From 83ecdbda7d5cf04c0cec919eddd3afb103acb0a4 Mon Sep 17 00:00:00 2001
From: John La Rooy <john@larooy.com>
Date: Tue, 11 Jul 2023 16:38:54 +1000
Subject: [PATCH 1/2] Correct the alignment of the data in the rx_buf

    The first bit of the result bytes is not used.
    So, for a 12 bit result, the high 7 bits come from rx_buf[1]
    and 5 low bits come from rx_buf[0].
---
 xpt2046.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xpt2046.py b/xpt2046.py
index b1e8751..9fe28be 100644
--- a/xpt2046.py
+++ b/xpt2046.py
@@ -132,4 +132,4 @@ def send_command(self, command):
         self.spi.write_readinto(self.tx_buf, self.rx_buf)
         self.cs(1)
 
-        return (self.rx_buf[1] << 4) | (self.rx_buf[2] >> 4)
+        return (self.rx_buf[1] << 5) | (self.rx_buf[2] >> 3)

From a2d0fa5def7abdb75dd0b9cf817a8a6b44df66d6 Mon Sep 17 00:00:00 2001
From: John La Rooy <john@larooy.com>
Date: Mon, 3 Aug 2026 11:02:43 +1000
Subject: [PATCH 2/2] Update xpt2046.py

The fixed bitshift means we should double the defaults for x_max and x_min
---
 xpt2046.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xpt2046.py b/xpt2046.py
index 9fe28be..7f8c0bc 100644
--- a/xpt2046.py
+++ b/xpt2046.py
@@ -17,7 +17,7 @@ class Touch(object):
 
     def __init__(self, spi, cs, int_pin=None, int_handler=None,
                  width=240, height=320,
-                 x_min=100, x_max=1962, y_min=100, y_max=1900):
+                 x_min=100, x_max=3924, y_min=100, y_max=3800):
         """Initialize touch screen controller.
 
         Args: