I was just wondering if anyone knows any methods of controlling the energy discharge from a capacitor..
Posted by nuncoop 11 years ago
As above looking for help designing a circuit around this chip I have plenty of datasheets but can't find any schematics besides those in said datasheet
Posted by pmills4 5 years ago
I am new to process control software. We are working on a solar steam project that will require some form of automated control. We need suggestions for software (preferably open source and will run on a windows pc) that will handle temp and pressure data aquisition. The software should also be able to affect small electric motors based on the data parameters. Also any recommendations for temp and pressure (psi) sensors would be greatly appreciated. Thanks for any suggestions
Posted by culinadge 10 years ago
I have these controls http://www3.towerhobbies.com/cgi-bin/wti0001p?&I;=LXLDP9**&P;=MLOn the receiver end each channel has 2 negatives and one positive so you can switch polarity. My transmitter is not doing anything on any channel and I get constant current flow in one direction even when the transmitters off. I donâ€™t know much about these types of controls and I looked through the manual and canâ€™t find anything to help. Is there something wrong with the controls or is something else going on? Can anyone help?
Posted by kendallickes 9 years ago
My goal is to press a button on my transmitter side and have the receiver flip a relay - that's all. It's probably the simplest possible use of RF technology... and it's almost impossible to work out on google. I am trying to transmit and receive just a simple control signal about a range of 300m, so dismantling 27Mhz toy cars is not an option. Has anyone successfully made a simple RF circuit before? I can buy a 433Mhz transmitter with this range, but they take FSK or ASK modulated signals. From what i can tell, there is nothing simpler than the 'OOK' version of ASK modulation for transmitting signals. If I'm wrong, please correct me. Otherwise, if I'm stuck with FSK or ASK. I found one site (bottom of PDF: http://www.edn.com/contents/images/101101di.pdf) providing a simple circuit to produce FSK. I was hoping for something simpler, but if you think this is the easiest way, i'll give it a shot. Can someone guide me towards the correct ICs and circuits to create this project? Thanks in advance for your help
Posted by trytrytryagain 7 years ago
Hi, im wanting to build somthing simple to control the heater control valve on my fiesta. its a simple solenoid valve at 0v its open(hot) at 12v(14.4v) its closed(cold) the propper control board uses pulses to control the valve, the board has since given up and im left with a very hot car, now i thought a simple way to sort the problem might be to use the 10k pot on the control board with a MOSFET and just vary the voltage going to the valve. will this have the same effect on the valve?
Posted by stevelee10 5 years ago
I'd love to make some throwies that can be remotely controlled. At a minimum I want to turn them on and off, colour and brightness change would be fantastic. What's are the options for doing this - what's the cheapest, lightest, smallest way to control them remotely? Some kind of RFID and switch? Is this going to drastically raise the price from about $1 a piece, or could it be done cheaply? How many could feasibly be controlled at once?
Posted by ollieg 6 years ago
Hi guys, anyone knows the concept behind this https://www.youtube.com/watch?v=nAJvbFYtpIU. It is a wireless drink pourer, that can control the liquid flow. Can't find if something like this can be made with Arduino. Does some one have an idea if this can be done?
Posted by justforcavaliers 10 months ago
Facial feature detection is an interesting addition to robotics. Much of human communication is done without verbs and nouns so a robot that can pick up on visual cues from the human face will probably be leagues ahead of it's peers. I imagine that using this feature it can pick up the disconect between words and facial expression to get a understanding of sarcasm. Turing test, here we come!Face Controlling Robots
Posted by lamedust 10 years ago
Has anyone seen this project? http://makeprojects.com/Project/Control-a-Servo-Motor-Without-Programming/990/1 I am trying to do it, but I don't see where to put the potentiometer in the circuit. Although I have built a few kits I am pretty inexperienced with circuits. Am I missing something? I have built most of the circuit on a breadboard. I will post a picture when I am done.
Posted by ehudwill 6 years ago
I want to use a GE A-C motor (5KC33GG101): Connection Type and Voltage Rating in Volts: 115.0 line to neutral single input Rotor Speed Rating in Rpm: 1725.0 single full load Frequency in Hertz: 60.0 input to run a 50' line on pulleys for a Halloween project but it's too fast. Can anybody help me figure out if I can buy/build a controller to run it slower? Thanks in advance!
