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  1. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    danadak an you help? the archetecture I think you are on about is the esp23 dev board
  2. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    the code I posted has the frequency bins you were on about, I know what multiplexing (muxing) is, but I have no idea of how to implement it in the code, see what you can come up with, thanks!
  3. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    here's the code that I want to modify // (Heavily) adapted from https://github.com/G6EJD/ESP32-8266-Audio-Spectrum-Display/blob/master/ESP32_Spectrum_Display_02.ino // Adjusted to allow brightness changes on press+hold, Auto-cycle for 3 button presses within 2 seconds // Edited to add Neomatrix...
  4. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    well I'm not sure, your correct though it would be but a man said that... On the KISS principal I still think keeping it analogue is the way to go. Sure, try doing it in code and spend weeks/months getting it right and frustration at not being able to identify the problems..... coding a...
  5. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    I want to coincide the peak with the lm3914 input and want the bar graph type LED's to rise and deminish as it goes up and down again this peak is 32Hz
  6. Maglatron

    Sallen Key Low Pass Filter, bandpass filter

    so Ive managed to make this shape on the filter wizard app I've got part of the puzzle just trying to link them now. If I use the LM3914 what cut off frequencies should I use, and how do I translate the peak of the graph to the highest analog voltage that the LM3914 to light the LED's in a bar...
  7. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    no way wires crossed man look I really need your help because you have the ability to and I did not mean anything malicous or narky of off key or disrespectfull I was going to say Is that still your plan then deleted it and wrote nevermind zipped because i didn't want to ask more questions when...
  8. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    sorry no disrespect meant I just meant that I'll wait patiently and keep it zipped whilst you do your thing! I said is the plan still to help seriously man no disrespect meant and i wanted to say is that still the plan but changed it by editing please don't take it the wrong way I appreciate...
  9. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    OK noted, sorry, I did bother to look I searched resistor programmable active audio filter I will resume looking thanks for the hints and pointers, peace
  10. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    I know, there is no pricing so I was looking for a generic chip I rang the man based in England he said to get in touch to discuss pricing, what I'm wondering is what would you pay per chip maximum 16 pin dip packages
  11. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    I shall take that onboard! I cannot find anywhere to buy these MSRAAF Resistor Programmable Active Audio Filter Kellys Eye what's all this stuff about "order" google sponsored results analog devices universal filter active filter "2nd order", "5th order"?. Is that what I need? Is...
  12. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    OK thats some good stuff do you mind a "talk through" whats going on and I shall try to reverse engineer to LTSpice. and now I know that you know exactly what I'm after thanks for the visual no idea what "So cool you your jets bro" means but thank you wiring diagram? what frequency in Hz was...
  13. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    this is the actual final settlement size
  14. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    correct me if I'm wrong! first of all I have settled on 16 columns and 20 rows 320 LED matrix common cathode for the columns and common anode for the rows! I know that multiplexing lights up one LED in a row at a time and one after another, an LM3914 or LM3916 is a dot bar display driver and can...
  15. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    well I got confused about the FFT digital stuff and the analog stuff with the 74HC595 and the band pass filters and the rca jack in ultimately I want to have the thing work not too bothered of how to achieve it are you still going to throw out ideas with explanations please Was kind of...
  16. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    I used to chip ps2 consoles with the DMS4 pro chips and have years of experience of soldering other bits and bobs, and when things are going wrong I have my trusty solder sucker just looked trough some of my inventory, turns out I have 20 SN74HC595N shift registers to hand! very good at...
  17. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    I'm very good at soldering to be fair don't worry about the components I have, I can always buy what I need I'm very greatfull! this project uses 540 led's with an uno so I know that its more than possible because I'm using 320 on and esp32 but mine is a spectrum analyzer...
  18. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    ok
  19. Maglatron

    Comedy Thread

    Why did the airoplane land on top of the house? because the landing lights were on!
  20. Maglatron

    Spectrum analyser Equalizer project how to go about it?

    No your correct I don't need it for RGB, just red! thanks for reply anyone?? I' mnot using the chipset WS2812B FYI BTW Any idea's people, really struggling I have been researching all day!
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