what do you use pic rel for?

what does IQfy use pic rel for?

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  1. 2 months ago
    Anonymous

    sometimes i poke the pins when i'm bored

  2. 2 months ago
    Anonymous

    Dust catcher

  3. 2 months ago
    Anonymous
    • 2 months ago
      Anonymous

      You spent $40 to make a tiny light blink?

      • 2 months ago
        Anonymous

        $40? I bought mine for less than $12

        • 2 months ago
          Anonymous

          $12
          +$10 shipping
          +$10 handling
          +$10 power supply
          +$10 case
          +$10 microsd

          • 2 months ago
            Anonymous

            >$10 shipping
            what?
            >handling
            meds
            >microsd
            MEDS

      • 2 months ago
        Anonymous

        $3 on aliexpress + free shipping

      • 2 months ago
        Anonymous

        it's not tiny. it's enormous!

    • 2 months ago
      Anonymous

      uhm excuse me, sister? wheres the protection resistor

      • 2 months ago
        Anonymous
        • 2 months ago
          Anonymous

          why shit always over priced in the west
          led cost like ¢10 with 100% markup

      • 2 months ago
        Anonymous

        I think pin 13 on the UNO has a buil-in resistor.

        Its pretty useful as a USB to UART converter, just connect RESET to GND

        Why don't you get a real USB to UART converter? The CH340G based ones cost like 3$.

        https://i.imgur.com/oqB9I23.png

        what does IQfy use pic rel for?

        I recently found a TV box in the dumpster. The motherboard was smashed in half, but somehow, the front VFD module had survived, so I connected it to my Arduino, found the datasheet for the controller chip and quickly wrote a driver for it.
        Arduinos are fine for quickly testing out a new sensor or chip, but for larger projects, it quickly gets in your way, especially when you consider the annoying build system. Really writing bare metal C code and compiling with avr-gcc is much better for this use case. For more powerful micros like STM32s, Arduino isn't even worth considering. On the STM32, just use HAL if you are lazy, or the LL drivers if you are a chad.

        • 2 months ago
          Anonymous

          >I think pin 13 on the UNO has a buil-in resistor.
          but that resistor is used as pull up resistor

        • 2 months ago
          Anonymous

          >Why don't you get a real USB to UART converter?
          Cause I already have an arduino? lol

  4. 2 months ago
    Anonymous
    • 2 months ago
      Anonymous

      did you made it laggy on purpose?

  5. 2 months ago
    Anonymous
  6. 2 months ago
    Anonymous

    Nothing. I almost used one to setup wifi controlling of my garage door then said frick it, the time saved wont ever equal the time cost.

  7. 2 months ago
    Anonymous

    I'm currently using like 40 of them to monitor things on retirement homes for a NGO

    • 2 months ago
      Anonymous

      Neat, I'm guessing temperature, air quality that kind of stuff or what is there to monitor in a retirement home?

      • 2 months ago
        Anonymous

        Almost all of them monitors temp/humidity but we are getting ready to test a new batch of devices for monitoring air quality (using CO2/gas sensors), power consumption and taking photos (server side OCR for some dials). We did a bit of that in the past but for another client.
        They have saved already lots of money on heating and even detected a boiler leak (looking for abnormal humidity spikes), so they are quite happy with the service

        • 2 months ago
          Anonymous

          It's always cool to hear about this stuff being used in a "productive" environment rather than just some home projects. I use a few to monitor temperature/humidity and detect smoke in case of catastrophic hardware failure inside a server rack.

          • 2 months ago
            Anonymous

            Nice. I started the same way (monitoring my aquarium) and one thing lead to another

          • 2 months ago
            Anonymous

            Yeah monitoring an aquarium is basically a textbook use case for these things. A friend of mine used I think some raspberry pis to monitor his vegetable garden, soil ph, water levels, that kind of stuff.

        • 2 months ago
          Anonymous

          Can it detect Black folk beating up boomers?

