All Questions
5
questions
-1
votes
3
answers
669
views
Which MAX3232 IC's for simple UART to RS232 converter?
I am trying make a TTL to RS232 converter.
I have designed my PCB for 16 pin SMD sop16 and max3232 CSE+. But when I was buying from a store (store link), I saw other types of max3232. I've bought and ...
- 1,139
1
vote
0
answers
371
views
CP2108 with level converter txb0108 - UART communication TTL and LVTTL
My project uses four different modems (one 3v3 LVTTL(?) and three 5v TTL) for AT communication.
Each modem has a UART interface (TTL compatible).
For my application, i chose the CP2108 to ...
- 11
2
votes
2
answers
705
views
2.8V UART to 5V MCU - how?
I'm trying to connect ZTE MG2639 to 5V AVR (or USB<->RS232). This module is using 2.8V at IO. How can I do that? Normal voltage divider?
And how to check if communication is OK in Putty? Just type ...
- 177
4
votes
1
answer
2k
views
Need help with a sub-standard RS232
I've built a UART-RS232 converter based on max232 and it works well... but not for what I need :)
According to Maxim's datasheet the RS232 side signal voltage should be theoretically +/-10v (5v * 2), ...
- 171
2
votes
3
answers
4k
views
Will a 3V3 rated UART be damaged by applying 5V signals?
If I have a device specified for 3.3V operation and I connect a 5V level TTL signal to it ? Will it's UART ports be damaged or not ?
I have a WiFi module and I want to know if its UART ports will ...
