MIDI Interface

Does any one know of a way to make a usb to midi out .its like this computer >> Usb to Midi >> and to a device which can accept midi like the Arduino MIDI Drum. i want to make a simple circuit that i can build that is easy to make and requires minimal partshere is the link to the Arduino MIDI Drum

Topic by chrischavez   |  last reply


Interface board

I want to experiment with controllers/interfaces and stuffis this a good interface board (for me?)http://www.velleman.be/nl/en/product/view/?id=351346

Topic by Firehunter   |  last reply


Wireless Interface? Answered

Hello, Instructables.      I know it seems like I ask too many questions and post too little ibles, But trust me. I'm working on one right now. And thats why I am here. I am working on a wireless snes controller for PC, and am having problems finding a wireless interface for it. I know theres the XBee, which, being on a limited budget, is off the table. theres Bluetooth, which i have VERY little expirience in, but considering that just makes it sound like it would be fun, and, last but not least, there is InfaRed, which, having recently recieved a IR LED assortment from Electronic Goldmine, might be an option. i will look more into BT, since i do have a bluetooth enable pc anyway.

Question by Krayzi99   |  last reply


The future of Computer Interface ?

Although this is a little dated already (Feb. 2010),  I thought this was rather interesting in how it took the IBM "table" computer,  and freed it from the confines of the table, as it were. Here, at this link, is the video showing this interface, ce / OS being demonstrated. 

Topic by Goodhart   |  last reply


Web interface help? Answered

I would like to know if its possible to build a website with the raspberry pi.I would like to know if  it was possible to design something in such a way that if i clicked a button on the website or web interface it would run a program on the raspberry pi?

Question by akinich   |  last reply


Digital Taste Interface? Answered

Hello Instructables. I had a question for my newest project. I am looking to make a Digital taste interface with Arduino like this http://www.nimesha.info/digitaltaste.html#dti. The video says that the current needs to be altered between the range of 10 and 140 microamps. I have bought a 10k and 100k digital potentiometer, as this was my first idea. Does anyone have a better idea as to control current at ranges that low? 

Question by headslant   |  last reply


interface arduino with MLX90620?

Does anyone know of an arduino sketch or library that can drive a 16x4 array of LEDs from the input from a MLX90620 sensor?  I want to make a basic thermal viewer, that doesn't need to read exact temperature, just dim them according to the input.   

Question by jduffy54   |  last reply


USB Interface Problems

I recently purchased a SparkFun iPod Breakout board http://www.sparkfun.com/commerce/product_info.php?products_id=8295I am currently trying to attach it to my computer via USB. I got a usb socket, and linked it up to the breakout, but when I plugged it into my computer the iPod begins to charge, but does not recognize it is connected to the computer. I have got the USB + to 32, USB GND to 16, USB D+ to 27 and USB D- to 25. I have checked all the connections, which are fine. I have even attached another USB cable to it (which I know works) and the same thing happens! In desperation I switched the data wires, but exactly the same thin The iPod works as normal with its original cordThe weird thing is that when I reboot the computer, the iPod recognizes the computer and goes into the 'Do Not Disconnect' screen, but as soon as the computer leaves the bios it goes back to charging. Any elite instructable members got any ideas?thanks

Topic by phib3r_0ptik   |  last reply


Yet another change to the UI? Answered

When are the powers that be going to finalize the UI? It is a real pain in the tush to come here and find that, yet again, the site has been revamped (how many times in the last couple of months???), leaving the user to grope in the dark just to find that their usual link(s) has (have) disappeared. Take a cue from the big boys and only completely redo the layout (especially navigation) once every year or two, and don't change it completely. Familiarity keeps the customer coming back. Confusion drives them away. That way, people won't get pi**ed off and leave. I mean, how would you feel if you went to drive your car and the control layout changed from the day before. It'd drive you mad, wouldn't it? (See, this is what happens when you have a multitude of volunteers working on the website, no clear direction.) Qa

Question by Quercus austrina   |  last reply


basic stamp 2 lcd screen interface?

