20-Channel Pressure Sensor DAQ Prototype (Raspberry Pi Pico + Python GUI)

@danish2051

I am an Embedded Systems and PCB Design Engineer with experience in Altium Designer, Kicad, Easyeda, Protious and custom hardware development. I can design your PCB from schematic to production-ready files, including: • Schematic Design • PCB Layout • Component Selection • Design Rule Check (DRC) • Gerber Generation • BOM Preparation • Manufacturing Support (JLCPCB, PCBWay, etc.) I have experience with ESP32, STM32, sensor interfaces, power supplies, RF modules, Ethernet, and industrial electronics. Please share the project requirements, schematic (if available), board dimensions, and any special requirements. I can start immediately. Looking forward to working with you.

@rfandelectronics

As an Indian-based team of RF & Electronics Engineers, our specialization in high-frequency systems and design is directly aligns with the intricate nature of this project. With expertise in circuit design, electronics prototyping, and handling microcontrollers (including Arduino and ESP), we have a robust background in A to Z of project cycle and specialize in delivering highly optimized solutions for real-world applications. The requirements you mention, from circuit design to breadboard/perfboard layout and physical prototype assembly, are all well within our skill set. We also have ample experience in developing Python-based GUI applications and personally dabbled with PyQt6 /PyQtGraph libraries - appropriate for real-time visualization and SQLite storage your project demands. In addition to fulfilling the technical needs of the project, we are reliable partners who understand the importance of comprehensive communication and timely delivery. Our Indian base also ensures humble affordability without compromising quality. Moreover, since we actively contribute to academic research and postgraduate studies in RF and Microwave fields, including paper preparation and technical modelling with applications such as MATLAB

@NEHABHAT92

As a software developer with over 9 years of experience, I have ample skills and experience to take on your 20-channel pressure sensor DAQ prototype project. With strong proficiency in Python-developed applications and based in India, I fit the bill perfectly. My previous projects have involved creating user-friendly, cross-platform Python scripts and using pyserial and sqlite3 among other tools, ideal for your DAQ setup. I am also well-versed with IoT devices like Raspberry Pi Pico and ESP32-S3 commonly used for such tasks. Combining that knowledge with my background in E-commerce where I integrated numerous complex devices, I can effectively design your circuit layout, carry out firmware sampling, as well as build the physical prototype. Moreover, my ability to collaborate effectively and tailored approach to each customer's needs ensures not only timely completion of projects but also their overall success. By entrusting me with this project, you are not only getting an experienced professional but a reliable partner who is committed towards turning your ideas into reality.

@alfatrade2

20 sensors at 0.5–4.5 V through two CD74HC4067s on a single Pico ADC — the main problem here isn't the code, it's noise and settling time after channel switching. That's tolerable for a slowly rising pressure signal, but the RP2040's 12 bits give a step of about 1.2 mV at the input, and filtering/smoothing is needed. I've written firmware for microcontrollers with sensors and actuators in C/C++ (including RP2040). I won't be able to do the physical assembly and wiring of the 3-meter cables remotely. What polling rate per channel is required?

@abhilashr53

I can deliver '20-Channel Pressure Sensor DAQ Prototype (Raspberry Pi Pico + Python GUI)' end to end — clean architecture, tests, and deployment. I'll start with a short plan, share progress daily, and hand over production-ready code. Could you confirm your timeline and must-have features so I can lock the scope?

@shyam351999

Hi, I am excited about the opportunity to develop a 20-channel pressure sensor DAQ prototype using Raspberry Pi Pico and a Python GUI. With over three years of experience in embedded systems and automation, I am well-equipped to deliver a robust solution tailored to your needs. My approach will include: - Designing a reliable data acquisition system to interface with multiple pressure sensors. - Developing a user-friendly Python GUI for real-time data visualization and analysis. - Implementing efficient data logging and processing algorithms to ensure accurate readings. - Conducting thorough testing and validation to guarantee system performance and reliability. I understand the importance of precision in instrumentation projects and will focus on creating a seamless integration between hardware and software components. My background in automation and system reliability will ensure that the prototype is not only functional but also scalable for future enhancements. I look forward to collaborating with you on this innovative project. Best regards, Shyam Prajapati

@Wonitaf

Hi there, I recently wrapped up a similar project where I designed a multi-channel DAQ system using the Raspberry Pi Pico, so I’m confident I can meet your expectations for this 20-channel pressure sensor prototype. My extensive experience with microcontrollers and data acquisition systems ensures I’ll deliver exactly what you need. I noticed you’re looking for a clean, professional, and user-friendly setup that streams data in real-time, which perfectly aligns with my skills. The integration of Python for visualization and SQLite for logging is a process I’ve successfully managed before. I specialize in embedded systems and circuit design, and I thrive on turning complex ideas into seamless prototypes. I’m committed to speedy communication and a fast turnaround, making sure your project runs smoothly. Let me know if you are available for a quick chat! Regards, Wonita