Posted by mario-alonzo 1 year ago
Hi there. I salvaged 2 boards of LEDs from an old LED can at work. They were previously DMX, and have an array of red, green, and blue LEDs. There are four leads coming from the board, +, -, a dashed line, and an unmarked line. I am looking to integrate these with another project, but am unsure how to go about finding how to control them electrically. I was thinking it might be digitally controlled right on the board, but I see no IC. All I am looking to do is figure out where voltage needs to be applied in order to have different RGB levels. If I helps, the number printed on the board is FT140PCB GS. I am able to attach an image if that would be helpful. Any ideas of how to go about this? Thanks a lot, anything would help!
Posted by chamberlain2007 7 years ago
Hi wel i havent used this but here gose.. i have three strobe light bars that i like to build a control box now ive seen other boxs going for top dollar i like it too turn on each strobe light bar an have a mode switch with each light to change the flash pattern can anyone tell me how i can do about it i know that power is apply an there another wire that when ground i apply it changes the pattern i want too know doo i need resitors or what thanks
Posted by kid617 8 years ago
Hello everyone! I have a thesis to design a temperature stabilizing(controlling) system for solar cells.I need to use 12V Peltier battery and a simple pc fan.Any further help is appreciated.
Posted by UgurO 3 years ago
I am looking for some advice in regards to a DC motor control circuit i am trying to build out of some electronic parts I have lying around. See attached control circuit diagram. The idea is that a timer will trigger the relay to either run the motor in reverse at full voltage or it will run forward stopping and starting as per the wave form from the 555 timer. So on for about 2 seconds and off for about 2 seconds. This waveform can be changed using R1 and R2 which are trim pots. The circuit works as expected until I hook the motor up. When the motor is meant to be following the waveform from the 555 it will actually stop and start very erratically. Any help on the reason for this would be great. Also this is one of my first electronics projects and any feedback on my design would be appreciated.
Posted by jmullo 2 years ago
Hello guys/girls I got a Playstation controller (CECH-ZRC1E) its for PS3, AMP and TV but i want to sync my TV, but the problem is... I got a unknown TV (Terris LCD 2213, Medion, BEKE, TEVION) so i can't find the code for it plus The PS3 remote is IF (infrared) and the original is RF (Radio Frequency) So my question is, is it possible to sync it on one way? The chance of finding the codes isnt a problem but if i can use a IF remote on RF remove (That's what i'm thinking that its Infrared and Radio Frequency, when i block the top side of the original it wont work, and the PS3 will respond (tried it on the PS3 and it still react)
Posted by Snozuf 4 years ago
I am adapting a 1:6 scale motorcycle and sidecar for one of my GI Joe/Action Man figures. I would like to put a 3 wheel radio control unit in the sidecar base so that when attached to the motorcycle it drives the combination. I expect someone has made or adapted a 3 wheeler for this type of use but I can't find one anywhere. Any help will be very much appreciated. I've attached a picture of the motorcycle to show some of the upgrades I have already made (the lights are LEDs with an on/off switch in the side panel and coin cell in the pannier). Thanks for looking, Bern
Posted by InvictaJ26 4 years ago
Hi im ramanta from indonesia i try to add an aux in to my old boombox, the reference from here https://cocodrilabs.wordpress.com/2012/04/05/installing-an-auxiliary-input-on-a-stereo/ i already got it working, but the problem is the potentiometer(volume). Only one channels work my boombox has 2 IC Amp, one for each channel. I already try to connect the source(ipod) directly to the amp (without the pots), work like a charm. But the sound is too loud and distorted
Posted by ramanta 3 years ago
I'm working on a sort of a scavenger hunt thing. Night time on an outdoor trail. For one station I would like to have a set-up where a seeker would press a button (like a doorbell) which would light an LED, telling them where to look. I know that I could connect a battery, a button, and some sort of a light using actual wire, but it would be great if I could do this wirelessly. It would only have to work over a short distance (a few dozen feet at most) and only for one evening. I'm not especially electronics-savvy, but I work well with instructions. I'd appreciate any leads!!!
