Search results

Search Forums New Posts
  1. bertus

    Relay help (opto mos)

    Hello, The led current of 900 uA might be marginal. It is on the border between on and off. Raise the led current to 3 mA for correct operation. Bertus
  2. bertus

    Relay help (opto mos)

    Hello, What is the led current? What is the load of the opto-relay? When it is inductive, you should use a Bemf diode. Bertus
  3. bertus

    Transformer Hookup

    Hello, Does this make it clear: Bertus
  4. bertus

    Clueless to read capacitor._.

    Hello, The datasheet that @Hunter64 posted shows that there are 6.3 volts capacitors of 820 uF are available. Bertus
  5. bertus

    Clueless to read capacitor._.

    Hello, Can you post a picture? Pictures upto 300 kB are no problem to post. It could wll be an 820 pF capacitor. Bertus
  6. bertus

    Wifi module IC I ordered has no pins

    Hello, No, you ordered the right part. You can mount pins on the module using header pins: https://www.sparkfun.com/products/12693 The picture shows a long strip, that can be cut on the lenght of the module. This is only an example, there can many more be found. On the module side you can...
  7. bertus

    And now something weird

    Music with stepper motors:
  8. bertus

    Comedy Thread

  9. bertus

    Help Me to Identify a Part in Macbook Pro Early 2011 Motherboard

    Hello, The TXC part is a crystal: https://www.txccrystal.com/crystal.html I do not think that is defective. The parts next to the TXC look eroded: Bertus
  10. bertus

    Help Me to Identify a Part in Macbook Pro Early 2011 Motherboard

    Hello, I can not see the image, as a login is asked for. Resize the images to about 300 kB and post them in the forum. You can also use a cropped picture extra with the details. Bertus
  11. bertus

    Arduino Resets -- Why?

    Hello, Is this the kind of module you are using? https://www.amazon.com/SMAKN%C2%AE-SRD-12VDC-SL-C-Channel-Level-Module/dp/B00MMW0XWY Ifso, it will need 12 Volts for power, as I posted. Bertus
  12. bertus

    Arduino Resets -- Why?

    Hello, Is the relays module not 12 Volts? Also, what are the values of the capacitors? Bertus
  13. bertus

    ES5100 ic help

    Hello, I have used google to translate the page and copied the part about the ICS chip: Dear Ferenc! Thanks for the news. > Is that what I think of BEAG at some level? I looked it up on the web, I just found a commemoration of BEAG, as with several telecommunications companies from the 90s...
  14. bertus

    Comedy Thread

    Sketch Artist responsible for the capture of a wanted man.
  15. bertus

    ES5100 ic help

    Hello, The ICS1420 can not be found. Here are some other chips that can be used as vocoder: https://www.circuitstoday.com/voice-modulator-circuit https://www.electroschematics.com/robot-voice/ Bertus
  16. bertus

    Comedy Thread

  17. bertus

    intermittent 555 monostable circuit help

    Hello, Nuts and Volts has a nice page about the 555: https://www.nutsvolts.com/magazine/article/555-monostable-circuits Bertus
  18. bertus

    intermittent 555 monostable circuit help

    Hello, Using a capacitor on pin 5 will make the reference voltages more stable. Have a look at the functional schematic: Bertus
  19. bertus

    intermittent 555 monostable circuit help

    Hello, Perhaps a pull-up resistor on pin 2 might help: https://www.allaboutcircuits.com/tools/555-timer-monostable-circuit/ Bertus
  20. bertus

    New to encoders and need assistance...

    Hello, In the datasheet I found this: The F/R* seems to be an input singnal. The DV is an output signal for Data Valid. Bertus
Top