User Controls

Navigation

Niggas in Space > Technophiliacs & Technophiles > Anyone here experienced with Arduino, or at least electronic circuitry more generally?
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5

Anyone here experienced with Arduino, or at least electronic circuitry more generally?

  1. 2019-04-18 at 2:34 AM UTC
    #41
    whoami Tuskegee Airman
    nigger
    The following users say it would be alright if the author of this post didn't die in a fire!
  2. 2019-04-18 at 2:35 AM UTC
    #42
    snab_snib African Astronaut
    anyone that ever says 'dunning kruger' is a fuckin simpleton with sub 90 IQ
  3. 2019-04-18 at 2:54 AM UTC
    #43
    whoami Tuskegee Airman
    nigger
    The following users say it would be alright if the author of this post didn't die in a fire!
  4. 2019-04-18 at 2:57 AM UTC
    #44
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by whoami Studies show that people who say 'brainlet' unironically are typically rocking a solid 105 but think they're 150+

    I can't even see his post but I'm not surprised in the least he's still calling people "brainlets".
  5. 2019-04-18 at 6:09 AM UTC
    #45
    Star Trek VI: The Undiscovered Country Dark Matter [my scoffingly uncritical tinning]
    I know enough about electrics to know not to fool with it if it isn't necessary.
  6. 2019-04-18 at 6:25 AM UTC
    #46
    aldra JIDF Controlled Opposition
    typically those intercoms run a constant 5v, when you interrupt it the door lock releases.

    I actually planned on doing something similar before I moved out of the place that had that system; I had a bluetooth hardware ID detection script running off of a raspberry pi, and I meant to wire a relay in to the intercom system so the pi could trigger a disconnection on the door lock line when my phone was detected.


    Need more specifics to give you proper advice.

    1. What exactly are you trying to do
    2. Get a multimeter and test voltages. Arduino typically signals on 5v so if your intercom is running on 12v for example, you're going to need to consider that.

    Yes the audio lines are analogue, but decoding audio is more complicated than just attaching them to analogue pins. Why do you want to capture audio at all? If it's for some kind of voice recognition or command, arduino boards are not powerful enough and you'll need to pass the audio on to a computer or something for processing.
    The following users say it would be alright if the author of this post didn't die in a fire!
  7. 2019-04-18 at 3:17 PM UTC
    #47
    tee hee hee Naturally Camouflaged [slangily complete this slumberer]
    Looks complicated. Give up and have a drink instead.
    The following users say it would be alright if the author of this post didn't die in a fire!
  8. 2019-04-18 at 4:57 PM UTC
    #48
    vindicktive vinny Black Hole
    Originally posted by gadzooks Who is that motherfucker?

    They've never fallen into my radar until today… But has an early registration date.

    Is it someone's alternate troll account? Or is someone out there actually that retarded (and that much of a dick as well… double whammy).

    hes like infinityshock but less beta and with a more limited vernacular,
  9. 2019-04-18 at 5:01 PM UTC
    #49
    vindicktive vinny Black Hole
    Originally posted by aldra 2. Get a multimeter and test voltages. Arduino typically signals on 5v so if your intercom is running on 12v for example, you're going to need to consider that.

    why are you asking him to get a multimeter when all you nwant him to measure is the voltage ? thats a waste of 19 other functions.

    are you trying to zew him ?
  10. 2019-04-18 at 5:11 PM UTC
    #50
    Star Trek VI: The Undiscovered Country Dark Matter [my scoffingly uncritical tinning]
    Originally posted by vindicktive vinny why are you asking him to get a multimeter when all you nwant him to measure is the voltage ? thats a waste of 19 other functions.

    are you trying to zew him ?

    It's the Chineses fault
  11. 2019-04-18 at 8:06 PM UTC
    #51
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by Star Trek VI: The Undiscovered Country I know enough about electrics to know not to fool with it if it isn't necessary.

    It's pretty much not necessary, but it would give me all kinds of advantages like silencing the "buzzer" for certain periods of the day, and also changing the obnoxious buzzing sound to something a bit more subtle and pleasant, etc.

    And, of course, the whole process appeals to me for it's educational value.
  12. 2019-04-18 at 8:06 PM UTC
    #52
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by aldra typically those intercoms run a constant 5v, when you interrupt it the door lock releases.

    I actually planned on doing something similar before I moved out of the place that had that system; I had a bluetooth hardware ID detection script running off of a raspberry pi, and I meant to wire a relay in to the intercom system so the pi could trigger a disconnection on the door lock line when my phone was detected.

    Need more specifics to give you proper advice.

    I am so glad you came along to this thread! What are the chances someone knowledgeable around here actually engaged in the exact same project essentially?

    Originally posted by aldra 1. What exactly are you trying to do

    I go through a lot of the "why" and the end goals in my "Constructing an Impenetrable Fortress" thread.

    But essentially, I want to completely wire everything into a small computer that I can run my own code on (i.e. a Raspberry Pi), and integrate everything into my network. That way, I can intercept front door "calls" and route them in all kinds of ways, even to SMS to my phone via text-to-speech, and even get notifications when I'm not at home, etc...

    There are lots of cool possibilities, some very useful, others just fun quite frankly.

    Originally posted by aldra 2. Get a multimeter and test voltages. Arduino typically signals on 5v so if your intercom is running on 12v for example, you're going to need to consider that.