My friend just gave me a kawaski dvd player set, and i want to know how to interface the screen with a basic stamp 2 microcontreller. plz help me, id really appreciate it.

Question by sci4me 


I need help creating a basic interface for arduino. Answered

I was wondering what would be the best prgram to learn for creating UI's for sending signals to an arduino, this would be simply like a button or box that a value could be typed in for now i plan to just play with some LED's but my goal is to have an interface with the equivalent of a d-pad so that i could control the pan/tilt of my latest project and later on (my next project) control the speed of motors/servos or activate preset patterns for a spirograph  i would really like to get started and learn how to but im at a loss in where to start

Question by shabaki   |  last reply


How would I go about creating a device that will move on its x and z axis according to an input degree?

I am looking to set up a satellite on my roof and am hoping to be able to control it from my room. For now I just need to create a base that can move on its x axis and later the z axis. I can understand for the first part I would need a motor but have no idea on how to interface it with the ability to recognise the compass degree it is facing. For the second part, I believe I may want a hydraulic arm that is hinged to the base (which the satellite lies on) but again have little idea on how to interface it with the ability to detect the angle it is pointed at. My final hurdle is to be able to control all of this. This may well be ambitious when i have little experience with motors and interface but it's something I want to do.

Question by pyrosine   |  last reply


is there a way to connect de arduino to a palm?

 i would like to use the touch screen to control a servo, or to input a text string  to the arduino

Question by brunoaco   |  last reply


need IR transmitter / receiver projects .. Answered

HI I need a project using IR transmitter / receiver interface with pc that whenever there is a cut or an object disturbing the transmission between these transmitter and receiver sensors, PC should show message according to the situation of these sensors and that will happen using the parallel port  if anyone have tried something like this or if you know a site have projects about it please help me, I've never done projects using the parallel port  

Question by CSE251   |  last reply


How to interface a (snack/drink) vending machine interface to a PC?

Hello experts and entrhusiasts, I don't know much about the currently used food/drink vending machines (Bianchi, SAECO, etc). My question is the following: -is it possible to interface/intercommunicate them with a PC ? -what sort of connection do they have (RS232, CANbus,...) ? -do they use a special language/operating system for managing the vending stuff  ? - are there available schematics, hardware/software descriptions about these machines ? What I want to do is to query them about of the actual state of products(number of selled/not selled) thank you your kindness katus

Question by katus   |  last reply


RGB LED interface with arduino

I need to drive 5 3W RGB LEDs in series using an arduino. The maximum current required is 350mA each for R G and B dyes. and minimum current requirement is 2.4V, 2.4V and 3.5V respectively. What should I use to interface the LEDs with my arduino as the output current of each arduino pin is 50mA maximum Thanks in advance

Topic by pratham123   |  last reply


How to interface a microcontroller with a switch? Answered

I have a device with a lever-style switch, like the bottom switch in the picture of this article. http://en.wikipedia.org/wiki/Miniature_snap-action_switch With some multimeter probing, i found that of the three pins, the middle is unconnected. The left pin is always connected to ground. The right pin is connected to ground when the switch is unpressed. When the switch is pressed, the right pin is unconnected. How can I use a microcontroller to stand in for this switch? I'd like to have it activate the switch every 2 seconds. I have the software done, and just need to get the hardware set up. Help is apreciated.

Question by 4lifenerdfighter   |  last reply


Interfacing to a TI Graph Calc

I was looking at how to interface an lcd screen to a microcontroller and learned they have a 14-16 pin interface. Guess what I found out? An old Texas Instruments calculator I tore apart has a 14 pin interface on the lcd screen, with the first two pins being power! Just like on a regular lcd screen! I am going to atempt to interface my OOPIC to it! If this works, I promise you there will be an ible!

Topic by gimmelotsarobots   |  last reply


Interfacing HC 05 with Atmega?

