diff --git a/mote/v1/avr/main.c b/mote/v1/avr/main.c
index 1ffb5b2..4ff885d 100644
--- a/mote/v1/avr/main.c
+++ b/mote/v1/avr/main.c
@@ -70,7 +70,7 @@ ISR(PCINT2_vect) {
 }
 **/
 
-void pulse_add(volatile struct sensor *measurement, volatile struct state *aux, uint8_t pulse_const, uint8_t pulse_half) {
+void pulse_add(volatile struct sensor *measurement, volatile struct state *aux, uint32_t pulse_const, uint32_t pulse_half) {
   measurement->value += pulse_const;
 
   if (aux->half == true) {
diff --git a/mote/v1/avr/main.h b/mote/v1/avr/main.h
index 0444ad2..9fe0578 100644
--- a/mote/v1/avr/main.h
+++ b/mote/v1/avr/main.h
@@ -141,5 +141,5 @@ struct sensor {
 // prototypes
 void WDT_off(void);
 void WDT_on(void);
-void pulse_add(volatile struct sensor *measurement, volatile struct state *aux, uint8_t pulse_const, uint8_t pulse_half);
+void pulse_add(volatile struct sensor *measurement, volatile struct state *aux, uint32_t pulse_const, uint32_t pulse_half);
 void send(uint8_t msg_type, const struct sensor *measurement, const struct state *aux);