Search for speedometer in Topics


Bicycle Speedometer

With my customization of my bike, I just have to have a speedometer. But, I haven't found a single place on the Internet showing how to make one, just how to buy one.I know that speed = distance/time. I was thinking, since this is going on my bike, I could measure the circumference of the rim and hook up a circuit that would have a something (motion detector?) on the front brakes and another something on the rim, the one on the brakes counting the number of RPMs. I could have it hooked up to a timer, and it would have a digital read-out, which would calculate the speed, that updates every certain number of RPMs.Has anyone ever built a speedometer, or if not, do you think something like that would work?Thanks!

Topic by Bran    |  last reply


Heads up Speedometer

I want a heads up speedometer for my 2000 Toyota Echo. I'm not sufficiently skilled to design one yet. Anybody wanna jumpstart this?

Topic by augur45    |  last reply


How to fix a speedometer? Answered

I recently have my power steering fluid emptied unnoticed. I got stuck in the middle of the road, when I re-started the engine, the speedometer didn't work anymore. I got the power steering fluid filled with new ones but it didn't fix the problem (speedometer). Now I only feel I'm the most hazardous driver on the road, driving without knowing what speed I'm going to. I don't know anything about cars, how do I do about it? Please help, I would highly appreciate any advise. thanks

Question by smallboy73    |  last reply


Speedometer using AVR!?

Hello im using avr atmega 8 and i need to display the speed in a lcd panel!.How would i convert the data from the hall-effect sensor to digital and from there to numerical value..Im confused about the caliberation.

Question by Nr-Think different    |  last reply


i need help getting my speedometer to work? Answered

 i built the truck from the ground up so i am a good mechanic, i know what i am doing for the most part. but i am not sure if my speedometer is any good. the speedometer gear in the transfer case is good and working. and the speedometer cable is fine and it is hooked up properly. but wont show my speed, can the speedometer go bad? any advice will help thanks 

Question by vince 09    |  last reply


Dyna-Flex PowerBall Tachometer Hack HELP !?! Is their anybody out their????

I'm looking for a way to Hack this Dyna-Flex PowerBall Tachometer ( Speedometer ) I wish to use this LCD device to Time ,register shutter speed,& motor speed for 16mm & 35mm Motion Picture Cameras. The Tachometer displayes RPM's, I need to know the exact speed of the camera, ie: 1800 RPM's = 24 fps ( frames per second )I'm not sure how this unit works ? Induction current ? The Dyna-Flex Gyro Ball has coils & a magnet that is incorporated in the Ball. The Tachometer will only register the RPM's if it is on top of the PowerBalls window, and not on the side of the ball.This unit could be used for many other applications. Since it is the size of a Silver Dollar and uses little or no power, with the right pick up ( magnetic ? ) it could be of great technical use with other HACK projects.

Topic by MagicLanternProductions    |  last reply


A brighter speedometer? LED display?

My current speedometer uses the same type of display that you may find on a solar-activated calculator or cheap alarm clock (the ones that display black letters on a grey background). problem is, I cant see it in bright sunlight! Is there is a way to make a speedometer with my own set of 7-segments displays that use LEDs, or if I could convert my current one to using them?

Question by phephq    |  last reply


Type of sensor in automatic scooter's speedometer? Answered

So, which Type of sensor's is in scooter's speedometer. i've got a bunch of wires i've identefied all of them, only 2 are left, which one connected to a voltameter shows no hike in voltage when scooter is moving...... so which type of sensor is that.

Question by _Boltz_    |  last reply


I have a 1986 Honda Rebel 250 and the speedometer and odometer are not working?

I recently got my bike and noticed that the speedometer and odometer are not working, where should i start to look for the problem?

Question by kaylambenjamin    |  last reply


How could I make a speedometer for a gas-powered go-kart? Answered

I was wondering how I could make a speedometer for my go-kart. Could I use a regular cyclocomputer from a bicycle?