  8. 2 months ago
    Anonymous

    I used it as a pihole and a DHCP server for a few months, but it could not keep up with even that. A fricking DNS and DHCP server.
    >brought home 6 laptops from work that needed imaging
    >installed via PXE and booted up all 6 and started windows update
    >network dropped completely, I assumed it was switch so I rebooted it
    >nope, it was the stupid fricking pi
    >the pi completely and utterly shit itself and would freeze after only a minute or two again
    >4gb pi4, this shouldn't have been an issue
    >lived alone so I had maybe 4 other devices on the network
    >unplugged it and threw it in a drawer, and ended up giving it to a friend like a year later

    I think people are full of shit when they say that they run their NAS / router / whatever on a pi.

  9. 2 months ago
    Anonymous

    I have an old 486 I love, but I wanted to use a modern mouse with it, but the board only had a serial port for mice. So I used an arduino to make a PS/2-to-Serial mouse adapter since you can still find PS/2 mice easily today. It let me use a modern optical mouse on it, and it was weird since it was way smoother and nicer then I had ever experienced on such an old PC lol.

  10. 2 months ago
    Anonymous

    for me it's the pi pico

    • 2 months ago
      Anonymous

      Can this be used with the huge amount of libraries that already exist in the Arduino sphere? The SMT32s can, but those have a limited amount of I/O pins. It would be nice to have a pi pico that could be a drop in replacement.

      • 2 months ago
        Anonymous

        does circuitpython count?

        • 2 months ago
          Anonymous

          Beats me, I've only programmed in C on the things

          • 2 months ago
            Anonymous

            https://www.raspberrypi.com/documentation/microcontrollers/c_sdk.html

          • 2 months ago
            Anonymous

            Unfortunately the answer looks to be "no".
            The amount of libraries for Arduino as a platform is just too much to walk away from, and there are compatible ARM chips that are stronger then the rip anyways.

          • 2 months ago
            Anonymous

            https://arduino-pico.readthedocs.io/en/latest/index.html

            ???

          • 2 months ago
            Anonymous

            Interesting, looks to also be cross compatible with the code for bringing a ESP32's wifi online.
            Wonder if the resource I found was out of date.
            Thanks for the info anon

  11. 2 months ago
    Anonymous

    to learn basic electronics and embedded coding. It was fun for a bit, but to go to the next level you need to learn how to design your own pcb circuits instead of relying on premade boards.

  12. 2 months ago
    Anonymous

    IQfy NEETs cannot into microcontrollers since those require money and efford to work with. Consider visiting

    [...]

    .

    I made a remote light switch with nano clone and in the future I will use those to make PH controller for an electrolyte cell.

    • 2 months ago
      Anonymous

      >IQfy NEETs cannot into microcontrollers since those require money
      I spent only ~$1.50/ea for my Arduino Nano clones that I've done all my projects with.
      Its only as expensive as you want it to be for a hobby

      • 2 months ago
        Anonymous

        I know. all of my arduino boards are clones. I only have original pico. Regardless, 1.5$ is still not zero and most IQfy NEETs would rather spend this money on soda or yet another waifu pillow since they are broke.

  13. 2 months ago
    Anonymous

    A really shitty DIY alarm system for a house I inherited in bumfrick nowhere. There's no internet or cell reception there so I had to make due with some busted speakers, a TV remote, an IR receiver and some PIR sensors. There's nobody there to react to the sound but either the trespassers get hearing damage or the speakers blast for so long they set everything on fire.

    • 2 months ago
      Anonymous

      >or the speakers blast for so long they set everything on fire
      kek the fast and easy way to commit insurance fraud

  14. 2 months ago
    Anonymous

    I was planning to buy one of these and use it to make a sample-based music tracker (think Renoise, but simpler and with a physical interface). Then suicidal depression hit and made it seem like a completely moronic idea.

    • 2 months ago
      Anonymous

      Just do it anyway. Its cool to do cool things. Who fricking cares if it's been done already.

      • 2 months ago
        Anonymous

        >Just do it anyway. Its cool to do cool things. Who fricking cares if it's been done already.
        That's how I feel about it in general, but every time I start something, after a while some switch just flips in my head and the effort starts to look like pointless cope. C'est la vie. I should probably get it, anyway, just so I would have it laying around next time I feel like doing something with one.

