Minor changes to rdf and a low res mode for video.

software/firmware/freq_testing/freq_testing.ino

@@ -0,0 +1,15 @@
+float freq = 1.5;
+int pin = 13;
+// convert freq to mills
+float mills = (1/freq)*1000;
+
+void setup(){
+    pinMode(pin, OUTPUT);
+}
+
+void loop(){
+    digitalWrite(pin,LOW);
+    delay(mills);
+    digitalWrite(pin, HIGH);
+    delay(mills);
+}