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MIDI for the Arduino - Circuit Analysis

A detailed analysis of a Midi Input and Output circuit for the Arduino
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Пікірлер: 210

  • @sandrocavali9810
    @sandrocavali98105 ай бұрын

    Congratulations! 9 years and this video is still superb

  • @mikecarroll757
    @mikecarroll7578 жыл бұрын

    Such a great and rare video to find. It gives a beginner and an advanced lesson all in one. Well done!

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    +Mike Carroll Thanks Mike!

  • @Marius-vw9hp

    @Marius-vw9hp

    6 жыл бұрын

    Agree. This is high class Youtubing :)

  • @georgekingsley3972

    @georgekingsley3972

    3 жыл бұрын

    Instablaster.

  • @Sumida2
    @Sumida28 жыл бұрын

    Good job. While it will work fine and not damage anything, the schematic in the video is slightly wrong compared to the actual MIDI standard. It is missing one 220 ohm resistor on the TX pin on output side. That will add up to the correct 660 ohms in series when driven from 5V, and not 440 ohms. The current also drops to more like 5 mA, which is the proper value.

  • @xxx7917

    @xxx7917

    5 жыл бұрын

    HidekiSamba that is correct

  • @ltlfrari
    @ltlfrari8 жыл бұрын

    THE best explanation of the MIDI interface. Saved my neck already!

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks itlfrari! Glad to hear it :)

  • @RabbitRobit
    @RabbitRobit9 жыл бұрын

    This is a clear, clean, informative video. I kept thinking about making a "well, actually..." type comment about the performance of a component, then you would say what I would've said. Great visuals, great information. Again, great job.

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    +RabbitRobit9876 Thanks RR! Glad you liked it

  • @SL-jm4rt
    @SL-jm4rt7 жыл бұрын

    This is one of the most clear tutorials I've ever watched. Thank you for the time, detail and clarity. +1 sub.

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks PE! Glad you liked it :)

  • @analytical_computer
    @analytical_computer7 жыл бұрын

    IT WORKED!!! After months trying, I got it working!!! I love you, dude!!! I used an Arduino Uno (clone) and a 4n35 optocoupler to use my old Casio keyboard as a controller in LMMS (a DAW like Ableton, FL Studio...). All it takes are different resistor values and different coding (100 ohms at opto LED, 1K ohms at collector to 5v, and using SoftwareSerial as input pin instead of main RX pin).

  • @nickzambrano
    @nickzambrano8 жыл бұрын

    This video is of supreme quality. Subscribed.

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Awesome! Thanks Nick!

  • @tinagolph
    @tinagolph8 жыл бұрын

    Your video is very enjoyable to watch. the explanations are easy to understand and for someone whose English is not the native language, your English is perfect. thank you

  • @neail5466
    @neail54666 жыл бұрын

    What can i say you are the best teacher ever i have seen you do not assume that anyone "must or should know this or that" you do it from grass roots...... Exceptional, wish the videos help all. Even those having no background could get all of this....thank you

  • @G8tr1522
    @G8tr15229 жыл бұрын

    This taught me so much more than what I was wanting to know. Great tutorial!!!!!

  • @tehedx
    @tehedx2 жыл бұрын

    Thanks a lot for explaining every component and its purpose in the circuit! This really helped refreshing my memory (20+ years ago). Currently building a MIDI-thru box as a warmup project :)

  • @NotesAndVolts

    @NotesAndVolts

    2 жыл бұрын

    You are welcome!

  • @sennabullet
    @sennabullet4 жыл бұрын

    I just want to thank you very much for making this video. I'd shake your hand if I could! I don't think I have ever seen someone explain a concept quite as well as you did in this video. Beautifully presented. Exceptionally well explained.

  • @matcarpes
    @matcarpes7 жыл бұрын

    I'm amazed by how well you explained everything! Seriously, thanks a lot!

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Matheus!

  • @litalienvisual
    @litalienvisual Жыл бұрын

    Great explanations, it really helpsunderstanding the MIDI In circuitry based on the 6N138

  • @the_rabbit
    @the_rabbit Жыл бұрын

    This is amazing. I'm building an Arduinoboy and this just helped me understand what the hell I am actually doing.

