Difference between revisions of "MalaHW"

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[[http://www.ultimarc.com/images/Pacdrive.jpg|thumb|right|The PAC-DRIVE circuit board]]
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[[image:malahw.jpg|thumb|right|Mala Hardware circuit board]]
  
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Low-cost driver board for devices such as LEDs, solenoids, lamps etc
 
  
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Ideal for use with our UltraLux illuminated pushbuttons
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MaLa Hardware enables you to connect a lcd from 1 x 16 up to 4 x 40 characters and up to 64 leds to your cab. The lcd can display various informations from games, gamelists and more and the leds can be used to light your buttons as shown on the pictures above controlled by game information. MaLa Hardware itself is connected by usb to your computer. Two versions are available:
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• Lcd and 16 leds
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• 32 leds
  
  
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Will drive up to 16 standard LEDs with no additional power.
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You can connect one or two boards to your computer and the following combinations are possible:
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Up to 4 boards can be used (more by request). Different IDs available.
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• Lcd and 16 leds (1 board)
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500mA per channel
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• 32 leds (1 board)
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500mA total current without external power supply. Higher current draw will require additional power.
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• Lcd and 48 leds (2 boards)
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5 volt outputs without external power supply.
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• 64 leds (2 boards)
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Up to 48 volt outputs with external power supply.
 
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Open-Source software. No driver required.
 
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Downloadable example VB application.
 
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C++ code on request.
 
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Support as a LED driver for several MAME front-ends soon.
 
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Click for Order Page
 
  
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Basic Connection Method
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http://mala.arcadezentrum.com/hardware.html
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The picture below shows a schematic representation of 3 LEDs connected. These are 5 volt LEDs as used in our UltraLux buttons
 
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In actual usage the connections would be made using quick-disconnects to the button lampholder.
 
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up to 16 can be connected in this way. No external power required.
 
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To simplify connection, for the power "daisy-chain" you can use our pre-made daisy-chain harness.
 
  
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http://www.members.optushome.com.au/backwash/malahw
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Advanced Connection Methods
 
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For connecting devices requiring a higher total current than 500mA for all devices, or devices requiring more than 5 volts,
 
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Instead of connecting the red power "daisy chain" to the "+" connection on the PCB, simply connect to an appropriate voltage source.
 
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For example a PC disk power connector will provide 12 volts through the yellow wire.
 
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When powering from a PC, there is no need for a ground wire since the ground return is via the shield of the USB cable.
 
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IMPORTANT: When connecting solenoids you must connect a diode across each coil to eliminate "back-EMF" discharge through the driver board. The diode is connected with the end marked with a line to the power-supply end of the coil.
 
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Software
 
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Click here to download sample VB application with source.
 
  
 
==See Also==
 
==See Also==

Latest revision as of 08:47, 5 December 2013

Mala Hardware circuit board


MaLa Hardware enables you to connect a lcd from 1 x 16 up to 4 x 40 characters and up to 64 leds to your cab. The lcd can display various informations from games, gamelists and more and the leds can be used to light your buttons as shown on the pictures above controlled by game information. MaLa Hardware itself is connected by usb to your computer. Two versions are available: • Lcd and 16 leds • 32 leds


You can connect one or two boards to your computer and the following combinations are possible: • Lcd and 16 leds (1 board) • 32 leds (1 board) • Lcd and 48 leds (2 boards) • 64 leds (2 boards)

http://mala.arcadezentrum.com/hardware.html

http://www.members.optushome.com.au/backwash/malahw

See Also

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