4-channel RS232 multiplexer

Development Other Hardware Development
1

4-channel RS232 multiplexer with individual power selection and switches. Channel selection via XP2, power control via XP7 (high level to switch off), and JMP2..JMP5 (3.3V/5V):


Project files (KiCAD/Gerber): ul_comm_rs232_mux-01.tgz

2

You have a lot of serial things to talk to?

3

You have a lot of serial things to talk to?

3 in recent project - GSM, GPS, and serial ADC/DAC tensometric module.

4

tormentor:

You have a lot of serial things to talk to?

3 in recent project - GSM, GPS, and serial ADC/DAC tensometric module.

I think I would have gone with a mega board with it's built in four hardware serial ports, less hardware, less software, propably less costs overall?

Lefty