diff --git a/tools/orangepi_adc_io.py b/tools/orangepi_adc_io.py
index 597f006..75134e9 100644
--- a/tools/orangepi_adc_io.py
+++ b/tools/orangepi_adc_io.py
@@ -7,7 +7,7 @@ from wiringpi import GPIO
 if __name__ == '__main__':
     
     ADC_Pin = 6
-    
+    wiringpi.wiringPiSetup()
     wiringpi.pinMode(ADC_Pin, GPIO.INPUT)
     
     while True: