Max 232 Rs232 interface

Thread Starter


Joined Nov 17, 2016
Hi Everyone !

I have an IR LED, phototransistor, max 232 and RS232. Actually, i try to make the connections of these. First of all, I know that I should use an ADC before max232.(I am right ?). I need to use ADC for phototransistor. But, I consider that for IR LED, should I use DAC after RS232's output ?

As a result, can anybody help to establish the exact circuit ? :/

Predicted circuit schematic is attached. Let' s make it work :)