Search results

Search Forums New Posts
  1. bertus

    How to test buzzer

    Hello, The shown buzzer seems to be available in two versions. The passive KY-006 : https://www.thegeekpub.com/wiki/sensor-wiki-ky-006-passive-piezo-buzzer-module/ The active KY-012 : https://www.thegeekpub.com/wiki/sensor-wiki-ky-012-active-piezo-buzzer-module/ It is hard to tell wich version...
  2. bertus

    Trying to get laser sensor to activate jqc-3ff-s-z relay coil

    Hello, It looks like the sensor can not provide enough current to activate the relayboard. There must be some kind of booster be installed to have the sensor activate the relayboard. Do you have more info on the relayboard? The number you gave is the actual relays and not the board. This is...
  3. bertus

    Trying to get laser sensor to activate jqc-3ff-s-z relay coil

    Hello, On the amazon page from icstation: https://www.amazon.com/Icstation-5V-Laser-Sensor-Module/dp/B01M8PFZRC 5V Laser Recevier Sensor Board work with Arduino Icstation 5V laser sensor board outputs high level when it receives light, otherwise it outputs low level. This laser recevier is...
  4. bertus

    Trying to get laser sensor to activate jqc-3ff-s-z relay coil

    Hello, An other catch could be that the sensor is open collector. In that case you must use a pull-up resistor. Bertus
  5. bertus

    Radio Control RF 433

    Hello, The other receiver can directly drive the ledlamp. If you want to use the existing receiver, you will need a power driver: The mosfet will easely be able to drive your ledlamp. Bertus
  6. bertus

    9V Battery ground and Power supply ground

    Hello, Have a look at this page on EEV: https://www.eevblog.com/forum/chat/what-is-the-ground-in-battery-powered-devices/ Bertus
  7. bertus

    need 12v from 56v

    Hello, The closest I can think of is a 150V Low IQ, Synchronous Step-Down DC/DC Controller with the LTC7801: https://www.analog.com/en/products/ltc7801.html# Bertus
  8. bertus

    Can anyone point me to a wideband Class A?

    Hello, The DoZ (Death of Zen) on ESP is based on the Nelson Pass design. ESP has a good description of the "new" project: https://sound-au.com/project36.htm Bertus
  9. bertus

    Radio Control RF 433

    Hello, From the other receiver: Receiver module :QA-R-011 Working Voltage: DC 3.6V~24V. Maximum Load: 2A. Static Current: 3.6 mA ~ 5.5mA. Working Frequency: 433MHz. Reception Sensitivity: ≥ -107dBm. Modulation Mode:ASK (superheterodyne). Number Of Stored Remote Controls: ≤ 10. Working Mode...
  10. bertus

    Radio Control RF 433

    Hello, The other receiver is capable of switching 2 Amps. (the third option on the page : reciever only). It has two power leads and two load leads. Bertus
  11. bertus

    Radio Control RF 433

    Hello, Looking at this picture from the given website: I see an 12F625 PIC chip, likely used as the decoder. That chip can drive 30 mA max on its pins. Your led requires about 300 mA, so you will need an amplifier for the current, like the ULN2003. Bertus
  12. bertus

    Radio Control RF 433

    Hello, @Harald Kapp , He is using a ledlamp in stead if a regular led. It is supposed to work on 12 Volts AC/DC. As it is 4 Watts, it will likely take about 300 mA. Bertus
  13. bertus

    Radio Control RF 433

    Hello, You could try this: Bertus
  14. bertus

    Radio Control RF 433

    Hello, Are you trying to power the led direct from the receiver pin? You could try via the ULN like the other pins. That will not work as the pin can not deliver the needed current. Also the ledlamp will not work very long on the tiny 9 volts bettery. Bertus
  15. bertus

    Comedy Thread

    Found at AAC:
  16. bertus

    Help with an old Yizreel CR3 scope

    Hello, @rftechnology , Do you realize that this thread is over 9 years old ? Antonschutte last visited this forum on Oct 5, 2015. You will likely not get any responce from him. I have deleted all other necroposts you made in other threads. Bertus
  17. bertus

    Archiving electronics literature such as Worldradiohistory.com?

    Hello, Did you send a mail to David? https://worldradiohistory.com/contact.htm Bertus
  18. bertus

    Archiving electronics literature such as Worldradiohistory.com?

    Hello, Did you see my resource: Old books and magazines on the World Radio History site. Bertus
  19. bertus

    source of replacement potentiometer

    Hello, Are they dual potmeters? https://www.taydaelectronics.com/potentiometer-variable-resistors/rotary-potentiometer/mn-taper/20k-ohm-logarithmic-dual-mn-taper-potentiometer-blend-balance-center-click.html...
  20. bertus

    Comedy Thread

Top