Somebody please tell me the code to turn ON and OFF a Led on atmega8 board using hc 05 Bluetooth module Some what like this

Question by Mayoogh_Girish   |  last reply


Phototransistors interfacing with a serial port

So I really don't have too much experience with interfacing stuff and PCs (read: none) and I have a question. If I was to wire up about 5 phototransistors in series, all with a laser aimed at all of them, with the anode hooked up to TxD, and the cathode hooked up to RxD, and I had a program sending 500 bits to it per second, and checking for response.. will it basically be able to detect if one of the lasers are broken? Thanks!

Topic by cvxdes 


How to interfacing cc2500 into pc?

Now, i am stuck in my project this state,the data is transfer to pc using cc2500 and pic,then transfer the data pc to pic16f877a.how to takw the data in pc,also i am using visual studio,but how to get the data in cc2500. please helb me  

Question by kumar manoj   |  last reply


Vision Controlled Interface Controller

Is it possible to make a 360 controller and create a vision controlled (right) c-stick that I can use to aim at something simply by looking at it on the screen? Is this similar to what paralytics use to communicate? Is there any way that I could use that technolgy to OWN my cousin at Halo?

Topic by MattGyver92   |  last reply


interfacing with an old laser spectrometer

I attained a spectrometer and related parts out of an old Beckman Coulter CX7 instrument few searches of the pcbs result in usable information. I'm by no means an expert, but I can solder and have a lot of experience 'tinkering' and as an engineering student I would love to get this thing working.  The images I've attached are of the sensor and control board

Question by BlitzkriegBrain   |  last reply


Interfacing a robot with landline phones? Answered

What i would like is that i have an answering machine at home that starts after a certain amount of rings. What i want is that when the machine answers the robots listens in and waits for a certain sequence of keys to be pushed. It will then send the tone 1 down the line and somehow i would also like the cal to be ended(but that isn't necessary).

Question by wee_man   |  last reply


Gameboy/Ipod Interface, eh?

So I have my old Gameboy Color and I have my Ipod. The color doesnt have much use as I dont use it very often but I use the Ipod all the time. I want to put the two together to form something cool and/or intersting. I don't want to simply make a case or anything, I would rather wire up a cartridge to display the...display of the Ipod. Added functionality would be in the use of the buttons to change volume and track and whatnot. Any help would be awesome.

Topic by Danielk   |  last reply


Simple Audio to Button interface?

Dear Highly esteemed members of Instructables, I've had this Idea in my head, and I REALLY want to make it possible. I have a feeling that doing so would be a cinch if I had any sort of understanding of wiring at all. Basically, this is my idea. I want to use old buttons (and possibly an analog stick) from a gamecube or n64 controller and wire them so that they play a note when pressed. I don't necessarily need to include the analog stick in my design, if doing so would make the project a good deal harder. I'm looking to include about five buttons. And if the analog stick was included , at best I would want it to move the note in half steps, up or down, but I could also settle for setting it to it's own four notes, or not using it at all. As aforementioned, I have no Idea how any of this stuff works, or if it is even possible. So do let me know if this is even something that someone like me can do. And if it is, try to err on the side of over explaining if you can help it.

