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.
I was working on a project that operates 8 relays using shift register and uln2803. The circuit work fine on breadboard but on PCB it didnot work. i have check it many times on Breadboard it works. but didnot work on PCB. Any help. i am using Atmega 328 standalone with 16 Mhz crystal and 33pf...
thanks all for the replies. i could not come to internet so cant see post. yes there was problem with opto coupler IC attached just before 7805. it was drawing more current.
i was using a relay control board with 7805 connected. it worked fine for 6 months. now its 7805 started heating. i have changed the 7805 IC but it still heating. its changing 12 V to 5 V. can it be due to malfunction of diode attached to supply or malfunction of resistance attached?
kindly help
i hv started working with pic.
i am using pic 16f676 controllers...
with mplab and pickit2...
can u help me i want some examples for learning. starting from led blink.
also mplab programming in C language or Assembly ...
thanks in advance,
Can narrow PCB traces and poor designing affect the circuit operation?
I HAVE ATTACH a traces, it works with one design and does not work with other design?
I want to know that CD4050BE works fine with ATMEGA 328 PU?
i read somewhere that CD4050BE donot work good at high frequencies?
I am using 16 Mhz crystal with Atmega328 PU.
?
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.
