Newbie question about cmucam1 communicate with basic stamp

Racoon

Dear all,

I bought a cmucam1 from seattle robotics, according to the datasheet, i solder certain part of the cmucam. I want to use CMUcam1 TTL to communicate with basic stamp. Following by the instruction I connect the RX, TX and groud to basic stamp pin 5 and 7 respectively, after I load the program I could not ligh up the green LED. I am wondering whether I should solder more component to the cmucam1 or anywhere else got mistake.

I use baudrate 9600.

Below is the program I used.

'{$STAMP BS2}
PAUSE 1000

SEROUT 5, 84, [noparse][[/noparse]"RS", CR]
PAUSE 1000
DEBUG "reset",CR

main:

SEROUT 5, 84, [noparse][[/noparse]"L1 1",CR]
PAUSE 1000
DEBUG "green LED on",CR

SEROUT 5, 84, [noparse][[/noparse]"L1 0",CR]
PAUSE 1000
DEBUG "green LED off",CR

GOTO main

I attached one side photo of cmucam1.

Thank you very much for your help.

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The truth in physics is changed with time.

W9GFO

Look at the schematic. You are it looks like you are missing the resistors that are in series with the led.

Why are so many parts missing?

Rich H

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The Simple Servo Tester, a kit from Gadget Gangster.

Post Edited (W9GFO) : 5/11/2010 10:10:28 AM GMT

Racoon

The resistors are in the other side 2X270ohm, and 3X4.7kohm

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The truth in physics is changed with time.