Author Topic: uart  (Read 1423 times)

0 Members and 1 Guest are viewing this topic.

Offline abh34Topic starter

  • Jr. Member
  • **
  • Posts: 21
  • Helpful? 0
uart
« on: September 03, 2009, 12:21:27 PM »
hey hey
i was reading through the forums many tutorials and i came acroos the word UART
i read the tutorial but couldnt understand much of it(i am not much of a computer wiz kid y'know)

can someone explain to me in simple language wad it is and wad features it wil help me add on my bot

Offline GearMotion

  • Supreme Robot
  • *****
  • Posts: 489
  • Helpful? 24
  • Two decades+ of Embedded Design
Re: uart
« Reply #1 on: September 03, 2009, 12:29:33 PM »

Answer short and sweet:

The UART is the hardware behind a legacy serial port. It is a communication port.

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: uart
« Reply #2 on: September 03, 2009, 03:16:18 PM »
to elaborate a bit, uart generally contains three wires:
tx: transmit, this is for sending data.
rx: receive, this is for receiving data.
gnd: most circuits need a common ground.
check out the tutorial on uart if you already haven't. http://www.societyofrobots.com/microcontroller_uart.shtml
Howdy

Offline abh34Topic starter

  • Jr. Member
  • **
  • Posts: 21
  • Helpful? 0
Re: uart
« Reply #3 on: September 04, 2009, 08:01:33 AM »
understood some of it but i guess ill learn eventually

Offline Asellith

  • Contest Winner
  • Supreme Robot
  • ****
  • Posts: 648
  • Helpful? 9
  • "I'm a leaf on the wind. Watch how I soar"
Re: uart
« Reply #4 on: September 04, 2009, 01:48:55 PM »
Universal Asynchronous Receive and Transmit.

It works just like a serial port on a computer but the voltage levels are different.

The basic concept is you can connect two items together (ie MCUs or something like an LCD module) and then one's transmit line is connected to the others receive line and they can communicate. Ground is needed so everyone can understand the voltages being sent back and forth. UART is a means of sending bits back and forth.
Jonathan Bowen
CorSec Engineering
www.corseceng.com

 


Get Your Ad Here

data_list