Hi all, i have a rather weird issue : on a breadboard i have connected a MAX3223 TTL-RS232 converter to test my setup. On the TTL lines, i have added a 2.2K resistor and a LED . The long wire from the LED goes the 3.3v , the short goes to the resistor. Now, the goal is to see if there is any seria…

LED blink on MAX3232 - Arduino Nano ESP

system Closed April 20, 2025, 6:05pm 5

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