What is the purpose of using divide by 8 in avr programming? Without knowing more about this is seems like the long way around.
Question by WWC | last reply
I have a permanent magnet motor which i found in my store (old gemini gate motor) i have built a small wind turbine that works well, so here is my question, i need to make this turbine generate enough power, to power my hot water electric geyser. i hope there is somebody that can help me i am really novice to this, i have read about inverters etc (even bought a book - electronics for dummies - great book i might add) to help me but i am not coming right ! i really hope someone can help me
Question by nicobotha12345 | last reply
8 bit processor main component for processor ALU 8 bit decoder multiplexer Q1 I have option for decoder decoder 2 to 4 decoder 3 to 8 which decoder circuit I need for 8 bit processor Q2 I have option for multiplexer multiplexer 2 to 1 multiplexer 4 to 1 multiplexer 8 to 1 which multiplexer circuit I need for 8 bit processor
Question by vead | last reply
Hi all, I got two 3-way-speakers (8ohm) from my uncle, but I don't have an amplifier. I wanted to use these speakers as audio-monitors for my pc. Is it possible to make an (easy) amplifier-circuit for this use? And do I need one or two circuits (1 circuit-1 speaker / 1 circuit-2 speakers)? Thanks for helping me out! Arnout PS: Sorry if my english isn't that good - I'm from Belgium ;)
Topic by arnoutdejans | last reply
? Looking to make a simple LED scoreboard for scoring "Bags" games (Cornhole). All i Need is 2 rows of 21 LEDS on each side of a vertical board with the bottom denoting scoring "1" and the top as "21". And I'd like to have some sort of momentary button to press that would move the circuit from 1 to 21 one increment at a time (moving up, turning on the next as the last one turns off). I could just put switches on each led but I am trying to avoid that. Any advice would be helpful. Thanks PS , if all the lights stay on until i get to the top and then able to reset it, that would be fine too, Just trying to eleviate the use of multiple toggle switches.
Question by djtonyc77 | last reply
Hello there Everyone! I am trying to Do a project where I can use Small LCD screens (perferably a CVS disposable camera 1.4" TFT screen) The problem is I'm not quite sure how to go about hooking them up to a RCA, or S-video input. My whole project hinges upon me getting a good LCD or OLED monitor as they need to be fairly high quality. I cannot seem to find many small LCD or OLED suppliers out there so I am hoping this can be done with the disposible. I would also like to ask if anyone does have information on where to buy small, detailed LCDs that can receive RCA. I considered using a cell phone screen but it seems that you need to break down an analog RCA input and digitize it to be viewed on the screen, something that needs a beefy micro controller and programing knowhow, of which i have neither. Please lend a hand, and you may see my first instructable, of something rather awesome.
Topic by TheBestJohn | last reply
I want to try out windows 8 but I don't have enough disk-space on my laptop to install it. So I want to install it on an external harddisk(USB) but those mean people from microsoft won't allow me to: when I try to install windows 8 in windows from "sources/install.exe" I get an notification that I can't install windows 8 on a usb device. Does anyone know whether this notification is bypassable or not? Thanks in advance
Question by selujtje | last reply
I dont have any audio shop near my place ... but i have a lot of headphones and mics ... i try to connect the jack of a mic and the jack of a headphone but it didnt work ... :P ...
Question by rockwave | last reply
Well here is my problem, I have seen the many awesome things on instructables that you use an app preloaded on an SD card to control an arduino through a Bluetooth module. But I might get the new windows 8 phones and I don't see any windows 8 phone projects. I would assume that I could easily connect to the Bluetooth module and but what about the app.? Does anyone know where I could possibly find a tutorial? Please help!
Topic by broskiz
Hi, I've been trying to add a LED light for my glove box, since it didn't come with any. I bought one radio shack led with built-in 1/8w 680ohm resistors to see how it was made. I read the 1/8w resistor wouldn't work and it would burn up? Using something like 1/2w would be better. I tested it with a 9v battery and I didn't feel it getting hotter. Maybe just warm? I got some LEDs off ebay many years ago and I have no idea what their specs are. They are 3mm led bulbs. I decided to make my own by using 5 1/8w 150ohms resistors. 150 ohms are the only resistors I have on hand. With the combined resistance of 750 ohms, how much voltage is going to the LED? Will I be fine with just using 4 150 ohms resistors? Will is be dangerous to use the 1/8w resistors? I don't want a fire. Will having more resistors also help spread out the heat among the resistors? I drive 4 hours a day, so the light will only be on for that duration. Thanks
Question by RoboRay | last reply
Ok, so i took apart a old lcd monitor and found a w78e65p-40 microcontroler unit in it. i have no idea how to use it and whit not, and it just slides out a holder, so it can be put back in. again no idea how to use it, but this site may be of help to describe it http://www.8052.com/codelib/w78e65.pdf
Topic by killmore231
Okay, simply what I want to make is a small device using a microcontroller (an arduino or maybe something more basic) and all I need it to do is play an 8-bit track when a button is pressed. unfortunately I have little experience in the area of programming and microcontrollers although I have basic skills like soldering. any help is greatly appreciated , Thankyou!
