Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Re: Newbie needs help for ULN 2003 (not 2003 A) help with 89
Hi guys,
I guess Edaboard was down or something cause I couldnt open the websitelast few attempts.
10k resistors didnt help,
will try with the 250ms setting now.
Also the board I am using also seems to be a part of the problem.
I...
Re: Newbie needs help for ULN 2003 (not 2003 A) help with 89
Thanks to both for replying so fast,
Please let me try both of this one by one. It will take a day for getting the resistors and using them in the circuit.
i will post results tomorrow.
sorry about the time shown, its not 10 ms but...
My program is simple to light led's with the cheapest option uln2003,
Led's not connected directly to processor because max current through 89s52 should not exceed at any time more than 71mA.
right now only three led's are connected, each connected to 40mA current.
The uln2003 connection is...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
