From c41e36ca525ad1385e0ba5c834b3c5455d87940b Mon Sep 17 00:00:00 2001
From: TEParsons <todd.e.parsons@gmail.com>
Date: Wed, 22 Nov 2023 15:18:29 +0000
Subject: [PATCH] FF: Convert channel to zero-index

---
 psychopy_bbtk/tpad.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/psychopy_bbtk/tpad.py b/psychopy_bbtk/tpad.py
index 07073f0..b197141 100644
--- a/psychopy_bbtk/tpad.py
+++ b/psychopy_bbtk/tpad.py
@@ -194,6 +194,8 @@ def parseMessage(self, message):
             state = True
         elif state == "R":
             state = False
+        # convert channel to zero-indexed int
+        channel = int(channel) - 1
         
         resp = button.ButtonResponse(
             t=time, channel=channel, value=state