nbus-client-api/examples/example_bridge.py

import sys
from nbus_hal.nbus_serial.serial_port import *
from nbus_api.nbus_bridge import NBusBridge
from nbus_hal.nbus_serial.serial_config import *

# example config
config = {
    "port_name": "COM3",
    "baud": NBusBaudrate.SPEED_921600,
    "parity": NBusParity.NONE,
    "timeout": 5.0,
    "flush_delay": 3.0,
    "request_attempts": 1,
    "enable_log": False
}

BRIDGE_ACQUIRE_WAIT = 0.5
BRIDGE_STREAM_INTERVAL = 4.0

if __name__ == "__main__":    # create port
    port = NBusSerialPort(NBusSerialConfig(**config))
    # create module
    bridge = NBusBridge(port, BRIDGE_ACQUIRE_WAIT)

    # run commands
    try:
        # initialize bridge
        #bridge.init()

        # test bridge get
        print("<<TEST BRIDGE GET>>")
        print("CMD GET INFO: ", bridge.cmd_get_info())
        print("CMD GET SLAVES: ", bridge.cmd_get_slaves())
        print("CMD GET FORMAT: ", bridge.cmd_get_format())
        print("CMD GET DATA: ",bridge.cmd_get_data())

        # test bridge set
        print("<<TEST BRIDGE SET>>")
        #print("CMD SET RESET: ",bridge.cmd_set_reset())

        print("<<TEST BRIDGE STREAMING>>")

        print(f"START STREAM FOR {BRIDGE_STREAM_INTERVAL} SECONDS")
        bridge.start_streaming()
        time.sleep(BRIDGE_STREAM_INTERVAL)


        #print("FETCH STREAM CHUNK:", bridge.fetch_stream_chunk())
        print(f"WAIT FOR {BRIDGE_STREAM_INTERVAL} SECONDS")
        time.sleep(BRIDGE_STREAM_INTERVAL)

        print(f"STOP STREAM AFTER {2*BRIDGE_STREAM_INTERVAL} SECONDS")
        bridge.stop_streaming()

        print("FETCH STREAM CHUNK:", bridge.fetch_stream_chunk())

        print("SAVE FULL STREAM:")
        df = bridge.fetch_full_stream()
        df.to_csv("data.csv", index=False)

    except Exception as e:
        print(str(e))

    finally:
        port.flush()
        port.close()