commit 64e31cb540cd3e1b3f9a2da4031776eb6d5c7845
Author: Delf Neumärker <neumaerker@byonoy.com>
Date:   Thu Sep 18 15:00:39 2025 +0200

    Initial commit

diff --git a/Absorbance96-Serial-Interface.pdf b/Absorbance96-Serial-Interface.pdf
new file mode 100644
index 0000000..6958407
Binary files /dev/null and b/Absorbance96-Serial-Interface.pdf differ
diff --git a/abs96serial.py b/abs96serial.py
new file mode 100644
index 0000000..a516c81
--- /dev/null
+++ b/abs96serial.py
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+import argparse
+import serial
+
+
+def send_command(ser, command):
+    """Sends a command to the serial device and returns the response."""
+    full_command = f"!{command}\r\n"
+    ser.write(full_command.encode("utf-8"))
+
+    lines = []
+    # Determine the expected end marker
+    end_marker = f"#{command.split('(')[0]}()"
+    if command.startswith("RPF"):
+        end_marker = "#RP()"
+
+    while True:
+        line = ser.readline().decode("utf-8").strip()
+        if line == end_marker:
+            break
+        if line and line != f"!{command}":
+            lines.append(line)
+    return lines
+
+
+def execute_commands(ser, commands):
+    """Executes a list of commands and checks for errors."""
+    for command in commands:
+        print(f"--- {command} ---")
+        response_lines = send_command(ser, command)
+        for line in response_lines:
+            print(line)
+        if command == "ERROR()":
+            if not response_lines or not response_lines[-1].endswith("0"):
+                print("Error: Device reported an error. Exiting.")
+                exit(1)
+
+
+def main():
+    # Parse command-line arguments
+    parser = argparse.ArgumentParser(
+        description="Open a serial device at a specified port."
+    )
+    parser.add_argument(
+        "port", type=str, help="The serial port to open (e.g., /dev/ttyUSB0)."
+    )
+    parser.add_argument(
+        "--channel",
+        type=int,
+        default=0,
+        help="LED channel (default: 0).",
+    )
+    args = parser.parse_args()
+
+    # Open the serial port
+    try:
+        with serial.Serial(port=args.port, baudrate=115200, timeout=1) as ser:
+            print(f"Successfully opened serial port {args.port} at 115200 baud.")
+
+            commands1 = [
+                "SN()",
+                "GETFILT()",
+                "TEMP()",
+                f"CALIBRATE({args.channel},-1)",
+                "ERROR()",
+            ]
+            commands2 = [
+                f"RPF({args.channel},-1)",
+                "ERROR()",
+            ]
+
+            execute_commands(ser, commands1)
+            input("Insert plate and press Enter to continue...")
+            execute_commands(ser, commands2)
+
+    except serial.SerialException as e:
+        print(f"Error: {e}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/requirements.txt b/requirements.txt
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+++ b/requirements.txt
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+pyserial>=3,<4