        • 2 months ago
          Anonymous

          Don't ever look at things as "its been done already", or "I'd just do it poorly".
          Look at them as "Its a new expreance for me", "I can learn X from this" and importantly "This is fun to do this"
          Perspective is 90% of what it takes to get a project going. The remaining 10% is the actual effort.
          Take it from someone who has fallen in to the same trap many times in the past until... to be honest I got over _myself_.

          • 2 months ago
            Anonymous

            I suppose so, anon. I suppose so. Thanks for the encouragement.

          • 2 months ago
            Anonymous

            The world doesn't matter, only your experience anon. Frick me and all the other people out there, frick the blog posts and news pieces. Go and do things, because your depression has otherwise conditionned you to accept doing nothing. Do things because that's how you actually reprogram the depressed brain into accepting and then owning happiness. Observing and daydreaming of action is what kills you inside.
            You can do it anon. But it's not what you can or can't do that matters: it's that you just fricking do it now.

  15. 2 months ago
    Anonymous

    to cheat in rock band
    this is still the top score for brutal flames as far as I know
    you can ban me now harmonix, I'm over it

    • 2 months ago
      Anonymous

      Did you even really need external hardware for that? Doesn't seem like the type of game to have an anti-cheat, or at least one that wouldn't be piss easy to bypass.

  16. 2 months ago
    Anonymous

    I use one with a 40-pin connector to emulate a floppy disk device for an old mission-critical machine.

  17. 2 months ago
    Anonymous

    e-stim

    • 2 months ago
      Anonymous

      im not pluggin my dick on a device made by myself tbh, but i applaud your bravery

  18. 2 months ago
    Anonymous

    I have one that I'm thinking of hooking up to a humidity monitor and a small speaker, so whenever the plant in my Moai Head planter needs water, it will play moai.mp3 at me until watered.

  19. 2 months ago
    Anonymous

    I have one with a midi interface that rewrites the midi stream to handle polyphony when using mono instruments via a dedicated midi channel. otherwise it just does passthru.

    • 2 months ago
      Anonymous

      I'm genuinely curious at how you did this. Are you just keeping a note sustained till you get the command that it was let go? Is your mono instrument able to continue sending note messages after one has already been sent?

      • 2 months ago
        Anonymous

        midipoly v6 sketch:

        https://gist.githubusercontent.com/ramsesz/c5f18a3978023b7a28fe149cdd858230/raw/366fa6799d700ea3984aaae3864a46cce10ce5db/gistfile1.txt

        * This program acts as a transparent MIDI THRU by default
        *
        * When chromatic range NOTE ON messages are received on midi channel POLYCHAN
        * they will be redirected to VOICE_FIRST + allocated voice channel
        * up to VOICE_QTY
        *
        * NOTE OFF messages are redirected to the appropriate channel unless STOLEN
        *
        * Configurable MIDI message handling to suit your situation:
        * CC, PC, on POLYCHAN - duplication to ALL poly channels
        * PB, ATC on POLYCHAN - duplication to ACTIVE poly channels
        * ATP on POLYCHAN - redirection to the appropriate channel
        *
        * Voice allocation: same note voice REUSE then CYCLIC free voice then STEAL
        *
        * Drum trigs are redirected to channels 1 thru 8 for Digitakt using white keys
        *
        * Arduino LED: ON when any notes are held, OFF otherwise
        *
        * Polyphony configuration modes may be selected using upper range keys
        *
        * Requires standard MIDI library to be installed in your IDE

        • 2 months ago
          Anonymous

          Thanks anon
          I've been wanting to do a midi related project and have the plugs coming in the mail currently. Be something to reference and learn from.

        • 2 months ago
          Anonymous

          I made a midi footswitch with bluetooth connection to control DAW and guitar plugins, i have to say that i am pretty happy with it since a new one wold cust more than the double.

        • 2 months ago
          Anonymous

          >POLYCHAN
          :3c

  20. 2 months ago
    Anonymous

    Made this little fella with arduino nano. He looks around and stuff.