  • @UpcycleElectronics
    @UpcycleElectronics8 жыл бұрын

    Awesome production quality. A very clear, easily understood, and well articulated explanation. This was my first encounter with Notes and Volts. (Liked/Subscribed/Commented/Saved to personal projects playlist)

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks Jake and welcome to the channel!

  • @lopyus
    @lopyus8 жыл бұрын

    Nicely explained! You earned a subscriber

  • @marvinmatter1501
    @marvinmatter1501 Жыл бұрын

    man, you're explaining this in such a great way. the visualisation helps a ton, you taking it step by step makes it so easy to follow. big thanks!

  • @NotesAndVolts

    @NotesAndVolts

    Жыл бұрын

    Glad you liked it!

  • @marvinmatter1501

    @marvinmatter1501

    Жыл бұрын

    @@NotesAndVolts absolutely. Your guide actually made it possible to build our PolyTape-O-Tron in class. Its 4 Casette players with tape loops, whos motor speed is controlled via an arduino that receives MIDI from DAWs. This makes it a 4-voice polyphonic synthesizer. Big fun!

  • @kostaschousianiths6076
    @kostaschousianiths6076 Жыл бұрын

    Currently studying electronics engineering, attempting a homebrewed project, I can't express enough how clear your explanation of the circuit is. Congratulations for real!!! (instant sub)

  • @NotesAndVolts

    @NotesAndVolts

    Жыл бұрын

    Thank you very much Kostas!

  • @squarefrog
    @squarefrog8 жыл бұрын

    Came here looking for why you need the optocoupler on the midi in. Now I know how that entire circuit works. Excellent video, keep them coming!

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Awesome! Thanks Paul!

  • @andyq2829
    @andyq28293 жыл бұрын

    Thank you very much . You have opened a door for me to enter into the world of MIDI & Arduino . Very much appreciated .

  • @sv1onk
    @sv1onk2 жыл бұрын

    The most well documented video I ever watched. Congratulations.

  • @NotesAndVolts

    @NotesAndVolts

    2 жыл бұрын

    Wow, thank you!

  • @rsrini7
    @rsrini76 жыл бұрын

    No Collage / School can teach better than this in 16 mins. Actually i watched this video couple of times to understand it better. Please help to share your knowledge. I am from India and teaching my students. Thanks.

  • @NotesAndVolts

    @NotesAndVolts

    6 жыл бұрын

    Thanks Srini! I'm glad you like it. Say hi to your students for me :)

  • @thetanil3702
    @thetanil37027 жыл бұрын

    this is one of the best things i've ever seen on youtube. great work.

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Theta!

  • @Colin_Ames
    @Colin_Ames9 ай бұрын

    What an excellent tutorial. You could not have made it any clearer!

  • @NotesAndVolts

    @NotesAndVolts

    9 ай бұрын

    Thank you!

  • @schrotti788
    @schrotti7884 жыл бұрын

    Thank you! I never have seen a video with such detailed explanation. Great!!!

  • @sennabullet
    @sennabullet8 ай бұрын

    What an excellent video! Clear explanations with great graphics! Thank you for sharing your knowledge.

  • @NotesAndVolts

    @NotesAndVolts

    8 ай бұрын

    You're very welcome!

  • @boatloan3543
    @boatloan35432 жыл бұрын

    hey, pal Dave -- thanks so much for this! I was struggling with really erratic signals from my optocoupter but as soon as I added the 4.7K drain resistor, it was rock-solid. Your diagrams and explanations are top-notch.

  • @NotesAndVolts

    @NotesAndVolts

    2 жыл бұрын

    Glad it helped!

  • @TATO10892
    @TATO108929 жыл бұрын

    What a magnificent explanation. You've earned an Argentine subscriber. Nice work.

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    Thank you and welcome aboard!

  • @wackojacko1997
    @wackojacko19979 ай бұрын

    Super helpful video. Very well done -- direct and to the point. Nothing wasted and very clear. Thank you.

  • @NotesAndVolts

    @NotesAndVolts

    8 ай бұрын

    Glad it was helpful!

  • @cruepprich
    @cruepprich2 жыл бұрын

    Beat and clearest explanation I’ve seen on electronics period! Thanks!

  • @NotesAndVolts

    @NotesAndVolts

    2 жыл бұрын

    Glad you liked it!

  • @erichimmelblau877
    @erichimmelblau8779 жыл бұрын

    Wow, very well explained. I rarely like videos, but this one definitely deserves one.

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    +Eric Himmelblau Thanks Eric!

  • @markfdesimone
    @markfdesimone5 жыл бұрын

    This video was excellent! I rarely find resources that do such a good job of demystifying something.

  • @NotesAndVolts

    @NotesAndVolts

    5 жыл бұрын

    Thanks Mark!

  • @AlessandroGiancane
    @AlessandroGiancane3 жыл бұрын

    Serial transmission (in particular MIDI) begins from the least significant bit up to the most significant bit. So, 10010100 at the beginning of the video actually has to be read as 00101001, which is not a MIDI message. Other than that, GREAT video!

  • @davidecarollo70
    @davidecarollo70 Жыл бұрын

    The best midi explanation on yt! Great!👏👏👏

  • @tubeDude48
    @tubeDude486 жыл бұрын

    Although I understand all of this and have built a number of Boxes with a number of: IN / OUT / THRU Jacks; your instructions are Right-On.

  • @NotesAndVolts

    @NotesAndVolts

    6 жыл бұрын

    Thanks Ted!

  • @konstanzification
    @konstanzification3 жыл бұрын

    Thank you so much for all the midi videos, I've been watching midi videos for the past few days and yours are the best!!!! Thank you!!!!!!!!!!

  • @NotesAndVolts

    @NotesAndVolts

    3 жыл бұрын

    You're very welcome!

  • @TangoMikePapa
    @TangoMikePapa2 жыл бұрын

    Excellent and well produced video!

  • @t4ttyt3ddyr0ck3r
    @t4ttyt3ddyr0ck3r5 жыл бұрын

    So glad I found this channel. I've been looking for some examples of how to use the Arduino as a midi controller, but with full explanations, not just images and codes. I am wanting to use my Arduino with Multiplexers to make something similar to the massive Midi Box 64 controllers, to build a controller for a VST Midi Modular!

  • @lloydrmc
    @lloydrmc Жыл бұрын

    As happens frequently with such things, I knew most of it already. It's always nice to have all the various gaps in my knowledge filled in and integrated. Most importantly; the style and manner of your presentation is simply marvelous: perfect pacing, pleasing little animated flourishes, and seamless repetition and summarization. KZread originally served me an episode later in the series, and I'm glad I decided to load the Playlist and watch all of your videos on this subject.

  • @marcuhrich3784
    @marcuhrich37846 жыл бұрын

    This is the best video I've seen on the topic. Nice work and thanks!

  • @playinmyblues
    @playinmyblues7 жыл бұрын

    Great video. I have been wanting to learn about MIDI for a while. It made some things very clear and look for more videos like this.

  • @eirikolsnes
    @eirikolsnes8 жыл бұрын

    Very nicely done! Looking forward to watching the rest right away : )

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks Eirik!

  • @EBJ0
    @EBJ04 жыл бұрын

    Excellent work. It is great to find a well done explanation of this circuit. Thank you!

  • @NotesAndVolts

    @NotesAndVolts

    4 жыл бұрын

    Thanks Joe!

  • @vikinglord7252
    @vikinglord72526 жыл бұрын

    Epic video! I'm about to start building a midi sequencer for my microcontrollers class and this was a great overview! Now on to some more of your vids!

  • @sambanks2996
    @sambanks29962 жыл бұрын

    Excellent tutorial thanks!

  • @Johnzoful
    @Johnzoful9 жыл бұрын

    Fantastic video, I'm just getting into all this stuff and this kind of circuit-first approach is super helpful. Thanks so much!

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    +Johnzoful Thanks Johnzoful! Glad it helped.

  • @HRSCourses
    @HRSCourses4 жыл бұрын

    Thanks for this really clear explanation. Never knew this, now I know.

  • @lucaguglielmetti3806
    @lucaguglielmetti38063 жыл бұрын

    this tutorial is amazing! congratulation for the channel

  • @bubuElec
    @bubuElec3 ай бұрын

    Amazing video !! ⭐ Thanks man 🙏

  • @improziv
    @improziv8 жыл бұрын

    Excellent tutorial!!

