Clinical ECG ESP32 Development

@irsolutions

With over a decade of experience in web and mobile development, including expertise in embedded systems and firmware engineering, I understand the critical nature of developing a portable multi-lead ECG device like yours. The challenge of creating an original design with high-quality components and real-time data transmission is one I'm well-equipped to tackle. In the realm of healthcare technology, I have successfully delivered projects in the past that required intricate hardware design and firmware development. My experience in ECG and biomedical devices, coupled with my proficiency in PCB tools like Altium, positions me as a strong candidate for your project. I have previously worked on ESP32 and BLE applications in real-time scenarios, ensuring reliable connectivity and data integrity. To ensure the success of your project, I am prepared to dedicate my expertise to crafting a complete schematic design, PCB layout, Gerber files, and working firmware with detailed documentation. I am committed to meeting not only the technical requirements but also the fixed budget and timeline set forth. If you're looking for a seasoned professional to bring your clinical ECG ESP32 development project to life, feel free to reach out and let's discuss how we can move forward. I look forward to the opportunity to collaborate with you on this exciting endeavor.

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@macroenergy

With a substantial background in Digital Motor Control, Analog Design, Electronic Design, and much more, I believe my skillset matches perfectly with your project requirements for developing a portable multi-lead ECG device. My experience with low-noise analog circuits is especially vital in ensuring optimum performance in ECG signal design. Additionally, I have ample expertise with embedded systems (ESP32 and the like), PCB design tools (Altium, KiCad, and Eagle), and BLE communication – all of which are key elements to making your envisioned prototype a reality. Having worked on projects ranging from motor control to renewable energy, I am always driven by the challenge of innovating new solutions from scratch - just like you require for this ECG development project. Furthermore, I notice you highly prefer freelancers who can build end-to-end embedded products; I'm excited to say I already meet this standard. I respect the nature of this project as an important product development task that calls for solid experience. Thus, hiring me will ensure a dedicated approach to every aspect of the project. Let me help you deliver a top-notch multi-lead ECG device on time and within budget – all while providing satisfying documentation and complete ownership rights over the final output. Let's get started!

@engrusmanfaiz

I have strong experience in embedded hardware and firmware, including ESP32 with real-time data acquisition and BLE communication. I design multi-layer PCBs in Altium and KiCad with proper mixed-signal isolation and low-noise practices. For ECG, I will use a dedicated AFE (ADS1292/1298) with DRL, shielding, and high CMRR front-end design. Focus will be on clean analog layout, grounding strategy, and noise minimization. I have implemented stable BLE data streaming with optimized packet handling. Firmware will include real-time acquisition, transmission, and power management. Process: schematic → PCB → firmware → testing → iteration. I can support debugging and 1–2 hardware revisions. Ready to deliver a reliable prototype within 4–6 weeks.

@rbtech1984

Hello There!!! ★★★★ ( End-to-end ESP32 ECG device development with BLE & low-noise design ) ★★★★ Project understanding: I understand you need a fully original portable multi-lead ECG prototype with ESP32, BLE connectivity, low-noise analog circuits, PCB design, and firmware development. The project includes hardware, schematic, PCB, BOM, and prototype support over 4–6 weeks. ⚜ ECG circuit design with low-noise analog front-end ⚜ Component selection & ESP32 microcontroller integration ⚜ PCB schematic, layout, Gerber files, and BOM ⚜ Firmware for real-time ECG acquisition and BLE transmission ⚜ Power management with Li-ion battery & sleep mode ⚜ Prototype debugging & iterative support ⚜ Documentation and source code delivery I have experience with embedded ESP32 devices, BLE communication, and biomedical signal processing. I’ll design low-noise ECG circuits, develop firmware, and ensure a fully functional prototype with source files. Looking forward to discussing your specific requirements and starting the build. Warm Regards, Farhin B.

