USER'S MANUAL
CAN bus LCD Display
TRI66.003 ver 2
10 April 2011
1 INTRODUCTION
T is document details t e interface, installation, and usage requirements for t e
Tritium CAN bus LCD display product. It also provides information on
programming t e device to implement custom functionality.
T e LCD display provides an easy way to s ow telemetry and control information
for a Tritium WaveSculptor motor controller. T e LCD display comes
programmed from t e factory configured wit sensible default values t at will
work in a plug-and-play manner wit a motor controller.
T e microcontroller firmware for t e device (in 'C') is available on t e Tritium
website under an open-source license, as are t e ardware sc ematics and
component overlays.
2 DEVICE OVERVIEW
T e LCD display provides a 3.5 digit 7-segment liquid-crystal interface to s ow
numbers from -1999 to 1999, wit selectable decimal point position. Up to four
different variables can be c osen to be displayed, one at a time.
T e display receives data and power via a CAN bus running at up to 1
Mbit/second, wit t e factory default at 500kbit/sec. Alteration of eit er t e bit
rate or t e addresses for various data types currently requires reprogramming
t e microcontroller, alt oug ardware support does exist to allow remote
configuration in t e future.
Four LEDs are provided on t e front panel of t e device to indicate w ic variable
is currently being displayed.
Wit appropriate modification of t e firmware, t e display is capable of reading
and displaying any variable on t e CAN bus. It is not only restricted to Tritium
devices.
3 HARDWARE
3.1 FRONT PANEL
An ad esive decal protects t e front of t e LCD and provides a single pus button
switc to select between display variables. It is backed by a 0.8mm t ickness
stainless steel plate to provide a mec anically strong mounting surface.
3.2 LABELS
Four transparent windows are present in t e decal to allow placement of a paper
label be ind t e decal. T is label is inserted at t e factory to matc t e four
variables c osen for display, and once in place cannot be removed.
If you will be programming t e display wit your own firmware, please specify
t at your display be delivered unassembled, so t at you can insert your own
labels once you ave finalised your firmware modifications.
3.3 POWER INPUT
Power for t e display needs to be supplied along t e CAN bus cable. T e display
contains an internal regulated power supply and will operate successfully wit a
supply of between 9V and 15V DC. T e display uses less t an 20mA w en
operational.
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