readme

[mirrors/Programs.git] / plugins / sigrok-decoders / caliper / __init__.py

diff --git a/plugins/sigrok-decoders/caliper/__init__.py b/plugins/sigrok-decoders/caliper/__init__.py
index 65620f8e9a21b86ea51491e9f46691a128b758cc..3fc99fed2a959c455c198a3c0813dcbf01893e50 100644 (file)
--- a/plugins/sigrok-decoders/caliper/__init__.py
+++ b/plugins/sigrok-decoders/caliper/__init__.py
@@ -20,6 +20,17 @@
 '''
 This decodes digital output of cheap generic calipers (usualy made in china)
 Decoder will show measured value in milimeters or inches.
+
+Please note that these devices often communicate on low voltage level,
+which might not be possible to capture with 3.3V logic analyzers.
+So additional circuitry might be needed to capture the signal.
+
+This is NOT for calipers using Digimatic protocol (eg. Mitutoyo and similar brands)
+
+More info:
+
+http://www.shumatech.com/support/chinese_scales.htm
+https://www.instructables.com/id/Reading-Digital-Callipers-with-an-Arduino-USB/
 '''
 
 from .pd import Decoder