From bfb2290634e3c5d71884063d4ea015631059cd78 Mon Sep 17 00:00:00 2001
From: Joan <lgray.foxl@gmail.com>
Date: Wed, 31 Dec 2025 13:00:47 +0100
Subject: [PATCH] Add GPIO button test script

---
 test_buttons.py | 62 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 test_buttons.py

diff --git a/test_buttons.py b/test_buttons.py
new file mode 100644
index 0000000..1bddabc
--- /dev/null
+++ b/test_buttons.py
@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+"""
+GPIO Button Test Script
+Run this on the Raspberry Pi to identify which GPIO pins the buttons are on.
+Press Ctrl+C to exit.
+"""
+import time
+
+try:
+    import RPi.GPIO as GPIO
+except ImportError:
+    print("RPi.GPIO not found. Install with: sudo apt install python3-rpi.gpio")
+    exit(1)
+
+# Common GPIO pins to test (BCM numbering)
+# Excluding pins used by the LED matrix (typically 2-27 are used by the matrix)
+# These are additional GPIO pins that might be available
+TEST_PINS = [4, 5, 6, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]
+
+def main():
+    print("=" * 50)
+    print("GPIO Capacitive Button Test")
+    print("=" * 50)
+    print("\nSetting up GPIO pins for input with pull-up resistors...")
+    print("Press buttons to see which GPIO pin responds.")
+    print("Press Ctrl+C to exit.\n")
+    
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setwarnings(False)
+    
+    # Set up all test pins as inputs with pull-up
+    active_pins = []
+    for pin in TEST_PINS:
+        try:
+            GPIO.setup(pin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+            active_pins.append(pin)
+        except Exception as e:
+            print(f"  Pin {pin}: Could not configure ({e})")
+    
+    print(f"Testing pins: {active_pins}\n")
+    
+    # Store previous states to detect changes
+    prev_states = {pin: GPIO.input(pin) for pin in active_pins}
+    
+    try:
+        while True:
+            for pin in active_pins:
+                current = GPIO.input(pin)
+                if current != prev_states[pin]:
+                    if current == GPIO.LOW:
+                        print(f">>> Button PRESSED on GPIO {pin} <<<")
+                    else:
+                        print(f"    Button released on GPIO {pin}")
+                    prev_states[pin] = current
+            time.sleep(0.05)
+    except KeyboardInterrupt:
+        print("\n\nTest complete.")
+    finally:
+        GPIO.cleanup()
+
+if __name__ == "__main__":
+    main()