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Bluetooth Controller

min $50 USD / hour

Closed
Posted about 3 years ago

min $50 USD / hour

I need to build a Bluetooth Controller to work with an already created app. The controller will need to control the operation of a coil in a solenoid. Would ideally like to hire either a team or someone who has experience in this type of device development as the timeline for a working prototype for testing is short. Below is the list of expectations: 1. Frequency adjustability, via backend programming alternations, 140-2500Hz, with Dither setting also active. 2. Current regulation for coil from 0-100 mA 3. Trigger for current regulation to be +12 vdc, will trigger when controller sees +12 vdc and ramps/delay start when 12 vdc drops to <+1.5 vdc 4. Start delay ramp for coil current regulation from 0-.100 seconds 5. Ability for control circuit to hold coil at max mA for 15 seconds 6. Current control to cycle a ramp from max Ma to 0 Ma over a timetable of 2-3 seconds 7. Controller be able to communicate with app via Bluetooth, builder may have to communicate with app developer. 8. App be able to change current decay ramp and delay ramp 9. Settings from app be saved in controller so that app not need to be connected for controller to execute functions/settings for valve/solenoid. 10. Controller needs to have a Deutsch 12 pin DT series connector, Molex 93445-6212, Keying Option A 11. Controller will have red LED to indicate power and another color LED to indicate Bluetooth connectivity 12. Controller will have a durable glass resin type case with logo and some type of easily mountable tab, this can be done later. 13. Functional and tested prototype by May 1, 2021
Project ID: 28751318

About the project

23 proposals
Remote project
Active 3 yrs ago

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23 freelancers are bidding on average $51 USD/hour for this job
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Best Bluetooth Design Expert at your doorstep! Dear Client, We can build a Bluetooth Controller to work with an already created app. We couldn’t stop ourselves from bidding after going through the description as they are an exact match with our skill set and experience. We have experience in Bluetooth Controller based PCB design and know all the intricacies required to get the job done with perfection. With more than 15 Years of experience in PCB Design and Circuit Design in Altium, We can ensure you best quality work and before time delivery. Following is a brief list of expertise that we are 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 7. Bluetooth Controller, LED, Molex 93445-6212, 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 we would formulate a plan of action of how we shall take this project to the horizons of success. Regards Avi Tech Experts Quality is never an Accident
$50 USD in 40 days
5.0 (59 reviews)
7.8
7.8
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Hello I am experienced electronics engineer with more than 14 years of experience in product development . I have designed a number of products starting from scratch and mass produce able designs including circuit design , Proof of Concept , PCB design and firmware development. I have read the details and would like to discuss it further. Please get in touch to discuss it further Regards Ali
$50 USD in 40 days
4.8 (219 reviews)
7.9
7.9
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Hello v8Billy,   We have 20 years of strong experience in Electronics, Mobile App Development, Microcontroller, Bluetooth Low Energy (BLE), Rapid Prototyping, as a result, we can successfully complete this project.   Please, review our profile here: https://www.freelancer.com/u/tangramua Here detailed information about our company, our portfolio, and the client's recent reviews.   Also, we wanted to personally discuss questions about your project, which helps us to give you the right estimation.   Best regards, Tangram Canada Inc.  
$55 USD in 5 days
4.8 (14 reviews)
6.9
6.9
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Dear client, Nice to meet you. I have been working as a firmware and hardware designer for 6+ years. I had developed several similar projects using the various microcontrollers such as STM32F1/2/3/4/7xx, PIC16/18xx, Wifi(ESP32, ESP8266), Zigbee, BLE/Bluetooth, MSP430, Atmega, and the various Sensors & LCDs. I can start soon and finish within the deadline you need. And I have many experiences of schematic and multilayer(2~8 layer) PCB design with various BGA core(Cortex series, A series, FPGA ...), DDR3, DDR4, Ethernet,eMMC, high speed digital display interfaces,WiFi, 4G.. I am sure I can complete it on time with high quality. In that sense, I think I am suitable persons you are looking for. If you give me a chance to interview, I'll explain in more detail and I'll do my best for you. I will work hard and hard for complete this task successfully. Best regards.
$50 USD in 40 days
4.8 (7 reviews)
5.4
5.4
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Dear Client, I can control the operation of a coil in a solenoid as per your requirements. I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in Bluetooth based PCB design and could design it for you as per your requirements. I am having more than 15 years of experience in PCB Design, Circuit Design, Circuit simulation, IOT products development and building electronic products. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wifi, NFC, LoRa etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. LED, Bluetooth, Controller, Trigger After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? 4. What are the standards that the product would be complying to? 5. What are the user protections required for this project? Please try to answer these questions based on which I would be providing free of cost consultation. I am new to this site but I am an expert in electronics product development. Please message me so that I can formulate a success plan for this project. Waiting for your reply, Regards Hari Mohan Engineering for one is a magic for others
$50 USD in 40 days
4.3 (6 reviews)
6.1
6.1
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Hello there. I am an expert embedded software developer. I have done many projects controlling different types of microcontrollers also using different types of Bluetooth modules. Kindly check my profile and you will find some of these projects. I have read each single line of your requirements and I have some questions. Kindly check my profile and contact me for more details.
$50 USD in 40 days
5.0 (29 reviews)
4.9
4.9
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Dear Client I am excited to submit this proposal. I have rich experience over than 10 years in the embedded system. I have developed a lot of the products during past 10 years I think I can help you on your project. I'll look forward to your reply. Best regards.
$50 USD in 40 days
4.8 (6 reviews)
4.9
4.9
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Hi, I have gone through your requirement and understood every aspect of them. I will incorporate all the points mentioned in the job description. When you want this project to be completed? I will offer you seamless work with optimum quality. Let's talk and get it done. Thanks and regards, Vishal G
$50 USD in 30 days
3.8 (11 reviews)
5.5
5.5
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Hello, As a professional electrical engineer with over 10 years of experience, I am very confident about your project because I have developed many kinds of Bluetooth/BLE controllers to be controlled by mobile apps (iOS and Android app) using lots of Bluetooth/BLE modules and chips such as Nordic nRF52832, ESP32, HM-10, and CC2640. I have rich experience with the development of electronic consumer devices with solenoids and pumps using microcontrollers capable of control by mobile apps via BLE/Bluetooth. In those projects, I was responsible for circuit design, PCB design, firmware programming, manufacturing/testing, and enclosure design. I am familiar with the development from Proof of Concept design to massive scaling product design using several PCB manufacturers providing good services at high quality, low cost, and quick turnaround. So I am sure that your project is a good fit for my skills and experience. I will deliver the best results you desire within a short period of time successfully. Looking forward to discussing the project in more detail. Best regards, David
$50 USD in 40 days
5.0 (1 review)
2.0
2.0
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hi i have 13 years experience in software programing and develop embedded system with c++ please visit my profile show you my knowledge i need more details in chat thank you
$50 USD in 40 days
0.0 (0 reviews)
0.0
0.0

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Evergreen, United States
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