    • 2 months ago
      Anonymous

      That looks like a slightly less terrifying version of a furby. Does it have a speaker?

      • 2 months ago
        Anonymous

        No, only mic. He wakes up with sound. Its the cupcake from fnaf games.

        • 2 months ago
          Anonymous

          That explains why it looked so weirdly familiar. Still nice job anon.

  21. 2 months ago
    baritone

    only problem with "arduino-music-player" is you cant just throw a bunch of pmf files onto a SPI flash chip and select them, so you are limited to the remaining ~21kb of program space

    • 2 months ago
      Anonymous

      Nice clock. Wanna bring it to the White House?

      • 2 months ago
        Anonymous

        woah your post is glowing green! i didnt know moot added %%text%%

  22. 2 months ago
    Anonymous

    >pic rel
    nothing
    >Arduino Mega 2560
    everything

  23. 2 months ago
    Anonymous

    You're not supposed to use things like this. If they're new you can write reviews or articles about them, and if they're old you can say they're obsolete and keep them in a drawer. The only purpose behind owning them is to signal to other people that you're a Tech Guy.

  24. 2 months ago
    Anonymous

    Make a vaguely interesting but useless "project" and trick other people into buying them with your affiliate marketing links

  25. 2 months ago
    Anonymous

    ATmega328 is nice and simple and does the job most of the time.
    But this bad boy...

  26. 2 months ago
    Anonymous
  27. 2 months ago
    Anonymous

    when are chinks going to start selling cheap non-contact temperature sensors that don't suck? i don't want to pay 30 dollars for a single pixel sensor with a giant FOV

  28. 2 months ago
    Anonymous

    cheating in valorant and csgo

  29. 2 months ago
    Anonymous

    A fan which turns on when the temperature and humidity reach a certain threshold.

  30. 2 months ago
    Anonymous

    I work as an embedded systems engineer. I design hardware and write firmware.
    I've designed tons of stuff, both professionally and as a hobby. I'm currently designing a battery for my Thinkpad L460 because all I can find are shitty chink clones which use a small FPGA to talk over SMBus. It's a shame really.

  31. 2 months ago
    Anonymous
    • 2 months ago
      Anonymous

      there's no way that is functional

  32. 2 months ago
    Anonymous
  33. 2 months ago
    Anonymous

    from this

    • 2 months ago
      Anonymous

      to this

    • 2 months ago
      Anonymous

      to this

      >even though you learn nothing from using a single black box chip that does EVERYTHING

      • 2 months ago
        Anonymous

        Depends on your goals.

  34. 2 months ago
    Anonymous

    shit always ends up being more work than planned

    • 2 months ago
      Anonymous

      as always

  35. 2 months ago
    Anonymous

    >just bought this shit
    >see it on IQfy
    the glowies aren't after me, right?

    • 2 months ago
      Anonymous

      depends on what you do with it

  36. 2 months ago
    Anonymous

    Its pretty useful as a USB to UART converter, just connect RESET to GND

    • 2 months ago
      Anonymous

      picrel

    • 2 months ago
      Anonymous

      picrel

      always wondered what happens when you do this. Do you just get thrown into a root console or something? Like does it just execute whatever u type in bash or something and transmit the output back to you?

      • 2 months ago
        Anonymous

        As someone who has
        https://www.aliexpress.com/item/4000120687489.html?spm=a2g0o.order_list.order_list_main.25.49161802Fe6SeV
        and
        https://www.aliexpress.com/item/32757421855.html?spm=a2g0o.order_list.order_list_main.20.49161802Fe6SeV
        I can tell you that I actually hate those shits and I hope an Arduino solution is better. The CH340G works on SBC I needed it to work, while CP2102 5PIN works sometimes, sometimes not. If they work, it is essentially a SSH connection over serial where you are not asked for logic details and are given root permissions. It is actually interesting because it allows to setup some devices without having to configure ssh beforehand, like you take the board, you know you only want it to do 1 thing so you skip the normal setup and just configure it to do that 1 thing.
        I would advice to read before buying different models of USB to UART TTL cables fi they are compatible with your board.

