Transmitting a Byte Over Infrared to RS 232

[N468989]

does anyone know how what type of circuit i need to transmit a signal over InfraRed. the signal i want to transmit is for example one byte -> 1010 1010

the byte sent will be sent to a RS 232 port

i have a shift register with the data ready to be sent

i know that i need a IR photodiode and a phototransistor

:. sorry double posting

 

[Danger]

Before anyone gives Tko grief about double-posting, it was my suggestion that (s)he resubmit this here after I ran across it in General Physics. This seems to be a more appropriate location.

 

[ravenprp]

To transmit a byte over infrared to an RS 232 port, you will need a circuit that can convert the digital signal from the shift register into an infrared signal. This can be achieved using an IR LED (infrared light-emitting diode) and a phototransistor.

The IR LED will emit an infrared light signal, which will be received by the phototransistor. The phototransistor will then convert the light signal back into a digital signal, which can be sent to the RS 232 port.

To ensure that the byte is transmitted accurately, you may also need to incorporate a modulation technique, such as pulse-width modulation (PWM), into your circuit. This will help to encode the data into the infrared signal and ensure that it is received correctly by the phototransistor.

Overall, the circuit you will need for transmitting a byte over infrared to an RS 232 port will consist of an IR LED, a phototransistor, and potentially a modulation technique. It is important to carefully design and test your circuit to ensure reliable transmission of the data.