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NEWBIE Use Basic stamp for RS232 control of LCD Projector — Parallax Forums

NEWBIE Use Basic stamp for RS232 control of LCD Projector

WondertwnzWondertwnz Posts: 1
edited 2004-09-15 04:55 in BASIC Stamp
I am trying to find a way to turn the lamp on and lamp off at certain times of day on a Sanyo LCD projector without any human intervention. I have the commands that need to be sent to the unit. Wondering if someone could help me with what parts I would need and some basic information on programming.
Thanks
larry

Comments

  • Gerry ShandGerry Shand Posts: 45
    edited 2004-09-15 04:55
    Hi Larry:

    One thing you will need is an interface chip to take the serout signals of the stamp (0, +5VDC) and convert them to the normal RS-232 voltages. The MAX232 is one chip that comes to mind and requires four electrolytic capacitors.

    If the projector is fat and happy with just accepting inputted data, that will simplify the program code requirements

    Should be a neat little project once it is done. Code for the various commands then becomes a matter of sending the serial strings of data either through pushbuttons, a timer chip attached to the stamp, or the use of some other external interface.

    Food for thought. Let me know if you need any further information.

    Regards,

    Gerry Shand
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