Question by zeon | last reply
Sorry for the damn caps-lock! My sister bought a laptop- after many years of my urgings and advise...(Compaq CQ58). Nice machine, but the damn thing is loaded with windows 8. (no, not -pro!) Normally, I would format the drive, en subsequently install pirated Windows 7! But in this environment, nothing works, and nothing is what it seems! How to format the W8 Drive? I want to get rid of the W8 installation, wipe the drive clean, and install W7! Windows 8 has, for me, in 2 occasions, proven to be a burden, incompatible with performing any real work,. Many pirated programs, always performing fine, suddenly present huge problems-like deadlines of 30 days appearing: after years of use!!! It has a mind of its own: screens popping up (unable to click it away!). I never needed 'apps' and still have no idea what they are and why I would need them! After this very negative experience, there is only 1 desire: Get rid of windows 8!!! How???
Question by BobS | last reply
Hello members I want to make port for microcontroller in verilog code I want to write verilog code for 8 bit port module port (data_in,data_out ) input[7:0] data_in; output[7:0]data_out; wire [7:0]data_out; endmodule I think its not enough tell me what I do to make port in verilog I did google but I did not find success
Question by vead
Unfortanately, a while ago, i made a big mistake, geting vista. so before i make another one, i want some advice. internet explorer 7, 8, or should i just stick with fire fox. unfortanatley, firefoxe lets through tons of pop ups. and then of course, due to the fact of me having vista... welll... "INTERNET EXPLORER IS NOT RESPONGING, PLEASE WAIT WHILE WE SEARCH FOR A SOLUTION"
Topic by E-R-IC | last reply
Hey Guys - My daughter has a small Little Tikes car which I'm adding 8 LEDs (3 per headlight & 1 per taillight) to. Each LED is a 2v 20ma. I've already started, but hit a snag. For testing the LEDs, I used a 9v battery with a 330ohm resistor on positive. This lit individual LEDs as well as 3 LEDs in parallel. My plan was to wire them all in sequentially then figure out what was needed resistor wise when done - bad decision. I have almost everything installed except power and now stuck as to what do do. Having 8 LEDs which are 2V / 20ma, exceeds the voltage a 9V battery can produce. Afraid to try connecting the 8 directly to 9V as don't want to risk burning them out. Just wanted to post to see what my best option would be - especially one where I wouldn't have to rewire everything again in parallel if at all possible. Thanks!
Topic by bzowk | last reply
Hello experts I need some help I want to make 8 bit instruction using folloing component so I made one simple example 8 bit instruction set 4 bit opcode + 2 bit source register +2 bit destination register+ 4 bit data accumulator A memory register R1 memory register R2 memory register R3 opcode source destination data 0010 00 00 xx R1 01 A 01 xx R2 10 XX xx R3 00 XX xx load data directly into R1 mov R1#data opcode source destination data 0010 R1 01 00 data load data directly into R2 mov R2#data opcode source destination data 0010 R2 10 00 data load data directly into R3 mov R3#data opcode source destination data 0010 R3 11 00 data load data directly into A mov A#data opcode source destination data 0010 00 A 01 data mov the content of R1 into Accumulator mov A, R1 opcode source destination data 0010 R1 01 01 disable mov the content of R2 into Accumulator mov A, R2 opcode source destination data 0010 R2 10 01 disable mov the content of R3 into Accumulator mov A, R3 opcode source destination data 0010 R3 11 01 disable don't use any register disable opcode source destination data 0010 00 00 xx don't use register
Question by vead | last reply
Does anybody know of a schematic to program an 8 pin picmicro controller such as: 12F675 12F508 Just those specifically because they're 8 pin and I have them. Correct me if I'm wrong, but one of those 2 has 8 I/O ports, which leads to a lot of possiblities for a small area. Also this will be my first real pic project.
Topic by guyfrom7up | last reply
I have a pile of used university 486 computers laying around(from Laurence Tech, actually), I want to install DSL n them and work up from there, but I can't see any drives, CD or otherwise, at all which means I can't install anything, there is no my computer icon or anyting that resembles it, ctrl+alt+del doesn't work either.
