Matrix Orbital HTT Series User manual

HTT Series
For all variants of the HTT35A, HTT50A, HTT70A and HTT104A
Quick Start Guide
Revision 1.2

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Contents
Revision History .............................................................................................................................................................2
Introduction...................................................................................................................................................................3
Features.....................................................................................................................................................................3
Functional Diagram ...................................................................................................................................................3
Headers..........................................................................................................................................................................4
HDMI Port..................................................................................................................................................................4
Mini USB....................................................................................................................................................................4
Barrel Jack .................................................................................................................................................................4
External Power ..........................................................................................................................................................4
Getting Started ..............................................................................................................................................................5
Windows ...................................................................................................................................................................5
Raspberry Pi ..............................................................................................................................................................5
TinkerBoard...............................................................................................................................................................5
BeagleBone ...............................................................................................................................................................5
USB Drivers ....................................................................................................................................................................6
Extended Display Information Data (EDID)....................................................................................................................7
Touchscreen ..................................................................................................................................................................7
Troubleshooting ............................................................................................................................................................8
Power....................................................................................................................................................................8
Display...................................................................................................................................................................8
Touch ....................................................................................................................................................................8
Recommended Accessories...........................................................................................................................................9
HDMI Cable ...........................................................................................................................................................9
USB Communication .............................................................................................................................................9
External Power......................................................................................................................................................9
Support ..........................................................................................................................................................................9
Contact ..........................................................................................................................................................................9

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Revision History
Revision
Date
Description
Author
1.2
September 5, 2019
Clarified Raspberry Pi Getting Started section
Divino
1.1
December 1, 2017
Voltage Correction
Divino
1.0
November 6, 2017
First Release
Divino

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Introduction
The HTT series offers full colour TFT displays, with a simple HDMI and USB plug and play interface. The HTT can be
configured with a touch screen, providing control without the need of a mouse or keyboard. Designed with
industrial applications in mind, the HTT is perfect for panel mounted applications and HMI interfaces.
Features
Compatible with Windows and Linux hosts, including:
oRaspberry Pi
oBeagleBone
oTinkerBoard
Plug and Play
USB for touch screen, HMI mouse interface
Upgradable touch driver firmware
DVI/HDMI interface
Automatic resolution detected provided by EDID
Low profile mounting holes
Industrial 5-35V power input (-VPT) option
Available in:
oNon-touch,
oResistive touch
oCapacitive touch
Functional Diagram
Figure 1: HTT Block Diagram

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Headers
HDMI Port
Recommended Mate: HDMI3FT or HDMI6FT Cable
When properly connected, the HDMI cable will provide 5V at 55mA (minimum) for
the purpose of reading the display’s EDID settings.
The HTT uses HDMI/DVI 1.0 and is only compatible with unencrypted video signals.
HDCP video signals are not supported.
Figure 2: HDMI Header
Mini USB
Recommended Mate: EXTMUSB3FT Cable
Up to 500mA of power can be provided through the Mini-USB header to power the
HTT. The USB header must be connected to the host in order for the touch screen to
be functional, as touch communication occurs over USB.
The Mini USB header is also used to access the HTT’s touch firmware.
Figure 3: Mini-USB Header
Barrel Jack
Recommended Mate: PWR-ACDC-5V2A
A power adaptor may be applied to any HTT Series display, providing power to
the unit. When choosing an adaptor, please ensure it is a center positive model
that conforms to the voltage and current requirements of your display. Please
consult the Power Consumption section for details.
For the HTT70A, it is suggested that additional power is supplied through the
barrel jack or external power header.
Figure 4: Barrel Jack Header
External Power
Additional power can be applied to the display through the external power
header. Voltages between 5V-35V can be applied using this header.
For the HTT70A, it is suggested that additional power is supplied through the
barrel jack or external power header
Figure 5: External Power Header

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Getting Started
When connecting your HTT display, power must first be applied through the USB header, the optional barrel jack
or the optional external power header. Once powered, connect the HTT to your source HDMI cable
Windows
When connected to Windows, the HTT’s resolution will be automatically detected and set through EDID. The HTT
display should immediately appear in display settings. No additional software setup should be required.
Raspberry Pi
Before the display can be used with a Raspberry Pi unit, some setup will be required. The HDMI resolution will
have to be configured through the config.txt file (located in /boot/config.txt). We suggest that you edit this file
remotely via SSH, or edit the file on a separate PC by powering the Pi down, ejecting the micro SD card, and
inserting it into another computer’s card reader.
To force the Raspberry Pi to use the HTT’s resolution, the config.txt file must be modified to include the following:
hdmi_group=2
hdmi_mode=87
The resolution will also have to be specified. The setting changed will be dependent on which display is used.
Table 1: HDMI Custom commands
Display
Command
HTT50A
hdmi_cvt= 800 480 60 6 0 0 0
HTT70A
hdmi_cvt= 800 480 60 6 0 0 0
HTT104A
hdmi_cvt= 1024 100 60 6 0 0 0
Finally, if the display is being powered solely through the USB header, the Raspberry Pi can be configured to
increase how much current can be output through USB.
Max_usb_current=1
The following is an example of what modifications need to be made to configure the Raspberry Pi to work with a
HTT50A/HTT70A
hdmi_group=2
hdmi_mode=87
hdmi_cvt= 800 480 60 6 0 0 0
Max_usb_current=1
TinkerBoard
The HTT will be compatible with TinkerOS-Debian. Once connected, the Tinkerboard will autodetect the HTT’s
display settings. No further software configuration is required.
The HTT is not compatible with TinkerOS-Android Marshmallow.
BeagleBone
The BeagleBone board will autodetect the HTT’s EDID display settings automatically. No further software
configuration is required.