@hayteekeys

Hi, KINDLY READ THROUGH MY PROPOSAL THIS IS WHAT I WILL DO - Design the full low-noise analog front-end for multi-lead ECG using a suitable medical-grade ADC (e.g. ADS1292R or ADS1298) + ESP32 for processing and BLE transmission. - Create complete schematic and compact 4-layer PCB layout (Altium or KiCad) optimised for signal integrity, low noise, and wearable size. - Develop clean ESP32 firmware (ESP-IDF or Arduino) for real-time ECG acquisition, filtering, packetization, and BLE communication to a mobile app. - Include Li-ion battery management with charging and low-power modes. - Deliver all source files, Gerbers, BOM, and basic documentation. Support 1–2 revision cycles after prototype fabrication. SCREENING ANSWERS 1. Yes – I have designed two wearable ECG devices (single-lead and 3-lead) using ADS1292R + ESP32, including low-noise front-end and BLE streaming. 2. Primary tool: Altium Designer 24 (also proficient in KiCad 8). 3. Yes – multiple real-time BLE projects on ESP32 4. Low-noise approach: dedicated analog ground plane, short analog traces, star grounding, proper shielding of digital lines, high-CMRR instrumentation amps or integrated ADC, careful power supply decoupling, and guard rings around sensitive inputs. 5. I can share portfolio links privately after NDA (includes ECG front-end schematics and BLE firmware examples from previous medical wearable projects).

@tshibsamuel477

Hi there, I read your full ECG device brief and I can support the complete hardware + firmware development of your portable multi-lead ECG prototype using an ESP32 + BLE architecture with a low-noise analog front-end. I’m Samuel Tshibangu, a mechatronics engineer with strong experience in embedded systems, ESP32 firmware, mixed-signal PCB design, battery-powered devices, and real-time data acquisition. I’ve worked with precision sensor front-ends and can implement a clean ECG architecture using devices like ADS1292/ADS1298, proper grounding strategy, shielding, and filtering to ensure reliable biomedical-grade signal capture. Screening answers: Yes — I have worked on precision analog sensor front-end systems and ECG-class acquisition architectures using low-noise layout practices. I use Altium and KiCad. Yes — I’ve implemented ESP32 BLE streaming systems for real-time embedded applications. My approach includes dedicated analog ground strategy, right-leg drive considerations, input protection, driven reference routing, filtering stages, and strict separation between analog and RF/digital domains. I can share relevant mixed-signal and ESP32 embedded hardware examples upon request. Deliverables will include schematics, PCB layout + Gerbers, final BOM, ESP32 firmware for real-time acquisition + BLE transmission, and prototype bring-up support across iterations. Best regards, Samuel Tshibangu

@majeed219

With a solid academic and professional background, my team and I are the perfect fit for your ECG device project. As experienced engineers in both hardware and firmware development, we’ve worked on a range of comprehensive projects that align with your needs. Our expertise in embedded systems extends to the ESP32 MCU and BLE communication; crucial components of your project. We have successfully utilized these technologies in real-time applications previously, inherently understanding their functionality and intricacies. Additionally, this yarns with our specialty in designing low-noise analog circuits - vital for reliable ECG signal acquisition. Besides our technical capacities, we have a track record of delivering superior PCB designs using Altium, Eagle and KiCAD - assuring you high-quality schematics, layouts, Gerber files and value for your investment. Our successful work on industrial IoT projects attest to our ability to create end-to-end embedded products that stand out. We truly understand the magnitude of your undertaking so beacons us to invest quality time that evidently shows in our work. Let us bring our innovative and precision-guided skills into transforming your ECG vision!

@Ekarthaan

Hi dhruvilbhatt083, This is quite similar to a project I delivered last week, so I can jump straight into execution. Ready to start immediately. What lead configuration and performance targets should we meet (3/5/12 leads; per‑channel sample rate/resolution; bandwidth; input‑referred noise in uVrms; CMRR)? Do you require charge‑while‑measuring with patient isolation (IEC 60601‑1/‑2‑47 pre‑compliance), on‑device storage, and a defined BLE packet schema/throughput for the mobile app? Adopt an ADS1298/ADS1293‑class AFE with DRL, lead‑off, anti‑aliasing, and robust input protection; lay out split AGND/DGND with guard rings, driven shields, star returns, and high‑impedance routing to reach sub‑10 uVrms noise. Architect firmware with FreeRTOS: SPI‑DMA double buffering for deterministic sampling, fixed‑size BLE GATT packets with CRC/time tags and back‑pressure; add OTA and a fuel‑gauge‑based power policy for reliability. Action Plan: Phase 0—Requirements & architecture. Phase 1—AFE evaluation/simulation, component selection, schematic, BOM. Phase 2—4‑layer PCB layout, DFM/EMC review, Gerbers. Phase 3—Firmware MVP (ADC/DMA, BLE, power), unit tests. Phase 4—Prototype bring‑up; noise/CMRR and line/motion rejection tests; BLE throughput/power tuning. Phase 5—One iteration cycle, verification, documentation, source handoff. Best Regards, Sid

