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?
Topic by sparthe | last reply
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.
Question by andy70707 | last reply
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?
Topic by catalyst | last reply
I know think I am considered to be crazey, but I know what was done to me....I need something that will detect a chip in my body, and something to block it I know that that there are detectors...but I dont know which one is good and I dont have alot of money to spend. I was told to block it with metal..or copper...I used copper roofing sheidling( I dont think that worked...there are companies selling pants for rfid but you dont know if your getting the right info....or is there a fraud
Question by thefrightendone | last reply
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
Topic by flubbersaurus | last reply
Hi, I'm asking about how to drill on copper or silver chips? I mean if there is material or chemicl help to drill on copper or silver chips to write on it or to draw. in other words how to draw or write on copper or silver chips, pls help thanks
Question by canadian nh | last reply
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.?
Question by cspooner | last reply
Not sure if in correct forum but here goes... I'm wondering if someone could design a simple and inexpensive way to use a chip to trip a relay with proximity. An idea I have for vehicle anti theft. possibly to bypass need for ignition barrel etc. but to allow the car not to be started without the presence of a close by chip. any ideas?
Topic by astrosurfer | last reply
Hello Everyone: This is my first post in this forum. I have a website on preparedness and survival. I have posted also my first instructable as well basted on this topic. So my challenge to everyone is to use only chip bags and duct tape to come up with something that could save your life. Other than the fact that potatoe chips are part of a well balanced diet. The bags can be used to make all sorts of things. Have fun. Like this one below. Robert (Survival Central editor)
Topic by SurvivalCentral | last reply
I have a bunch of smoke detector circuit boards all of which have IC chips. All of them have slightly to widely different numbers, some Motorola, a philips, etc. The main question I have is what type of chips are these as far as function goes? I tried looking these up but so far nothing absolute. Some numbers I remember are 8506, 8605, 8502; other numbers are way different and I don't remember what they are.
Topic by eramsell | last reply
I have a four legged chip and i dont know what it is. it is marked with a few different markings which are A83401 and 21508. on the opposite side its marking is 0549. the middle two legs are grounded with power in another and output from the fourth. it is in a joystick for a machine. can any one help?
Topic by wexd | last reply
I've always wondered how these doorbells and other such devices play a particular recorded jingle or a song.I think its possible to make circuits which can play custom tunes set by us(maybe using a PC).Could you please give me a brief idea on how this is done?
Question by Adarsh_tronix | last reply
Could you modify the reader in a chip reading cat flap to log the details of the chips t hat pass through it rather than only let recognized chips open the flap? Chip reading cat flaps exist data logging is possible this I know, how to tie the two together is beyond me. Give me detailed instructions I could do it, but I'm more at home with working out how to wind the detector coil than what to do with it. The reason is this My sister has a problem, she is in danger of becoming a cat lady, or at least over run with strays or other peoples cats. Her current plan other than catching the visitors that are clearly street cats and delivering them to the local shelter, is setting a camera trap aimed at her cat flap and posting the visitor photos on the local area FB page with is this your lost cat under it. couple of the poor conditioned strays she has managed to get to the shelter have been chipped it is reasonable to assume that some of the others must be to, and they would be easier to catch possibly if their owners were trying to do it. Even a simpler system that just connected chipped cat with photo, and there by identified which cats aren't chipped so presumably are true strays not just nominally owned would b of help those could then be targeted for capture and re homing first.
Topic by Stan1y | last reply
I have a strong will to learn micro controllers, but i am confused with certain aspects . Since, i am new at these, so please suggest me. Which one should i chose arduino or avr chips. Please, also suggest , which programming language would be easy , arduino based or .c based (avr) language. I am also not sure if i go for arduino, would i be able to upload program to avr chips using arduino ide ( if i don't learn .c). Need Help!