@ayuscoder

Hello, I can develop and test your complete 20-channel pressure DAQ prototype in India, covering RP2040/ESP32-S3 firmware, multiplexed ADC interfacing, sensor integration, shielded cabling, and physical assembly. I can also build the Python application using PyQt6/PyQtGraph, pyserial, and SQLite for real-time plotting and reliable timestamped logging. I’m comfortable with embedded hardware prototyping, instrumentation, serial communication, and end-to-end bench testing, including a video demonstration and delivery of the completed prototype. Phone: +91 88264-50850

@drishu11

We would be happy to develop and deliver the complete 20-channel pressure DAQ prototype in India. We have extensive experience in embedded systems, instrumentation, automation hardware, sensor interfacing, Raspberry Pi/ESP32-class controllers, analog acquisition, PCB/perfboard prototyping, Python applications, real-time data logging, and laboratory test systems. We can design the acquisition electronics around RP2040 or ESP32-S3, interface the 20 ratiometric pressure sensors through suitable multiplexing/ADC hardware, prepare the 3 m shielded sensor harnesses and labeled enclosure, and assemble the complete bench-ready system. We can also develop the firmware for 1 Hz multi-channel sampling and structured USB serial output, along with a cross-platform Python GUI using PyQt6/PyQtGraph, pyserial, and SQLite for live plotting and timestamped storage on Windows 10 and Linux Mint. The deliverables can include the complete physical prototype, circuit/wiring documentation, source code, firmware, Python application, database schema, setup instructions, and a functional bench-test/video demonstration before dispatch. We are comfortable handling both the hardware and software portions as one integrated instrumentation project and can support final testing and physical delivery within India.

@SRIRAMANAND

Hi, I’m an Embedded Systems / Automation Engineer based in India, and this project is a great match for my experience. I’ve worked on multiple embedded and IoT projects using ESP32, Raspberry Pi, Arduino, sensors, ADCs, and hardware interfaces, including firmware development, sensor data acquisition, and real-time monitoring systems. For your 20-channel pressure DAQ, I can handle the complete prototype — analog multiplexing/ADC design, circuit assembly, RP2040/ESP32 firmware, USB serial communication, timestamped data acquisition, and hardware testing. I also have strong experience with Python, real-time dashboards, PyQt, PyQtGraph, serial communication, SQLite, and data visualization. I can develop a cross-platform application that displays all 20 pressure channels in real time and simultaneously logs the readings into SQLite for later analysis. I’m comfortable working across both hardware and software, which helps when troubleshooting sensor noise, ADC readings, wiring, communication, or timing issues during prototyping. I can also handle the physical prototype assembly, bench testing, and demonstration video, followed by delivery of the completed unit. I’d be glad to discuss the sensor specifications and finalize the most reliable acquisition architecture for the 20 channels. Thanks, Sriram

@pandaymano8

As an experienced embedded systems engineer, I believe I'm the perfect fit for your 20-channel pressure sensor DAQ prototype project. Having worked on several similar projects requiring complex multiplexing and strong data acquisition and logging capabilities, I'm well-versed in what it takes to deliver a successful solution, exactly as you've outlined. Notably, I have extensive experience working with microcontrollers like Raspberry Pi and ESP32-S3 that are essential to your project’s success. I have built custom circuits, designed firmware capable of sampling and streaming large data sets smoothly and created Python-based GUI applications for real-time visualization as per desired graphical output. In India, where I operate out of, instrumentation work is in high demand due to its complexity - this is the environment that has honed my skills over the years. With me on board your project, you'll enjoy not only my technical know-how but also my commitment to quality and open lines of communication. Let's collaborate to create a prototype that meets all your specifications and delivers precise results for your gas pressure monitoring needs!

@hakan1022

Hi, there I have worked with sensor-driven embedded systems where reliable multi-channel acquisition, timestamped telemetry, and a Python monitoring layer were required for real-time analysis and logging. For this prototype, I am planning a clean RP2040-based acquisition architecture with appropriate signal conditioning, stable 5V sensor interfacing, channel scanning, calibration handling, and 1 Hz timestamped serial output. The Python side can use PyQt6/PyQtGraph for 20 simultaneous traces, pyserial for robust streaming, and SQLite for structured session logging, with reconnect/error handling and CSV export if useful. I would also include channel labeling, basic validation, bench testing, and a reproducible firmware/GUI setup for Windows 10 and Linux Mint. If I use my previous experience, your project will likely be completed successfully. Hope to discuss this in detail. Through detailed discussion, I think I can find the better solution to finish your project successfully. Thank you

