diff --git a/src/adc.c b/src/adc.c
--- a/src/adc.c
+++ b/src/adc.c
@@ -71,7 +71,7 @@ void adc_init(void)
 	hadc1.Init.DiscontinuousConvMode = DISABLE;
 	hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
 	hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
-	hadc1.Init.NbrOfConversion = 1;
+	hadc1.Init.NbrOfConversion = 3;
 	hadc1.Init.DMAContinuousRequests = ENABLE;
 	hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
 	hadc1.Init.LowPowerAutoWait = DISABLE;