I need to interface to an AVR project via USB.
The options I have are:
1. AT90USB series of Micros, as they will have more than enough I/O and will have a spare serial port, not required at this stage, but could be usefull.
2. The newer FTDI chips such as the FT232R and FT245R, (both contain internal EEPROM for device customisation unlike the earlier FT232BM & FT245BL)
3. The Silabs CP2102 or the newer CP2103 with 4 GPIO.
Options 2 & 3 will use an AVR eg. Tiny2313/Mega8535.
What do you think is the best solution in terms of ease of use, availability and price?
Has anyone used any of the above?