commit 6a05e7e00bdb89f742dc13ecdaa0e8b487464d33
Author: dragonchaser <christian@boltares.de>
Date:   Tue Jul 8 17:06:03 2025 +0200

    initial commit
    
    Signed-off-by: dragonchaser <christian@boltares.de>

diff --git a/btcontrol.ino b/btcontrol.ino
new file mode 100644
index 0000000..b8178c5
--- /dev/null
+++ b/btcontrol.ino
@@ -0,0 +1,104 @@
+#include <Arduino.h>
+
+#include <BLEDevice.h>
+#include <BLEScan.h>
+
+#include <FastLED.h>
+
+#include <mutex>
+
+#define BLE_ACTIVE_SCAN false
+#define BLE_SCAN_INTERVAL 100
+#define BLE_WINDOW 99  // less or equal setInterval value
+
+#define NUM_LEDS 7
+#define DATA_PIN 1
+
+#define BRIGHTNESS          96
+#define FRAMES_PER_SECOND   24
+
+#define MAX_VANISH_COUNTER  50
+
+CRGB leds[NUM_LEDS];
+
+int scanTime = 1;  //In seconds
+
+BLEScan *pBLEScan;
+
+std::map<String,uint8_t> deviceDatabase;
+
+std::mutex callBackMutex;
+
+class AdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks {
+  void onResult(BLEAdvertisedDevice advertisedDevice) {
+    String addr = advertisedDevice.getAddress().toString();
+    String color = String("0x"+addr.substring(9,11)+addr.substring(12,14)+addr.substring(15,17));
+    color.toUpperCase();
+    color[1] = 'x';
+    deviceDatabase[color] = MAX_VANISH_COUNTER;
+    Serial.printf("Address: %s RSSI: %d TX Power: %d Calculated color: %s \n", addr.c_str(), advertisedDevice.getRSSI(), advertisedDevice.getTXPower(), color.c_str());
+    for(int i=0; i<NUM_LEDS;i++) {
+      leds[i] = strtol(color.c_str(), NULL, 0);
+    }
+    std::vector<String> keys;
+    for (auto &itr : deviceDatabase) {
+      if (color != itr.first) {
+        itr.second--;
+      }
+      if(itr.second == 0) {
+        keys.push_back(itr.first);
+      }
+    }
+    for (const auto &itr : keys) {
+      deviceDatabase.erase(itr);
+      Serial.printf("Have not seen %s for %d ticks, removing!\n", itr, MAX_VANISH_COUNTER);
+    }
+  }
+};
+
+void setup() {
+  FastLED.delay(1000/FRAMES_PER_SECOND); 
+  FastLED.addLeds<NEOPIXEL,DATA_PIN>(leds, NUM_LEDS);
+  for(int i=0; i<NUM_LEDS;i++) {
+    leds[i] = CRGB::Red;
+  }
+    FastLED.show();
+    FastLED.delay(1000/FRAMES_PER_SECOND); 
+  for(int i=0; i<NUM_LEDS;i++) {
+    leds[i] = CRGB::Blue;
+  }
+    FastLED.show();
+    FastLED.delay(1000/FRAMES_PER_SECOND); 
+  for(int i=0; i<NUM_LEDS;i++) {
+    leds[i] = CRGB::Green;
+  }
+    FastLED.show();
+    FastLED.delay(1000/FRAMES_PER_SECOND); 
+  for(int i=0; i<NUM_LEDS;i++) {
+    leds[i] = CRGB::Black;
+  }
+  FastLED.setBrightness(BRIGHTNESS);
+  FastLED.show();
+    
+  
+  Serial.begin(115200);
+  Serial.println("Scanning...");
+
+  BLEDevice::init("");
+  pBLEScan = BLEDevice::getScan();  //create new scan
+  pBLEScan->setAdvertisedDeviceCallbacks(new AdvertisedDeviceCallbacks());
+  pBLEScan->setActiveScan(BLE_ACTIVE_SCAN);  //active scan uses more power, but get results faster
+  pBLEScan->setInterval(BLE_SCAN_INTERVAL);
+  pBLEScan->setWindow(BLE_WINDOW);  // less or equal setInterval value
+}
+
+void loop() {
+  {
+    std::lock_guard<std::mutex> lck(callBackMutex);
+
+    BLEScanResults *foundDevices = pBLEScan->start(scanTime, false);
+    pBLEScan->clearResults();  // delete results fromBLEScan buffer to release memory
+  }
+  FastLED.show();
+  FastLED.delay(1000/FRAMES_PER_SECOND); 
+}
\ No newline at end of file