Question by The Ideanator | last reply
For a TTL project I'm working on, I wanted to have 7 segment display output for the 8 bit numbers it works with. After searching on google and not finding very well documented circuits, I decided to ask here. Because the input is 8 bit, it should output 3 numbers. I only need the circuit to do the BCD because I can use 7 segment display drivers from there. (Like a 7446 IC) Thank you.
Question by Super_Nerd | last reply
I have an application where I need to transmit 8 buttons of information to the computer.. I figure the best way to do it would be to use an 8-button wireless joystick kit (or similar).. The software it will interface with will be an educational game on a PC, so a joystick interface is perfect and I shouldn't have to code anything specific.. Are there ready-made kits to do this? I am fairly tech savvy.. Thinking down the road, bluetooth might be a plus since I could compile the program for phones and use the wireless controller with phones as well..
Topic by 3DPiper
I am currently working on a project that involves 6-8 servos, that all need to be powered at the same time. What would i use for this? The power supply on the "robot" of sorts will be a 11.1v Li-Po battery (Will update with mAh/any other info needed on the battery in a few days, i do not currently have it on me). Is there any BEC/UBEC capable of doing such a task? Could i use a combination of more than one (Three UBECS off of the same battery, all in parallel)? The servos that i am using are TowerPro MG995 Digi Speed servos. On a slightly different topic, are there any BECS/UBECS that can monitor the battery's voltage, and shut off when it drops below a certain voltage? Links would be great Thanks!
Question by RocketPenguin | last reply
I've been fartin around with electric and acoustic guitars for about the past 5 years. Only now am i getting decent (by no means good, but better, i guess...). I've been wanting to make a small amp with a small speaker for some time now.I saw this circuit the other day. Its VERY simple.http://www.aaroncake.net/circuits/amp.aspIt says to reverse the values of R1 and R3 for use as a guitar amp. there's some other stuff too. I was going to see if i could pick the stuff up at radioshack tomorrow, and maybe make it an after-work project for the week. Maybe cut up some wood and make a nice box for it. 1)Do you think these parts would be available at radioshack? and what do i need to look for if i cant find the exact IC? 2)Any special soldering tips? 3)What kind of pot do i need to add, and where, for a volume knob?4)Is there any extra things you think that needs to be added?5)Are those triangle things grounds? as in 12v negative? And what about the other wire from the guitar? 6)Also, what ohmage speaker do i need to use? What am i looking for in a speaker?7)Will 8 AA batteries do the job?8)Do i need to add like a fuse or something somewhere? Going straight into the IC...i dont know. If anyone knows of simpler or better designs, let me know. I seem to really [insert proper four-letter word here] up electronic things. I think thats all the questions i have here. To respond you can just go like..1)i think that....like that. Hopefully that will make it easier to answer all my ignorant questions.Thank you!Jason(sorry if i seem like a a$$ here. Its 1:35am, I've been looking this stuff up for two hours, and i dont feel like i got any further....)And since i dont have a suitable picture, have yourself a look at my LEGO steam engine: (after the third try of trying to post the video with unsuccessful results, i realized that i was posting the embed code int eh URL place...need....sleep....)
Topic by John Smith | last reply
How tough would it be to do that? Based on the research I've done so far, That could be one hell of a challenge for a noob like me. Knowing that, is there a part (preferably 8-bit and has lots of inputs/outputs) that would do the same thing for me? This will be used in a similar fashion as a CCD sensor setup, but light isn't the medium I want to measure
Question by The Ideanator | last reply
I want to get my mom a flash drive that is at least 4gb and Very least 2gb and want one that is cool looking or unique. Thanks! If i can't find one i like, I'll make one myself. The reason I want one online is because I can ship it straight to her.
Question by Yerboogieman | last reply
Hi, I've recently installed Windows 8 on my laptop after windows 7 died on me and my DVD drive failed. I had to put my hdd in another laptop to install then transfer it back into my laptop, the problem I'm having though is that Windows 8 has installed some random drivers for my video card (ATI mobility radeon 4200 hd) whereas I need the Windows 7 driver which I cannot access. Has anybody found a DIRECT DOWNLOAD to the driver? All I can find is the catalyst control centre and such which completely ignores the card and allows Windows to install it's own stuff :LAny help would be appreciated. Thanks in advance, Will
Question by freerunnin1 | last reply
To clarify my question better... How do I take a 1mp( mega pixel) and make it record from an A/V source? Or, what is a created, modded, hacked, or bought product that can be used for recording A/v portably? I am trying to take an older high-end video camera that recorded on hi-8 and record from the on board A/V output, then plugging that output to a device (that meets the criteria above) into that. My plan is to use a 1mp digital video camera, and then mod that to have an input.
