This is the Intelligent Sensing fork of pytrigno.
TrignoEMG and TrignoAccel provide access to data served by Trigno
Control Utility for the Delsys Trigno wireless EMG system. TCU is Windows-only,
but this class can be used to stream data from it on another machine. TCU works
by running a TCP/IP server, with EMG data from the sensors on one port,
accelerometer data on another, and commands/responses on yet another. These
ports are configurable in the TCU GUI. The TCU program must be running before
a TrignoEMG or TrignoAccel object is created.
EMG data is sampled at 2000 Hz and is in volts (by default) with a range of ±0.011 V. This can be converted to millivolts or normalized by the max range to get a range of ±11 mV or ±1 (unitless), respectively.
Accelerometer data is sampled at 148.1 Hz and is in g.
You can test operation of the device by running examples/check_trigno.py to
see if things are set up correctly -- if no errors occur, it should be ready to
go.
Tested with Delsys Trigno Control Utility v. 3.5.1. The software can be downloaded from the Delsys support site.
Here is a minimal example that initiates a connection to the server, reads data for 1 second using 200 samples per read (i.e., 100 ms), and then closes the connection.
from pytrigno import TrignoEMG
t = TrignoEMG(channels=[1,2], samples_per_read=200, zero_based=False, units='V', data_port=50041)
t.start()
for _ in range(10):
t.read()
t.stop()