diff options
Diffstat (limited to 'hosts/gnuslashprinter/resources')
3 files changed, 65 insertions, 1 deletions
diff --git a/hosts/gnuslashprinter/resources/flaskrelayctl/pyproject.toml b/hosts/gnuslashprinter/resources/flaskrelayctl/pyproject.toml new file mode 100644 index 0000000..b151b74 --- /dev/null +++ b/hosts/gnuslashprinter/resources/flaskrelayctl/pyproject.toml @@ -0,0 +1,10 @@ +[build-system] +requires = ["setuptools"] +build-backend = "setuptools.build_meta" + +[project] +name = "flaskrelayctl" +version = "1.0" + +[project.scripts] +flaskrelayctl = "server:main" diff --git a/hosts/gnuslashprinter/resources/flaskrelayctl/server/__init__.py b/hosts/gnuslashprinter/resources/flaskrelayctl/server/__init__.py new file mode 100644 index 0000000..f2c0bc3 --- /dev/null +++ b/hosts/gnuslashprinter/resources/flaskrelayctl/server/__init__.py @@ -0,0 +1,54 @@ +from flask import Flask, jsonify +import serial +import os + +app = Flask(__name__) + +RELAY_DEV = os.environ.get("RELAYCTL_DEV", "/dev/ttyUSB0") +RELAY_HOST = os.environ.get("RELAYCTL_HOST", "127.0.0.1") +RELAY_PORT = os.environ.get("RELAYCTL_PORT", "5050") +RELAY_BAUD = 9600 +RELAY_ID = 1 # NOTE: multi relay boards are not supported (only relay id 1) + +def get_cmd(state: bool): + """ + LCUS relay 4-byte control command syntax is as follows: + start: always 0xA0 + relay: id of relay (counts from 1) + state: coil energized 0 or 1 + checksum: sum of previous 3 bytes + """ + start = 0xA0 + relay = RELAY_ID + state = int(state) + checksum = start + relay + state + return bytes((start, relay, state, checksum)) + +def get_serial(): + return serial.Serial(RELAY_DEV, RELAY_BAUD, timeout=1) + +@app.route("/on", methods=["GET", "POST"]) +def on(): + with get_serial() as ser: + ser.write(get_cmd(True)) + return jsonify({"state": "ON"}) + +@app.route("/off", methods=["GET", "POST"]) +def off(): + with get_serial() as ser: + ser.write(get_cmd(False)) + return jsonify({"state": "OFF"}) + +@app.route("/status", methods=["GET"]) +def status(): + with get_serial() as ser: + ser.write(bytes((0xFF,))) # write 0xFF to get status + r = ser.readline() + state = r.decode("utf-8").removeprefix("CH1: ").strip() + return jsonify({"state": state}) + +def main(): + app.run(host=RELAY_HOST, port=int(RELAY_PORT)) + +if __name__ == "__main__": + main() diff --git a/hosts/gnuslashprinter/resources/klipper/printer.cfg b/hosts/gnuslashprinter/resources/klipper/printer.cfg index 1e39048..4baba56 100644 --- a/hosts/gnuslashprinter/resources/klipper/printer.cfg +++ b/hosts/gnuslashprinter/resources/klipper/printer.cfg @@ -90,7 +90,7 @@ max_temp: 130 pin: PA0 [mcu] -serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0 +serial: /dev/gsp-control restart_method: command [printer] |