Minibeamer

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Minibeamer
NoPicture.png
Participants Dennis
Skills soldering, Arduino, Optics
Status Dormant
Niche Electronics
Purpose Fun
Tool No
Location
Cost
Tool category

Minibeamer

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Introduction

With some lenses, an small LCD or TFT screen, a bright LED and some driving electronics it should be viable to build a device capable of projecting stuff on your wall. Note: The dutch pseudo-anglicism "beamer" means video projector.

2.2" TFT

insctructable for the screen I have

Old stuff for Nokia display

The one I've got is a 'type 2'.

  • Connecting the display to a Raspberry Pi: [1]

Cabling

I could'n find a male DB25 connector so I checked whether a cable I had lying around would be useful.

Male-male DB25 (LapLink Cable?)

PCPARPORT OTHEREND
PIN2=D0 PIN15
PIN3=D1 PIN13
PIN4=D2 PIN12
PIN7=D5 NC
PIN9=D7 NC

Since PIN7 is not connected this isn't going to work :(

Parallel floppy cable

Next candidate was a short cable normally used to connect the floppy drive of an Olivetti Echos Pentium 1 laptop. Again: some pins that I needed weren't connected.

Parallel printer cable

This one looks promising according to http://www.lammertbies.nl/comm/cable/parallel.html I don't own the connector that fits the 36 pins Centronics connector so I'll cut up the cable and connect the wires directly to the resistors.

 
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