diff --git a/radio/src/targets/common/arm/stm32/stm32_adc.cpp b/radio/src/targets/common/arm/stm32/stm32_adc.cpp
index 4244a5d96a9..73c3be121b6 100644
--- a/radio/src/targets/common/arm/stm32/stm32_adc.cpp
+++ b/radio/src/targets/common/arm/stm32/stm32_adc.cpp
@@ -532,8 +532,10 @@ void stm32_hal_adc_wait_completion(const stm32_adc_t* ADCs, uint8_t n_ADC,
   (void)inputs;
   (void)n_inputs;
 
+  auto timeout = timersGetUsTick();
   while(!_adc_completed) {
     // busy wait
+    if (timersGetUsTick() - timeout >= 300) break;
   }
 }