Question by ShuvamP | last reply
A few days ago I had some Green Bean Chips from Wholefoods, and I would like to know how to recreate them. I tried to dehydrate and fry t\ them but they didn't turn out the way I wanted them too. Now I was wondering if anybody would have any other ideas THanks
Topic by milonus | last reply
I've seen some projects that use accelerometer chips with arduinos to get readings (e.g. in MATLAB). I'm looking to do this but I'm going to be measuring very low amplitude, low frequency vibrations so, I imagine, the types of acceleromters I've seen used (e.g. the MMA7341L) won't be sensitive enough. Does anyone have a suggestion for which accelerometer would be appropriate (I know that MEMS are a popular brand - there's a list here: http://www.analog.com/en/mems-sensors/mems-accelerometers/products/index.html) Many thanks for your time! Oli
Topic by ocheadle | last reply
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
Topic by sxdemon | last reply
I have had some problems with illegal rfid chipping by the avalon station los angeles county sheriffs. i have had to throw away alot of my belongings not knowing which item or items were chipped. this rfid frequency number was given to a motorcycle gang on the mainland ( i live on santa catalina island off the coast of southern california).........and this gang attacked and tried to murder me across state lines when i went on a trip to northern california/oregon.............these guys stalked and attempted to kill me at least 15-20 times during an eight month terrifying ordeal! there are some "bad cops" on the force that did not want me to return to the island; as i was going to be a major figure in some lawsuits that are being prepared at this moment. gang officer david v mertens played hardball with a very innocent little resort town of avalon (google his name). he tried to tell the world that on the "misty" island of catalina that there were gangs here on the island.....which is hogwash as everybody in this little community knows everybody else; sometimes too much.......it is like having 3000 brothers and sisters! so after his little pr stunt........hey; there is a need for him on the island. he got kicked off of the island as he does not belong in a resort town. i am a person who has lived in the wilderness for the better part of 30 years; and am very hard to locate, capture or worse...........but they tried twice on the island using air assets (one a grey unmarked military helicopter and two days later a little blue and white private airplane)....but to no avail. they came "straight to me" in the canyons and forests of the island and in the forests of oregon and then back again in the forests of lake tahoe...........no one has ever found me like that........especially a bunch of city boys. when they don't capture me we all walk around town as if nothing happened! my questions are how to detect these chips and destroy them on my backpack, other belongings and even chips that may very well have been inserted into some food i found on the backside of the island just after a sheriffs helicopter had taken off from the remote area. i thought the chopper was putting food in places just in case some of the survivors of a coastguard airplane/helicopter crash found their way to shore; but it might of been meant for me. since returning to the island i saw someone chip my day pack that i left unattended during a mountain run............so as an experiment i went out three days ago and hid the pack in the local hills, when i returned home i realized that i had lost my knife out of it's holster. i go back 30 minutes later to look...........and guess what?........the pack was already gone! then some sort of personnel folks came back for me; that i saw way down below me in that spot......looking directly at me! i always get hunches to get up and go before anything major is about to happen; which is how i got away from the motorcycle gang and the sheriffs that backed the gang cop. any suggestions you might give me in regards to these issues would be greatly appreciated. thank you for your time. pack below
Topic by richard e dial | last reply
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
Question by rafail11 | last reply
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 :)
Topic by BTaylor | last reply
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).
Question by implaxis | last reply
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
Topic by Andersen1975 | last reply
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: http://i.imgur.com/zG7z6eq.jpg The underside: http://i.imgur.com/ojipNPo.jpg What it was attached to: http://i.imgur.com/6SpCEXl.jpg
Question by transistorguy | last reply
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?
Question by Adum24 | last reply
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?
Question by zack247 | last reply
Hey eveyone, i want help figuring out if can use either of these 2 chips for programming. the datasheets are below: atmel at29c512-90jc \/ http://www.atmel.com/dyn/resources/prod_documents/doc0456.pdf or mosel vitelic v29c51002t \/ http://www.datasheetcatalog.org/datasheet/mosel/V29C51002T.pdf' any help is appreciated
Question by zack247 | last reply
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???
Question by R0B0_Ninja | last reply
I have a small project I'm working on that uses rechargeable batteries. However I want the device to stop drawing from the batteries whenever an external power source is plugged in. (The external power source would then power the internal battery charger and the main device.) Is there a chip or circuit that could be used for this? My only alternative is to modify the power supply port to include a micro spdt that will switch when plugged in. But I'd rather like to avoid that.
