(const BluettiDevice* dev) {
+    const BluettiData& d = dev->data;
+    Serial.printf("[%s] SoC %u%%  AC out %u W (%s)  DC out %u W (%s)\n",
+                  d.model, d.totalBatteryPercent,
+                  d.acOutputPower, d.acOutputOn ? "ON" : "off",
+                  d.dcOutputPower, d.dcOutputOn ? "ON" : "off");
+}
+
+void setup() {
+    Serial.begin(115200);
+    delay(1000);
+
+    Serial.println("\nBluettiBLE Control Example\n");
+
+    bluetti.begin();
+    bluetti.setDebug(true);
+    bluetti.setCallback(onBluettiData);
+
+    // CHANGE THESE: your device's advertised BLE name and model.
+    bluetti.addDevice("My Bluetti", "AC3001234567890", BLUETTI_AC300);
+}
+
+void loop() {
+    bluetti.loop();
+
+    if (bluetti.isConnected() && millis() - lastToggle > 30000) {
+        Serial.printf(">> setting AC output %s\n", desiredAC ? "ON" : "OFF");
+        if (bluetti.setACOutput(desiredAC))
+            Serial.println("   command sent");
+        else
+            Serial.println("   command not supported / not connected");
+        desiredAC = !desiredAC;
+        lastToggle = millis();
+    }
+}