Audio chip? Answered

I want to make a device to play a sound when a PIR sensor detects motion, but I don't know about the audio chip. I can't seem to find a chip that allows you to program a sound clip to it, then output it when it is given a signal. The closest I found was a cheap sound recorder module from china, but it contains all the external components (mic, batteries, speaker, switches) and so it acts just as a voice recorder. I need an individual chip that will do something similar. I may use the module as a prototype, but I eventually intend to mass produce the circuit, so that is why I am looking for an alternative. It only needs to hold about 5 seconds worth of audio, medium quality.

Asked by andy70707 7 years ago  |  last reply 7 years ago

Compass on a chip

Does anyone know what I need to have a Compass on a chip? The idea is for a horizontal ring of LEDs with the northern LED lit. If the ring turns, the light will chase towards the north most point on the ring. I've found single and dual pole compass chips, but I admit a lot of ignorance about chips in general. Anyone have a shopping list for such a project?

Posted by catalyst 10 years ago  |  last reply 9 years ago

Substitute for a 4017 chip?

I am working on a project that needed 2 4017 chips. I looked all over where i live but couldnt find any. Is there any other chips i could use instead.  I need 12v to power some LED's.  i am hooking into a 555 timer chip.  I am building the 18 led lighthouse circuit described on this site.?

Asked by cspooner 6 years ago  |  last reply 6 years ago

Current in IC chip

Hello, It's a bit stupid to ask (I think), but essential to me. From all schematic I readed over intructables I never saw anything or anybody that cared for that. If a IC have a maximum and minimum current to respect ie: 6mA to 10mA, do we even care? Do I need to limit the current somehow? As I said, every schematic I readed never added any resistor or talked about anything relate to limiting the current on the VCC for the integrated circuit. I'm currently building a device that use one 555 timer IC in astable and a few others IC and they are all connected in parralel to the power suply. Thanks

Posted by sxdemon 8 years ago  |  last reply 2 years ago

chip card

Hi i would like to know if anyone can break the chip card ? ive seen the professor from cambrige university did has anyone get feedbacks?

Posted by sparthe 7 years ago  |  last reply 7 years ago

dear sir i have this chip ,i dont know what is it ?

 this chip is used for device for bleaching teeth  called zoom . after 60 minutes of use it stop working . so the device wont work until i replace the chip again . the chip work just for 60 mins. some people tald that its photoisolater but i didnt  know which type because there are many types of photoisolater.  other said it is power unit .    regard rafail11

Asked by rafail11 9 years ago  |  last reply 9 years ago

what can i do with this?

I have a chip off of a mother board here and i was wondering wht can i use it for. it is an award (company name) 1998 pci/pnp 686 216816591

Posted by fretmelter 11 years ago  |  last reply 7 years ago

Can anyone identify this chip??

I scavenged this chip out of an old weather station. Its an rf transmitter that broadcasts on 433 MHz. I am looking for any type of data sheet to identify the pin out. I have labeled the ones I know and hope to be able to integrate this into an arduino. Thanks you for your help! The chip is labeled with:  TB-THR128-0.1 016-408603-01 Connection points are circled in red. High-Res Images: The chip: The underside: What it was attached to:

Asked by transistorguy 5 years ago  |  last reply 5 years ago

How to dye wood chips ?

I have access to tons of wood chips I will use in the shrub beds.  What can I use to dye the chips with?  Will water colors work? 

Asked by opc167 9 years ago  |  last reply 9 years ago

How to wire this LED Chip?

The + and - markers (top and bottom on the picture) are positioned orthoginal to the terminals (left or right). Or am I suppose to connect th wire to the bit of metal beside the + and - signs. 

Asked by atlantageek 3 years ago  |  last reply 2 years ago

JDM Programmer won't work with 8 pin chips

I bought a JDM programmer from ebay. It has slots for 8 pin, 18 pin and 28 pin chips. It's not a professional model, it's probably home made. When I use Winpic800 in Windows XP SP3 it is able to successfully read and write to both the 18 and 28 pin chips without a problem, but not with 8 pin chips. They're not automatically detected like the other chips nor can they be read of programmed properly. I think it might be due to power , but I'm on a desktop PC, so I don't think it's providing less power than required, plus why would 18 and 28 pin chips work all right. It could be the programmer, but all the connections appear sound, plus the thing came with some smart cards that already contained pre-programmed chips, including two 8 pin chips, so you'd think that it must've worked at some point. As it stands I haven't got a clue what I'm doing wrong and I would really appreciate help with this. Thanks :)

Posted by BTaylor 10 years ago  |  last reply 10 years ago

How can I record over an existing sound chip?

