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  1. bertus

    USB 3.1 gen 1 port wiring for charging

    Hello, If you need an even higher current as 3 Amp, there are some LT regulators that go upto 7.5 Amp:
  2. bertus

    Controlling battery heat?

    Hello, E10 leds come in many sizes and shapes. Watch the voltage when buying the leds. https://www.google.com/search?as_st=y&tbm=isch&as_q=e10+leds&as_epq=&as_oq=&as_eq=&imgsz=&imgar=&imgc=&imgcolor=&imgtype=&cr=&as_sitesearch=&safe=images&as_filetype=&tbs= Bertus
  3. bertus

    Controlling battery heat?

    Hello, You have put the lamps parallel. That way 3 X the current is taken. Put the lamps in series and try again. What is the allowed lamp voltage? Bertus
  4. bertus

    EAS 8.2 MHz antenna design help needed

    Hello, As said, It looks like an RFID project. For the space you want to cover, you will need several antennas and multiplex the signals. https://www.semanticscholar.org/paper/Multi-loop-antenna-for-high-frequency-RFID-smart-Qing-Chen/4429facb5f3ec7d486ab6e9bae41b17d238a282f This was found...
  5. bertus

    Closed loop for two brushless motors

    Thread moved to the homework help section.
  6. bertus

    asking about components

    Hello, It could well be that JP1 is only used for testing the Vguard voltage. In normal operation JP1 should be open. Bertus
  7. bertus

    Looking for more help with my electronic ‘bagpipe’ project...

    Hello, A SPMS powersupply will generate high frequency noise. Adding a filter on the output can reduce the noise: This was found on this site: https://groupdiy.com/threads/add-filtering-to-smps-power-supply.73552/ The warbling you hear might be an interference between the SMPS and the drone...
  8. bertus

    Looking for more help with my electronic ‘bagpipe’ project...

    hello this wiki page will tell you more about ic powerpin naming https://en.m.wikipedia.org/wiki/IC_power-supply_pin bertus
  9. bertus

    Cyber mystery

    Hello, That post was deleted as spam. There was a hidden link inside the post. Bertus
  10. bertus

    Help with finding an equivalent Mosfet

    Hello, Have a look at the datasheet for specification details. Bertus
  11. bertus

    Comedy Thread

    Thanks cmartinez AAC
  12. bertus

    Comedy Thread

    Thanks to nsaspook AAC
  13. bertus

    Comedy Thread

    Thanks to nsaspook AAC
  14. bertus

    Bentham 605 Current stabilised Power Supply

    Hello, As @kellys_eye said, there must be power transistors used and not fets. The schematic clearly shows the Base and Emittor connections: Bertus
  15. bertus

    my Casio calculator is not working

    Hello, Sometimes the contact area where the button should make contact is dirty or oxidated. Have a look inside and posts some pictures. Bertus
  16. bertus

    For Sale: Gaming accessories

    Hello, The gigabyte board is a videocard. What is the model? The TP-Link is a wifi board, wich is quite universal. Bertus
  17. bertus

    Audio signals

    Hello, Perhaps this can help: https://github.com/Bodmer/Audio-Spectrum-FFT This was found with this query: https://search.yahoo.com/search?n=10&ei=UTF-8&va_vt=any&vo_vt=any&ve_vt=any&vp_vt=any&vst=0&vf=all&vm=i&fl=0&fr=altavista&p=arduino+audio+spectrum&vs= Bertus
  18. bertus

    CAN Bus

    Hello, You might find some info in the links of the following page: http://educypedia.karadimov.info/computer/datacommunicationbuscan.htm Bertus
  19. bertus

    Audio signals

    Hello, You can use a soundcard on a PC with Audacity to show a FT spectrum of the audio input: https://www.audacityteam.org/ https://manual.audacityteam.org/man/plot_spectrum.html Bertus
  20. bertus

    Looking for more help with my electronic ‘bagpipe’ project...

    Hello, In post #4 you have a potentiometer on pin 5. Be carefull with the setting of that potentiometer. On the end stops, the 555 will stop working. Pin 5 is the control voltage of the threshold: This is the effect of changing the voltage on pin 5: More info can be found in the attached...
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