Worst case cost, for something that plugs in exactly link a blinkM is another cap and a 3.3v regulator, so add about 0.60 cents to the part cost ($1.20 end cost).
Worst case cost, for something that plugs in exactly link a blinkM is another cap and a 3.3v regulator, so add about 0.60 cents to the part cost ($1.20 end cost).