changes for 240 volts

arduino/remembering_clive_wearing_arduino.ino

@@ -6,17 +6,17 @@
 int AC_pin_offset = 22; // lowest out for lights
 int dims[18]; // dimmer values
 unsigned char clock_tick; // variable for Timer1
-unsigned int delay_time = 50;
 
 void setup() {
   Serial.begin(115200);
   for(int i = 0; i < 18; i++){
-    dims[i] = 110;
+    dims[i] = 256;
     // Set the pins to the triacs as outputs (using outs 0 - 17)
     pinMode(AC_pin_offset + i, OUTPUT);   
   };
   attachInterrupt(0, zero_crosss_int, RISING);
-  Timer1.initialize(65); // set a timer of length 100 microseconds for 50Hz or 83 microseconds for 60Hz;
+  // for resoution of 128 steps, set timer so 33 microseconds for 60 Hz or 39 for 50 Hz 
+  Timer1.initialize(39);
   Timer1.attachInterrupt(timerIsr); // attach the service routine here
 }
 

supercollider/remembering_clive_wearing_visuals.scd

@@ -59,10 +59,13 @@ refresh_func = { while { true } {
 
 	// updateArduino
 	if(~arduino == 1, {
-		{|i|
+		// set min and max Brightness between 0 and 1 depending on wattage of light
+		// it is best to keep the min slightly higher than 0 to keep the light from turning completely off
+		{|i| var minBrightness = 0.1, maxBrightness = 0.9;
 			arduino_port.putAll(i.asString);
 			arduino_port.put(Char.space);
-			arduino_port.putAll(((brightness[i] - 1).abs * 110).trunc.asString);
+			arduino_port.putAll((((brightness[i] * (maxBrightness - minBrightness) + minBrightness) - 1).abs * 256)
+				.trunc.asString);
 			arduino_port.put(Char.space);
 			arduino_port.put(13);
 	} ! 18 }, {});