feat(rmt): adds new function to the example

SuGlider · web-flow · commit c3b19192d0bc · 2025-09-06T00:08:48.000-03:00
diff --git a/libraries/ESP32/examples/RMT/RMT_LED_Blink/RMT_LED_Blink.ino b/libraries/ESP32/examples/RMT/RMT_LED_Blink/RMT_LED_Blink.ino
@@ -128,7 +128,7 @@ rmt_data_t blink_1s_rmt_data[] = {
     0,
   },
   // Looping mode needs a Zero ending data to mark the EOF
-  {0, 0, 0, 0}
+  { 0, 0, 0, 0 }
 };
 
 // RMT is at 400KHz with a 2.5us tick
@@ -185,7 +185,7 @@ rmt_data_t blink_500ms_rmt_data[] = {
     0,
   },
   // Looping mode needs a Zero ending data to mark the EOF
-  {0, 0, 0, 0}
+  { 0, 0, 0, 0 }
 };
 
 // RMT is at 400KHz with a 2.5us tick
@@ -218,7 +218,7 @@ rmt_data_t blink_250ms_rmt_data[] = {
     0,
   },
   // Looping mode needs a Zero ending data to mark the EOF
-  {0, 0, 0, 0}
+  { 0, 0, 0, 0 }
 };
 
 void RMT_Mixed_Write_Blink() {
@@ -244,7 +244,8 @@ void RMT_Mixed_Write_Blink() {
       Serial.println("===> rmtWrite Blink 0.25s Error!");
     }
     // wait (blocks) until all the data is sent out
-    while (!rmtTransmitCompleted(BLINK_GPIO));
+    while (!rmtTransmitCompleted(BLINK_GPIO))
+      ;
   }
   Serial.println("Blinking OFF for 1 seconds");
   delay(1000);
@@ -269,13 +270,34 @@ void RMT_Loop_Write_Blink() {
   delay(5000);
 
   Serial.println("Blinking OFF for 2 seconds");
-  rmt_data_t blink_STOP_rmt_data[] = {{0, 0, 0, 0}};
+  rmt_data_t blink_STOP_rmt_data[] = { { 0, 0, 0, 0 } };
   if (!rmtWrite(BLINK_GPIO, blink_STOP_rmt_data, RMT_SYMBOLS_OF(blink_STOP_rmt_data), RMT_WAIT_FOR_EVER)) {
     Serial.println("===> rmtWrite Blink STOP Error!");
   }
   delay(2000);
 }
 
+void RMT_Repeated_Write_Blink() {
+  Serial.println("Using RMT Writing repeated N times to blink an LED.");
+  Serial.println("Blinking at 1s on + 1s off :: 2 blinks");
+  // repeating blink_1s_rmt_data (1s on + 1s off) 2 times for 2 blinks
+  if (!rmtWriteRepeated(BLINK_GPIO, blink_1s_rmt_data, RMT_SYMBOLS_OF(blink_1s_rmt_data) - 1, 2)) {
+    Serial.println("===> rmtWrite Blink 1s Error!");
+  }
+  Serial.println("Blinking at 500ms on + 500ms off :: 4 blinks");
+  // repeating blink_500ms_rmt_data (500ms on + 500ms off) 4 times for 4 blinks
+  if (!rmtWriteRepeated(BLINK_GPIO, blink_500ms_rmt_data, RMT_SYMBOLS_OF(blink_500ms_rmt_data) - 1, 4)) {
+    Serial.println("===> rmtWrite Blink 0.5s Error!");
+  }
+  Serial.println("Blinking at 250ms on + 250ms off :: 8 blinks");
+  // repeating blink_250ms_rmt_data (250ms on + 250ms off) 8 times for 8 blinks
+  if (!rmtWriteRepeated(BLINK_GPIO, blink_250ms_rmt_data, RMT_SYMBOLS_OF(blink_250ms_rmt_data) - 1, 8)) {
+    Serial.println("===> rmtWrite Blink 0.25s Error!");
+  }
+  Serial.println("Blinking is OFF for 2 seconds");
+  delay(2000);
+}
+
 void RMT_Single_Write_Blocking_Blink() {
   Serial.println("Using RMT Writing and its Completion to blink an LED.");
   Serial.println("Blinking at 1s on + 1s off :: 2 blinks");
@@ -308,23 +330,26 @@ void RMT_Write_Aync_Non_Blocking_Blink() {
       Serial.println("===> rmtWrite Blink 1s Error!");
     }
     // wait (blocks) until all the data is sent out
-    while (!rmtTransmitCompleted(BLINK_GPIO));
+    while (!rmtTransmitCompleted(BLINK_GPIO))
+      ;
   }
   Serial.println("Blinking at 500ms on + 500ms off :: 5 blinks");
   for (uint8_t i = 0; i < 5; i++) {
     if (!rmtWriteAsync(BLINK_GPIO, blink_500ms_rmt_data, RMT_SYMBOLS_OF(blink_500ms_rmt_data) - 1)) {
       Serial.println("===> rmtWrite Blink 0.5s Error!");
     }
     // wait (blocks) until all the data is sent out
-    while (!rmtTransmitCompleted(BLINK_GPIO));
+    while (!rmtTransmitCompleted(BLINK_GPIO))
+      ;
   }
   Serial.println("Blinking at 250ms on + 250ms off :: 5 blinks");
   for (uint8_t i = 0; i < 5; i++) {
     if (!rmtWriteAsync(BLINK_GPIO, blink_250ms_rmt_data, RMT_SYMBOLS_OF(blink_250ms_rmt_data) - 1)) {
       Serial.println("===> rmtWrite Blink 0.25s Error!");
     }
     // wait (blocks) until all the data is  sent out
-    while (!rmtTransmitCompleted(BLINK_GPIO));
+    while (!rmtTransmitCompleted(BLINK_GPIO))
+      ;
   }
   Serial.println("Blinking OFF for 1 seconds");
   delay(1000);
@@ -356,6 +381,7 @@ void setup() {
 void loop() {
   RMT_Write_Aync_Non_Blocking_Blink();
   RMT_Loop_Write_Blink();
+  RMT_Repeated_Write_Blink();
   RMT_Single_Write_Blocking_Blink();
   Serial.println("\nStarting OVER...\n");
 }