Topic by jdiggs1   |  last reply


arduino interfacing with ps2 keyboard

Simple_Testmodify.cpp: In function 'void setup()': Simple_Testmodify:34: error: no matching function for call to 'PS2Keyboard::begin(int&, int&)' C:\Program Files\arduino-1.0\libraries\PS2Keyboard_014A/PS2Keyboard.h:77: note: candidates are: void PS2Keyboard::begin(int) Simple_Testmodify.cpp: In function 'void loop()': Simple_Testmodify:52: error: 'begin' was not declared in this scope THE ABOVE ERROR WAS SHOWN ON VERIFICATION OF THE PROGRAM KINDLY ADVICE THIS WAS THE CODE I USED TO INTER FACE PS2 KEYBOARD WITH ARDUINO UNO  #include int DataPin = 8; int IRQpin =  3; PS2Keyboard keyboard; void setup() {   delay(1000);   keyboard.begin(DataPin,IRQpin);   Serial.begin(9600);   Serial.println("Keyboard Test:"); } void loop() {   if (keyboard.available()) {     char PS2_ENTER;     char PS2_TAB;     char PS2_ESC;     char PS2_PAGEDOWN;     char PS2_PAGEUP;     char PS2_LEFTARROW;     char PS2_RIGHTARROW;     char PS2_UPARROW;     char PS2_DOWNARROW;     char PS2_DELETE;     // read the next key        char c = keyboard.read();         // check for some of the special keys     if (c == PS2_ENTER) {       Serial.println();     } else if (c == PS2_TAB) {       Serial.print("[Tab]");     } else if (c == PS2_ESC) {       Serial.print("[ESC]");     } else if (c == PS2_PAGEDOWN) {       Serial.print("[PgDn]");     } else if (c == PS2_PAGEUP) {       Serial.print("[PgUp]");     } else if (c == PS2_LEFTARROW) {       Serial.print("[Left]");     } else if (c == PS2_RIGHTARROW) {       Serial.print("[Right]");     } else if (c == PS2_UPARROW) {       Serial.print("[Up]");     } else if (c == PS2_DOWNARROW) {       Serial.print("[Down]");     } else if (c == PS2_DELETE) {       Serial.print("[Del]");     } else {             // otherwise, just print all normal characters       Serial.print(c);     }   } }

Topic by akshay12345   |  last reply


Interface RS232 to 12 Volt One Wire

I am interested in a circuit to interface an RS232 to a special 12 volt ONE-WIRE circuit.  It is special because it is an controller used in industry.  So I have a MAX3232 to convert my Arduino to RS232 levels, but that will get me to 2 wires.  I need to be able to make that into a ONE-Wire at 12 volt levels (not 3-5 etc) .  I see the MAXIM circuit (attached) for converting to one-wire at lower levels, but can't find anything to utilize a 12 volt one-wire level.  Hope I am being clear and thanks for your assistance.

Topic by appliancer   |  last reply


How to interface BH1750 light sensor to arduino uno rev 3 and LED bulb to achieve automatic dimming LED bulb?

The light that the LED bulb will be given off will corresponds to the light intensity that the light sensor will detect 

Question by misaelrnguho   |  last reply


Controlling ServoBlaster with Keyboard Keys?

I am working on a project involving multiple servos, a pi, Servoblaster, and a short period of time left. What i was wondering, is that is there a "interface" of sorts for servoblaster that would allow me to control the servos with keys on my keyboard? I saw a thread where someone made an interface where you could switch between servo pins using left and right arrow keys, and adjust the servo with the up and down arrow keys. However, this could only be done one at a time. What i want, is to be able to control all 7 servos with 14 keys. Because of the lack of time (This is needs to be done before next week Saturday) i don't care if i have to access terminal with putty to control said interface. (A web page would be nice, but again, lack of time, and first i need the actual interface.) It really isn't an interface, i guess... I don't need to see what i am pushing/what is happening, so long as the servos move when the keys are pressed. I have a custom ./servod, which basically changes pin layout, and the max and min for the servos. Beyond that, ServoBlaster is vanilla. How would i do this? I haven't written any code for Servoblaster, nor any massive coding in general (I know basics of Python, nothing more.) Is there something like this that exists? Anyone have free time to make it? I am willing to try, so long as i am told what needs to be done. (Time is short, and i am busy. Though, i will still make an effort.) Thanks for your time!

Topic by RocketPenguin   |  last reply


large autonomous robot brain and drive system ideas? Answered

So I have been looking at several different instructables and articles online and I'm really interested in trying to build a large robot of my own, similar to but updated and maybe more refined than the robot butler instructable here. Right now though I'm trying to figure out what I would run it off of (computer, micro controller etc) and how to interface the motors with this control system. Wheelchair motors seem to be a great option for the motors and wheels so what sorts of options do I have to interface that with a computer or how could I interface it with just an arduino or something similar? The robot butler instructable used phidgets and several relays to control everything but I'm wondering if there is a simpler or better way. I want to be able to control the two wheelchair motors and wheels as a base as wells as probably several servo motors for the robot's arms and potentially a webcam and some speakers. Any help anyone can give on ways to do this sort of thing or guidance on how to even begin is greatly appreciated. Thanks! 