  37. 2 months ago
    Anonymous

    I use one to manage a cistern irrigation system, 5 solinoid valves, 3 pumps, a large cistern tank with a pressure sensor and a float switch. This is setup with mosquito mqtt messaging on a server that also has openhab running on it.

  38. 2 months ago
    Anonymous

    Control and surveillance every wagie's timecards to see who is late by 1 minute and who needs to be fired.

  39. 2 months ago
    Anonymous

    turning computer on/off with servos and bluetooth.i even wrote about my journey with that shit in a previous thread. Although even if I exploded 1 of them, the others are ok and in use. 1 is in a drawer, not in use, but i have some plans for it, i just think they may be a bit over it and i will need a Raspberry Pi zero.

  40. 2 months ago
    Anonymous

    I use it to upload programs into my microcontrollers.
    There is no way I'm ever going to use it in a project. It's too big and expensive.
    A 16kHz crystal, 2 22pF caps and an atmega328 cost 1/5 of the cost of an arduino and achieve pretty much the same thing while taking up less space.

    • 2 months ago
      Anonymous

      one of my projects

  41. 2 months ago
    Anonymous
  42. 2 months ago
    Anonymous
  43. 2 months ago
    Anonymous

    Nothing, it's collecting dust for now. Had a pi4 for my night vision camera which was at least more practical, it operated for less than a year and then it broke.

  44. 2 months ago
    Anonymous

    i have these running my irigation system and some other little things. one does my solar battery charging.

    used to teach arduino programming to kids. they are useful gadgets but really you're better off buying ready-made solutions, most problems that can be solved with an arduino have already been solved by something else.

  45. 2 months ago
    Anonymous

    Finally a good fricking thread. Is the microcontrollers industry good as of now? I have been tinkering a lot with an arduino and I am thinking of moving to something more advanced.

  46. 2 months ago
    Anonymous

    esp32 better
    btw I use Arduino uno for monitoring water level in my home. I have written overly complicated logic for it that accounts median of several reading every 2 second and decide to turn on or off the pump.

  47. 2 months ago
    Anonymous

    I turned one into a sump pump water overflow alarm, uses an analog float switch and I used a relay for making noise cause I didn't have anything else

  48. 2 months ago
    Anonymous

    A sms/call bot, It's a esp32 but could be an arduino,

  49. 2 months ago
    Anonymous

    Door stopper.

  50. 2 months ago
    Anonymous

    I have one that I use as an ambient light sensor and another one that I use to turn my PC on and off remotely.

    • 2 months ago
      Anonymous

      what is your setup for turning the pc on/off remotely?

  51. 2 months ago
    Anonymous

    Pipebomb

    • 2 months ago
      Anonymous

      Ted would approv....... you are making a quite highly technological bomb.... scratch that, you have mail.

  52. 2 months ago
    Anonymous

    Not an UNO, but I have a Teensy I use to scan the keyboard from an old broken Clavinova so I can use it as a MIDI controller.
    Does the needful, and was simple enough to get running (thanks Yamaha for having clear schematics readily available).

  53. 2 months ago
    Anonymous

    Not sure I've used mine since this a few years ago. I've since migrated to the Pi Pico, better in pretty much every way.
    Numitrons are an underrated display technology. The video doesn't do justice just how good they look.

    • 2 months ago
      Anonymous

      Holy heck I want to make numitron!!

    • 2 months ago
      Anonymous

      Are you driving it directly with the GPIOs? Make sure that you don't exceed the ATMega's current sink capabilities.

      • 2 months ago
        Anonymous

        They need only a few milliamps, it's not an issue for just one tube. Many people actually use LED drivers to run them.

  54. 2 months ago
    Anonymous

    I bought a micro or mini one because i wanted to make a fully customizable keyboard from a cheap keyboard, but it seemed hard and I never started the project, except spending the money.

  55. 2 months ago
    Anonymous

    I have attached it to the clitoris and nipple clamps of the girl I have in my basement
    It generates a random number of seconds between 1 and 3600, and then shocks her when said number of seconds is reached, after which it resets and does it again indefinitely

  56. 2 months ago
    Anonymous

    keyboard

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