  • @SteveDavidsonGuitar
    @SteveDavidsonGuitar7 жыл бұрын

    Holy smoke! That was clearer than 8k res.......SUBSCRIBED!

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Steve! Welcome to the channel

  • @VasaMusic438
    @VasaMusic4389 жыл бұрын

    What a Great Tutorial !!! The best I ever met !!! Thanks

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    Thanks Pierluigi!

  • @snugglepuff33
    @snugglepuff336 жыл бұрын

    This is just an amazing channel.

  • @NotesAndVolts

    @NotesAndVolts

    6 жыл бұрын

    Thanks Kevin!

  • @pekkagronfors7304
    @pekkagronfors73047 жыл бұрын

    Revisited this video again. This is really god stuff.

  • @autofigure00
    @autofigure006 жыл бұрын

    that was extremely informative and helpful

  • @StevenFAllen
    @StevenFAllen8 жыл бұрын

    Very good series. Tahnks

  • @alkatechnology
    @alkatechnology11 ай бұрын

    interesting explanation brother, keep spirit to give us good information bro

  • @NotesAndVolts

    @NotesAndVolts

    11 ай бұрын

    Thank you, I will :)

  • @vibertthio
    @vibertthio8 жыл бұрын

    really great even for student majoring in EE

  • @Boxcow45
    @Boxcow457 жыл бұрын

    Great tutorial. Love this channel!

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Boxcow!

  • @thierryeymard9259
    @thierryeymard92598 жыл бұрын

    fantastic,very well explained...thx

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks Terry!

  • @els1f
    @els1f9 жыл бұрын

    this is great, you're great... thanks!

  • @studennison5434
    @studennison54346 жыл бұрын

    Superb!

  • @iddeegee
    @iddeegee2 жыл бұрын

    UPDATE. I could get it to work with 4n35 only (sw serial is not a good idea for midi lots of misses so RX is a way to go). Same diode between 1 and 2, 1 goes to (midi 4) thru R1 (220-330+ Ohm)... (use any you have), 2 goes to (midi 5). 4 goes to GND, 5 goes to RX and thru R2 (800-1.2K) to 5V. That's it. 3 and 6 pins are not used. OLD I cannot get it to work with 6n136, PC817, 6n138 all of them work separately, but not together with the Atmega328p. Tried 2 different functional midi outs. Tried it with 2 new Arduino Nano, with a standalone atmega328p on a board (with all required components) Rx,tx are workings because I use them to upload code via USB-TTL. I've tested the schemes manually by connecting +5v to pin4 and ground to pin5, so i can get LOW signal out of RX, which I can read on any digital or analog inputs, even if connected to rx on arduino. So it works by connecting external VCC. But if I connect to midi outs (tried 2 different 1working with 100% working cables) to this scheme it just does not react at all... It does not read. I've tried Midi input test example, serial software, just serial with baud rate 31250... it just does not work and I don't understand why.

  • @nathanbotts2498
    @nathanbotts24986 жыл бұрын

    Awesome explanation! Many thanks!

  • @NotesAndVolts

    @NotesAndVolts

    6 жыл бұрын

    Thanks Nathan!

  • @robfielding8566
    @robfielding85668 жыл бұрын

    I'm building a MIDI filter with Arduino Pro Mini, and noticed the odd thing about gnd of MIDI out being connected at one end of the cable. I was able to get the board to come up with power from a MIDI in. It can't use the optocoupler (because it gets power from IN). It works (a MIDI IN/OUT filter that can be reprogrammed with Arduino code). The main deviation is that I connect the IN.4 (pin 4 of MIDI IN) straight to regulated power), IN.4 to 220ohms to 5v, IN.2 to ground, IN.5 to rx. Then I think it's OUT.5 to tx, OUT.4 to 220 ohms to vcc.

  • @pionyir
    @pionyir4 жыл бұрын

    great tutorial! thanks for sharing

  • @zaidhussain5206
    @zaidhussain52068 жыл бұрын

    Thank you so much for details , very informative

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks Zaid!

  • @caritas3015
    @caritas30159 жыл бұрын

    Fantastic tutorial, I love the graphics also. Just the right amount of detail always validated by an example. Well done! I am definitely a subscriber now and cannot wait to see your website. Thanks and keep it up, please?