Question by buddybran    |  last reply




How to synchronize the brightness of a grille-mounted neon tube/LED bar to a car's tach/speedo?

I have a 1997 BMW 328i, and I've been thinking about installing either a neon tube or a bar of LED's in the grille of the car to use at night (most likely not street legal, I know). I want the brightness of the tube/bar to be controlled by one of two things: The speedometer or the tachometer. I.e., if the speedometer is at 0 MPH, the light is off, and if the speedo is at 75 MPH, the light is fully on. Same thing with the tach, light off at 0 RPM, light fully on at redline. Unfortunately, I haven't the slightest idea how to use the car's computer or the gauges themselves to set up a control module for the light. If any of you has a good amount of knowledge about automotive gauges, I would appreciate your help!

Question by Jonny Katana    |  last reply


How can I apply a calculation to a frequency counter?

I am trying to find a way to convert frequency (as in cycles per second (literal cycles of a wheel)) into speed. I've found schematics and code for a frequency counter, but I want to be able to display the actual speed in MPH in LEDs. The calculation is simple enough to do - I just need to know if there is a way that I could covert the output of a frequency counter to MPH by way of some calculation, and if so, how.  essentially, I want to learn how to program, say, a PIC micro to read how often a reed switch is closed, then translate that into a readable speed on 7-segment leds. where should I start? what kind of chip should I use? Where do I learn to code? I am pretty much lost thanks for reading

Question by phephq    |  last reply


Has anyone Hacked the," Nsd Power Ball Sm-01 Speedometer ?

Has anyone Hacked the," Nsd Power Ball Sm-01 Speedometer ? The Sm-01 ( the speedometer of Nsd power Ball ) Functions are: a. the count of revolutions ( hundred unit ) b. the current RPM c. the historical highest RPM/ the current highest RPM d. the physical index, 30 sec., 60 sec., 90 sec. The above-mentioned functions work individually. The speedometer can make users understand the use state of PB and provide real figures for reference. It combines the effects of rehabilitation, entertainment, and contest. Can anyone explain how this speedometer works. Is it Optical ? Since the Power Ball has 5 LED's incorporated in the Gyro Ball does this trigger the output ? Or is it magnetic ? When I, place compass next to the Power Ball the compass dial spins like a motor. How can I, use this speedometer to registered the speed or RPM of wheel ? Looking forward to hearing any suggestions, on how I may HACK this Great Speedometer/ TACH . This speedometer can be found on eBay for about $15.00 it's small and compact. It surprises me that no one has Hacked this for other uses !

Question by MagicLanternProductions    |  last reply


LCD arduino speedometer sending signal to solenoid

Hi i'm a student, i'm currently doing a project which require me to be able to send the signal from the LCD arduino speedometer to the solenoid, help please!!!!!!  P.S if i'm missing something out please post a comment.  Thanks 

Topic by brian.tan.10004    |  last reply


How can i create a speedometer using Atmega16 Microcontroller?

I have knowledge about using DC motor and LCD Interfacing in AVR(Atmega16) Microcontroller. I am working on a project "A line follower robot". I have almost completed my project, just want to add speedometer into it. Please help! Thanks in advance!

Question by Shivam_123    |  last reply


Need A Reliable MECHANICAL Speedomenter?

I recently motorized a mountain bike and it is great.  I bet I can top 40MPH!!  Only problem is, I have no way of knowing for sure how fast I'm actually going.  I could buy a digital speedo for like $10-20 but I want the look of having a speed gauge on my bike, plus it's a little harder to read a digital speedo at a quick glance when the screen is like 2 inches long and wide!  I saw this mechanical speedo on ebay for $10-20, but some reviews of it on other sites says it breaks really easily, or as soon as it hits 30 MPH it goes crazy.  Does anyone know where I can get a reliable mechanical (analog) speedometer?

