Why not do as I do, and get FREE SAMPLES from Freescale, OnSemi etc etc etc...
Sometimes you'll need to pay the shipping, but the value of the freebies far outweighs any postage costs!
I've built a barometric altimeter, good to 50K feet, and has 1 foot resolution using these samples.. No op amps required!!
Wow, they are pretty cool aren't they. Thanks for the info - I may use them in the future from some other ideas. At the moment I am enjoying playing around with what I am doing as I am learning stacks and progressing well.
Once I have it all completed and working I'll take photo's and post a completed cicruit.
Sorry about that...I should. I need a 0-5psi pressure sensor. Need to measure 3m depth of water which is around 4.27psi.
That's interesting about the digi key site. I was using my local NZ site which is normally not too bad but I think they may be restrictive in their products available which affects the price.
Went to the digi key site and choose a few components I wanted. When I went to checkout they said the shipping to NZ was over $80! Even rang them up and asked why it was so expensive, they just said it was the standard cost of shipping internationally....pitty cause other sites do it for under $10. I will hunt around for equivalent parts elsewhere.
That is absolutely fantastic....couldn't ask for anything better. I much appreciate the work involved. If you weren't the other side of world I would offer to buy you a beer
Went to the digi key site and choose a few components I wanted. When I went to checkout they said the shipping to NZ was over $80! Even rang them up and asked why it was so expensive, they just said it was the standard cost of shipping internationally....pitty cause other sites do it for under $10. I will hunt around for equivalent parts elsewhere.
I have included the 7805 like you described and I also placed in 2 ULN2003 components to drive the LED's. Did my calculations based on a 5V supply to the LED's. If it was a 12V supply then the Resistor value would be 450hm:.
I've also thrown another spanner in the works as I forgot to mention that the LED's will be about 4-5 meters away from the components. I have therefore placed a capacitor on the 5V supply. Is this all I need to do? For long distances does it matter whether 5V or 12V are transmitted on the wires?