Arduino script for h-bridge reverse polarity and a few extras


Dear friends I need you to write a script for Arduino board. I will connect a h-bridge to control electromagnet. I need to change the polarity of the electromagnet very fast - from 100 to 1000 microseconds.

The reversal of polarity will be represented as 0's or 1's as you will see on the attached images.

- I want to be able to change your code and put the sequence of 0's and 1's that I need.

- The code wont be changed very frequently (maybe only to add a few symbols) so you don't need very complex code (simple is always better).

- I will need to put more or less 0's or 1's.

- For every reversal there is a fixed time in microseconds. For example the 1's are always 50% of the time for 0's - if a 0's are 500 microseconds the 1's should be 250 microseconds.

- I will need to have between 100 and 150 (maybe some more) (real example: 00001101101110000011010110101010000110001011100010110000100001011010011111001101100011111100110001010111101101110)

I need to connect 2 LED sensors that will sense the time between the activation/deactivation (example 50 or 60 or 100 ... etc. milliseconds) and based on that time the code and the time for 0's and 1's to be automatically adjusted.

- Example If I have 100 symbols - 50 of them 0´s and 50 will be 1's and the time for all is - 50x250 microseconds (the 1's are half the time of 0's ) + 50x500microseconds = 37500 microseconds (37,5 milliseconds). If the time from the sensors is 50 milliseconds the values of the 0's and 1's should be corrected automatically to suit the time from the sensors (50ms) multiplied by 2 for example (or 1,5; 1,6; 2; 3;4 will be hard coded only once). And so the time from the sensor will be 100ms and so the time of the 0's and 1's should be corrected properly and will not be 250 and 500 microseconds, it will be a litte bit more.

There are only 2 variables after we have the time from sensor - time for 0´s and time or 1´s.

I will accept code that is working, it doesn't matter how is written. Just need an explanation how it is working and where to change it to put more 0's or more 1's and to change the multiplier for the time from the sensors.

I have attached some pictures from internet where you can see how the 0's and 1's are interpreted on magnetic tape.

You can ask me anything you want. I have a little experience with Arduino and you are welcome to suggest whatever you think will suit my needs.

Skills: Arduino, Electronics, Microcontroller, Software Architecture, Software Testing

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Project ID: #5338076

21 freelancers are bidding on average €222 for this job


We are a team of professional engineers in C/C++/C# for windows Objective-C for MAC and iOS and Java for Android, with 14 years experience in programming field. We are professionals in hardware development and embed More

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Hola, ¿Cuánta precisión esperas de la salida? Originalmente las rutinas de arduino tienen un pequeño delay (lo que quizás impacte para lo que quieras ese electroimán). Yo puedo fácilmente hacer un script que pro More

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Hi venzo. Im Greg. Im Telecommunication engineer. I can help you with your project. I have worked in many projects with Arduino. I can build a prototype and ship to you or send the code. Ive programmed directly f More

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experienced embedded systems / electronics engineer with experience in arduino and microcontroller for over 5 years, i can help you with your project please check my feedback on my profile as well as my own website for More

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Hi, I can not say that fully understood the task. But is willing to discuss the details. Relevant experience with Arduino is.

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Hi, I am a Mechatronics and Control Engineer, you can check my work on my blog , I am an expert in Arduino. Its better if you add me on skype so that we could have a detailed chat over More

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Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha More

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hello, i can provide the working circuit. please specify the choice of arduino. i have other options instead of using H bridge. Please feel free to contact. Best regards, Shahbaz.

€581 EUR in 15 days
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I have working with Arduino projects the last four years. The type of work described by you is within my skills. I am very interested to assist you in your development needs.

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Hi, I've worked on several Arduino projects including a quadrotor, and I think I can help you out on this one. One of the projects I worked on involved reading a signal from the source of a laser, and after a delay More

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Hello. Tell me which version you are using Arduino? If you have identified contacts connect to an external circuit elements, please let me know.

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Hello, Let me introduce my self. I am Yasir Amir, you can search me on web I am also running and online consultancy business. I am an experienced guy and have worked on many similar projects. Pls check out my profil More

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hi we are team of experts having more then 8 years of experience in embedded control system development we delivered more then 60 products to clients build on microchip platform we have professional expertise on ardu More

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I am an expert in Arduino , I have done this before . Need not worry about the milestone payment unless and until you are satisfied do not release the final milestone. Please feel free to contact me through a private m More

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Greetings! Sounds like an interesting project. I've played around quite a bit with Arduino, and basic stamps back in the day. I also have experience building h-bridge motor controllers. here's a link to a huge and c More

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Hi. I am a professional Electronics Engineer having 6 years of experience in programming micro controllers and arduino. I CAN PROVIDE YOU THE WORKING CODE AND OTHER OF YOUR REQUIREMENTS TOO. Contact me.

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