Käynnissä

need three digit counter circuit with non-volitile memory

I need a three digit (LED) counter designed that will run on 5v (will count a high signal from a TTL compat. circuit). It must have non-volatile memory (so count is not lost when the circuit is powered down), and a reset button.

I just need the circuit -- I do not need a prototype. I also do not need a PCB layout. I will build and test myself. 100% of project cost will be put in escrow at the start of the project. I will release the escrow after the circuit is successfully tested.

Guys, this is not a $250 job -- not even close. It is a simple circuit -- why bid it up like that? I am looking to pay no more than $50 for this project.

Here are some clarifications:
-- use discreet components (no PIC)
-- no batteries please
-- unit should hold its count for at least 48 hours with no external power
-- can you exclude a memory chip by using a supercapacitor to keep the circuit powered up?

Taidot: elektroniikka

Näytä lisää: digit counter circuit, non volatile counter circuit, digit circuit, digit counter, non volatile counter, volitile, layout digit counter circuit, layout digit counter, digit counter pcb layout, counter project circuit, digit counter memory, reset button counter circuit, counter pcb, digit led counter, counter ciruits, non volitile counter, led counter circuits, guide digit updown counter, counter circuit digit pcb, digital counter circuit, digit led counter kit, counter circut, counter circuit, counter circuit counts thousand numbers using digital circuit, prototype PCB

Tietoa työnantajasta:
( 57 arvostelua ) Monterey, United States

Projektin tunnus: #433647