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Originally Posted by Joe Johnson
If $2 is going to kill your project, I am not sure I can help you ;-)
Seriously though, there are some tolerably easy to implement shift in/shift out ADC's -- I think the old controller Eric Rasmussen designed used to have one. Let me see what I can dig up... ...checking... ...found it! It was an ADC0838CCN $2.63 from Digikey I remember interfacing a the BASIC Stamp2 to it. It was easy as pie -- the old PBASIC default is probably lurking out there somewhere if you dig around... ...checking... ...HA! -- man I am good! ;-) I had to use the waybackmachine.org but here it is a copy of the Pre-IFI PBASIC Default Code (it used to be called RXSLAVE.BS2 -- for all you old time FIRST folk)
Anyway, Below are the important bits of the PBASIC code to interface to the serial in/serial out ADC:
I can't help you with the $2 but I hope the above helped some.
Joe J. |
I don't want to pay 6$ shipping for a .35$ part. It is absurd.