I get several birthday cards or little toys that have sound chips inside with a prerecorded message.  The board looks simple but I can't figure out out to re-record my own sound onto it.  Most of them have a big black plastic dot over (something).  Does this make it impossible to get to the actual chip/program? (Yes, I know I could BUY one -- I want to repurpose the several I have).

Asked by implaxis 5 years ago  |  last reply 5 years ago

Copy a eprom

Hello Is it possible to copy a eprom?

Posted by Popstickal 8 years ago  |  last reply 8 years ago


Hi Sorry for the bad English, hope you understand what I'm after. I've been searching the site for a kit that memorizes. Lets say you got 12 different buttons and 3 tactical buttons, when I push First Tactical for, lets say 3 sec. it goes into "write" mode, and now I make a combination of pushes on the 12 buttons, when done press the tactical again and now the combination is stored. And repeat with the remaining two tactical. Now I got 3 Tactical with different press Combo's.  When I'm in need of combo N#1 I just press the Tactical N#1 and it does the combo I've saved before. And so one if I'm in need of saved Combo's on N#2 and N#3. There should be a LED that tells me when I'm in "write" mode. Hope its not to confusing to understand, Its for my disabled little brother and are gonna be a great help for him and us. I will go in to further details if anybody has an idea on how to realize the setup Tnx in advance Best Regards Henrik Andersen

Posted by Andersen1975 6 years ago  |  last reply 6 years ago

what does this chip do? Answered

I have a atmlh812 smd chip here, but i cant find any datasheets on it. it also says 02B(or 8) 1 (.)Z8F1056C is it made by atmel? can someone help me find a datasheet for it?

Asked by zack247 8 years ago  |  last reply 8 years ago

transponder reader?

I need a small reader built to read the chips we use for cycling.

Asked by katiecannon 7 years ago  |  last reply 7 years ago

Help identify small IC chip

- Found in LED light assembly  - DIP package with 5 gull wing leads in the 1,2,3,4 & 6 positions, as referenced below 6____5____4 |                      | |__________| 1         2         3 - Top says "TF98" - Bottom says "S354" - Small, about 1mm X 2mm

Asked by shuo888 7 years ago  |  last reply 7 years ago

What are some good uses for an extra Computer Mouse? Answered

What are some good uses for an extra Computer Mouse or the chip inside it?

Asked by Atomman 9 years ago  |  last reply 9 years ago

Can someone help figure out this Analog Devices chip? Answered

I recently aquired a handful of chips labeled Analog Devices ADTL 84. It's a 14 pin SMT part. Any ideas about what this is/does? I've done extensive Googling to no avail. I can add pictures later if anybody wants. Thanks in advance!

Asked by Erik J 8 years ago  |  last reply 2 years ago

Dyeing multch

Does anyone know if Charcoal can be used to dye wood chips to make multch?  I'm wanting to see if there is a market to make my own multch and if I can make my own dye.  Anyone can help, please pass your ideas along.  Chris

Posted by opc167 8 years ago  |  last reply 8 years ago

Any soldering tips for soldering a VQFN-16 IC? Answered

Its tiny, ≈ 4mm, has 16 pads Have to try to hand solder it. have some really thin solder i think its .2mm? Or should i go with more of a heat gun method (would have to buy a cheap heatgun, would hairdryer work??) chip might also go by 16-VQFN 16-HVQFN, 16-SQFN, 16-DHVQFN its chip TPS61090- both on digikey and mouser thanks

Asked by astroboy907 8 years ago  |  last reply 8 years ago

Help with old parts identification

I need some help identifying some old parts... Google didn't find anything that I could tell. They are: 1) AMI 8029vi C11262 (Some sort of old dip style IC chip) 2) DIS1283 8004 (This is some type of display but I can't seem to find anything on it. Wanted to see if I could hook it to an Arduino??) Thanks for any help. Mike C.

Posted by mbcharney 2 years ago  |  last reply 2 years ago

i just published a instructable and when will it appear on the instructables pages?

It's April 5 and I was hoping to show my instructable off tomorrow. Will it be officially published by tomorrow afternoon, 130 EST? Thanks.

