diff --git a/dev/test_mb_2024_1_mux_2024.py b/dev/test_mb_2024_1_mux_2024.py
index 95a30273907dcabdfef6a1a5866d91c610f9135d..e3e241df14cf0fe2a0fc4f8ae6c8e5df301ac08c 100644
--- a/dev/test_mb_2024_1_mux_2024.py
+++ b/dev/test_mb_2024_1_mux_2024.py
@@ -64,8 +64,8 @@ if part_of_hardware_system:
     # k.switch_mux(electrodes=[1, 4, 2, 3], roles=['A', 'B', 'M', 'N'], state='on')
     # time.sleep(1.)
     # k.switch_mux(electrodes=[1, 4, 2, 3], roles=['A', 'B', 'M', 'N'], state='off')
-    k._hw.mux_boards[mux_id].test(activation_time=activation_time)
-
+    # k.mux_boards[mux_id].test(activation_time=.4)
+    k.test_mux((1,'A'))
 if within_ohmpi:
     from ohmpi.ohmpi import OhmPi
     # from ohmpi.plots import plot_exec_log