c2api

C example for talking to Concept2 ergometers over USB independent of the Concept2 SDK libraries.

Why?

• To understand how to talk to Concept2 ergs.
• Simple reference for the CSAFE protocol.
• Absence of simple command line application for talking to ergs.

Status

• All commands from the spec are in.
• API is pretty loose and needs more work.
• Implemented commands in the CLI app are tested; others should work.

Specification

Based on the Concept2 Communication Interface Definition 0.15 available in the Concept2 SDK.

Dependencies

• hidapi for USB HID interface.

Platforms

• Builds on OS X.
• Should build on Linux.

Building

$ # install hidapi
$ export HIDAPI_INCDIR=/path/to/hidapi/include
$ export HIDAPI_LIBDIR=/path/to/hidapi/lib
$ make

Usage

Set time of monitor to local time:

$ ./c2 -s

Set workout time of 0:15:00:

$ ./c2 -r -t 0:15:0 -p 0 -y idle -y haveid -y inuse

Set workout distance of 500m:

$ ./c2 -r -d 500 -p 0 -y idle -y haveid -y inuse

Get erg and workout info:

$ ./c2 -g erg -g workoout

Go back to ready state:

$ ./c2 -y finished -y ready

Help:

$ ./c2 -h

Inspiration:

• easy-erg
• PyRow