Question by aeronut01    |  last reply


Easyest way for a arduno interrupt to call a funtion? Answered

Hi, I am trying to build a arduino speedometer for my go kart. I need a function that is called everytime a pin goes from low to high using a reed switch. The curcumfrence of the wheel is about 1m. The absoltue maximum this kart will be able to go is about 100km/h (28m/s). So the arduino pin will need to be able to be read 28 times every second. What is th best way to make the arduino call a function on a pin that needs to be read at least 28 times per second?

Question by David97    |  last reply


i want to make a digital speedometer... What would i need to make it myself ?

I want to make my own digital speedometer for my Suzuki Gs150. I could search the market and buy one but want to make this myself since i think dere's not too much required plus i should know how to. Just for the sake of doing something to upgrade my ride. Would like to add, Any help would be great, As i am eager to learn since i have alot of projects forthcoming, doing my industrial design.

Question by H4D1    |  last reply


Anemometer and the diameter vs circumference

Various Instructables have been created for building a wind speed anemometer, and nearly all use a bicycle speedometer for the read out. My question is, regardless of the actual diameter, the sensor can be close to the outer rim, or close to the hub, because one revolution is going to be one revolution and register as such on the speedometer. So, setting the speedometer to whatever rim size you desire, the readout would be correct. If you set the tire size to 24", then each time the sensor is tripped, it will show the speed for that tire size.  The same with 27" or 28" tires. The reason I'm asking is because I'm putting together a 'gopher chaser' from Harbor Freight (on sale last weekend for $1.50) which measures 17 3/8". I have no desire to cut new blades from sheet metal.... Thanks for any input on the issue.

Topic by GrumpyOldGoat    |  last reply



How would i repair a Gilera H@K Speedometer drive? Answered

Hey there, well basically i have a Gilera H@K 50cc road bike and i have discovered that the speedometer does not work. I unscrewed the cable and with my fingers, twisted the cable as the bike would generally do while its moving. As i did this the speedo moved and was showing that the cable was not damaged. I then took the front wheel off the bike and removed the speedo drive. I removed the full cable so i could do some tests and i found that when i put the cable in the actual squared out hole that it just spun freely. the square shape has been worn down on the actual worm gear not the cable its self. so i was just wondering what would be the best way to get that square shape back, i was thinking about either taking off about 0.5cm of the hole then adding a home made piece that had a square hole cut out of the center. Would this be a good idea? or is there something else i could do like fill the hole and push the square rod through? I cannot find one of these on the internet well the only one i can find is over £40. I don't really want to buy this as i could easily just buy a digital speedometer and fit that to the bike. Thankyou in advance :D

Question by god ownz    |  last reply


Anti-speeding device?

I am going to be buying a new motorcycle soon after spending several hundred dollars clearing up my previous youthful errors with my last one. Anyways, I am thinking about rigging a bright LED to the top of the windshield that comes on when I go above a certain speed. Right now all I can think of doing is like in the old movies when then make a time-bomb is drill a hole in the face of a clock (speedometer in this case) and have a wire come in contact with the speedometer when it reaches a certain speed. If anyone can come up with a more efficient and elligant idea and how to do it please email me at cjp91068@msn.com Thank you ahead of time, Chris

Topic by cjp91068    |  last reply


I observed suddenly my car stops while driving, steering wheel becomes hard and speedometer stop working, why? Answered

My car model is Honda CITY 2005 its dolphin type and i don't have any clue about this, please help me! thank you.

Question by SunilB5    |  last reply


what about toyota corolla car's sensors?

My car is toyota corolla 2000 I want to convert my current dashboard from analog to digital one. so, What is the type of the outputs of the car's sensors(speedometer sensor,temperature meter sensor and fuel meter sensor)? Is it voltage,current,resistance or frequency? How can I know the location of these sensors in the car??

Question by ahwaheed    |  last reply


Why do I get the intro text on all my steps?

On my post (https://www.instructables.com/id/Clean-and-classy-Bike-speedometer-installation/) all the text in all the steps is the text I put in for the intro. I tried re-edits, but it always reverts back.   I used Chrome and IE browsers and got the same thing. I'm using windows 8.

