Merge remote-tracking branch 'refs/remotes/origin/master' into raspberry-pi-support

arduino/ws2812_controller/ws2812_controller.ino

@@ -5,10 +5,12 @@
 #include <WiFiUdp.h>
 #include "ws2812_i2s.h"
 
-// Set this to the number of LEDs in your LED strip
+// Set to the number of LEDs in your LED strip
 #define NUM_LEDS 60
 // Maximum number of packets to hold in the buffer. Don't change this.
 #define BUFFER_LEN 1024
+// Toggles FPS output (1 = print FPS over serial, 0 = disable output)
+#define PRINT_FPS 1
 
 // Wifi and socket settings
 const char* ssid     = "YOUR_WIFI_SSID";
@@ -45,17 +47,19 @@ void setup() {
     Serial.println(WiFi.localIP());
     port.begin(localPort);
     ledstrip.init(NUM_LEDS);
-    pinMode(0, OUTPUT);
 }
 
 uint8_t N = 0;
+#if PRINT_FPS
+    uint16_t fpsCounter = 0;
+    uint32_t secondTimer = 0;
+#endif
 
 void loop() {
     // Read data over socket
     int packetSize = port.parsePacket();
     // If packets have been received, interpret the command
     if (packetSize) {
-      digitalWrite(0, 1);
         int len = port.read(packetBuffer, BUFFER_LEN);
         for(int i = 0; i < len; i+=4) {
             packetBuffer[len] = 0;
@@ -65,6 +69,15 @@ void loop() {
             pixels[N].B = (uint8_t)packetBuffer[i+3];
         } 
         ledstrip.show(pixels);
-      digitalWrite(0, 0);
+        #if PRINT_FPS
+            fpsCounter++;
+        #endif
     }
+    #if PRINT_FPS
+        if (millis() - secondTimer >= 1000U) {
+            secondTimer = millis();
+            Serial.printf("FPS: %d\n", fpsCounter);
+            fpsCounter = 0;
+        }   
+    #endif
 }