Playing with the prescaler of the ADC.

Edt-2000 · Jul 27, 2016 · 2f5b868 · 2f5b868
1 parent 267f326
commit 2f5b868
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/Arduino/Edt_Trak_v1/src/main.cpp b/Arduino/Edt_Trak_v1/src/main.cpp
@@ -22,7 +22,18 @@ EthernetUDP Udp;
 
 EdtAITrak Trak = EdtAITrak(0, 0, 0, 0, 0, 0, OSC_TRAK);
 
+// Define various ADC prescaler
+// http://www.microsmart.co.za/technical/2014/03/01/advanced-arduino-adc/
+const unsigned char PS_16 = (1 << ADPS2);
+const unsigned char PS_32 = (1 << ADPS2) | (1 << ADPS0);
+const unsigned char PS_64 = (1 << ADPS2) | (1 << ADPS1);
+const unsigned char PS_128 = (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0);
+
 void setup() {
+	// set up the ADC
+	ADCSRA &= ~PS_128;
+	ADCSRA |= PS_16;
+
 	Statemachine.begin(13, LOW);
 }