X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=firmware%2Fadc.c;h=6ef638a5c79204f20251608db63371bfd51a3fc6;hb=9e483c6969d2cdce60f6dcc3d167fec889a48993;hp=abbd3bac5b93c90c2ad9304b0430165e32aa3805;hpb=f31e81252594197944d593cb73c5a44856ee4893;p=bike-lights.git

diff --git a/firmware/adc.c b/firmware/adc.c
index abbd3ba..6ef638a 100644
--- a/firmware/adc.c
+++ b/firmware/adc.c
@@ -33,7 +33,7 @@ static void inline setup_mux(unsigned char n)
 		break;
 	case 3: // ambient light: 1.1V, ADC5 (PA6), single-ended
 		ADMUX = _BV(REFS1) | _BV(MUX2) | _BV(MUX0);
-		sum_shift = 0; // 1 measurement
+		sum_shift = 3; // 3 measurements
 		break;
 	case 4: // batt voltage: 1.1V, ADC6 (PA7), single-ended
 		ADMUX = _BV(REFS1) | _BV(MUX2) | _BV(MUX1);