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Build Variable PWM generators with display using remote switch inputs

$30-250 USD

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Opublikowano ponad 3 lata temu

$30-250 USD

Płatne przy odbiorze
The project is to build an in cab controller generating a PWM signal to control a hydraulic valve. Once the first unit is proven, a quantity will be required, with potential for ongoing production. External proximity sensor switches will send a signal to the controller to tell it to either increase, or decrease the PWM duty cycle. The PWM frequency and the rate at which the duty cycle will change should be adjustable, preferably with an internal adjustment such as a screw potentiometer. The maximum and minimum duty cycle should also be adjustable. Raw unregulated power supply will be 12-14V (vehicle battery). The in-cab display will show the operator the present duty cycle, plus allow the operator to manually override the controller to set the duty cycle manually if required. It should also indicate (eg via LEDs) when the + and - rate adjustments are happening. In summary, the Inputs will be: 12-14V DC unregulated power; Common/earth; Switch signal for "Increase"; Switch signal for "decrease". Outputs will be: Power and Common for "Increase" switch; Power and Common for "Decrease" switch; PWM output to control valve. Ideally the display should be customised for this application, including branding. It may require a customised plastic housing. Circuit boards are available which could be configured to perform these functions, such as these: [login to view URL]
Identyfikator projektu: 26354888

Informację o projekcie

15 ofert
Zdalny projekt
Aktywny 4 lata temu

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15 freelancerzy składają oferty o średniej wysokości $189 USD dla tej pracy
Awatar Użytkownika
Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working product. I HAVE ALL THE HARDWARE AVAILABLE TO TEST AND DEBUG THE CODES. If you wish we can discuss details in chat. Thanks
$200 USD w 7 dni
4,8 (57 opinii)
6,8
6,8
Awatar Użytkownika
Dear Client. I have read your description carefully about==PWM GENERATOR I am Muhammad and I am an Electrical engineer having 5+ years of actual experience in Embedded System Design based on Power Supply System Design, IoT, Wearable Device, RF Design, PCB Design, and Simulation. Here are my experiences that I built before. - Schematic and PCB design and Layout using Altium Designer, Eagle, KiCAD, OrCAD. - high-speed, flexible, Multi-Layer PCB design. - DDR, motor control, power converter, UART, SPI, I2C, RF, BLE design - ARM, DSP, MCUs, Arduino, Raspberry pi experiences. you can check my profile portfolio also https://www.freelancer.com/u/binyameen441 If you assign this project to me, I will finish it on time at the utmost quality. If the above offer sounds like something you would be interested in, I'd love to hear from you. Sincerely, Binyameen
$40 USD w 2 dni
5,0 (106 opinii)
6,3
6,3
Awatar Użytkownika
I have over 35 years experience as an electronic design engineer, please see my profile for more details The current price and timescales are only place holders to allow me to communicate with you Please can tell me what current the valve draws Please can you tell me more about the proximity sensors you want to use. Have you got something in mind? What exactly are they sensing. If you think I can help then please send me further information Best Regards Dave Lelievre
$250 USD w 7 dni
4,9 (25 opinii)
6,3
6,3
Awatar Użytkownika
Dear Sir, I am an expert in embedded systems with 20 years of experience in Firmware development, Prototyping and PCB Layouts. I have developed several projects in the past based on 8-bit, 16-bit and 32-bit MCUs. I have checked the details of your project. I will develop a working prototype for you (as a proof of concept). I am online and available for discussion. Regards Talha
$250 USD w 10 dni
4,5 (61 opinii)
6,3
6,3
Awatar Użytkownika
Best Valve Control Design Expert at your doorstep! Dear Client, I couldn’t stop myself from bidding after going through the description as they are an exact match with my skillset and experience. I have experience in PWM and Valve control based PCB design and know all the intricacies required to get the job done with perfection. With more than 5 Years of experience in PCB Design and Circuit Design in Wireless Products, I can ensure you best quality work and before time delivery. Following is a brief list of expertise that I am carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc Please answer the following questions: 1. What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? 4. Are there any other specific requirements besides the ones you mentioned Let’s have a quick discussion for 5 mins where I would formulate a plan of action of how we shall take this project to the horizons of success. Regards Pratibha(Nickname -Avi) Quality is never an Accident
$180 USD w 2 dni
5,0 (12 opinii)
5,5
5,5
Awatar Użytkownika
Hi, I have read your project description carefully, and I am very confident about your project. I have good experience with projects like yours. Let me discuss about your project. I will complete your project in a short time, perfectly and clearly. I will keep good communication. Best Regards, Andrii.
$50 USD w 2 dni
5,0 (9 opinii)
4,4
4,4
Awatar Użytkownika
Hello Thank you for your job posting about PWM generator. As I have good experiences in this field, so I am very glad to meet your project. I have the energy and wisdom to design products for today’s technical challenges. You can expect a professional design, every time. Best regards
$140 USD w 7 dni
5,0 (2 opinii)
2,9
2,9
Awatar Użytkownika
Hello, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems design. I just finished a project that follows the input signal that is implemented to it. It creates two PWM signals with the same frequency and same duty cycle with 90 degrees out of phase in the output of the circuit. I checked your requirements, I am sure that I can help you with your project. I think that after a couple of changes with my previous project I will have your project finished. Besides, I can help you with the casing as well. So just let me know. Best regards
$170 USD w 7 dni
4,7 (3 opinii)
2,5
2,5
Awatar Użytkownika
Hi! I'm an Electronic Engineer from Argentina. I have almost 5 years of experience working in the circuit design industry (both PCBs and integrated circuits) and I think I would come in handy for this project! I've worked writing code for uC on several companies and can totally help you out on this project! Looking forward to meeting you. Best regards and stay safe, Franco
$250 USD w 7 dni
4,8 (1 opinia)
1,2
1,2
Awatar Użytkownika
Dear Sir, I am Automation & Electrical Engineer and i have 12 years of experience in industry and i am ready to perform the job you are offering . Best Regards
$140 USD w 5 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
Expert in building embedded based devices . I can build this for you. Work experience of 20+ years in embedded .
$500 USD w 7 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
Hi, we can implement your project using microcontroller, we can generate pwm and can be adjustable as you want using switches, potiemoter,..... and produce up to 20amp. We can also display what you want. We can show you a video of working system but we want to know what your proximety sensor and hydraulic valve are. We need more information.
$222 USD w 10 dni
0,0 (0 opinii)
2,1
2,1

O kliencie

Flaga AUSTRALIA
Perth, Australia
0,0
0
Członek od lip 1, 2020

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