
Imefungwa
Imechapishwa
Kulipwa wakati wa kufikishwa
I’m building a compact, handheld carbon-monoxide detector for use inside busy industrial plants and I need someone who can take the idea all the way from concept to production files. Your job is to engineer the complete electronics stack—sensor interface, signal-conditioning, microcontroller logic, power management, audible/visual alarms—and turn it into a manufacturable PCB. Core requirements • Target gas: Carbon Monoxide only (expandability to other electrochemical sensors is a plus but not mandatory now). • Operating environment: indoor industrial spaces, so the design must tolerate vibration, electrical noise and a wide temperature / humidity range. • Compliance path: the hardware must be laid out so it can pass ATEX, UL and CE certification. That means intrinsic-safety zoning, clearances/creepages, EMC-friendly routing and proper component derating need to be baked in from day one. Deliverables 1. Complete schematic (native Altium, KiCad or Eagle plus PDF). 2. Clean, two-to-four-layer PCB layout with Gerbers, drill files and assembly drawings. 3. Bill of Materials with industrial-grade parts, supplier links and life-cycle notes. 4. Firmware source (if you choose a microcontroller) that handles sensor reading, temperature compensation, calibration routine, alarm logic and battery management. 5. Brief design dossier explaining how each certification requirement has been addressed, ready for submission to a notified body. 6. Optional but welcome: a 3D step file of the board for enclosure fit-checking and any suggestions on enclosure materials. Acceptance criteria • Bench test data showing CO measurement accuracy within ±5 ppm across 0–300 ppm. • Power draw low enough for at least 24 h operation on a single Li-ion cell. • All PCB files import and generate DRC without errors. If you’ve already taken gas-sensing products through ATEX/UL/CE, let me know—your experience will help us move faster.
Kitambulisho cha mradi: 40241006
8 mapendekezo
Mradi wa mbali
Inatumika 19 days ago
Weka bajeti yako na muda uliopangwa
Pata malipo kwa kazi yako
Eleza pendekezo lako
Ni bure kujiandikisha na kutoa zabuni kwa kazi
8 wafanyakazi huru wana zabuni kwa wastani ₹24,969 INR kwa kazi hii

As a seasoned Electrical Engineer, I believe I'm a prime candidate to navigate your demands from concept to market-ready product, skills which my Master's in Embedded Systems has enhanced. My expertise is multi-faceted, including firmware development and PCB design while specializing in IoT product engineering. A project of this magnitude aligns perfectly with my core skills, making me the best person to transform your handheld CO detector idea into a cutting-edge reality. I am particularly proficient in managing the complex considerations that are vital for your project - vibration tolerance; wide temperature and humidity range adaptation; and EMC-friendly routing among others. Additionally, if expandability to additional electrochemical sensors becomes necessary, I am more than capable of handling the inclusion without sacrificing quality or time. Furthermore, my penchant for incorporating proper component derating will ensure your hardware easily meets ATEX, UL, and CE certification standards.
₹45,000 INR ndani ya siku 7
8.1
8.1

Hello Sir i am computer engineer and certified industrial expert and i am already made carbon analysis projects before , so may we can talk , thanks
₹37,000 INR ndani ya siku 7
6.0
6.0

I can design an Industrial Portable CO Detector and engineer the complete electronics stack—sensor interface, signal-conditioning, micro controller logic, power management, audible/visual alarms—and turn it into a manufacturable PCB. Hi, I am Zain, an industry professional. I can easily handle the task including • Embedded Systems • Circuit Design • Power Electronics / Control System Engineering • PCB Design • KiCAD / Altium • Mixed Signal PCB Designs / High Frequency PCB Designs • Firmware Development • C / C++ • Simulations etc. Lets chat. Best regards
₹18,000 INR ndani ya siku 20
4.0
4.0

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist
₹12,500 INR ndani ya siku 7
2.4
2.4

Hi, I can design your handheld CO detector from concept to production, including electrochemical CO sensor front-end, low-noise signal conditioning, MCU-based measurement + temperature compensation, calibration workflow, alarm logic (buzzer + high-visibility LEDs), and Li-ion battery power management for 24h+ runtime. I will deliver a clean 2–4 layer PCB with EMC-aware layout, proper creepage/clearance rules, component derating, and intrinsic-safety oriented architecture to support ATEX/UL/CE certification path. You will receive full schematic + PCB source files (KiCad/Altium), Gerbers, drill, BOM with lifecycle notes, pick-place, assembly drawings, firmware source, and a certification-ready design dossier. I’ve worked on industrial sensor/embedded PCB designs and can ensure the board passes DRC and is manufacturing-ready.
₹20,000 INR ndani ya siku 9
1.5
1.5

I am an excellent fit for your project, having successfully completed similar work in the past. I understand the need for a clean, professional, and user-friendly design that is seamless and integrated, especially one that meets strict industrial compliance standards like ATEX, UL, and CE. I specialize in electronics engineering with expertise in sensor interfaces, signal conditioning, microcontroller firmware, and power management. Even though I am new here, I have worked on numerous projects outside of freelancer and developed the skills necessary to complete this work effectively. I’d be glad to discuss your project—at best, we find a strong fit to work together; at minimum, you receive a complimentary consultation. Regards, Keagan.
₹17,250 INR ndani ya siku 30
0.0
0.0

Hi Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI), delivering reliable, industrial-grade Electronic Solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development (C & Python Programming), Hardware Design, Prototyping, and Scalable Mass Production with a focus on quality and cost efficiency. Core Expertise: • Microcontroller : PIC, STM32, ESP Family, AVR, Nuvoton, XBee. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, Keil, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code. • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer, KiCad, with efficient power design, isolation handling, and EMI/EMC compliance. • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485, RS-232. • RF Modules: LoRa, nRF Series, XBee, Laird RF Modules. Project Capabilities: Power Monitoring & Energy Management Units, CNC Controllers, BLDC/DC Motor Control, IoT-based Agriculture, Smart Home & Industrial Automation, Inverters, Stabilizers, and Gimbal-based Videography Control Systems. We have already transformed the concept into a successful Electronic solution for multiple clients. To help you better visualise our expertise, we would be glad to share a brief reference video. Let’s schedule a meeting to discuss further. Best Regards, Team OSTronik India
₹25,000 INR ndani ya siku 7
0.0
0.0

Hi Thank you for reading. I would love to take on the project and develop the entire solution for you keeping the best practices in mind for the compliances. The said product will be robust and rugged in performance while maintaining a long battery life through intelligent power management. Any other details we can work it in once started. Best regards Soumitra
₹25,000 INR ndani ya siku 7
0.0
0.0

Dhanbad, India
Mwanachama tangu Feb 18, 2026
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