Asked by LeslieLouie 2 years ago  |  last reply 2 years ago

How a CPU is born

    While doing some research, I saw a link that said "How CPUs Are Made: From Sand to Silicon". Mildly intrigued and not knowing anything about how they are made, I clicked and went to the page and read.     The article briefly runs through a highly abridged series of steps in the making of what eventually turns out to be an Intel i7 processor. It starts off with the raw materials (SiO2, e.g., sand) and how they turn it into monstrous (about 220 pounds!), essentially pure, silicon ingots from which wafers are made. and many steps later the processors are boxed up and ready for store shelves.

Posted by The Ideanator 8 years ago  |  last reply 8 years ago

How Does A Chip Resetter Work

Hi, I would like to reset the chip of a cartridge that I use for printing so that I can refill and continue printing. There a resetters  available and I was wondering how thess devices work. Can anyone explain. In addition, If you know of a simple way to reset, let me know

Posted by anon_private 2 years ago  |  last reply 2 years ago

what does this cd4011be chip do?

On the datasheet it says its a CMOS NAND GATE, what does it do and what do i use it for?  <<Datasheet

Asked by zack247 8 years ago  |  last reply 6 years ago

Who/how Build a EMP to destroye a human Chip implantat?

I Need somebody who can build a EMP or rfid Killer to deactivate a human Chip implantat. I live in Germany. It don t have to be dangerouse for my live if it deactivate my Chip. And it don t have to damage other Things. Only my Personal Radius. I would Pay much for it if someone would safety do this for me. 

Asked by DELETED_flyer9384 6 years ago  |  last reply 2 months ago

Epson Black Cartridge Chip re-setter hacks? Answered


Asked by triumphman 9 years ago  |  last reply 9 years ago

Any Chip re-setter hacks for Epson T007 Black cartridges ?


Asked by triumphman 9 years ago  |  last reply 9 years ago

Using L293D Chip for a Single 1 Amp Motor? Answered

The L293D chip outputs only 600ma of current for each channel. Can I combine its two channels to draw a total current of 1.2 A to run a single DC motor that needs 1A current?

Asked by raftor 3 years ago  |  last reply 3 years ago

help!ic chip?

Alright, so, i have this ic chip and want to do a project with it, but the problem is , i don't know what it does therefore i don't know what i can do with it. the writing on top of the chip says mc34063 and underneath it says 1110 please help me if you know what it does? i will put a picture on this thread. extra info: i salvageed it from a radio i believe

Posted by flubbersaurus 5 years ago  |  last reply 5 years ago

Atmega328pu Chip already bootloaded,can i program it with a usbasp programmer?

Hello everybody,i purchased some atmega328pu chips for a DIY projects (arduino bootloaded) ,just to get little space for my projects,I have already done with the chip part and im stucked on the Usbasp programming,i purchaces a programmer from e bay. I found the pinout for this programmer,and i attacked 4 cables on my atmega328pu chip, TX,RX,VCC,GND,also i installed the drivers from the site,And now im going onto arduino IDE,and i cant find a port to upload my sketches,nothink seems to communicate,and i got stucked here,i need some help Thank you.. (sorry for my bad english) P.S Im a new guy on programming and chip stuff :D

Asked by StefanosK1 3 years ago  |  last reply 3 years ago

Man injects himself with computer virus?

It may seem strange, but a scientist has implanted an ID chip with a computer virus inside it into his body so that whenever he passes an ID scanner, the virus will copy itself onto the scanner and spread throughout the system. It was made to prove a point that if somebody were to create a virus for the ID chipping system, it would be easy and could kill somebody if they had, for example, a pacemaker. A scary thought!

Posted by The Jamalam 8 years ago  |  last reply 8 years ago

Impossible to identify microcontroller? Answered

So I took apart a remote control for a cheap helicopter. There is a 14 pin microcontroller on board. Unfortunately it looks like any other 14 pin IC out there and there are no markings on it. Is there anyway to identify possibilities. For example if I mapped where each pin goes on the PCB. Luke pin one goes to the LED's, pin 2 goes to the joystick, etc. Is there any way to "read" the chip to figure out what it might be?

