diff --git a/Software/python/hwtest.py b/Software/python/hwtest.py
index 99d0a12..7cc224a 100644
--- a/Software/python/hwtest.py
+++ b/Software/python/hwtest.py
@@ -42,6 +42,7 @@ def get_reflectivity(chan):
     adc_lock.acquire()
     for ii, io in enumerate(mux_io):
         io.value = mux[ii]
+    time.sleep(0.001)
     voltage = adc_mux.voltage
     adc_lock.release()
     return voltage