Topic by brianbarkey    |  last reply


My Scion tC is tweaking

My Scion tC 2012 has been acting up it starts right up but as soon as I drive and accelerate it feels like it lag when I step on the gas Also another symptom is that the battery icon appears and the disappears at times I come to a stop and sometimes power steering and traction control and speedometer stops working while I’m still driving

Question by VidalC6  


Motorized Secret Entrance, Duct Tape Laptop Skin, Mini Oreo Cheesecake

Motorized Secret Entrance Duct Tape Laptop Skin Mini Oreo Cheesecake Simple iPod Amp Readymade 100 Personalized Guess Who Plants vs Zombies Costumes Tony Stark as Iron Man Costume Build a Bike Ramp Gift to it! LED Speedometer Soda Bottle Fish Trap Insights into the DIY Community Key Transposing Wheel for Chords Instructables.com - 82 2nd St. - San Francisco, CA

Topic by randofo  


How common are electric tricycles with two drivers!

Hi Components i have are. 1.PMDC motor-400 w 2.40 v battery 3.and an Optional KERS mechanism 4.Weight of body 120 kg(with out drivers) and must be human powered and electric powered! Can you provide any suggestions or opinions where these trikes are used or will suit better and any electronic gadget additions on the vehicle so as to look more attractive!. please do add any images if you have seen something worth good looking and efficient! hei one more thing do trikes have speedometer installed in it? coz we are planning to install one in it!

Question by Nr-Think different    |  last reply


How to generate a beep sound in a watch ? Answered

I'm working on an electronic design project : Smart Watch  this watch worn  by clients suffering  from early stages of Alzheimer disease  will play a role so that it guides the patient back to his/her house . We pre-defined a distance boundary that the client will not exceed (speedometer). I want to know if there is a device (sensor) that should be integrated in the watch  so that it generates or creates beep sound (or vibrations) once the client crossed or approaches the Limit distance boundary ( something similar to the beep sound in the car system when it approaches an obstacle ). And , if it is possible ,any ideas or hints on how to implement it on the watch ? Thank you in advance , and if you need more information please let me know :)

Question by ClearVision    |  last reply


The $2500 Car

From a NYTimes article, a story about a new $2500 car hitting the market in India. It won't pass US or European emissions or safety standards, but still- how neat is this?For Tata Motors of India, which will introduce its ultra-cheap car on Thursday, the question was, what could it take out?The company has kept its new vehicle under wraps, but interviews with suppliers and others involved in its construction reveal some of its cost-cutting engineering secrets — including a hollowed out steering-wheel shaft, a trunk with space for a briefcase and a rear-mounted engine not much more powerful than a high-end riding mower.The upside is a car expected to retail for as little as the equivalent of $2,500, or about the price of the optional DVD player on the Lexus LX 470 sport utility vehicle.The model appearing on Thursday has no radio, no power steering, no power windows, no air-conditioning and one windshield wiper instead of two, according to suppliers and Tata’s own statements. Bucking prevailing habits, the car lacks a tachometer and uses an analog rather than digital speedometer,

Topic by canida    |  last reply


Motorcycle Modification, what kind of data might I want?

Hey all, I'm working on a rather complicated modification on one of my motorcycles, and I think I might be using both a rasberry pi and an arduino to drive it. I intend to include some kind of display to use in selecting mod modes. I don't think I'm going to use all of the processing power of either. Since I believe I'll have a digital display to show information to myself, I am wondering what kinds of data I might want to think about including on the screen when I'm not selecting a different mode. I currently have a fuel gauge and a clock, a digital speedometer and a tachometer on my OEM cluster. I was thinking that maybe Heading and or GPS location might be cool. Maybe outside temperature? Or connecting the system to my phone to transmit text/call information? If I had data, maybe I could do something more complicated, but I only pay for text messaging because it's cheap. If I thought of something cool, I maybe would buy some data too. Any ideas?