Question by ry25920 | last reply
I am trying to build/sell mod kits for 360 controllers (to make them rapidfire of course) and i need to know what i need to buy. I have 2 serial ports on my computer, so it doesn't need to be usb. I just want to find the cheapest way to take codes off of and write codes to microchips. I saw this but i was told that i would need to get other items to add to that to be able to program a chip. Also, is this chip similar enough to the ones that they use in the kits/ mods they sell on ebay? Would this chip work? Any answers would help very much.
Question by tubbychick3n | last reply
I have a receiver that reads at 120W is that enough to drive 2 speakers a tweeter and an external subwoofer the receiver says on the back 120V 120W 60Hz 170VA so im guessing it runs at 120W per channnel at 8 ohms so would i risk blowing the amp or speakers if i plug an external subwoofer to the speakers and tweeters the recever does not have a sdubwoofer channel so would i damage anything at all with it in the channel as well by external subwoofer i mean it has its own power source its own crossover its own amp it has an rca in put or you can use the terminal plate it has as well this is the JVC RX 212
Question by fastcar123 | last reply
A friend gave me a Melles Griot 05-LLR-811-249 he had lying around his house. It's a 1mW 632.8nm red Helium Neon laser. Full specs can be seen at: http://users.df.uba.ar/padulo/archives/0.5%20-%201mW%20self%20contained%20He-Ne%20(red).pdf What would it be used for? What cool things could do with it?
Question by Morgantao | last reply
Hi, Im thinking of making a small CNC machine to make PCBs. Just the other day, I opened up an old scanner and found this stepper motor with 4 wires. The wires are orange, yellow, light brown, and red. The info on the motors label is: STH-39D1126 1.8 DEG/STEP 4.1 Ohms No. 18752G How can I drive this? Can I use an arduino, serial or parallel port? Thanks, Nadav
Question by nadav | last reply
Hello, Instructables Community! Here at Next Thing Co. we’ve seen such a great response from PICO-8 on C.H.I.P. and PocketC.H.I.P., we decided to keep going… Until Dec. 21st, give what you want for PICO-8 on your Raspberry Pi at getchip.com/pages/pico8. All proceeds go to Black Girls CODE, a Bay Area neighbor doing amazing work across the US introducing girls of color from underrepresented communities to computer programming. PICO-8 is a "fantasy console" that allows you to play 8-bit games created by the community. It also empowers you to edit existing games and code your own from scratch. Change the colors, music and create your own characters! We are excited to #CodeTogether and help support their mission to expand coding education. \(•◡•)/ - Lara and Everyone at NTC
Topic by push_reset
Will this 555 timer work and make these 8 leds flash with this circuit I drew up.
Question by mykiscool | last reply
Hey frnds! we r working on a simple persistence of vision project. for that i'v bought a cheap Atmega 8 From here: Robomart Atmega 8 Project Board With Controller V 1.0 I think it have arduino bootloader by before but i dont know how to upload a sketch to it. I have an arduino uno by before. Can it help in some way?
Question by DELETED_Snehil1101 | last reply
Has anyone else been "bold enough" (or maybe in my case, stupid enough) to download and test the new MSIE v. 8 browser - BETA ? I am finding it hard to get configured to "contact the web" *sigh* I am about ready to uninstall it and reinstall v.7 (I only use it when absolutely necessary)
Topic by Goodhart | last reply
Hi I am making a pokemon game in Game maker 8 Pro Version. I am hopeless at scripting with the GML ( with other types of scripting as well ). I can make the backgrounds but I have no Idea on how to make the battle scenes. So if you go into the grass it chooses a random number between one and 5 and if it is 1 a pidgey will apear 2 a caterpie will appear etc. etc etc.. Then Also the EXP and Health the PP and the pokemon attack moves themselves. I guess what I'm trying to ask is : Does anyone know what I should do ? Thanks Nathan
Question by ghostmonkeys | last reply
I have a few old computers and I am just starting in arduino and am wondering if I can use the km44c256bp 8 and a range of other components. I am getting right in to arduino side so looking to build all sorts of things cuz being on the farm I see a lot of potential in electronics but need I bit of guides of the components and how to use them. hope u can help dan
Question by dancrute | last reply
I am not looking for how to build the enclosure because that part isn't electrical (an area of expertise where I'm lacking), just how do I power them all because I am fairly certain that the USB port is not strong enough on it's own. Thanks all!
Question by ralegg | last reply