Topic by stalledaction | last reply
I need your help people of Insturctables. I am working on an project, and I need to make a circuit whit a 555 timer/chip so that it makes,for example, an LED light up in every 2 second. I mean when it turns on, it needs to be on for 2seconds than off for 2 second...loop. ON(2 seconds)___OFF(2 seconds)___ON(2 seconds)___OFF(2 seconds)___LOOP I need the output to be 12V. Actually I need it for a fan to turn on and off(the fan runs on 12 volts) Can you help me make a circuit for this, what value of the resistors and capacitors do I need... It would be grate if some one could make a schematic of the circuit in Eagle, or so... If I make an Instructables about my project I will surely mention who helped me realize my idea! Thank you all! -Stanislav
Topic by comodore | last reply
Is there a chip like the LM3914 that takes an analogue voltage input and turns it into a digital signal? (preferably BCD, but decimal is fine too), but without the inverting output, so I can use it with other CMOS chips? I basically just want a chip that takes an analogue signal, and based on a threshold, divides it up into a decimal (or binary) signal. Specifically, I want to use it with a thermistor and a 7-segment display to make a digital thermometer.
Question by andy70707 | last reply
I've just started playing with Arduino boards and programming and I am curious about firmware or downloading a program to a chip upon completion so the project remains so I can keep it intact after I remove the Arduino interface. Can you buy inexpensive chips and download a program to the chip with all the instructions on it so I don't have to leave the Arduino board connected to it. I've heard there are inexpensive one time chips that you can download too and that's pretty much it. Once the program is in, its in and you can't reprogram it again so my questions are this 1) can this be done? 2) does anyone have an Instructable for a project that uses this, and finally, where can I get such programmable chips? Any assistance or advise is most appreciated.
Question by happywatt | last reply
I salvaged a Sharp LZ23H3V CCD chip from an rather old Kodak digital camera. I have looked at the datasheet for the part, and I am completely clueless on how to drive this thing so it would output an NTSC signal. Anyone got any suggestions on a driver circut?
Topic by abadon | last reply
I just bought a HEF4008BP 4 bit binary adder ic. I connected pin 16 to V+ and pin 8 and 9(Carry in pin ) to ground and then set up a 8 way DIL switch with 10k and 1k pull down resistors to gnd and the switch to the inputs of the adder.Then i connected the outputs of the adder to the positive of a 3mm led each separately .The dil switches are all of but still all the led's light up once i connect the 9v battery . The chip can run off 5v-15v . Also there is no sign, name or logo of a manufacturer on the ic .Is this a fake ic or might i have possibly blown it or have i done something wrong .Please help me.
Question by Strontium | last reply
Procter & Gamble will be forced to pay tens of millions of pounds in VAT after losing a legal battle with the (UK) taxman over its Pringles snack.The Court of Appeal ruled in favour of the Inland Revenue, which maintained that Pringles constitute a potato snack and are, therefore, liable for VAT (tax). The Appeal Court judges disagreed with a previous ruling that the low potato content (42%) exempted Pringles from VAT.See here for BBC article
Topic by lemonie | last reply
SO i made a circuit which is a binary adder(using the 4008b) that adds numbers in binary and then passes on the result to a 4511 IC(its a BCD to 7 segment decoder),so basically it adds numbers in binary and displays them in decimal .It seemed to work fine for a while but then suddenly when i tried adding 0011 +0001(3+1) in binary ,it still displayed 0 and then i tried tapping the battery for a second or two and then suddenly the seven segment display shows 4 .The circuitry is all fine and right .but do i have to connect latch enable(pin 5) pin of the Ic?.Both the IC's run on a 9v battery and for the 4511 decoder IC i used 33k pull down resistor .Is my pull down resistor value for the 4511 IC too high ?The binary adder part seems to work very well,its the bcd to 7 segment decoder IC part that I'm very much concerned about.Is there too less power for both the chips to run on?I've not got a single idea at all .so, >PLS help me if you can.
Question by Strontium | last reply
Question by brunoaco | last reply