USB
USB controlled DDS signal generator with ATmega88
A simple signal generator which produces sine waves (or any waveform really) at audio frequencies using DDS and is controlled a USB serial connection.
Only 2 chips are used in this circuit. The AVR ATmega88 which produces the signal, and
Dual port USB Host controller from FTDI / Vinculum
For applications which need a USB interface with host controller capabilities, FTDI via the Vinculum brand offer the Vinculum VNC1L-1A device. It has two USB 2.0 full speed (12 Mbps) ports andLow cost USB interfaces for AVR microcontrollers
While there are many chips available for interfacing USB to microcontrollers, most of them involve some costs in both development and component count.
Two low cost alternatives to interfacing ATmega microcontrollers to USB are AVR-USB from Objective Development, and the range of USB interface chips from FTDI Chip.
(USB, FTDI, AVR-USB, FT245R, AVR, ATmega, ATtiny)
USB based data acquisition module
Soon to be available, a small USB 1.0 based module with 8 channel analog inputs.
Interfacing to Windows, OS X, and Linux operating systems.
Expected price approximately $100 USD
(device ATmega88)