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Mình đang phát triển một thiết bị IoT nhỏ mang tên SleepDome – hộp đựng điện thoại thông minh giúp cải thiện giấc ngủ. Cần tìm kỹ sư điện tử có thể làm prototype. YÊU CẦU KỸ THUẬT: -Có kinh nghiệm với ESP32 (hoặc Arduino) -Biết điều khiển servo motor bằng PWM -Biết kết nối module I2C (RTC DS3231) -Biết hàn mạch cơ bản CÔNG VIỆC: -Lắp ráp mạch theo sơ đồ (mình có sẵn) -Lập trình firmware ESP32 (logic đơn giản, có đặc tả chi tiết)
Project ID: 40536411
9 proposals
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Active 7 days ago
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9 freelancers are bidding on average $144 USD for this job

Hi I am an embedded systems engineer with over 16 years of experience building small IoT and consumer-grade electronic products from prototype to production. SleepDome is a good fit for me: ESP32/Arduino control, PWM servo movement, I2C RTC modules such as DS3231, basic circuit assembly, soldering, and firmware logic are all work I handle regularly. Since you already have the circuit diagram and detailed firmware specification, I can assemble the prototype according to your schematic, bring up the ESP32, test the servo timing and RTC communication, then deliver clean firmware with simple setup notes. I can also help review the design for reliability, power behavior, and future production improvements if needed. A few quick questions: do you already have all components available, and should the prototype be built physically by me or should I guide/verify your local assembly remotely? Please contact me to discuss details.
$220 USD in 7 days
7.6
7.6

Xin chào, Mình rất có kinh nghiệm trong thiết kế mạch điện tử và code. Mình cũng vừa về HCM. Hy vọng hợp tác cùng bạn.
$100 USD in 7 days
6.9
6.9

I have carefully read your project description for SleepDome. I understand you are developing a smart phone container designed to improve sleep quality, requiring precise control over servos and time-tracking. I have extensive experience working with ESP32, I2C modules (like the DS3231), and PWM-controlled servo motors, specifically in battery-powered systems where power efficiency is critical. I am well-versed in soldering and firmware development to ensure a stable and compact prototype. I would be happy to discuss the details further and help you bring SleepDome to life. Looking forward to hearing from you!
$200 USD in 7 days
5.4
5.4

As a seasoned professional with proficiency in Arduino, circuit design and electronics, with a strong PCB layout skill-set, I consider myself the perfect candidate for the development of your IoT device, SleepDome. My rich experience includes handling intricate tasks such as connecting I2C modules like the RTC DS3231, and controlling servo motors using PWM. With a penchant for attention-to-detail and efficient execution, I assure you that your specified technical requirements are well within my expertise. Furthermore, I bring to the table the ability to not only assemble circuits based on a schematic with precision but also to design innovative solutions should any complexities arise. This problem-solving approach is a crucial asset since prototyping often unravels unanticipated challenges. In addition to all these technical proficiencies, my knowledge of hàn mạch cơ bản is an assurance that you'll receive top-notch work with a sharp eye for every detail.
$35 USD in 1 day
4.1
4.1

Hey there, I'm Vishal Maharaj, a seasoned C Programming expert with 25 years of experience based in Perth, Australia. I am very keen on taking on your project. I understand that you are developing a small IoT device called SleepDome, aimed at improving sleep quality by housing a smartphone. I would approach this project by meticulously assembling the circuit based on the provided diagram and programming the ESP32 firmware as per the detailed specifications. Please feel free to initiate a chat to discuss this project further. Cheers, Vishal Maharaj
$250 USD in 5 days
1.7
1.7

Hello, I can help you build the SleepDome IoT prototype using ESP32/Arduino. I have hands-on experience with embedded systems, ESP32, Arduino, I2C communication, sensor/module interfacing, PWM control, firmware development, and basic hardware prototyping. Your requirement matches my skills because the project involves ESP32 firmware, servo motor control using PWM, RTC DS3231 communication using I2C, and assembling/testing a small IoT circuit. For this project, I can help with: 1. Reviewing your existing circuit diagram 2. ESP32/Arduino firmware development 3. Servo motor control using PWM 4. RTC DS3231 integration using I2C 5. Basic prototype wiring/soldering guidance 6. Testing logic and debugging 7. Final code with setup instructions Before starting, I would like to confirm one point: do you want the physical prototype to be built and shipped, or do you need firmware development and remote guidance based on your existing circuit? If the circuit diagram and firmware logic specification are ready, I can start quickly and deliver a clean working solution. I am keeping 10 days so there is enough time for requirement clarification, firmware development, testing, and final documentation.
$120 USD in 10 days
0.0
0.0

Hi, I have experience with ESP32, Arduino, PWM servo control, I2C module connectivity (DS3231), and firmware programming for IoT projects. I can assist in assembling a SleepDome prototype using a provided schematic and developing firmware according to your detailed specifications. I am open to discussing technical requirements and completion time further. Sincerely, Md Shamim
$30 USD in 1 day
0.0
0.0

Hello, Greetings from Innovaskill Technologies Pvt. Ltd. We are a Bangalore-based engineering company with over 14 years of experience in Industrial Automation, Robotics, PLC Programming, SCADA Development, Mechanical Design, Control Systems Engineering, and Embedded Systems Development. We are interested in supporting your SleepDome prototype development project. Our team has hands-on experience with ESP32/Arduino platforms, PWM-based servo motor control, I2C communication with RTC modules such as DS3231, electronic circuit assembly, soldering, firmware development, and prototype testing. We can handle: • Circuit assembly based on your schematic • ESP32 firmware development according to your specifications • Servo motor and RTC module integration • Testing, debugging, and prototype validation We can complete the project within 6 days, which is ahead of the requested 7-day timeline. Please share the circuit diagram and detailed functional requirements so we can review the scope and begin work immediately. We look forward to collaborating with you on this project. Best regards, Innovaskill Technologies Pvt. Ltd. Bangalore, India
$220 USD in 7 days
0.0
0.0

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