Joulescope sample script

import joulescope

# Adjust logging level of Joulescope to avoid spamming the log
logging.getLogger("joulescope").setLevel(logging.WARNING)
logging.getLogger("jsdrv").setLevel(logging.WARNING)


# Configure joulescope
js = joulescope.scan_require_one(config="auto")
js.open()
js.parameter_set("source", "on")
js.parameter_set("i_range", "auto")


def joulescope_get_data():
    """Callback function to get current and voltage data from Joulescope.

    Packs it to a dictionary for easy storage as CSV.
    """
    try:
        data = js.read(contiguous_duration=0.1)
    # Atempt to re-open joulescope in case of error
    except:  # pylint: disable=bare-except
        js.open()
        data = js.read(contiguous_duration=0.1)

    current, voltage = np.mean(data, axis=0)

    timestamp = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
    return {"timestamp": timestamp, "current": current, "voltage": voltage}


# Hand of logging data to DictLogger in separate thread. Set interval to 0.9 as callback blocks for 0.1 second
joulescope_logger = DictLogger(
    joulescope_get_data, output_path=os.path.join(OUTPUT_FOLDER, JOULESCOPE_LOG_FILENAME), interval=0.9
)

joulescope_logger.start_logging()



## Do some testing for 30 hours

# Wrap up
joulescope_logger.stop_logging()
js.close()