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I’m building a compact consumer-grade breath analyser and need a production-ready PCB that integrates the gas-sensing front end with Bluetooth connectivity and an onboard rechargeable-battery system. The PCB system consists of one main PCB and 3 smaller PCBs for individual gas sensors. The version 1 of the PCB has already been built (have the Gerber files etc which I will provide). What I need help with is further fine tuning of the PCB: 1. Changing LED to RGB 2. Power button addition 3. Coin vibrator addition 4. Replacing the MCU - ESP32C3 WROOM to ESP32C3 chip. 5. Integration with mechanical casing and fine tuning structural aspects (collaborating with dedicated casing guy for this) . 6. Miscellaneous small work to make it live ready. 7. Prototype production and testing 8. Firmware help (optional) If you’ve previously combined low-noise gas-sensor circuitry with wireless modules, I’d love to see a brief example. Let me know your preferred CAD tool and estimated turnaround, and we’ll get started. Would prefer someone based out of Gurugram, India.
Proje No: 40081487
12 teklifler
Son aktiviteden bu yana geçen zaman 1 ay önce
Konum: Gurugram, India
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12 freelancer bu proje için ortalama ₹24.713 INR teklif veriyor

Having acquired over 8 rich years of experience in PCB designing and prototyping, I am fully equipped to tackle your breath analyzer project. My extensive proficiencies span over various CAD tools (Eagle, Altium, KiCAD, EasyEDA), circuit design, and firmware development with a powerful focus on Bluetooth integration. In fact, I have an array of proven examples where I seamlessly amalgamated low-noise gas-sensor circuitry with wireless modules to achieve smooth communication. Crucially, upholding your project's unique requirements, I bring along the dexterity to effectuate the changes you're seeking –from integrating RGB LED lighting and a power button to incorporating a coin vibrator and migrating from the MCU ESP32C3 WROOM to ESP32C3 chip. The compactness and preciseness of my work aligns well with your need for a consumer-grade breath analyzer. Choosing me would mean securing a dedicated collaborator who will give due diligence to not just fine tune the PCB but also streamline its integration with the mechanical casing. This perfectly dovetails into my Fusion360 proficiency which will be paramount when delicately fine-tuning the structural aspects. You can always count on my availabilitytoo– 24/7 communication is something I take immense pride in. I look forward to turning your visions into tangible products.
₹25.000 INR 2 gün içinde
6,7
6,7

As an embedded systems and PCB design specialist, I can confidently tackle the modifications and improvements your breath analyzer project requires. My proficiency in circuit design, electronics, and embedded systems makes me an ideal candidate for upgrading the LED to RGB, incorporating a power button and coin vibrator, as you specified. Not only do I possess experience in gerber files, but I also have the necessary skill set to substitute the MCU per your request. On top of that, my ability with hardware engineering uniquely qualifies me for the collaboration with the dedicated casing team you have lined up. Seamless integration between the PCB and mechanical case is crucial for a successful consumer product, and my expertise can drive that synergy. Moreover, my familiarity with wireless modules and gas sensor integration lends itself perfectly to implementing Bluetooth connectivity in your device while maintaining optimal accuracy. My past projects include creating low-noise gas-sensor circuitry combined with wireless modules, giving you the peace of mind that your consumer-grade breath analyzer would be built upon proven solutions. Based locally out of Gurugram, India, I can offer quick turnarounds without any compromise on quality. Partnering with me means having a reliable and efficient professional by your side to bring your vision to life!
₹22.000 INR 3 gün içinde
6,3
6,3

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
₹25.000 INR 7 gün içinde
5,6
5,6