    I have a multimeter lying around... I haven't used it in at least a year, but I imagine it still works. I can easily get another one if that's not the case. They aren't that expensive.

    But, really good suggestion though! I was thinking I was going to have to test the wires in some convoluted trial-and-error kind of way, directly into the Arduino. But a multimeter can tell me a lot about the signal that each wire is transmitting.


    Originally posted by aldra Yes the audio lines are analogue, but decoding audio is more complicated than just attaching them to analogue pins. Why do you want to capture audio at all? If it's for some kind of voice recognition or command, arduino boards are not powerful enough and you'll need to pass the audio on to a computer or something for processing.

    I'm definitely prepared to incorporate a computer interface (Raspberry Pi most likely).

    Is what that snab snib character said true about the AUDIO IN and AUDIO OUT being directly connectable to a computers AUDIO IN and AUDIO OUT (obviously assuming I have soldered each wire to an auxiliary audio cable)?

    That could potentially make things a lot easier, EXCEPT, smaller computers like RPis only have AUDIO OUT.

    I suppose I could opt for an actual regular computer, I could just get something used or find something super old, but the smaller the better.

    That is, of course, assuming that this "snab snib" is even right about that...
  13. 2019-04-18 at 8:07 PM UTC
    #53
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by tee hee hee Looks complicated. Give up and have a drink instead.

    That would often be my go to response.

    But not this time.

    I will, however, have a few celebratory drinks when the projects done.
  14. 2019-04-19 at 12:51 AM UTC
    #54
    aldra JIDF Controlled Opposition
    1. Yeah you should be able to wire an analogue signal directly to the microphone socket, you might need to amplify or clean it up though. If you have a cheap or broken pair of headphones you can cut off the plug and clip the line to that, then plug it into the microphone slot.

    2. Why do you need an arduino if you're planning on using a raspi anyway? You know the raspi has 2 rows of GPIOs right?

    3. Regardless it looks like that particular intercom uses a 12v EM lock, so to unlock the door you need to interrupt the 12v line. You'll need to wire in a relay to do this. An arduino relay board/shield is a cheap and easy way to do it and will work fine with the raspi.

    4. I'll add links and stuff when I'm at home
    The following users say it would be alright if the author of this post didn't die in a fire!
  15. 2019-04-19 at 12:59 AM UTC
    #55
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by aldra 2. Why do you need an arduino if you're planning on using a raspi anyway? You know the raspi has 2 rows of GPIOs right?

    Damn, well I'll be... Shit.

    I have an RPi 2 right next to me and checked inside the case, and bam, right there.

    And I guess I don't need to solder or anything if I have those wire "sleeves" to attach raw wire to one of the GPIO pins.

    It just so happens I just bought a pack of such cables (with the "sleeve" at one end).

    I bought a whole bunch of electronics stuff that I figured I may or may not need.
    The following users say it would be alright if the author of this post didn't die in a fire!
  16. 2019-04-19 at 1 AM UTC
    #56
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by aldra 3. Regardless it looks like that particular intercom uses a 12v EM lock, so to unlock the door you need to interrupt the 12v line. You'll need to wire in a relay to do this. An arduino relay board/shield is a cheap and easy way to do it and will work fine with the raspi.

    Would something like this be the right thing?

    https://www.amazon.ca/XCSOURCE-Infinite-Timing-1S-15Min-TE678/dp/B01NCTVH57/ref=sr_1_7?keywords=electronics+relay&qid=1555635538&s=gateway&sr=8-7

    "XCSOURCE DC 12V Infinite Loop Cycle Timing Timer Time Delay Relay ON OFF Module 1S-15Min TE678"

  17. 2019-04-19 at 1:04 AM UTC
    #57
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by aldra 1. Yeah you should be able to wire an analogue signal directly to the microphone socket, you might need to amplify or clean it up though. If you have a cheap or broken pair of headphones you can cut off the plug and clip the line to that, then plug it into the microphone slot.

    This Wolfson Audio Card looks like a perfect addition to an RPi setup...

    https://www.element14.com/community/community/raspberry-pi/raspberry-pi-accessories/wolfson_pi

    I just need to find somewhere selling it (Amazon.ca is saying "unavailable").
  18. 2019-04-19 at 1:05 AM UTC
    #58
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by gadzooks 4. I'll add links and stuff when I'm at home

    Thanks again! You are the man right now.

    This is all incredibly helpful.
  19. 2019-04-19 at 1:07 AM UTC
    #59
    aldra JIDF Controlled Opposition
    http://www.circuitbasics.com/setting-up-a-5v-relay-on-the-arduino/

    In your image the big blue box is the actual relay, the components on the left aren't necessary for your project and will just add expense.

    In your case you want to use the NC (normally connected) terminal because you want power to the lock to be connected until you send a signal to interrupt it.
    The following users say it would be alright if the author of this post didn't die in a fire!
  20. 2019-04-19 at 1:15 AM UTC
    #60
    gadzooks Dark Matter [keratinize my mild-tasting blossoming]
    Originally posted by aldra http://www.circuitbasics.com/setting-up-a-5v-relay-on-the-arduino/

    In your image the big blue box is the actual relay, the components on the left aren't necessary for your project and will just add expense.

    In your case you want to use the NC (normally connected) terminal because you want power to the lock to be connected until you send a signal to interrupt it.

    Ahh ok. I will definitely give that page a read.
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5
Jump to Top