Question by dstech   |  last reply


I have a USB webcam, and an LCD screen. Is there a way to connect one to the other, and make a digital viewfinder? Answered

I have a USB webcam, and a small LCD screen. Assuming I cut open the USB wire to power the camera, and do something similar with the LCD screen, is there a way to send the camera data to the LCD screen, without using a desktop as an intermediary? In short, I'd like to make a very simple portable digital viewfinder. Given the relative cheapness of webcams (you can buy a half a dozen for less than $10 on google shopping, versus a single CMOS camera module for the same price), I wanted to see how easy such a thing would be to make. As far as I can tell, it'd just be separating the data output from the rest of the wires-- but having never worked with USB before, I'm not sure. Any help?

Question by kdermod   |  last reply


How would I go about interfacing an arduino with an old joystick from a wheelchair?

I have obtained a joystick module from an electric wheelchair.  The board says DYNAMIC CONTROLS (C) Mar 2011 GPC80830 REV E.  On the underside of the board, there seems to be test pads labeled the following: +5, MOSI, SCK, MISO, RST.  Slightly to the right of +5 is a test pad that says 0V.  Below are pads labeled SBL and SBH.  Slightly more to the right of 0V is a pad labeled SB+D.  Finally, furthest to the right are test pads BCN, BC, and BCP.  On the top side of the board there is an ATMEGA8A AU 1114 Micro-controller and an empty 5 pin through hole connector. Also soldered onto the board is a joystick that consists of a coil and 4 smaller coils soldered to the board in a + configuration around it (Some sort of EMF sensors?), a weird 4 pin connector and a 3 pin programming port resembling an XLR connector. Any ideas?

Question by gpotvin   |  last reply


What would be a suitable serial protocol? Answered

I'm currently working on programming a serial interface to put onto I/O devices (number pad, LCD, sensors, secondary microcontroller...) in order to reduce the amount of I/O pins and external connections needed. The only requirements are that it needs to use only two wires (excluding power), and it needs to be bidirectional. Ideally, I'd like to avoid anything that needs too much processing of data before transmission (like adding extra bits to prevent a string of '1's from setting off the error protection). Hopefully, this project will end up as an instructable at some point, so what would be a suitable protocol that would be compatible with common microcontrollers? Thanks in advance.

Question by The Skinnerz   |  last reply


Emotiv Mind Control?

I saw on BBC tech news of a mind control headset made by Emotiv which claims to be a way of controlling on a computer using your mind.The technology has been used for years in helping severely disabled people communicate but this seems to be one of the first times that this technology has gone mainstream.But the question is: Is this just a novelty item?And more importantly: Will I be able to play anything on it other than that Myst-like demo that they supply?And if this product is really going to hail the end of the gamepad then what will YOU use it for?Released next year![Here's the link: http://news.bbc.co.uk/1/hi/technology/7254078.stm]

Topic by bobulator   |  last reply


Need help to hook up a TELEPHONE to computer SPEAKERS ,( or any other kind of speakers) Answered

I am working on an intercom system for the house, we have an extra unused phone line that i've closed the circuit on and energized so that the phones worked when they are plugged into the secondary jack. My plan is to go and get some junk phones at some sort of thrift store or something, and plug them in to work as the intercoms. Unfortunately with the set up that i've got, the speakerphone option doesn't work. So instead of using the speaker phone, I want to hook up the intercom telephones jacked into the secondary line to a seperate speaker to make a finalized intercome assembly. I've got clear sound on all of the phones and I have solved the interminable spontaneous ringing question, and now the only thing that i need to be able to do is to hook up the telephones to a speaker, any kind of speaker, but preferably one of the satellite computer speakers. I would like to know if this is even possible, and if it is it would be great if any answerer includes some suggested materials (if needed) and the procedure suggested for connecting the phone line to the speakers I would try this myself, but I have just spent over eight hours simply going through a trial and error to get the phone line energized in the first place. (by the way instrucables.com was instrumental in that) I simply think that this way, any answer would be more expedient than my own slow methods of clueless experimentation Thanks in advance

Question by noah96   |  last reply


Call to arms: malleable interface creation!

