diff --git a/Inc/Adc.h b/Inc/Adc.h
index c3813b8..6d838bb 100644
--- a/Inc/Adc.h
+++ b/Inc/Adc.h
@@ -7,6 +7,6 @@
 
 #include "AdcIO.h"
 
-uint16_t AdcGet(tAdcIO *io, uint32_t timeout);
+uint8_t AdcGet(tAdcIO *io, uint32_t *buf, uint32_t timeout);
 
 #endif //ADC_H
diff --git a/Src/Adc.c b/Src/Adc.c
index 384af6f..34bd83b 100644
--- a/Src/Adc.c
+++ b/Src/Adc.c
@@ -5,6 +5,6 @@
 #include "Adc.h"
 #include "SystemDelayInterface.h"
 
-uint16_t AdcGet(tAdcIO *io, uint32_t timeout) {
-    return io->get(io->env, timeout);
+uint8_t AdcGet(tAdcIO *io, uint32_t *buf, uint32_t timeout) {
+    return io->get(io->env,  buf, timeout);
 }