Posted by Purple Chez 3 years ago
Hey, this is my first post so bere with me as I may be a bit all over the place. I am trying to control an LED message board via usb. It has a manual keyboard on the bottom that upon closer inspection has 8 wires on one side and 7 on the other. By placing a wire between a wire on one side and a wire on the other a character is inputed. So by using some sort of USB interface with at least 15 pins I think it must be possible to input to it via USB. e.g. When A is pressed wires 8 and 15 should be connected in order to input A, for B wires 8 and 14 should be connected, ect..... I am also getting my Rasberry Pi sonn and was thinking that the GPIO pins could do this but i'm not sure. This website documents a similar project using the same display but via a different method: http://srimech.blogspot.co.uk/2003/04/led-message-board-hacking.html Thanks for reading, please help!!!!
Posted by jacobknott 6 years ago
Hi all I am interested in building a specialised tracked vehicle but instead of your "normal" remotes I would prefer a cable remote control that can at least use 12 or more functions. I actually look of building this in to a small Metal Case like you use for camera equipment with a monitor in the Lid and include the battery pack to power everything. Anyone got any ideas of how to build such a remote and the outlay of the functions. I have some knowledge in electric and schematic. I do have a CTC 3D Printer with Dual Extruder but I only just got this one and have so far not used it as I want first to get the feel for it on how to work with it and look up a variety of videos on YouTube before I use this one in anger. I also do not yet have the Case as I am still bidding on one on eBay. I plan to start the build in September / October and be looking at the moment for a large (1/16 or larger) Tracked Vehicle Chassis. I once did see one in a Chinese Online Shop but cant find it again. I am sure that I bookmarked it but again, I cant find it. So I am looking over various online shops for a set but so far I had no success. If anyone has build something similar before please get in touch with me as this is my first real project that i would really love to pull of over the winter time to hopefully use next summer.
Posted by BernhardK4 2 years ago
I have an electric billy cart with a dead controller board. I constructed the kit circuit below to replace the dead board and it works well enough for the job except for one small problem. The throttle on the billy cart utilizes a hall effect device and not a pot. The billy cart also has a handbrake with a switch that closes when applied. I use this with a resistor to discharge C2 and pull pin 4 (inhibit) high. This ensures a gentle start (as the capacitor slowly charges through the 100k resistor) if the brake is released with the throttle advanced. The output range of the throttle is 950 mV to 4.1 V if VREF (5V) is used as the supply. (I'm dropping it in in place of the pot.) 4.1 V is sufficient to achieve the maximum 90% duty cycle of the chip, but 950 mV leaves me with a minimum duty cycle of about 21%, and of course a motor that won't stop. Will changing the divider ratios 20k/2k2 & 47k/47k be sufficient to get me zero speed or am I going to have to do something more exotic? Thanks in advance.
Posted by Rasputin182 10 years ago
Hello, Instructibles gang…. I originally posted a similar question over the weekend, and then got some feedback telling me that there wasn’t enough information to bring in worthwhile responses. My intention wasn’t to be secretive. Rather, it’s a project that’s still in the planning stage and there aren’t yet many specifics. But I think I can still flesh it out a little bit, and hopefully gather some more specific suggestions. I’m planning a sort of a scavenger hunt thing coming up in October. Most of the stops/stations will be fairly straightforward “orienteering”-type scenarios: “20 paces at 250 degrees,” “north to the hollow stump,” that sort of thing. But I still want to mix it up a little bit. One of the ideas that’s swimming around in my noodle is that, at one stop, folks will be told to “push the button.” It will be dark, so they’ll have to hunt for the “button”… basically a doorbell… and maybe secured to a tree (in such a way as not to harm the tree). When they press the button, a light will be illuminated at a short distance, leading them to their next stop. I know that I could easily do a simple circuit with actual wire, but it would be far nicer to achieve the same result wirelessly… and even though I’m not very electronics-savvy, I imagine it would also reduce the problem of resistance in the circuit. This only needs to operate over a relatively short distance… almost certainly less than 100 feet… probably much less. And while it must be able to operate out of doors (a woodland trail in a rural/suburban park) it only needs to last for a few hours. An LED… or maybe a chirping sound effect… something that would draw seekers from one spot to another. Thanks for any suggestions. And please let me know if more information is needed.
