Re: Cheapest object sensor on the market!

MSP430F20xx, which is very cheap in large quantity - well under your
price target.

Probably not. The OP wants $1 total BOM. Lets figure 0.25 for PCB,
0.25 for LCD, 0.40 for LCD controller. The uC needs to be less than
10 cents.



You are right, i have already a solution from cypress, the CapSens plus
http://www.cypress.com/capsense/

i have already called and it runs for $1.40 may be gets down to a $1 for
100,000 units, which its my purchasing volume as a start up.

there is another solution that runs for less, around $0.80 from Avago -
HSDL 9100-21

http://www.avagotech.com/search/results.jsp?src=&siteCriteria=hsdl+9100&searchButton.x=0&searchButton.y=0

but i beleive will need a microcontroler that will add up at least $0.40
to the cost!

Any advices guys !!
.