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  1. mik3ca replied to the thread matrix keypad not recognized at all by 8051 micro.

    well after a remake it turned out I had an open circuit. unbelievable.

    Apr 26, 2018 at 9:31 AM
  2. Grossel replied to the thread Ahhh.... Spring time, Finally!.

    That wakes childhood memories, I still remember the tall barn that was considered a cool thing to do to jump off the roof. Felt like...

    Apr 26, 2018 at 9:31 AM
  3. earckens replied to the thread TO-251 or SOT23 for mosfet low current?.

    TVS: I have included 18V varistors, would that do? TO223: valid proposal! But I have hundreds in storage of the others, the TO223 I...

    Apr 26, 2018 at 9:16 AM
  4. Kylobeetle replied to the thread PIC16F877A prevent queuing interrupts..

    Alright Mike, I ll check that today, and i will report it here. thanks

    Apr 26, 2018 at 9:07 AM
  5. kubeek replied to the thread TO-251 or SOT23 for mosfet low current?.

    That is a rather large difference, why not something in the middle like TO223? As for surge resistance, I would prefer to use a properly...

    Apr 26, 2018 at 9:06 AM
  6. earckens posted a new thread.

    TO-251 or SOT23 for mosfet low current?

    For use in a low-power H-bridge (less than 12V 100mA) connected to outdoor liquid sensing level probe I hesitate between TO-251 and...

    Forum: General Electronics Chat

    Apr 26, 2018 at 9:01 AM
  7. earckens replied to the thread N-ch MOSFET drain-source voltage loss.

    Hi dknguyen, if you had designed it, would you choose high-side for the NMOS? I ask because now it seems more logical to use high-side,...

    Apr 26, 2018 at 8:45 AM
  8. eTech replied to the thread LTspice AC/DC convertor.

    uh... no...it is virtually instantaneous. There is no deadtime..

    Apr 26, 2018 at 8:08 AM
  9. earckens rated dknguyen's post Thanks in the thread N-ch MOSFET drain-source voltage loss.

    It doesn't really matter because you can always compensate by adjusting the divider ratio. If you've already got it adjusted then no...

    Apr 26, 2018 at 7:49 AM
  10. Pommie replied to the thread PIC16F877A prevent queuing interrupts..

    You should only set flag equal to zero when it is defined and AFTER it has tested positive. I.E. if(flag==1){ flag=0; //flash...

    Apr 26, 2018 at 7:32 AM
  11. Kylobeetle replied to the thread PIC16F877A prevent queuing interrupts..

    I understand took me awhile to process it.. dont you think that im doing it on purpose haha.. So i can use the ISR to check conditions...

    Apr 26, 2018 at 7:29 AM
  12. mading2018 attached a file to the thread LTspice AC/DC convertor.

    Chris, and alec_t, what do you mean divided by two? I have attached the file once more, so you can see the connection. I may have...

    file.png Apr 26, 2018 at 7:23 AM
  13. Externet replied to the thread Rapid alternating occlusion glasses.

    I have them already developed and made by myself. For therapeutical use of a specific visual impairment and useable for other...

    Apr 26, 2018 at 7:21 AM
  14. mik3ca replied to the thread matrix keypad not recognized at all by 8051 micro.

    hmm.. Maybe eagle is lying again! It already lied about the 74HC393 IC by not showing that the clock is incremented on logic low. So...

    Apr 26, 2018 at 7:15 AM
  15. Kylobeetle rated Pommie's post Thanks in the thread PIC16F877A prevent queuing interrupts..

    You can't wait in an ISR. You can use an ISR to check for OK but need to return between characters. something like, (untested) uint8_t...

    Apr 26, 2018 at 7:01 AM
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