Hello! My name is Luiz Gustavo, and I'm a brazilian design student. First of all, this is my very first post at this space, and I'm very very open to hear whatever critics or opinion of everyone. My hardware & electronics knowledge is very limited, so I'm opening the whole creation of the following project to whoever is interested in co-creating it with me. As part of my ongoing graduation project, I want to create a malleable interface using textiles. The idea is pretty simple. I want to create an open-source hybrid object, a digital raw data generator, consisted of a highly malleable interface that is capable of being folded, twisted and adjusted to the will of its user: an interface as simple and soft as a piece of silk fabric. The data generated must give the current state (deformation and positioning) of the malleable object to a digital output in realtime. The malleable object has to be modular, as well as a little stretchable. I really want to create something that can be remounted, modified, and used in different kind of contexts - not so only as my main purpose at the creation of an experimental art installation I've been working on as my graduation project. At this website I've posted a larger description of my intentions with this interface, as well as a first draft of it: http://theinstrumentproject.tumblr.com/ I'm not quite sure how's that going to be done, what have already been done in this area, what kinds of open hardware I can use, sensors and so on. I'm really starting this research right now, but it would help a lot to at least hear some possibilities from anyone. I'm very very open to hear any kind of contribution! Thanks! [= Best regards, Luiz Gustavo. (lgguts@gmail.com).

Topic by lgguts   |  last reply


PIC16F877A coding to interface with MATLAB(GUI)

Hello, i just to ask anyone who know how to interface PIC16F877A with GUI(graphical user interface) using MATLAB ? Thank you

Topic by esan 


microcontroller 8051 seriel interfacing with pc

I want coding of microcontroller seriel interfacing to pc in assemble and c both

Question by f_siddiqui   |  last reply


Interfacing Playstation controller with Beaglebone anybody?

Hi! Has anybody tried interfacing the Beaglebone with a video game controller like PS or XBox etc? Any help with connections and coding would be greatly appreciated.

Topic by new_bee   |  last reply


How does a 3d TV interface with a gaming console?

I am trying to build a small circuit board with a microcontroller that will be able to trick a PS3 or XBOX into thinking it is connected to a modern 3D Television. Once this works, other hardware/software can handle the video and audio output, but I have no idea where to find information regarding how to make this "secret handshake" between a video device and a gaming console. Does anyone have any ideas, information, or just places I could look to try to find this info? Thank you!

Topic by Runiko   |  last reply


is there a serial interface for commodore 64 cartridges?

I would like to know so that I can finish planning out my next project...

Question by nerd7473   |  last reply


how to interface the remote control and laptop?

I need to do the vision-based robot soccer movement control.i used two remote control car as a robot soccer.i want to control car using pc  via the matlab coding.so how can i done this work?can i interface pc and remote control using arduino and make the car move as i want?please help me...

Question by dekya   |  last reply


i want to know how to build a brain computer interface? Answered

 hello instructables i wanted to know how do you build brain computer interface like the brain gate to control the computer with your brain. but im having trouble fingering out how to receive the signals from the brain so i need material and a circuit does any one no how i could do this. and i want to use the arduino to comunicte between the computer and the circuit.

Question by lj123456   |  last reply


Does anyone know anything about this typewriter interface?

The typewriter is an AEG Olympia ES-95i. It's a big beige electronic machine from maybe the late 70s or early 80s.On the back there is a 20 pin rectangular male connector with 2 rows of 10 pins. If I connect random pins with something metal, it types various characters. I'm wondering if anybody knows what kind of interface this thing might use so I can go about connecting it to my computer.EDIT1:I've found a bit more random information about this type of device which might help:http://www.atarimagazines.com/creative/v9n6/133_Praxis_makes_perfect_Oli.phpApparently Olympia made another typewriter in the same line that was basically the same as a bytewriter model. Irritatingly the article says the bytewrite provides no technical information "other than the pin-out assignments for the connector. "It would appear from the rest of the article that the connector might be some kind of modified centronics interface.I'll try to get a picture up soon.EDIT2:Here's the photo. Whatever it is I hope it turns out to be bidirectional so I can use this as a tty :).