Asked by MDheliMech 5 years ago  |  last reply 5 years ago

Solid State Sensors? (Very Edited)

What properties of an environment can be measured with solid state sensors? Specifically, I am thinking of a project requiring a suite of sensors-on-chips that can measure their immediate (dry) environment and pass the data to a control unit.So far, I know of temperature, magnetism, radiation, acceleration and light (a camera chip).Are there any other (reasonably priced) solid state sensors, and where could I find them (either new, or reclaimed from something else)Edited:OK, so I thought I could be vague about my questions and then surprise everybody with a working satellite.Turns out I'm not so clever as I thought.I'm trying to recreate Sputnik on a tiny budget. Something that could be made by Joe Public, without having to rely on grants or Lottery funding.Sputnik weighed nearly as much as I do, but all it did was measure temperature and pressure, then send beeps that changed if the temperature or pressure went outside a certain range. I know it has been outdone by students with CubeSats, but they still cost tens of thousands of dollars.I thought that it should be possible to recreate (and out-do) Sputnik's capabilities on a single board, a simple programmable control chip taking in the data from a set of sensor-chips encoding it somehow, then passing it to a transmitter to be beamed to Earth.I thought - still thinking micro-budget - that the whole thing could be cased in a short piece of sealed PVC tubing, since PVC is radio-transparent.In my head, in fact, the satellite looks like a relay baton, but shorter.Am I being stupidly optimistic?

Posted by Kiteman 10 years ago  |  last reply 10 years ago

High Power LEDs

I have 3 10 watt LED emitters to sell (2.9 cm x 2.0 cm x 0.3 cm) Colour temperature is about 6000K I'll ship anywhere in Australia I don't have a good quality camera right now Send me a private message and I'll see what I can do

Posted by .Unknown. 6 years ago

Where can MAX6675 chips be found for salvage?

Asked by Ninjabdou 4 years ago  |  last reply 4 years ago

Heatsinks and Peltier Chips-WWWWWUUUUTTT?

I need a peltier chip for a project and I'm a little confused how they work. I'm pretty sure I got it right, but not positive. Can someone tell me if this is right? The hot side of a peltier chip is attached to a heatsink with "grease" (can someone tell me where to get that?) then a fan blows the hot air away from the peltier chip from the side and another fan blows across the side of the peltier chip to its intended destination for cooling. Is this right?

Asked by Adum24 8 years ago  |  last reply 8 years ago

help identify numbers on this chip? Answered

Okay, so im looking to replace some IC's in a laptop. simple enough, but theres one thing. the part numbers differ by only one digit, and searching for either returns identical results. its a DDR ram chip, made by samsung, part "K4D551638F-TC40". the number that changes on two of the four chips is on the first line, with the word "Samsung". one two of the chips its a "510", while on the other two its a "540". if i google the chip and go to images, most of the results show one with a 510 on it. i know it isnt the clock speed, because according to the datasheet that is shown by the "TC40", so does anyone have a clue what those 3 digits on that first line mean? if anything?

Asked by zack247 6 years ago  |  last reply 6 years ago

RGB LED controller chip? Answered

Does there exist an IC, which can flash RGB LEDs? I really like auto-flash LEDs, but I would like to have several LEDs flash (and change colour) in sync. But auto-flash LEDs, have different flash rates. Is there an IC, which can flash several manual control 4-pin RGB LEDs???

Asked by R0B0_Ninja 9 years ago  |  last reply 9 years ago

Looking for help to change songs in Fisher Price Music box Record Player 2010

Hi there. I'm interested in seeing if anyone knows if it's possible and considerably easy to change the songs that the Fisher Price Music Box Record Player plays. This is NOT the original version with an actual music box in it. This is 2010 version which has some sort of sound chip in it. We have opened it up and it seems like you should be able to just replace the chip that has the music on it but we have no idea how to do that. Just curious if anyone has any ideas! Any help would be greatly appreciated! Thanks in advance!

Posted by tidalfingers 6 years ago


The LT3751 can work with the47N60F mosfet?, Can you recommend me a flyback transformer (in:12v  out:450v)?

Asked by Kurt Gerhard 7 years ago

Snap Circuits IC's, can I get the same functions in a small IC?