@Alif2710

Hi, nice to meet you, My name is Alif, My expertise is on PCB designer an also firmware engineer, all of my past project is PCB maker for mass production and also firmware development I will answer your question: 1. Have you worked on any ECG or biomedical device before? yes, I have past project for ventilator when COVID19 2. Which PCB tools do you use? Kicad 3. Have you worked with ESP32 + BLE in real-time applications? yes, of course 4. How would you approach low-noise ECG signal design? ====> we need to use battery for supply ====> we use high pass filter ====> we use analog precision device to read 12bit ADC ====> we use we need to isolate the power and data line 5. Can you share any similar past work or portfolio? ====> mass production custom PCB using ESP32 ====> mass production MPH to KMH on car using CANBUS (STM32F4) ====> mass production paint dispenser on local vactory to mix all color of the paint ====> mass production IOT for gas motoring and tracking for restaurant feel free to chat and discuss with me, I will be happy to help you Best Regards, Alif

@NEHABHAT92

As a seasoned Embedded Hardware & Firmware Engineer, I have spent over a decade working on complex projects like your portable multi-lead ECG device. My hands-on experience with low-noise analog circuits, BLE communication, and working in real-time signal data make me a perfect candidate to support your product development needs. I have extensive experience with ESP32 MCU and BLE integration into real-time applications - skills crucial for successful completion of your project. Moreover, my knowledge of high-performing PCB design tools like Altium, KiCad, and Eagle will ensure smooth functioning of the device. My involvement in end-to-end development of various embedded products and previous work in the biomedical sector further strengthens my suitability for this project. My comprehensive understanding of ECG ICs such as ADS1292/ADS1298 is a definite asset that would contribute positively to not only creating a working prototype but also achieving your desired quality output.

@abdurRafiqM

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

@murtuza90

Hi, I’ve carefully reviewed your requirement and understand you need an experienced embedded engineer to design and develop a complete ECG device from hardware and PCB to ESP32 firmware with BLE and real-time data handling. I can handle full hardware design (low-noise ECG front-end, component selection, power management), PCB design (schematics, layout, Gerber, BOM), and firmware (ESP32, BLE communication, real-time ECG acquisition, data transmission, battery management). I’ll also support debugging and iteration cycles. I have 10+ years of experience in embedded systems, PCB design, BLE, and real-time signal processing, including end-to-end product development. My team and I will personally pay close attention to your project. Timeline: 4–6 weeks. I’m confident I can deliver this successfully. Can we connect to discuss further? Best regards

@ssumitkumar7800

As an experienced embedded engineer with a strong background in electronic circuit design and PCB layout, I'm confident in my ability to deliver an outstanding product for your multi-lead ECG device. My proficiency in using industry-standard tools such as Altium, KiCad, and Eagle, coupled with my understanding of low-noise analog circuits, puts me at the forefront of this job. I have extensive experience with the ESP32 and BLE communication, having utilized them optimally for real-time applications during several previous projects. This aligns perfectly with your requirement for high-quality, reliable firmware development that would ensure seamless device-to-mobile app communication and real-time ECG data acquisition. Furthermore, while I do not possess hands-on experience specific to ECG or biomedical devices presently, my versatility across different technologies has allowed me to develop a unique skillset that translates effectively to new domains. This makes me well-equipped to approach challenges innovatively and constructively in any setting. Ultimately, I am excited to put my expert skills to work on your project and produce exceptional solutions that exceed your expectations!

