Hi Wouter,
The circuit is figure 6 on this page
http://www.rentron.com/Infrared_Communication.htm
I feed the 40khz carrier and the serial data into a
74HCT132 2 input NAND Schmitt Trigger.


>>  Hi, I have an IR xmitter sending the string "1234567890abcxyz" over my
>> setup. (F628 - PWM 40khz carrier, RB2 TX 1200 baud).
>> The receiver is a F84 hooked to an LCD with the RX hooked directly to a
>> GP1U26x module.
>
>How do you modulate the data onto the carrier? I don't know the Sharp
>receiver, but the ones I know are not designed to handle a 'continuous on'

>signal. They need 'off priods' in the signal, like all IR codes have. Maybe

>your signal oversteers the receiver?
>
>Wouter
>
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