PyRow

NOTE: This code has not been thoroughly tested and may not function as advertised. This documentation my contain mistakes or incomplete information. Please report and findings to the author so that they may be addressed in a stable release.

ABOUT

PyRow is python code that allows one to interact with a Concept 2 Rowing Ergometer PM3 or PM4 monitor using python. PyRow sends and receives information from the Ergometer using csafe commands or built in functions (listed below). The goal of PyRow is to allow for multiple platforms to have easy access to the Ergometer.

For an explanation of the csafe commands please use the following documentation:

Site: http://www.newhavenrowingclub.org/pyrow/

LICENSE

Licensed under the Simplified BSD License.

REQUIREMENTS

PyRow has been tested on an Ubuntu machine with the software versions listed below, PyRow should be able to work on any machine that can run Python & PyUSB but this has not been tested and confirmed.

Python

libusb

  sudo apt-get install libudev-dev libusb-dev python

Walac's PyUSB

  git clone git@github.com:walac/pyusb.git
  cd pyusb
  sudo python setup.py install

Other versions of the PyRow library have been tested on Windows.

INSTALLING

After the software has become stable the software will be packaged as a module. For now copying pyrow.py, csafe_cmd.py, and csafe_dic.py into the same directory as your code will work.

Include PyRow in your code with the following line of code: import pyrow

RUNNING

pyrow.find() - returns an array of all the ergs currently connected to the computer

pyrow.pyrow(erg) - creates an object for communicating with the erg, erg is obtained from the pyrow.find() function ex: creating a pyrow object from the first erg found ergs = pyrow.find() erg = pyrow.pyrow(ergs[0])

pyrow.pyrow.getStatus() - returns status of machine as a number

0 = 'Error'
1 = 'Ready'
2 = 'Idle'
3 = 'Have ID'
4 = 'N/A'
5 = 'In Use'
6 = 'Pause'
7 = 'Finished'
8 = 'Manual'
9 = 'Offline'

pyrow.pyrow.getMonitor(forceplot=False) - returns data from the monitor in dictionary format, keys listed below with descriptions

time = Monitor time in seconds
distance = Monitor distance in meters
spm = Strokes per Minute
power = Power in watts
pace = /500m pace
calhr = Calories Burned per Hours
calories = Total Calories Burned
heartrate = Current Heart Rate
status = Machine Status If keyvalue forceplot is set to true
forceplot = Force Plot Data
strokestate = Stroke State

pyrow.pyrow.getForcePlot() - returns force plot data and stroke state in dictionary format, keys listed below with descriptions

forceplot = Force Plot Data (array varying in length from 0 to 16)
strokestate = Stroke State
status = Machine status

pyrow.pyrow.getWorkout() - returns data related to the overall workout in dictionary format, keys listed below with descriptions

userid = User ID
type = Workout Type
state = Workout State
inttype = Interval Type
intcount = Workout Interval Count
status = Machine Status

pyrow.pyrow.getErg() - returns non workout related data about the erg in dictionary format, keys listed below with descriptions

mfgid = Manufacturing ID
cid = CID
model = Erg Model
hwversion = Hardware Version
swversion = Software Version
serial = Ascii Serial Number
maxrx = Max Rx Frame
maxtx = Max Tx Frame
mininterframe = Min Interframe
status = Machine status

pyrow.pyrow.setClock() - sets the clock on the erg equal to the clock on the computer

pyrow.pyrow.setWorkout() - if machine is in the ready state function will set the workout and display the start workout screen, allowable parameters are listed below (the current PM SDK does not allow for setting invervaled workouts)

Choose one

program=programNumber - number from 0 to 10 (15 if the log card is installed), 1 thru 10 relate to workouts saved in the monitor.

time=[hours, minutes, seconds] - Min allowable is 20 sec & max allowable is 9:59:59.

distance=meters - Min allowable is 100 and max allowable is 20000.

Not required, can only chose if time or distance is set

split=seconds - If time is set or meters if distance is set, must be less than the total goal and greater than or equal to 20 seconds or 100 meters, cannot occur more then 30 times during the workout, time has a resolution of .01 sec

Not required, chose one

pace=seconds - Seconds for pace boat to complete 500 meters (/500m) powerpace=watts - Watts for pace boat to generate calpace=cal - Calories per hour for pace boat to burn

ex: set a 2000m workout with a 500m split and a pace boat with a 2 minute pace (120 seconds)

erg.setWorkout(distance=2000, split=500, pace=120)

pyrow.pyrow.send(command) - sends a csafe command to the rowing machine and returns the result. The command is an array and results are returned as a dictionary with the key being the csafe command name

ex: setting a workout of 10 minutes with a split of 1 minute (60 seconds)

command = ['CSAFE_SETTWORK_CMD', 0, 10, 0,'CSAFE_PM_SET_SPLITDURATION', 0, 60]
erg.send(command)

ex: getting pace and printing it out

command = ['CSAFE_GETPACE_CMD',]
result = erg.send(command)
print("Stroke Pace = " + str(result['CSAFE_GETPACE_CMD'][0]))
print("Stroke Units = " + str(result['CSAFE_GETPACE_CMD'][1]))

FILES

strokelog.py - an example program that records time, distance, strokes per min, pace, and force plot data for each stroke to a csv file

statshow.py - an example program that displays the current machine, workout, and stroke status

pyrow.py - file to be loaded by user, used to connect to erg and send/receive data

csafe_cmd.py - converts between csafe commands and byte arrays for pyrow.py, user does not need to load this file directly

csafe_dic.py - contains dictionaries of the csafe commands to be used by csafe_cmd.py, user does not need to load this file directly

Aeva / PyRow