I have a Diecimila board and want to extend the analog inputs to 10, is there any way to do this? Is it really practical to control ten load cells and ten leds using the arduino platform?
method 1: use an analog mux, e.g. the 4051, to multiplex the inputs (controlled by arduino digital lines).
method 2: use one or more external ADCs (e.g. MCP3208) that would be connected to the Arduino (e.g. using SPI in the case of the MCP3208).
-j
thank you for such a fast response, found the forum post:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1138666403
after searching the playground a little bit.
The mux looks like the best choice right now