Hi guys, I hope this has not been answered before, I did search around for a while. I am new to Arduino and the forum.
Here is my problem. I have an Arduino Diecimila, and a Bluesmirf gold. I have a simple program on the arduino that blinks a led. When I send a '1' from my computer through the BT, the led stays on. When I send a '2' it turns off. It is a simple test program and works fine. The issues started when I tried to replace the Diecimila with an Arduino Pro Mini (3.3v 328). I can upload the program to the mini and the led blinks, but the commands sent through BT don't change the led state. Why would this work on the Diecimila, but not the mini? I know the program is running on the mini, and I know the BT is working. Also, I have tried running both the BT and Arduino at 115200, 38,400, and 9600. Each baud rate works on the Diecimila and not on the Pro Mini. Could it be a 3.3 to 5 volt thing? I'm powering the whole project off the sparkfun usb to serial 3.3 volt programmer.
Thanks for your help! Tom