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RS232 data status LED?

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ben_9413

New Member
Hi guys,

Problem: I have to connect a LED to the Tx channel of a RS232 so that when indications would be given when data is being txmitted.

I have in mind a non-inverted buffer in series with resistor and indication LED...the problem is that I don't know rather or not a 5VDC as VCC would be sufficient? Any ideas?

Buffer: Tosiba TC74HC07AP

Cheers all,

Ben
 

Nigel Goodwin

Super Moderator
Most Helpful Member
5V is plenty to run an LED. But you can simply connect an LED and series resistor directly to the RS232 data lines - you can buy commercial testers which do just that - no power required, simply plug it in line, with LED's for TX, RX, and handshake lines.
 
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