Stamp2SX Controling HD Projector

JasonT

Hello all!

I am trying to control on/off and input source on a Panasonic Projector via rs232.

tp.panasonic.com/pub/Panasonic/Drivers/PBTS/manuals/OM_PT-AX200232C.pdf (3pages)

The only serial hacking I have done in the past was with a quad servo controller from a PC running homeseer, which worked good, but nothing like this...

Anyway, I have connected only ground and RX on the projector to the stamp, do I need to have a line back from the projector to the stamp? Flow Control? Start Stop Sync????

This is the simple test program I am running, it goes through a st232(??) that boosts it to rs232, tested on a serial LCD display at 9600

Any Pointers?

' {$STAMP BS2sx}

main:

SEROUT 1, 240, [noparse][[/noparse]"STXPONETX"]                'turn it on
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]"STXISS:YUVETX"]            'switch to component
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]"STXISS:SVDETX"]            'switch to svideo
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]"STXISS:HD1ETX"]            'switch to HDMI 1
SLEEP 30
SEROUT 1, 240, [noparse][[/noparse]"STXPOFETX"]              'if nothing is on, turn the projector off.

END

Regards,

JasonT

Zoot

No flow control, but you might want the RX -- the app note for the projector says that you should wait for the response for the projector before sending next command. Baud should be 9600, no parity, one stop bit. I don't have a Stamp manual in front of me to double check your baud parameter for your Stamp, sorry.

Also, your STX and ETX are not right -- the app note says it's a ONE BYTE STX and one byte ETX -- that should have been a clue (the way you have it, "STX" is 3 bytes, as is ETX).

STX and ETX are actually ascii "characters" -- single bytes. STX is hex $02, ETX is hex $03, so a proper command string might be:

STX CON $02
ETX CON $03

SEROUT 1, 240, [noparse][[/noparse]STX, "PON", ETX] 'turn it on
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]STX, "ISS:YUV", ETX] 'switch to component
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]STX, "ISS:SVD, ETX] 'switch to svideo
PAUSE 5000
SEROUT 1, 240, [noparse][[/noparse]STX, "ISS:HD1", ETX] 'switch to HDMI 1
SLEEP 30
SEROUT 1, 240, [noparse][[/noparse]STX, "POF", ETX] 'if nothing is on, turn the projector off

Cool idea controlling a projector from a Stamp...

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
When the going gets weird, the weird turn pro. -- HST

1uffakind.com/robots/povBitMapBuilder.php
1uffakind.com/robots/resistorLadder.php

JasonT

Thanks a bunch, I did not know about $02 and $03 I changed that and it almost works...

The on and off work , but the switch input lines don't

I tried both,

SEROUT 1, 240, [noparse][[/noparse]STX, "ISS:YUV", ETX]

and

SEROUT 1, 240, [noparse][[/noparse]STX, "ISS",58,"YUV", ETX]

Pointers?

kelvin james

Might be a typo on your post, from looking at the pdf the command is IIS, not ISS

JasonT

Good Job Kelvin!

That was it, who would have thought that Input Signal Select would be abbreviated IIS??

Thanks to all, now the projector switches to the correct source based on the audio input selected on the amp.

Jason