Simple Arduino program

In Progress


I am just looking for some lines of code for my project.

I need a tachometer on my exercise bike, and would like to use a magnet and 6 hall sensors.

The pedal with the magnet passes in front of the hall sensors that are connected to an arduino duemilanove.

The speed would have to be updated at least 3 times per second in a variable, and be negative if pedaling backwards

I am struggling for when the bike slows down, suddently stops, or goes backwards, so would like someone to write it for me

It does not have to be long,

Skills: Arduino, C Programming

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Project ID: #4977325

Awarded to:


Hi there, this would be no problem, If you'd prefer someone UK based I'd be glad to sort this out for you. I've just taken on a large design project for another member which is taking up my electronics bench but I'd be More

$25 USD in 5 days
(0 Reviews)

12 freelancers are bidding on average $112 for this job


Hi, I have been using Arduino for a long time now and have very good command over it. I can do your project in a couple of hours. Kindly provide more details of the mechanical and electronic setup and exact diameter More

$65 USD in 3 days
(13 Reviews)

experienced embedded systems and Arduino, i can do it , please let me know if you need more information its an easy task for me

$157 USD in 0 days
(13 Reviews)

Dear Sir, We are experts in MCU programming on PIC, Arduino, TI MSP430 ICs, Please give us to show our ability to do your project on your specification. Regards, Lasantha Prasad.

$133 USD in 4 days
(3 Reviews)

I would help you with this project. . . .

$110 USD in 4 days
(2 Reviews)

Hi, I've worked on several Arduino based projects before, and it will be fairly easy for me to write your program. I can add a memory element with regard to your speed, which you'll be free to vary on your own to ensur More

$50 USD in 10 days
(2 Reviews)

Hi, I am a Mechatronics and Control Engineer, you can check my work on my blog , I am expert in Arduino as you can see on my blog. Thanks.

$200 USD in 5 days
(6 Reviews)

Hi, I have experience with Arduino programming and can do your project. Real price for developing is high then your budget. Only hardware exceeds budget. And main part of project is software. 10-30$ is hourly rate of More

$166 USD in 5 days
(1 Review)

Hi.I have great experience. - knowledge of modern element base. - knowledge of digital and analog circuitry - practical work experience with the AVR architectureи software development for microcontrollers Atmel (C\C More

$122 USD in 3 days
(0 Reviews)

hi,am new to freelancer,now am working as a embedded system engineer..i had lot of experience with arduino.....

$100 USD in 5 days
(0 Reviews)

I can do this project for you.......................................................................

$111 USD in 7 days
(0 Reviews)

Hello, I am ebmedded systems enthusiast. I will be happy to help you, see some of my projects or send me a message if you want some additional information :-)

$99 USD in 3 days
(0 Reviews)