diff --git a/code/serial_sink/sink.py b/code/serial_sink/sink.py
index 858e5d583de1cc351099a0fd4ad03e4377389a72..ebd0aabb4c2dbeedb7ffefdffef813c7d431c101 100644
--- a/code/serial_sink/sink.py
+++ b/code/serial_sink/sink.py
@@ -4,10 +4,10 @@ import numpy as np
 import pandas as pd 
 import matplotlib.pyplot as plt 
 
-ser = CobsUsbSerial("COM23") 
+ser = CobsUsbSerial("/dev/ttyACM0") 
 
 stamp_count = 10000
-pck_len = 250
+pck_len = 32
 
 stamps = np.zeros(stamp_count)
 
diff --git a/images/2023-12-12_ingest-histogram-single-source-pck-128-ubuntu.png b/images/2023-12-12_ingest-histogram-single-source-pck-128-ubuntu.png
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diff --git a/images/2023-12-12_ingest-histogram-single-source-pck-250-ubuntu.png b/images/2023-12-12_ingest-histogram-single-source-pck-250-ubuntu.png
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diff --git a/images/2023-12-12_ingest-histogram-single-source-pck-32-ubuntu.png b/images/2023-12-12_ingest-histogram-single-source-pck-32-ubuntu.png
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diff --git a/images/2023-12-12_ingest-histogram-single-source-pck-64-ubuntu.png b/images/2023-12-12_ingest-histogram-single-source-pck-64-ubuntu.png
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