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Hardware connection bet PIC16F628a and bluetooth XBee module

http://forum.cytron.io/viewtopic.php?f=21&t=11852

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Hardware connection bet PIC16F628a and bluetooth XBee module

PostPosted: Sat Nov 03, 2012 1:39 pm
by subashini
Hello there,

I am doing a project with PIC16f628a and bluetooth module. I purchased the bluetooth module and the Xbee breakout board. Now I have a problem with the connections. I suppose to connect the Rx and TX of the bluetooth module to the RX and TX of the PIC. There is no example of this connection between the Xbee breakout board and the pic. Can someone explain to me how to connect it ?? Can I just directly connect the pins or there is another way ??

Thank you.

Re: Hardware connection bet PIC16F628a and bluetooth XBee mo

PostPosted: Sat Nov 03, 2012 1:49 pm
by zhenning
subashini WROTE:Hello there,

I am doing a project with PIC16f628a and bluetooth module. I purchased the bluetooth module and the Xbee breakout board. Now I have a problem with the connections. I suppose to connect the Rx and TX of the bluetooth module to the RX and TX of the PIC. There is no example of this connection between the Xbee breakout board and the pic. Can someone explain to me how to connect it ?? Can I just directly connect the pins or there is another way ??

Thank you.


Take a look at this: http://hades.mech.northwestern.edu/inde ... ctopic.jpg and
this: http://tutorial.cytron.com.my/2011/07/3 ... ontroller/

The Xbee needs to be powered by 3.3V and not 5V. So, you need 5V to 3.3V regulator :)

Re: Hardware connection bet PIC16F628a and bluetooth XBee mo

PostPosted: Sat Nov 03, 2012 6:26 pm
by robosang
A proper 3.3V voltage regulator is a must.

Since you do not have SKXBee, you would probably need a proper level shifter to makesure the XBee module is not damage by 5V interface. Check the level shifter, LC04A from Cytron, is cheap and easy to use. I use it for I2C, between 3.3V sensor and PIC.

Re: Hardware connection bet PIC16F628a and bluetooth XBee mo

PostPosted: Tue Nov 06, 2012 7:23 pm
by subashini
Dear Zhenning,

I have allready build the regulator for 3.3v. Thank you very much for the link u sent me, it really cleared mu doubt. Now my question is, the link u sent, the bluetooth bee module is connected without the Breakout board, so i no need to connect the board and bluetooth module together is it ?? Can just connect the bluetooth module directly to the PIC pins ??

Thank you.

Re: Hardware connection bet PIC16F628a and bluetooth XBee mo

PostPosted: Tue Nov 06, 2012 8:27 pm
by zhenning
subashini WROTE:Dear Zhenning,

I have allready build the regulator for 3.3v. Thank you very much for the link u sent me, it really cleared mu doubt. Now my question is, the link u sent, the bluetooth bee module is connected without the Breakout board, so i no need to connect the board and bluetooth module together is it ?? Can just connect the bluetooth module directly to the PIC pins ??

Thank you.



so i no need to connect the board and bluetooth module together is it ?? Can just connect the bluetooth module directly to the PIC pins ??
Yes you can ;)