Hi friends, There is a requirement to repair an old machine which is using 100s of I/Os with PLCs. These are very expensive to replace at the moment and my client has asked me to give a solution. I don't see that Microcontrollers can cater for this as there isn't any with such a lot of pins (at leas...

hi experts, I received a project from a client to automate one of his machines that are operating with almost obsolete electronics. I can figure out a program for the Microcontroller but there are certain mechanical (4 Amp) relays that are operating in the A/C side to replace as well. I heard about ...

Do anybody has a good circuit diagram for PIC16F877 programmer?
The one I use has several stability issues at the moment.

Thanks,

Leo

Hi,

I'm a bit confused on choosing a Microcontroller for a system that needs high precision over cost.
I heard Atmel is a bit more stable than PIC especially in industrial environments.

Any idea?

Regards,

Leo

Hi,

I need to connect my microcontroller to operate an external DC motor (a back EMF is obviously expected).
At the moment I use relays, but I have seen that my system reset few times with the relay pickup.

Do you have any quick idea with your experience?

Best Regards,

Leo

Thanks for your reply Magneto.

BTW: I had a quick look at the net and seen that there are many number of DSPs with lots of unneeded ports.
How do I select a DSP for a specific application?

Regards,

Leo

Hi, I have developed a door control system using a PIC16F877 microcontroller. It mostly get stuck but sometimes work nicely. I'm quite clear that it is a problem of the microcontroller since I was able to operate the other parts separately. The oscillator I used is a 40 MHz one and I used Power MOSF...

Hi, I have seen some information on the web regarding DSPs. But I still don't get it. Could you please explain a bit on that. Is there anybody who's using those in this forum? Basically what's the difference between a DSP and an ordinary Microcontroller. Best Regards, Leo Leonard Patrick JK Solution...