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USB Drivers
Once the HTT is properly installed in windows, 3 new devices will be present in Device manager.
HID-Compliant Mouse
USB Composite Device
WinUsb Device
Table 2: HTT Device VID/PID
VID
0x1B3D
PID
0x14C2
Figure 6: HTT USB Driver Listing

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Extended Display Information Data (EDID)
The HTT’s on-board EDID comes preconfigured, so users won’t have to worry about setting up their screen
resolution or display timings. Once plugged in, the EDID will automatically detect the HTT display resolution.
EDID settings can be accessed through the HTT’s I2C headers. Please find EDID examples below:
static byte[] EDID_HTT50A = {
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x35, 0xE3, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
0xFF, 0x1B, 0x01, 0x03, 0x80, 0x0B, 0x06, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xE4, 0x0C, 0x20, 0x80, 0x30, 0xE0, 0x2D, 0x10, 0x28, 0x30,
0xD3, 0x00, 0x6C, 0x41, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2E,
};
static byte[] EDID_HTT70A = {
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x35, 0xE3, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00,
0xFF, 0x1B, 0x01, 0x03, 0x80, 0x0F, 0x09, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xE4, 0x0C, 0x20, 0x7D, 0x30, 0xE0, 0x2D, 0x10, 0x25, 0x30,
0xD3, 0x00, 0x9A, 0x56, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE1,
};
static byte[] EDID_HTT104A = {
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x35, 0xE3, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00,
0xFF, 0x1B, 0x01, 0x03, 0x80, 0x1A, 0x03, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xC4, 0x09, 0x00, 0x40, 0x41, 0x82, 0xB4, 0x00, 0x28, 0x30,
0xD3, 0x00, 0x08, 0x1A, 0x10, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xEC,
};
Touchscreen
Both the Resistive and Capacitive touch variants of the HTT display comes with a touch driver. In order for the
touch driver to operate properly, the HTT needs to be connected through USB. In addition to supplying power, the
USB header will also allow transfer touch data to the controller board.

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Troubleshooting
Power
To function correctly, the HTT70A must be supplied with the appropriate power. If the power 3V3 LED near the top
right corner of the board is not illuminated, power is not applied correctly. Try the tips below.
HTT devices have specific power requirements. Ensure the correct voltage and sufficient current are
available to your device by consulting your HTT’s Power consumption table.
Check the power cable which you are using for continuity. If you don't have an ohm meter, try using a
different power cable, if this does not help try a different power supply.
Check the power connector in use on your display. If the connector has become loose or you are unable
to resolve the issue, please use the Contact section to reach a friendly Matrix Orbital support
representative.
If your display is showing picture but continuously flickering, your display is not receiving enough power. You’ll
have to apply more power through a powered USB hub, or the optional Barrel jack/external power header. If you
are running a Raspberry Pi, you can configure your USB port to supply more current by editing the config.txt file.
Display
When connected and powered correctly, the display should show picture from edge to edge. There should be no
white lines on the edges of the display. If this is not the case, check out these tips.
If your display shows picture but there are white lines along the edge(s) of the display, your display may
be receiving the incorrect number of pixels. The HTT does not have a resolution scaler, and therefore the
appropriate 800 x 480 resolution must be specified for all the pixels to be used. If you are using a
Raspberry pi, you can configure the config.txt file to force an 800x480 resolution.
Touch
If your display is showing picture but not responding to touch inputs, please check to ensure your USB cable is
properly connected. If the USB LED near the top right corner of the board is not illuminated, the USB connection is
not recognized.

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Recommended Accessories
HDMI Cable
Figure 7: HDMI Cable
Part Number:
HDMI3FT or HDMI6FT
Description:
3ft (1m) or 6ft (2m) HDMI Cable
USB Communication
Figure 8: EXTMUSB3FT
Part Number:
EXTMUSB3FT
Description:
3ft (1m) Mini-B USB Cable
External Power
Figure 9: PWR-ACDC-5V2A
Part Number:
PWR-ACDC-5V2A
Description:
9ft (2.7m) AC to DC power adapter with 2.1mm center positive barrel jack.
Input Voltage: 100-240V AC
Output Voltage: 5V DC @ 2A
AC Plugs Included: North American (NEMA), Europlug (Type C), UK (Type G),
Australia/China/New Zealand/Argentina (Type I)
Support
Phone: [phone]
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Manuals and Drivers: http://www.matrixorbital.ca
Forums: http://www.lcdforums.com/forums
Contact
Sales
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Support
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Online
Purchasing: www.matrixorbital.com
Support: www.matrixorbital.ca