Question by disturbed1035    |  last reply


Help requested for purchase of components

Hi. I'm a newbie to embedding but I have a project that needs this and there is no commercially available solution that I can find so I need to learn how to build it myself. This can and will be done in modules... I figure I can tackle one task at a time until I end up with a complete working system, but use the system in the meant time, as I get it completed. The main goal is for an electric motorcycle conversion dashboard,  which will include a password protected relay switch "ignition key" to power the vehicle on securely (Task #1), a user configurable display to show speedometer, odometer, tripometer, clock, battery pack voltage, motor rpm/temp, controller temp, coolant temp, etc via a waterproof rugged tablet (probably a Windows 10 tablet, probably with an Android emulator installed). I'm finding that there are so many different options available, I don't know what to purchase. I want to spend my hard earned money wisely and just buy what I need the first time. Instead of learning the "hard" way, I want to learn the "smart" way. Please help me get started. Thank you in advance!

Topic by Stevonator    |  last reply


Nifty Gifty

My skills include:  electrical engineering, welding, programming, re-using, muffins Here's a link to my featured Instructable: https://www.instructables.com/id/%22Beating%22-LED-Heart-T-Shirt-finished!/ What I'd like to make for someone:  Bike Speedometer Kit/ EM levitation kit/ metal sculpture I'd be willing to make this size gift package for someone: s,m,l I'd be willing to receive a smaller or larger size gift package from someone than the one I make for someone else: sure! What I like:  functional things, educational things, things that make you go 'WOW', hand-made things, re-used things, art, visually stimulating/pleasing, elegant, muffins :-P What I don't like: cupcakes, k'nex/legos. I absolutely can't have: Type of thing I'd love to receive:  A functional/mind-grabbing piece of art.  Alternatively, something solar/energy related. Would you be willing to ship to an address outside your own country?  Yeah, sure. Confirm that are at least 18 years old: I'm 18++; [opt] januaryelement is someone who can keep a secret and knows me well.

Topic by T3h_Muffinator    |  last reply


Wireless, Wireless, WIRELESS! Help with circuits

Heyall, I just have a seemingly easy problem, but apparently it's not. Everything out there is wireless, doorbells, your electric car key, the fan control, garages, my bike speedometer. With so many wireless circuits, why is it so difficult to find a cheap, inexpensive circuit that a hobbyist can make? No, I didn't mean buy a circuit then mod it. I've searched all over and it's so hard to find a simple wireless solution that includes both a RX and a TX. I've seen Xbee but that's something I would have to use with my Arduino. It's also not exactly 'cheap'. So that get's crossed off the list. Are there any schematics for simple wireless RX/TX button or two that works up to 50 feet? What about schematics for a wireless circuit that works up to 100 feet? For my RC plane I have this TINY receiver that has six channels. The transmitter isn't that big either and it works up to 1 mile! But instead of paying 25 bucks for 1 mile and 6 channels, what about 1 or 2 channels for a 10 dollar circuit? See what I'm jabbing at? I don't want to by a doorbell then start unsoldering stuff from board to mod it! With so many wireless applications out there this should be a walk in the park! If you can give help me I would GREATLY appreciate that! Thanks!

Topic by HavocRC    |  last reply


Storage Space for Parts

I'm sure me and Skunkbait aren't the only ones who have kept car or motorcycle parts in odd places.I hear my dad kept a motocycle in his living room for years, because the place didn't have a secure garage. For a little while, if you wanted to sit while watching TV, you had to sit on the bike or the floor, because there was no other furniture. Plus, it's just priceless to be able to ride out your front door.I know some folks who keep spare electical bits like turn signals and partial wiring harnesses laying around the house. Hanging on doorknobs. Apparently, bachelors, those aren't just for hanging underwear anymore.There have been a few times that the chainsaw and lawnmower had to live in the house so a visiting motorcycle could live in our shed.Generally, whenever I get a new part or tool home, it has to spend some time just sitting around while I try to figure out what the best way is to use it. Or just figure out why it looked like a good idea to buy another timing light.I've been known to hang particularly sexy motorcycle parts on the wall. I spent a lot of time trying to get a 10-120 speedometer from a Volvo to work as a clock one time. That didn't work, but it did make a good paperweight.Where have you kept parts, and why?