Hi. My kid (and I) have recently started messing around with Snap Circuits. We have a specific project in mind and want to design the circuit using Snap Circuits, then shrink it to fit in an Altoids box. Question: Is there a direct facsimile available of the integrated chips in the Snap Circuits box? Meaning, the same input voltage and current, where I can assemble all the matching components to my Snap Circuits circuit (switches, resistors, capacitors), and then just switch in the new (small) IC for where the Snap Circuits IC goes. This would also help with troubleshooting. Any thoughts? Here is the Elenco supplied schematic description of the Snap Circuits' IC:  

Posted by BBBMMM111 4 years ago

K155ID1 chip showing low voltage between decimal pins and power supply. Is the chip bad? Answered

Hello, I turn to those who know probably a heck of a lot more about this than I do.  I've been trying to build myself a nixie tube clock, and everything has been going fairly well. I recently got the driver chips in the mail which convert BCD -> Decimal in order to hook the nixies up to a digital logic system like an arduino. I'm using a 12 V -> 180 V switching power supply for lighting the nixie tube. It is connected to ground on a computer power supply that I'm using to power the entire project. The 5 V rail on the computer power supply is connected to the Vcc pin of the K155ID1 chip as shown in the picture. I've connected the ground pin on the K155ID1 to the common ground of the computer power supply. I have nothing connected to the A, B, C, or D pins on the driver chip, which from what I understand should be the same as inputting the BCD number 0000 or just 0 in decimal. If I'm inputting a 0 as my number, the chip should output a 0 in decimal. From every single datasheet I've seen talking about this chip, that should mean that pin "0" (as shown in the picture) should become effectively grounded, and assuming that the "0" pin is connected to the 0 digit on the nixie tube, that should connect the nixie tube to ground, which should allow 180 volts to flow through the nixie tube, causing it to light up. Unfortunately, this is not what happens. In fact, nothing happens. Nothing happens no matter what pin on the driver the nixie tube is connected to. The only way I can get the nixie tube to light is if I connect it directly to ground, in which case, it lights up very nicely, but obviously that doesn't help with controlling it in any way. I took out my multimeter and measured the voltage between the 180 V supply line of the nixie tube and the pins of the driver chip, and every single pin (except A, B, C, and D) show a voltage of about 80 volts, which is not enough to light a nixie.  My question is, is there something I'm missing? I would think that the chip was bad or that I popped it or something. Heck, you could fill an electronics graveyard with all the chips I've popped over the years. But I've rebuilt this setup 4 times now, and I've attempted this following multiple schematics, and even switching the chip out for a brand new one 5 times. Each and every time the result is exactly the same. Either I'm overlooking something huge, or I just happened to buy 10 dead nixie driver chips. Thanks, in advance for any input!

Asked by tylervitale 2 years ago  |  last reply 2 years ago

Getting started with PIC's, what do I get?

Hi, I have been fiddling with Arduinos for quite a while now, I would like to get some PICs, because they are WAY cheaper, and you have to do more to get them to work, not just plug 'n play. I am going to get 2 free sample 16f648a's from MicroChip for an 8x8 matrix game like this one:  any suggestions for other PICs to get from MicroChip? Also, what is a good cheap programmer, or one I could build? Thanks a lot, Geek P.S. I am pretty good at soldering and electronics, so if anyone has ideas of other fun projects that would be cool.

Posted by circuitbreaker 8 years ago  |  last reply 8 years ago

Can anyone help me design and program an LED selector circuit?

Schematic I am currently trying to design a multi board circuit (as detailed in the attached diagram). I want one control board with a PIC program which governs the selection of LED's across the three different boards.  Q1 needs to flash six times  .25s on .25s off and then stay on for 10 seconds Q2 needs to turn on and stay on for 15 seconds Q3 has two functions either:                                                     red LED on for 15 seconds OR                                                     red LED on for 1 second then green LED on for 15 seconds Q4 needs to turn on and stay on for 15 seconds I only want one LED option to be on at anyone time across the three slave boards. If anyone can give me any pointers for starting this project I would be really appreciative as this is quite an urgent task. Many Thanks

Asked by cgalmrott 8 years ago  |  last reply 8 years ago

How can I program into an IC chip?

How can I program into an IC chip?(I want to program the steps and time delay with my own device)

Asked by theinlinaung2010 8 years ago  |  last reply 11 months ago

What would be a good portable amp chip? Answered

I'm making a simple portable amp, and i'm searching for a good chip. I've already tried LM386 didn't like the sound and power output. TA7368P good sound, but the low frequencies and the power consumption weren't great. (also 741, TL082 but they aren't ideal for amps.) Now i'm with TDA1015 so far the sound is great, power output also great, the consumption is sort of good. Can someone tell me a good mono (or stereo) amp chip that has good power output (>2W) and it has low power consumption. I know it sounds sort of stupid but iv'e seen some great sounding amps with low power consumption and high power output in an old BoomBox. But it was covered by a big heatsink and when i removed it the IC was blank. So if anyone can help thank you in advance.

Asked by T0C 7 years ago  |  last reply 7 years ago