Tagged Questions
3
votes
2answers
220 views
Serial Port (DB9) signals
Just about every time I use a serial port for anything, I only use 3 pins of the usual 9-pin connector (DB9): Tx, Rx, and GND. And when I wire up my microcontroller projects to these ports, I just ...
4
votes
0answers
208 views
Serial data transfer from Omega DP80 legacy hardware to computer
Can anyone provide me with some guidance on setting up a legacy serial connection on an Omega (brand) thermocouple display? I would like to use the serial data interface (Omega DP80-Ser) to reliably ...
10
votes
4answers
424 views
Why is RS-422 interface interference insensitive?
I am trying to understand differences between RS-232 & RS-485. I just don't grasp what is the core principle behind RS-422 inteference resistance? Is it number of wires (4 instead of 3)? Is it ...
3
votes
2answers
317 views
Recommend a Serial to USB cable/converter that works with modern OSes
I'm hacking on a board that has an RS232 interface (via a Max232 chip). My new computer doesn't have a serial port, which leaves me using USB. I actually have a Serial to USB cord already, but it ...
3
votes
5answers
905 views
Computer to Arduino Interface Options
I need to send 800 bytes of data from a computer to an arduino board every 20ms (approximately). I began with the serial library which works nicely but it is too slow even at its highest rate (115200 ...