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    Thanks Stevie! Welcome aboard

  • @cbmeeks
    @cbmeeks9 жыл бұрын

    That was awesome!

  • @krzysztofwitkowski6982
    @krzysztofwitkowski69829 жыл бұрын

    Unfortunately, MIDI out circuit from this video can destroy ATmega IC. (I done it two times ;/) You should use transistor to separate microcontroler pin from MIDI out. But still very good video, analysing of in and out circuits helped mi to understand how actually MIDI transmission works

  • @abhilashpatel1809

    @abhilashpatel1809

    5 жыл бұрын

    can you please give more information on whyATmega IC get failed.

  • @BrunoDiMicco
    @BrunoDiMicco9 жыл бұрын

    awesome, thanks a lot

  • @NerchiaFresca
    @NerchiaFresca6 жыл бұрын

    amazing video. good job!

  • @DeathmetalSaiyan
    @DeathmetalSaiyan7 жыл бұрын

    Perfect explanation!! Keep doing your thing man :)

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Luke!

  • @motelflamingo
    @motelflamingo8 жыл бұрын

    Great videos, man! Thanks, I'm stunned.

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    +Guilherme Barros Thanks Guilherme! Glad you like them

  • @dasuino
    @dasuino7 жыл бұрын

    Muito obrigado por compartilhar isso! VIREI Fã do canal e do site!

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Gracias Daniel!

  • @ignaciodelvillararce4925
    @ignaciodelvillararce49256 жыл бұрын

    Amazing video

  • @BohicaJones22
    @BohicaJones227 жыл бұрын

    Thank you for this playlist :)

  • @ivanex12
    @ivanex128 жыл бұрын

    awesome video!

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks Ivan!

  • @ivanex12

    @ivanex12

    8 жыл бұрын

    i want to make a footswitch for amplitube with my arduino. what tutorial i need to see for make something like this?

  • @TheEleventeen
    @TheEleventeen4 жыл бұрын

    Wonderful video ! I instantly subscribed ! X🤘🏻X

  • @fiorettim
    @fiorettim4 жыл бұрын

    isn't the anode the negative pole though, it being the part where oxidation occurs, whereas the cathode is involved with a reduction reaction and therefore the positive pole (attracts electrons)

  • @chromatic-me

    @chromatic-me

    3 жыл бұрын

    I think the reason for the naming is that in a rectifier circuit, the positive voltage appears at the “anode” of the diode. I agree that it seems wrong in the video.

  • @geraldoribeiros
    @geraldoribeiros6 жыл бұрын

    Excellent video. Please do a tutorial talking about rotary encoders and MIDI controllers.

  • @CrisPlebeu
    @CrisPlebeu Жыл бұрын

    Thank You very much for making this precious video! Win a subscripted!

  • @NotesAndVolts

    @NotesAndVolts

    Жыл бұрын

    Welcome aboard :)

  • @gismosgadgets8343
    @gismosgadgets83437 жыл бұрын

    thank you so much for this video. was just what i was looking for. keep up the good work. ~GG

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks G&G!

  • @gismosgadgets8343

    @gismosgadgets8343

    7 жыл бұрын

    :-)

  • @fphenix
    @fphenix5 жыл бұрын

    I believe from 1:40 to 2:00 is misleading because it is shown on a timing diagram. AFAIK, the LSB is sent first (i.e just after the Start), the MSB is sent just before the Stop, just like RS232. Hence the message here is actually 0x29 (not 0x94 as you imply) and 0x29 is most likely a data byte, certainly not a Status byte which must have its MSB high. So a message "Start note / channel 5 (4+1)" should be drawn as L(Start)-LLHLHLLH-H(Stop) on a timing diagram. Watch out, I've seen several wrong diagrams on the Internet...

  • @fphenix

    @fphenix

    5 жыл бұрын

    On the other hand I loved your part on Optocoupler.

  • @NotesAndVolts

    @NotesAndVolts

    5 жыл бұрын

    Hi Frederic. Midi is big-endian and the MSB of the status is always low.

