XBee RSSI out to Arduino Mega

Hello,

I've been using one of these: https://www.sparkfun.com/products/11373 to interface an XBee with my Mega. If I want to read the RSSI output, will I need to take the RSSI through a level shifter up to 5v in order for the mega to recognize the HI state of the pulse? Or is 3v sufficient?

Thanks,

Loren

The Arduino reads an input on most pins as HIGH when the voltage hits at least 60% of VCC. So if your Arduino is running at 5V, anything higher than 3.0V "should" read as HIGH.

Does anyone know if the pwm period changes based on the buad rate of the XBee? If so how do I find out what it should be for 567000?

Thanks,

Loren

I don't know, but I would be very surprised if it changed.

Unless you are playing with different crystals, PWM won't frequency/period change. I mean, you can manually change it... but that requires code. The PWM hardware and the UART hardware are isolated and one does not affect the other.