@maheshm7292

Hi, I'm an embedded/electrical engineer based in Pune. I can build, test and deliver this 20-channel DAQ. What I'll do: - Hardware: ESP32-S3 (USB-C, bus-powered) + 3× MCP3208 12-bit ADCs referenced to the sensors' 5 V, so readings stay accurate when USB voltage drifts. Per-channel filtering, input protection and open-sensor detection. - Enclosure: labeled terminals CH1–CH20, cable glands, status LEDs, USB-C panel port. 20 × 3 m shielded harnesses labeled at both ends; sensors sealed in G1/4 tapped caps. - Firmware: 20 channels at 1 Hz, averaged to reject mains noise, sent as timestamped lines with fault flags. - Python app: PyQt6 + PyQtGraph, 20 live traces, SQLite logging; tested on Windows 10 and Linux Mint. - Testing: each channel checked against a reference gauge, video demo, then courier delivery. Timeline: 2–3 weeks. Price covers all hardware, source code, testing and delivery. Background: - Former Embedded Systems Design Engineer at TMA Drive Solutions. R&D in motor drives, PCB design, EMI/EMC filters and production QC. Earlier, EV powertrain electrical design at Shstratva Tech. - Measurement builds: ESP32 solar power monitor (logging + Wi-Fi dashboard), ESP32 EV dashboard (CAN, GPS, voltage sensing), ADS1299 EEG acquisition on Raspberry Pi 5, sensor data collection on Formula Bharat/SUPRA race cars. - BE Electrical Engineering (PVG COET, Pune). Founder of Mark One Engineering Labs.

@bhavnaramsing

I recently helped a business turn a similar idea into a clean, professional solution that was built around what they actually needed. I can help you achieve the same, with a solution that is reliable, user-friendly and built around your goals. I noticed you specifically need real-time data logging and visualization for a 20-channel pressure DAQ setup. That’s an important part of getting this project right, and it’s something I can confidently handle. My expertise includes embedded systems design, Python programming for data visualization, and circuit prototyping. We also have 75+ 5-star reviews on similar projects and rank in the top 1% among 75 million users! I already have a few ideas for your project. Message me and I’ll share how I’d approach it. Regards, bhavnaramsing

@wataakal

I recently helped a client turn their ideas into a clean, professional device prototype that streamlined their data collection and improved usability. I can do the same for your 20-channel pressure sensor DAQ project. With experience in embedded systems engineering and instrumentation, I will design a robust solution using the Raspberry Pi Pico, ensuring seamless data acquisition and real-time visualization through a Python GUI. I’ll handle circuit design, firmware development, and the creation of a user-friendly application that logs data into SQLite. Throughout the process, I will keep you updated with progress and any testing outcomes to ensure the prototype meets your needs. With 75+ 5-star reviews and a top 1% ranking among 75 million users, you can trust that I know how to deliver high-quality results. If you’re looking for someone who can transform your requirements into a polished final product, I’d be happy to work with you. Regards, Wataaka

@salvatorec56

Hi — I'm Salvatore, a Computer Engineering graduate (Master's). I can deliver this myself end-to-end on a desk/code workflow (clean code, clear docs, and quick revisions). I already deliver similar Python/JS/automation and structured writing work. I'll confirm scope in chat, share a short plan, then deliver on time. Happy to start as soon as awarded.

@rupinvachhani123

Hello, I am interested in developing your 20-Channel Pressure Sensor DAQ Prototype using Raspberry Pi Pico and Python GUI. I have hands-on experience with embedded systems, multi-channel ADC/data acquisition, sensor interfacing, Python GUI development, real-time visualization, and data logging. I have worked on ADC-based DAQ systems where reliable sampling, timestamping, and Python-based analysis are important. I can deliver: Raspberry Pi Pico firmware for 20-channel acquisition Interface for 20 × 0.5–4.5 V pressure sensors Multiplexer/ADC-based 20-channel acquisition 1 Hz sampling per channel USB serial communication and timestamped data Python 3 PyQt6/PyQtGraph GUI 20-channel live pressure graphs CSV/SQLite data logging Pressure scaling/calibration Circuit/wiring documentation Prototype assembly and bench testing Source code, documentation and demonstration video I will keep the acquisition, GUI, and data logging modules properly separated so the system can be easily extended later.

@udbheda

Hi there, I am an embedded systems engineer based in Gujarat, India, and the founder of Bhavya Xontech Pvt. Ltd. Your 20-channel pressure DAQ project aligns perfectly with my daily work in microcontroller hardware, sensor multiplexing, and Python visualization. Why I am a great fit: Hardware Expertise: I regularly design multi-sensor ESP32 systems, including automated irrigation networks and smart traffic controllers. Python GUI & Logging: I have built real-time Python desktop apps and data dashboards. Creating a cross-platform PyQt6 GUI for lag-free plotting of 20 live curves with SQLite3 logging is right in my wheelhouse. Prototyping & Assembly: My lab is fully equipped for PCB assembly, enclosure wiring, terminal blocks, and building clean, physical prototypes. My Approach: Hardware: I recommend using the ESP32-S3 with MCP3208 (dedicated external 12-bit SPI ADCs) over simple multiplexers to ensure highly accurate, linear readings from your 5V transducers, along with proper 5V-3.3V level shifting. Firmware: Hardware timers will ensure strict 1 Hz sampling across all channels. Delivery: I will provide a functional bench-test video showing live pressure readings before securely shipping the physical prototype from India. Let's connect to discuss sensor datasheets and enclosure preferences. Best regards, Uday Bheda Bhavya Xontech Pvt. Ltd.

@AliaMatte

I am working on Pressure sensors array but using LabVIEW, However earlier I had an experience of working with ESP and RaspberryPi. probably it won't take more than 2 weeks