initial commit

.gitignore

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+__pycache__/
+*.pyc
+*.swp
+

__main__.py

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+#! /usr/bin/env python3
+from serial import Serial
+from argparse import ArgumentParser
+from time import sleep
+
+
+# w == escape
+# | == carriage return
+POWER_SAVE_ON = "w1PSAV|"
+POWER_SAVE_OFF = "w0PSAV|"
+POWER_SAVE = "wpsav|"
+INPUT = lambda x: f"{x}!"
+
+EDIDS = {
+    "automatic": 0,
+    "1280x800": 14,
+    "720p60": 34,
+    "1080p60": 45,
+}
+
+ERRORS = {
+    "E01": "Invalid input number",
+    "E06": "Invalid switch attempt in this mode",
+    "E10": "Invalid command",
+    "E11": "Invalid preset number",
+    "E12": "Invalid port number",
+    "E13": "Invalid parameter",
+    "E14": "Not valid for this configuration",
+    "E17": "Invalid command for signal type",
+    "E22": "Busy",
+}
+
+verbose = False
+
+
+def send_command(command: str) -> str:
+    with Serial("/dev/serial/by-id/usb-Extron_Product-if00", 9600, timeout=1) as ser:
+        if verbose:
+            print("Send:", command)
+
+        ser.write(command.encode())
+        # response = ser.readline().decode().strip()
+        response = None
+
+        while not (response := ser.readline()):
+            pass
+        response = response.decode().strip()
+
+        if verbose:
+            print("Resp:", response)
+        if not response:
+            print("no reponse")
+            exit(1)
+        if response[0] == "E":
+            print(response, ERRORS.get(response, "Unknown"))
+            exit(1)
+
+    return response
+
+
+def send_command_projector(command: str) -> str:
+    with Serial("/dev/serial0", 9600, timeout=1) as ser:
+        ser.write(command.encode())
+        response = ser.readline()
+
+        if response:
+            print(response.decode())
+
+
+def check_power_save():
+    resp = send_command(POWER_SAVE)
+
+    return int(resp)
+
+
+def sleep_extron():
+    send_command(POWER_SAVE_ON)
+
+
+def wake():
+    send_command(POWER_SAVE_OFF)
+
+
+def change_input(input: int):
+    send_command(INPUT(input))
+
+
+if __name__ == "__main__":
+    parser = ArgumentParser()
+
+    parser.add_argument(
+        "-v", "--verbose", action="store_true", help="increase output verbosity"
+    )
+
+    sleep_or_wake = parser.add_mutually_exclusive_group()
+    sleep_or_wake.add_argument(
+        "input",
+        nargs="?",
+        type=int,
+        choices=[1, 2, 3, 4],
+        help="wake and select input",
+    )
+    sleep_or_wake.add_argument("--sleep", action="store_true", help="put in sleep mode")
+    args = parser.parse_args()
+
+    verbose = args.verbose
+
+    if args.input:
+        send_command_projector("\x02ADZZ;PON\x03")
+        wake()
+        change_input(args.input)
+
+        if verbose:
+            print("Waking projector")
+        #send_command_projector("\x02ADZZ;PON\x03")
+
+    elif args.sleep:
+        send_command_projector("\x02ADZZ;POF\x03")
+
+        sleep_extron()

projector.py

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+from serial import Serial
+
+STX = chr(0x02)
+ETX = chr(0x03)
+
+if __name__ == "__main__":
+    with Serial("/dev/ttyAMA0", 9600, timeout=1) as ser:
+        ser.write((STX + "ADZZ" + ";" + "PON" + ETX).encode())
+        while not (response := ser.readline()):
+            pass
+        print(response)
+