Communication with a Mobile device

[Keith]

Has anyone tried or can give advice on how to connect a Pic to a mobile device (like a Palm) thru a serial or usb connection?

[NavMicroSystems]

Has anyone tried or can give advice on how to connect a Pic to a mobile device (like a Palm) thru a serial or usb connection?

if you have a MAX232 on board a serial connection would be pretty simple:

Use the Sync cable (or Cradle) that comes with your Handheld and:

connect RX of the HandHeld to TX of your MAX232
connect TX of the HandHeld to RX of your MAX232
connect GND of the HandHeld to GND of your MAX232

It might even work without a MAX232, but then you need to check first that the serial port of your Handheld works with TTL levels.

I have sucessfully connected PICs to PALMs and iPAQs with only three wires.

There are many examples for serial communication on this Forum, have you tried a search?

USB is possible but more complex.