With over 8 years of experience in PCB design and electrical engineering, I am incredibly well-equipped to handle your project. Not only have I completed numerous PCB layouts in the past, but I also have a deep understanding of circuit design and electronics that will be critical for fine-tuning your breath analyzer. This includes prior work integrating gas-sensor circuitry with wireless modules, similar to what you require. I'm adept at using various CAD tools, but if you have any specific preferences, I'm more than willing to accommodate. As for the turnaround time, rest assured that my utmost priority is quality without compromising efficiency. And being based in Gurugram, we would face no logistical issues or lag time. Furthermore, I bring a unique blend of skills beyond just circuitry. In addition to being an electrical engineer, I'm proficient in graphic design and valuable with 3D modeling as well. This could potentially enrich our collaboration when it comes to integrating the PCB into the mechanical casing. Let's discuss your project in detail and begin transforming your existing Gerber files into a top-notch breathalyzer!
₹25.000 INR 1 gün içinde
5,5
5,5

Hi, I can take full ownership of this. I’m an Electronics Engineer and PCB Designer (No Middle Man), I have worked on consumer-grade embedded products that combine low-noise sensing, Bluetooth connectivity, and battery-powered systems. You already have a V1 board, which is exactly where focused engineering makes the difference between a prototype and a production-ready device. I’ll handle the full refinement scope: * Upgrade to RGB LED with proper drive and visibility control * Add power button and coin vibrator with reliable control * Migrate from ESP32-C3 WROOM to ESP32-C3 chip (power, RF, layout done correctly) * Mechanical and structural fine-tuning in coordination with your casing designer * Final cleanup to make the design **launch-ready** * **Prototype production, bring-up, and testing** * Optional firmware support if needed I work from existing Gerbers and schematics to preserve what already works and improve only what’s required. I take on limited projects, so I stay hands-on through validation, not just file delivery. I’m India-based and can coordinate smoothly on timelines. Visit my profile and click the chat button so we can review the V1 files, mechanical constraints, and lock the turnaround. Best, Abbas P.S. ESP32 module-to-chip migration and gas-sensor noise control are common failure points in devices like this. I’ll make sure both are handled the first time.
₹25.000 INR 7 gün içinde
6,0
6,0

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
₹15.000 INR 7 gün içinde
4,1
4,1

As an experienced electrical engineer and PCB designer, I bring a skill set and knowledge base that aligns perfectly with the requirements of your project. I have deep expertise in designing low-noise circuits for gas sensors while integrating wireless modules – just what your breath analyzer needs to be. I can assure you that I'm capable of giving your project the finishing touches it deserves, such as replacing the MCU – ESP32C3 WROOM with the ESP32C3 chip that you require. Moreover, I’m proficient in using CAD tools like- Altium Designer, Eagle and KiCAD which would facilitate smooth collaboration with your team. My team is also well-versed in other tasks like design evaluation & optimisation in terms of BOM cost , Schematics Analysts, DFX (Design for Assembly),DFM (Design For Manufacturing), 5 Why analysis etc
₹12.551 INR 1 gün içinde
3,8
3,8

MASTERS IN SOFTWARE ENGINEERING HELLO DEAR CLIENT With a wealth of experience in electrical engineering, I have developed a diverse set of skills that enable me to tackle complex PCB design projects proficiently. I have an innate understanding of signal processing and wireless communication modules, having integrated low-noise gas-sensor circuitry with wireless modules in past projects. For instance, there was this breathalyzer project where I developed a PCB that supported Bluetooth connectivity similar to yours but with different sensor architecture. My preferred CAD tool is Altium Designer or EagleCAD, whichever is more convenient for your workflow. As for the turnaround time on all your requirements, I anticipate to have the modified PCB designs ready for prototyping within X weeks.
₹25.000 INR 3 gün içinde
0,0
0,0

I can refine and finalize your consumer-grade breath analyser PCB for production using EasyEDA. This includes upgrading the LED to RGB, adding a power button and coin vibrator, replacing the ESP32-C3 WROOM module with the ESP32-C3 IC, and performing layout fine-tuning for manufacturability and enclosure fit. I will deliver updated schematics, PCB layouts, and complete manufacturing files ready for prototype and mass production. I can also assist with prototype testing and optional firmware support. The focus will be on low-noise sensor performance, reliable Bluetooth operation, and clean, assembly-ready design.
₹37.000 INR 7 gün içinde
0,0
0,0

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