Adding External I/O using USB
Phidgets USB Devices (
www.phidgets.com
)
Supports Servos, Digital, & Analog I/O
Numerous plug-in sensor modules available
Free Driver & source code shared projects for CE
Other USB I/O options
Various USB devices built using FTDI USB chipsets
(
www.DLPdesign.com/usb/
DLP-D245PB-G)
Lower board cost than Phidgets ($40), but more hardware effort is required.
The DLP-245PB-G both digital and analog I/Os.
Some have free CE drivers (6.0 status?)
Many plug into a standard student .1” protoboard
Other USB & Serial I/O options
Cypress PSoC Evaluation Kit (CY3210)
Mixed-Signal Microcontroller with digital and analog I/Os.
Low Cost ($17 academic pricing) but need to develop Firmware for serial commands (www.cypress.com/CUAP)
For 16x2 LCD panel add $17
Serial Interface and Small Protoboard on PCB
USB version available ($60) but no CE drivers yet
Free graphical software tool and assembler
C compiler ($145) – some copies may be free for school labs
Also available with USB ($60) - but no CE USB Drivers!