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Elitech rc4 data access tool and library.

Project description

Elitech RC4 / RC5 DataReader


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

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

RC-5+(Note the plus "+" sign). is not supperted.

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

This is an unofficial tool. This tool was made by monitoring and guessing serial communication data. That is why this software is not perfect.



  1. Install Serial Port Driver.

  2. install dependencies.

$ python install

OR pip

$ pip install elitech-datareader
  1. Linux: Add yourself to the dialout group. Restart required.
sudo usermod -a -G dialout $USER


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
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
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

Get device information

get device information.

$ elitech-datareader --command devinfo --encode=utf8 /dev/tty.SLAB_USBtoUART
last_online=2015-06-09 01:13:13
current=2015-06-09 07:42:00
start_time=2015-06-07 13:53:36
user_info=RC-4 Data Logger

user_info is multibytes text. Use --encode option. (default UTF8)

On Elitech Software (Logger Data Management Software V2.0, Rc Logger), user info is encoded various charsets. (GBK, MS932).

$ elitech-datareader --command devinfo --encode=gbk /dev/tty.SLAB_USBtoUART  # for mac os Rc Logger software


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 --encode=utf8 --user_info="UserInfoユーザー情報" /dev/tty.SLAB_USBtoUART

user_info is multibytes text. Use --encode option. (default UTF8)

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()

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

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