Topic by Rishnai    |  last reply


Rebuilding NordicTrack ski machine drive rollers

Many people still buy and use a NordicTrack Ski Machine, although these machines are not as popular as they once were. I have talked to people who say they just plain wore out a ski machine. The part that wears is the one-way clutch inside the drive rollers. NordicTrack makes the one-way clutch sound very mysterious. In reality it is a one-way needle bearing and is available from Amazon or locally from a good bearing shop. The internal diameter of the one-way needle bearing used in my machine (Challenger, similar to a 303) is 5/8 inch. The outer diameter is 7/8 inch. The width of the one-way needle bearing from end to end is 5/8 inch. I originally had hopes of being able to install new one-way needle bearings, myself; but, they together with the bronze sleeve bearings on either side of the one-way needle bearing inside each drive roller are pressed into place. Pressing bearings is not a job for the average home tinkerer but requires a bearing press capable of exerting tons of pressure in a very precise manner. You can often have a local machine shop press the bearings in your machine's drive rollers. Or, you can send them away to Nordic Track Guy and have them rebuilt for about $33 with a one week turnaround. The core of the rollers really does not wear out, but new rollers are available on the Internet from $65 to $95, depending on the vendor. From what I can find, some models used an alternate size. Check to be certain you order the correct rollers, if you choose to replace. One of my drive rollers suddenly began to hiccup. It seemed that the clutch did not always release immediately when I pulled my foot forward. Then I noticed a little mush in the response when I began to bring my foot back on the push stroke. Before you rebuild or replace your rollers, try this: Remove one side of your Ski Machine. See the second photo and check the exploded diagram in your manual. Four nuts and two screws, all plainly visible, need to be removed. Slide the washers and the roller off of the top side. The shaft and flywheel can be wiggled out of the other side without removing anything from that side. Remove the washers and the roller from that side, too. Flush the one-way needle bearing by squirting some penetrating oil, like Liquid Wrench, into the bearing. Work it both ways with your smallest finger. Push a facial tissue into the shaft hole in the roller and sop away the penetrating oil and any metallic dust it lifts. Do this several times. Let the rollers air dry. A little lubrication is good. People who comment on lubrication for one-way needle bearings use Tri-Flo (I am not familiar with it.) or they use a little ATF transmission fluid. You want enough to lubricate, but not so much that the bearings slip. (But, see the comments below where the oil impregnated bronze sleeve bearings are supposed to supply enough lubrication for the needle bearings.) Put the rollers back in place on the shaft. Check to be certain they grab on the rearward stroke and release on the forward stroke. Reassemble the machine. Do not forget the washers between the roller and the side board. My machine works again as it should. The day will likely come when this simple fix does not help, and I will need to rebuild or replace the rollers then. But, for now, my rollers have a new lease on life. What follows is for your information. The first photo is of a portion of the back cover of the manual that came with my machine. It shows a cutaway image of the drive roller. The black printing is mine. Notice the three cylinders inside the drive roller. The outer two are bronze sleeve bearings. The center one looks like a roller bearing, but is a one-way needle bearing. A one-way needle bearing is essentially a roller bearing, but the rollers are able to move forward and backward a little in their cage. There is a wedge shape for the axle of each roller that causes the rollers to bind between the bearing cage and the shaft when the rotation is in one direction, but they are free in the other direction. Here is a description of how they work with graphics. This link is for an Instructable about a number of modifications I made to our NordicTrack ski machine, including how it can be stored vertically in a closet. If you do not have a digital monitor for your skier, or need to replace one, here is an Instructable on how to make your own from a digital bicycle speedometer.  Check NordicParts for any parts you need, also Nordic Fitness Ski Machines. Danny at Nordic Fitness Ski Machines has some very nice new rollers for sale.

Topic by Phil B    |  last reply