fixed some unicode characters

ROFLS_Arena_Camera_Controller/ROFLS_Arena_Camera_Controller.ino

@@ -43,7 +43,7 @@ bool lastRECORDING = false;  // for change detection
 unsigned long lastBlink = 0;
 bool ledState = false;
 
-// ESP‑NOW receive callback
+// ESP-NOW receive callback
 void onDataRecv(const esp_now_recv_info *info, const uint8_t *data, int len) {
   if (len != sizeof(incoming)) return;
 
@@ -79,7 +79,7 @@ void setup() {
   WiFi.setSleep(false);
 
   if (esp_now_init() != ESP_OK) {
-    Serial.println("ESP‑NOW init failed!");
+    Serial.println("ESP-NOW init failed!");
     return;
   }
 
@@ -100,7 +100,7 @@ void loop() {
     lastRECORDING = RECORDING;
   }
 
-  // Non‑blocking LED blink when RECORDING = true
+  // Non-blocking LED blink when RECORDING = true
   if (RECORDING) {
     unsigned long now = millis();
     if (now - lastBlink >= 1000) {  // blink every 1s