5a05ee99a1
- ESP32-C3 SPI slave project with ESP-NOW broadcast functionality - Raspberry Pi SPI master test tools and CLI for JSON communication - Merged src/ directory from full branch with lighting controller code - Updated Pipfile with system install scripts and ESP32 monitoring - Added comprehensive test suite for SPI communication
115 lines
3.8 KiB
Python
Executable File
115 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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CLI to send JSON over SPI to the ESP32-C3 SPI slave.
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Examples:
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./send_json.py --data '{"d":{"t":"b","br":128},"bar":{"pt":"off"}}'
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./send_json.py --file payload.json
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./send_json.py --beat --brightness 180 --delay 30 --pattern wave
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"""
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import argparse
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import json
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import os
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import sys
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# Ensure we can import the local test helper
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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if SCRIPT_DIR not in sys.path:
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sys.path.insert(0, SCRIPT_DIR)
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from spi_master_test import SPIMasterTest # noqa: E402
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def build_payload_from_args(args: argparse.Namespace) -> dict:
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"""Build a control payload matching the receiver format from args."""
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if args.data:
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try:
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return json.loads(args.data)
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except Exception as exc:
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print(f"Invalid JSON in --data: {exc}")
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sys.exit(2)
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if args.file:
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try:
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with open(args.file, "r", encoding="utf-8") as f:
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return json.load(f)
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except Exception as exc:
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print(f"Failed to read JSON file {args.file}: {exc}")
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sys.exit(2)
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# Build from individual params (beat or update)
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msg_type = "b" if args.beat else "u"
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defaults = {"t": msg_type}
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if args.brightness is not None:
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defaults["br"] = int(args.brightness)
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if args.delay is not None:
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defaults["dl"] = int(args.delay)
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if args.n1 is not None:
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defaults["n1"] = int(args.n1)
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if args.n2 is not None:
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defaults["n2"] = int(args.n2)
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if args.n3 is not None:
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defaults["n3"] = int(args.n3)
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if args.step is not None:
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defaults["s"] = int(args.step)
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bar = {}
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if args.pattern:
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bar["pt"] = args.pattern
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if args.name_value:
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# Allow sending a specific bar (device) override by name
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# Usage: --name-value mybar '{"br":200,"pt":"off"}'
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try:
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name, value = args.name_value
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bar = json.loads(value)
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return {"d": defaults, name: bar}
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except Exception as exc:
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print(f"Invalid --name-value: {exc}")
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sys.exit(2)
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# Default field name could be populated on receiver side via settings.get("name")
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# We only send defaults and a generic "bar" override here for convenience.
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return {"d": defaults, "bar": bar}
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def parse_args() -> argparse.Namespace:
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p = argparse.ArgumentParser(description="Send JSON over SPI to ESP32-C3")
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src = p.add_mutually_exclusive_group()
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src.add_argument("--data", help="Raw JSON string to send")
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src.add_argument("--file", help="Path to JSON file to send")
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p.add_argument("--beat", action="store_true", help="Send as beat message (t=b)")
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p.add_argument("--brightness", type=int, help="Brightness (br)")
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p.add_argument("--delay", type=int, help="Delay (dl)")
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p.add_argument("--pattern", help="Pattern name (pt)")
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p.add_argument("--n1", type=int, help="n1 parameter")
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p.add_argument("--n2", type=int, help="n2 parameter")
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p.add_argument("--n3", type=int, help="n3 parameter")
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p.add_argument("--step", type=int, help="step (s)")
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p.add_argument("--name-value", nargs=2, metavar=("NAME", "JSON"), help="Send override under NAME key with JSON object value")
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# SPI params
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p.add_argument("--bus", type=int, default=0, help="SPI bus (default 0)")
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p.add_argument("--device", type=int, default=0, help="SPI device/CE (default 0)")
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p.add_argument("--speed", type=int, default=1_000_000, help="SPI speed Hz (default 1MHz)")
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return p.parse_args()
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def main() -> int:
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args = parse_args()
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payload = build_payload_from_args(args)
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spi = SPIMasterTest(bus=args.bus, device=args.device, max_speed_hz=args.speed)
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try:
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spi.send_json(payload)
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finally:
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spi.cleanup()
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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