@jakubf41

Hi there, I’m 100% confident I can deliver this project with high quality and meet all your requirements. I’m a senior embedded hardware/firmware engineer with 7+ years of experience in ESP32 systems, low-noise analog design, and BLE-based real-time devices, including biomedical signal acquisition. Approach - Design a low-noise ECG front-end (ADS1292 or equivalent) with proper filtering, grounding, and shielding - Integrate ESP32 + BLE for stable real-time data streaming - Implement Li-ion power system with clean regulation for analog/digital separation - Create production-ready PCB layout with strict EMI and signal integrity practices - Develop firmware for data acquisition, buffering, BLE transmission, and power management Experience • ECG/biomedical: Yes—AFE-based bio-signal designs (ECG/EMG class) • Tools: Altium & KiCad (DRC-clean, production-ready) • ESP32 + BLE: Extensive real-time implementations • Low-noise design: Differential routing, filtering, ground partitioning, shielding Deliverables • Schematic + PCB + Gerbers • Final BOM • Working ESP32 firmware (source included) • Debug and iteration support I deliver robust, production-grade designs, not hobby-level builds. Ready to start immediately and meet your 4–6 week prototype timeline. Best regard

@nadeemkhan7

Hello, I went through your project description and it seems like that I am a great fit for this job. I have an expert team with many years of experience in Electronics, Mobile App Development, Electrical Engineering, PCB Layout, Debugging, Circuit Design, Embedded Systems, Signal Processing, Prototyping, Biomedical Engineering. Lets connect in chat so that we discuss further. Thank You

@soniaer987

1. ECG/biomedical experience? Yes — bio-signal PCB design, ECG front-end, full signal chain from electrode to MCU. 2. PCB tools? KiCad and EasyEDA, Gerber + BOM ready for JLCPCB/PCBWay. 3. ESP32 + BLE real-time? Yes — RTOS-based acquisition, BLE streaming, sleep modes, battery monitoring. 4. Low-noise ECG approach? ADS1292R/1298 as AFE — built-in RLD drive, lead-off detection, 24-bit. PCB: split ground planes at star point, guard rings on input traces, TVS protection, LDO-only near analog domain. No switchers near the AFE. 5. Past work? Custom PCBs with analog front-ends, ESP32 BLE firmware, IoT pipelines — happy to share over chat. Deliverables: schematic, PCB layout, Gerbers, BOM, ESP32 firmware with BLE streaming, power management, and prototype debug support through 1-2 iterations. Full source code and ownership included. Ready within your 4-6 week timeline. What lead count are you targeting — 3, 6, or 12-lead?

@ThynkLoop

Hi, I can develop a complete portable multi-lead ECG device using ESP32 with BLE, covering hardware design, firmware development, and a working prototype. I have experience in embedded systems, PCB design, and real-time data acquisition. I will design a low-noise ECG front-end (using ADS1292 or similar), integrate it with ESP32, and implement reliable BLE communication for real-time data transfer to a mobile application. The system will include battery management and stable firmware for continuous operation. Scope: *ECG analog front-end design (low-noise) *ESP32 integration with BLE communication *Schematic and PCB design *Component selection and BOM *Firmware development (data acquisition, BLE transmission) *Power management (Li-ion battery + charging) *Prototype support and debugging Deliverables: *Schematic, PCB, Gerber files *Firmware source code (well-commented) *BOM (components list) *Working prototype support *Basic documentation Approach: *Design low-noise ECG circuit using ADS1292 or similar IC *Ensure proper grounding and signal integrity in PCB layout *Develop firmware for real-time ECG acquisition and BLE transmission *Implement power management and battery monitoring *Test and support iteration for stable performance I will deliver a reliable, efficient, and testable ECG prototype suitable for further product development.

@kaustubhbawa123

Hi, I am an IIT Grad, PMP Certified Professional, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Embedded Hardware & Firmware Engineer, I can develop a custom ECG circuit design using ESP32 microcontroller with BLE capabilities, incorporating proper noise reduction and filtering techniques to ensure accurate heart rate monitoring. Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect