Pages: [1]   Go Down
Author Topic: Xbee with arduino pro mini 5v  (Read 1137 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Newbie
*
Karma: 0
Posts: 41
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi,

I have one xbee Serie 2 to connect in one arduino pro mini 5v, for this i have one Breakout Board for XBee Module:
http://www.hobbytronics.co.uk/xbee-breakout?keyword=BOB-08276

My problem is the 5V, i know the xbee only accept 3.3V, can i use a voltage regulator between 5v in arduino to vcc in my xbee?can i have problems with RX/TX Pins?

Thansk,
Logged

Offline Offline
Newbie
*
Karma: 0
Posts: 41
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I know i can use a Voltage Regulator - 3.3V to power the xbee, what i don´t know is if i can use normaly the pin comunucation RX/TX directly?
Logged

Seattle, WA USA
Offline Offline
Brattain Member
*****
Karma: 613
Posts: 49310
Seattle, WA USA
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You can use a voltage divider (or a pair of diodes in series) to reduce the 5V TX to 3.3V.

The 3.3V RX is more than 60% of the 5V power level, so that is enough to allow the RX pin on the Arduino to distinguish HIGH/LOW in the signal, so receiving shouldn't be a problem.
Logged

Grand Blanc, MI, USA
Offline Offline
Faraday Member
**
Karma: 95
Posts: 4084
CODE is a mass noun and should not be used in the plural or with an indefinite article.
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

My favorite approach.


* xbee.png (3.49 KB, 523x425 - viewed 94 times.)
Logged

MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

Pages: [1]   Go Up
Jump to: