From: Kenneth Nemire <knemire@netcom.com>
Subject: TECH         : TiNi/Mondo-tronics tactor
Organization: NETCOM On-line Communication Services (408 241-9760 guest)
Keywords: tactile stimulation


I have a single tactor connected to the electronics box supplied
by Mondo-tronics.  We successfully pulsed the tactor from a PC.
We have not had success from an SGI Indigo and would appreciate
information from someone who has.

We first made a new cable (mini-DIN8 to 1/8 inch stereo plug) to
connect the tactor's e-box to the Indigo.  We used fopen() to open
the port, and fprintf() to write different character data to the 
port.  We obtained different results from the tactor/e-box depending
on what character was sent (on the PC, any character results in the same
pulse).  We finally settled on sending a (decimal) 0 followed by a 7 to
get a single pulse of fairly strong strength (sending other characters
resulted in multiple or no pulses).  Unfortunately, the pulse we
getis unreliable.

Does anyone have a better understanding of this device or any
suggestions for improving its performance from an Indigo?

Ken Nemire
knemire@netcom.com