Question by pharoah   |  last reply


make interface for sending text (using vb6) to a running led matrix arduino uno?

I was succed to make my running led matrix using arduino uno, now i get trouble to make interfaceng for it (sending text etc). thanks alot for your replay..

Question by faisolhanif   |  last reply


Interfacing the nxt and rfid via the ardiuno?

I am  having a problem here,I am to connect an rfid card reader to the arduino microcontroller and then the microcontroller to the nxt robot.From the researches that i have made i have learnt that the nxt communicates with the ardiuno microcontroller through I2C while the microcontroller itself reads data fom the rfid antenna using an UART bus.I am wondering if you could help on the code to make the arduino send a message to the nxt.

Question by roagile-2007   |  last reply


Interfacing the arduino with the parallax RFID reader? Answered

I want to interface the parallax RFID reader with the arduino.  I have done some research and found some programs, but I can't quite understand what is going on it the programs.  Here is one that I found on the arduino playground: www.arduino.cc/playground/Learning/PRFID I couldn't paste the code, because when I did it just went on one line, but the program I looked is the first one. The questions I have are: char code[10] ---- what does the 10 mean? Also how does the program read each byte individually, and then combine them into the whole byte string for the rfid tag. I am just learning about using serial with the arduino so not much in the program made sense to me and the programs didn't say how they worked. Thanks in advance!

Question by JaredsProjects   |  last reply


Interfacing With Glass Calculator LCD displays.

I have a bunch of those glass calculator LCD displays laying around at home and I was wondering if anyone had figured out a way to use them as regular LCDs. I have never been able to work with them in the past because they have all used the ribbon cable or foam thing to connect to the PCB. Is there another way that does not involve making a special PCB and enclosure to work with it, like with copper wires and some soldering?

Topic by awilson56   |  last reply


Serial/Console Interface for Video Brochure?

Hello All!  I recently acquired one of those cheap video brochures (the kind that loops a video on full volume until you want to dash it against a wall)... Anyways, I couldn't resist the urge to hack with it, so I pulled the enclosure apart to expose the electronics. Inside I found a magnetic switch, a USB mini connector with all pins wired (two power/two data), a motherboard with three ICs and a scattering of other components, and a rechargeable battery (seems to be LiPo) all wired up to a 5.5" display. I plugged the usb to my computer and it mounted as a drive labeled "MediaPlayer". Inside was the original video file that I replaced with one of my own videos in the same format. It now plays my video with sound. Where I am stumped is with the circuit board. I have not found any markings on the board itself, however it has some pins around the edge to which the switch and speaker were connected to (I'm guessing these may be GPIOs.....). There is also an unpopulated four pin header (to the right of the display connector) that looks like it may possibly be for another USB port. There are also four solderable connections (on the bottom of the left side of the board) that are labeled GND, HRP, HRL, and DET... I wasn't able to find any meaning for those, but is it possible to establish communication through that? Last but not least, the three ICs on the board seem to be a CPU, and two flash chips. The markings on the center one (which I'm assuming is the CPU) are: F1 E200 F8148DA 19H1  The second IC, to the right of the "CPU" is marked: hynix 812A HY5DU121622CTP-D43 KOR N7EAX553Q2 - also engraved with the letters JHY The final IC, left of the "CPU" is marked: hynix KOR HY27UF082G2M TPCB 604A M8SD53321 According to Google, the E200 refers to the all winner E200 SoC that supports UART, SPI and TWI... It also says that it runs OS Melis 2.0... I would like to hack into this system if possible and/or find a way to interface the LCD through SPI for my Pi Zero... Any help is greatly appreciated! Thanks! I included a couple of High Res photos to show the PCB (the display ribbon cable has been removed to show the third IC). 

Question by JoeW79   |  last reply