  • @fphenix

    @fphenix

    5 жыл бұрын

    That's incorrect. BTW: I'm talking about the serial physical communication, not how to read a byte on a screen! The status messages go from 0x80 to 0xFF, that means MSB=High right there and serially the MSB is sent last just before the Stop-bit (so close to the right hand side on a timing diagram). Watch this (esp. from 16.40): kzread.info/dash/bejne/iGSAz6qGZZfUp8Y.html

  • @NotesAndVolts

    @NotesAndVolts

    5 жыл бұрын

    kzread.info/dash/bejne/a5mi2MeieZPLl5c.html at 12:40

  • @fphenix

    @fphenix

    5 жыл бұрын

    Yep, it confirms I am right: the oscillo shows the 0x90 as Start00001001Stop, so LSB first, MSB last. Funnily enough the diagram he then pops up is wrong, but the scope doesn't lie!

  • @zsoltnagy2403
    @zsoltnagy24035 жыл бұрын

    thank you, thank you & thank you!!! you are awesome

  • @NotesAndVolts

    @NotesAndVolts

    5 жыл бұрын

    Thanks Zsolt!

  • @jeffbeck6501
    @jeffbeck65019 жыл бұрын

    This is what a perfect video looks and sounds like. It felt like I was getting high.

  • @NotesAndVolts

    @NotesAndVolts

    9 жыл бұрын

    Thanks Jeff! I really appreciate the support.

  • @JamesHumberstone
    @JamesHumberstone8 жыл бұрын

    Superb video. Wow.

  • @NotesAndVolts

    @NotesAndVolts

    8 жыл бұрын

    Thanks James!

  • @yusun5722
    @yusun57226 жыл бұрын

    Very good videos. One question I have is that at 10:28: how can the diode has 5V when there are two 220 ohm resisters are connected in serial?

  • @mstergtr

    @mstergtr

    5 жыл бұрын

    You're right, it can't be 5 volts. The principle should be the same with the lower voltages amounts I suppose.

  • @pockeybearmilk264
    @pockeybearmilk2647 жыл бұрын

    very very goooood video , thank you .

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Pockey!

  • @robertrobert5583
    @robertrobert55834 жыл бұрын

    An excellent video. Thank you for posting it. I wonder if you might consider not using background music though? My type of hearing impairment makes speech harder to follow against background noise. Best wishes.

  • @bivouacrecording3412
    @bivouacrecording34124 жыл бұрын

    Do a video on MIDI in out communication via Bluetooth LE to Arduino please!!! What libraries do I use, code tips, etc. That would be very helpful! Thanks!

  • @pantalalabs
    @pantalalabs7 жыл бұрын

    awesome!!! thank you

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks Gibran!

  • @mrtomgreeen
    @mrtomgreeen4 жыл бұрын

    At 11.04 I don’t understand why you say it’s passing 0.7v? I thought it subtracts the 0.7v forward current from 5v leaving 4.3v to pass through the LED?

  • @jeberle1

    @jeberle1

    3 жыл бұрын

    The two components (the diodes) are in parallel. If the component on the left were an open circuit (missing), the component on the right would see all 5V. If the component on the left were a short circuit (just a wire) the component on the right would see 0V. The component on the left has a voltage drop of 0.4V (imagine it's a resistor), so the component on the right sees that same voltage, 0.4V. No more or less. This is w/in the diode's spec and so does nothing, nor is it harmed by this arrangement.

  • @GustavoMM1972
    @GustavoMM19726 ай бұрын

    Hola, una consulta, el 6n138 solo necesito para la entrada midi? Mi proyecto es enviar comandos CC# a un roland gr-55, necesito poner un 6n138 en el circuito de salida? Gracias

  • @mariusvanhorssen3047
    @mariusvanhorssen30477 жыл бұрын

    Excellent video. I found only one fault, the conclusion around 1:55 is wrong. The LSB is transmitted first. So, the interpretation of the data is incorrect.

  • @jimscobie6646
    @jimscobie66467 жыл бұрын

    you guys make great videos. I still have no idea what you are talking about but you say it well. lol

  • @NotesAndVolts

    @NotesAndVolts

    7 жыл бұрын

    Thanks James!

  • @djmips
    @djmips4 жыл бұрын

    The lag between OFF and ON should be measured at 3.0 Volts for ON and not the zero crossing.

  • @mindseyetechnology4095
    @mindseyetechnology40952 жыл бұрын

    great video - how about a version with no music track ?