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tapio linkosalo
Jul 15, 2008, 07:20 AM
I have a PIC project (Free Flight model timer/servo controller) that is currently adjusted with a serial connection to a programming device such as a Palm handheld. As a cable is unpractical to use, I have been considering of using Bluetooth instead. Modern Palms come equipped with BT chip.

The question is: how to rig the PIC end? What would be the most simple chip to provide RS-232 connection via the BT? I tried to search the net for BT chips, but only found complicated and fancy ones...


Thx.

JeffElecRC
Jul 18, 2008, 04:51 PM
I have used the BT modules from http://www.blueradios.com/

Also www.sparkfun.com should have what you are looking for. Configuring BT for serial port is not difficult and these can even be set up in "Transparent" mode, so the PIC doesnt even need to know it is there.

thanhTran
Jul 25, 2008, 01:58 AM
I use the blue tooth module from Spakfun. The Mitsumi (I think it's used to be the "blue radio") was the one I have. it's pretty easy to use. I use this module as in SPP mode. The PIC uart is connected to this bluetooth module and then talks to my PDA or laptop.

coro
Jul 25, 2008, 10:04 AM
I have been using dirt cheap Rayson modules that support only SPP profile, can be configured (permanent) using AT commands (from serial pins) to desired baud rate and serial params, master or slave with automatic connection and preset password.. they seem to me user friendly and extremely easy to use. Just the supply voltage have to be 3.3V, at more than 3.6V they burn immedaiately burn. And the transfer is NOT assured to be error-free, so You have to verify that the transfer was Ok..
http://www.rayson.com/product/wireless/btm11x.html

mmormota
Jul 25, 2008, 10:21 AM
Is it available in low quantities? Do you know a distributor?