elitech-datareader 0.9.4

Elitech rc4 data access tool and library.

Description

This software is a data collecting tool, written in python for Temperature data logger RC-4/RC-5.

Elitech RC-4 / RC-5 is a reasonable data logger.

Enables to use RC-4/RC-5 on Mac, Linux, Windows.

Requirements

• Python2.7, 3.4, 3.5

• Serial Port Driver

  • (for RC-4) Silicon Labs CP210x USB-UART bridge VCP driver. http://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx

  • (for RC-5) CH340 Serial Driver MacOSX (mac driver is unstable)

• pySerial (data access library for serial port)

Setup

1. Install Serial Port Driver.

   • for RC-4: CP210x USB-UART bridge VCP driver. Download and install CP210x driver for your platform. http://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx

   • for RC-5: CH340 Serial Driver MacOSX(mac driver is unstable)

2. install dependencies.

$ python setup.py install

OR pip

$ pip install elitech-datareader

Example(Script)

Initialize device.

initialize. rec interval 10sec. set clock now.

$ elitech-datareader --command simple-set --interval=10 /dev/tty.SLAB_USBtoUART # RC-4 on macosx
                                                      # /dev/tty.wchusbserialfd1430 # RC-5 on macosx

Get data

Press stop button for stop recording.

output to stdout.

$ elitech-datareader --command get /dev/tty.SLAB_USBtoUART
6
1   2015-06-07 13:53:36 25.0
2   2015-06-07 13:53:46 25.1
3   2015-06-07 13:53:56 25.1
4   2015-06-07 13:54:06 25.1
5   2015-06-07 13:54:16 25.1
6   2015-06-07 13:54:26 25.1

Elitech device gets the data in units called “Page size”. Page size is determined by the device model. RC4 is 100 and RC5 is 500.

You can directly specify the page size, with an optional argument –page_size. (for debug)

$ elitech-datareader --command get --page_size=500 /dev/tty.SLAB_USBtoUART
6
1   2015-06-07 13:53:36 25.0
2   2015-06-07 13:53:46 25.1
3   2015-06-07 13:53:56 25.1
4   2015-06-07 13:54:06 25.1
5   2015-06-07 13:54:16 25.1
6   2015-06-07 13:54:26 25.1

Get latest data

$ elitech-datareader --command latest /dev/tty.SLAB_USBtoUART
6   2015-06-07 13:54:26 25.1

$ elitech-datareader --command latest --value_only /dev/tty.SLAB_USBtoUART
25.2

Get device information

get device information.

$ elitech-datareader --command devinfo /dev/tty.SLAB_USBtoUART
station_no=3
last_online=2015-06-09 01:13:13
temp_unit=TemperatureUnit.C
alarm=AlarmSetting.NONE
work_sts=WorkStatus.STOP
lower_limit=-30.0
tone_set=ToneSet.NONE
rec_count=272
upper_limit=60.0
delay=0.0
stop_button=StopButton.ENABLE
current=2015-06-09 07:42:00
start_time=2015-06-07 13:53:36
rec_interval=00:00:10
temp_calibration=-1.5
user_info=RC-4 Data Logger
dev_num=9900112233

Parameter set

set device parameter.

$ elitech-datareader --command set --interval=10 --upper_limit=60.0 --lower_limit=-30.0 \
--station_no=1 --stop_button=y --delay=0.0 --tone_set=y --alarm=x --temp_unit=C \
--temp_calibration=-1.5 --dev_num=1234567890 --user_info="RC4 Data Logger" /dev/tty.SLAB_USBtoUART

Debug raw communication

Send raw request data. receive response data.

$ elitech-datareader --command raw --req="CC 00 06 00 D2" -res_len=4 /dev/tty.SLAB_USBtoUART

response length=4
55 01 01 32

Note (serial port)

If comunication unstable, then try --ser_baudrate and --ser_timeout option.

$ elitech-datareader --command devinfo --ser_baudrate 115200 --ser_timeout=10 /dev/tty.SLAB_USBtoUART

Example(Python module)

Get device infomation.

import elitech

device = elitech.Device("/dev/tty.SLAB_USBtoUART")
devinfo = device.get_devinfo()
print(devinfo.info)

Get record data

import elitech

device = elitech.Device("/dev/tty.SLAB_USBtoUART")
body = device.get_data()
for elm in body:
    print elm

Update param

device = elitech.Device("/dev/tty.SLAB_USBtoUART")
devinfo = device.get_devinfo()  # get current parameters.

param_put = devinfo.to_param_put()  #convart devinfo to parameter
param_put.rec_interval = datetime.time(0, 0, 10)    # update parameter
param_put.stop_button = elitech.StopButton.ENABLE   # update parameter

param_put_res = device.update(param_put)    # update device