Posted by Purple Chez 3 years ago
I need to keep a cat out of a room that has a 12 foot wide opening. I was wondering if a strand of wire or a coil of wire could be installed under the carpet across the 12 foot opening such that when the cat, wearing a collar fitted with a magnet came close, a current change would be created in the wire or coil and an alarm could be generated that would scare the cat away? Would this work and if so, would someone like to help me make it happen? Thanks
Posted by in0v8 3 years ago
1. Windows 8 2. Firefox 22.0 3. URL = any Instructable with many comments. 4. Screen shot below. 5. For 'ibles with many comments there are two comment boxes, one at the top of the comments that works, and one at the bottom of the comments that doesn't work. You can't see my mouse in this picture, but I tried to click on the Post button, but nothing happened. No page loading, no error message, no popup tip or flag. (Note: for 'ibles with few comments, there is only one upper comment box.) V/r, Patrick (espdp2)
Posted by espdp2 5 years ago
Every October I organize a Halloween event for Letterboxers in my region. For those who aren't familiar, letterboxing has some similarities with geocaching, which seems to be more well known.... an outdoor treasure hunt thing. Since I don't hide the hiking trail letterboxes until the day of the event I can't give seekers printed clues. Since the hiking starts after dark I have used light -- LEDs -- to direct participants to the boxes. This past October I thought about how neat it would be to fix the LEDs so that they would illuminate only when instructed to do so. Although I want nothing more complicated that for the LEDs to light temporarily when a button is pushed - I figured that this was not a practical option... UNTIL I saw a recent instructable that repurposed TV remotes to activate other items. So, now I'm wondering: A) can I rig up a system whereby LEDs would be lit by some sort of remote control, be it an old TV remote, a phone, or whatever, B) if so, is it something that a fellow such as myself, who is NOT an electronics person but who is very good with instructions, could do, and 3) would it break the bank to set up as many as nine LED "targets" and at least several remotes? I always love the advice I get in these forums... looking forward to hearing from you!!
Posted by Purple Chez 3 years ago
With all this 3d printing now days, and some of it is being used with K'nex I'm wondering if there are more things that need to be added to the range. Now i can understand that K'nex with its target at younger folks (the highest age they list is 9+) it probably isn't feasible for them to spend the time developing some things. And the things im talking about? Pneumatics More powerful motors Custom gears (sizes, rack and pinion, worm gears) Servos A more dedicated robotics system anything else i may have missed? Just peoples thoughts on whether this is worth pursuing, perhaps even make them for sale (please don't sue me K'nex)
Posted by jjefferson1 2 years ago
I am looking to add a remote control to a circuit board which controls two separate motors (forward/backward and left/right) The control should be pressure sensitive. right now the control is a mounted 4 directional switch (like on a motorized wheel chair). How can I add a remote to it? I have an old R/C car board, and the remote that goes with it.
Posted by DaMadProfessor 11 years ago
Hello I have a car that I want to warm up in the winter. However, installing a remote starter is expensive and complicated since its a VW. Is there a way I could rig up a remote controlled heater inside of it that runs from the cigarette lighter? If I am posting in the wrong place, please tell me.
Posted by LucidDayDream 3 years ago
Hey guys, I need to create a motor that can have a fader/dial so that I can control its speed (rotations). I figure it must be a simple enough system but I don't even know where to begin in terms of parts. I just need it to be strong enough that I can spin a GoPro camera (fairly light - but not toy car motor weak). Sincerely, Alex
Posted by mrmadsci 6 years ago
I would like to know how to combine narrow width motion detector to control LED Say putting two sensors side by side and each controlling independent LEDs. Not sure how to go about it. Is there kits available that I can modify? Also, I thought about using IR but I dont want to break a beam rather I hope make something thats like any outdoor motion sensor light but in a small scale that can control each LEDs. Any leads? I got almost zero experience in electronics. Well, if you count elementary school elec class that I took but forgot everything about it. thank you
Posted by jifjif 11 years ago
Hi my names Paul Im doing a project on building a Mind Control RC Car using the EEG Emotiv Headset. I was planning connect the headset to the laptop and use an arduino to connect up to an interface board(im not too sure) which connects to the remote joystick. I was wondering if anyone has done this project before and it would be so awesome to get any tips or instructions of any sort. Thanks please let me know
Posted by paulyshin 4 years ago
Hello all. I hope this finds you well. I would like to know whether there is a simple way to convert my existing RF remote control (bought from Maplin, UK, for controlling included mains plug adapters) to use physically different buttons for switching things on and off. The idea is that I'd like to - neatly, if possible - mount the new buttons onto a flat surface: a table top, for example. Could anyone advise whether this is doable without dedicating more than a day or two to it, and how; or if I should should look for an alternative way around the problem? Many thanks indeed, James
Posted by dialmformostyn 3 years ago