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I am looking for an experienced electronics engineer/PCB designer to create a custom carrier board (or fully integrated PCB) for a smart beekeeping monitoring system. The device will monitor two beehives simultaneously and transmit data via LoRaWAN to the "Beep" platform. Project Scope: The goal is to design a PCB that handles power management and interfaces with multiple sensors for two separate hives. The device will be powered by a Solar panel and a Li-Ion/LiFePO4 battery. Core Components & Requirements: Microcontroller & Connectivity: Based on ESP32 with LoRaWAN capabilities. Preference: You can either design around a module (like ESP32-WROOM + RFM95) OR design a carrier board for a dev-board like the Heltec WiFi LoRa 32 V3 (to simplify assembly). Please specify your recommendation in your proposal. Sensors (Interfaces needed for 2 Hives): Weight: 2x Interfaces for Load Cells (4-wire). The PCB must integrate 2x HX711 ADC chips directly (or provide headers for breakout boards, though integrated chips are preferred for reliability). Audio: 2x Interfaces for external I2S MEMS Microphones (e.g., INMP441). Connectors must be pin-compatible. Temperature: Interface for 2x DS18B20 sensors (OneWire). Power Management: Input for 6V Solar Panel. Battery management for 18650 Li-Ion or LiFePO4. Efficient charging IC (e.g., CN3065 or similar appropriate for solar). Crucial: Ultra-low power consumption optimization (deep sleep focus). Connectors: Robust connectors for external sensors (Screw terminals or JST-XH preferred) to withstand outdoor vibrations. Deliverables: KiCad (preferred) or EasyEDA project files. Schematics (PDF). Gerber Files for manufacturing. BOM (Bill of Materials) with LCSC part numbers (optimized for JLCPCB assembly service). CPL/Pick and Place files for assembly. Ideal Candidate: Experience with ESP32 and LoRaWAN hardware design. Experience with low-noise audio routing (important for the FFT analysis on the ESP32). Experience designing for JLCPCB assembly (using parts available in their library).
Project ID: 40212537
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As an experienced electronics engineer proficient in Circuit Design, Electrical Engineering, Electronics, Embedded Systems and PCB Layout with a particular focus on Power Electronics and Renewable Energy, I believe I am the ideal candidate for this project. My extensive background in Digital Motor Control, especially those relating to low-power applications and control algorithms using the DSP (TMS320), will prove invaluable in creating a highly efficient system for your smart beehive monitoring project. Furthermore, my experience working with ESP32 and LoRaWAN hardware designs aligns directly with the core requirements of the project. Not only am I familiar with ESP32-based boards such as Heltec WiFi LoRa 32 V3, but I am also well-versed in designing custom carrier boards for such systems. This ensures that your beehives can be accurately monitored and their data successfully transmitted to the "Beep" platform through LoRaWAN connection. Additionally, my expertise in low-noise audio routing is vital for proper analysis of audio data collected from MEMS microphones which will enhance the quality of your FFT analysis on the ESP32. Moreover, my existing experience designing for JLCPCB assembly will save valuable time by utilizing parts available in their library and thereby optimizing the BOM for you. In conclusion, my skills and experiences are perfectly aligned with what's required to successfully design and deliver your smart beekeeping monitoring system.
$85 USD in 7 days
7.4
7.4
20 freelancers are bidding on average $114 USD for this job

Hello, With over a decade's worth of experience in electrical and electronics engineering, I can confidently say that I'm the right candidate to tackle your smart beehive monitoring system project. My skills include PCB design and development which is pivotal for a sophisticated design like yours. Having worked extensively with ESP32 and LoRaWAN hardware, I have an in-depth understanding of the architecture and parameters involved in such designs. I would recommend going for the Heltec WiFi LoRa 32 V3 for the flexibility it offers during assembly. My proficiency with power supply circuits, low-noise audio routing and RF PCB layouts can be leveraged to ensure optimal performance, power efficiency as well as reliable signal recording and transmission. Additionally, my experience with JLCPCB's library will translate into increased productivity and efficiency in terms of component selection and procurement. In conclusion, as an exceptionally meticulous engineer with a flair for transforming ideas into tangible products, I'm confident that my skillset suits your project impeccably well. Thanks!
$30 USD in 6 days
6.7
6.7

I am an experienced electronics design engineer and PCB designer with strong expertise in ESP32-based systems, LoRaWAN hardware, and low-power designs. I fully understand the requirements for a dual-hive smart beekeeping monitor with solar power and battery management. I can design a reliable PCB integrating ESP32 with LoRa (module or carrier board—recommendation will be provided), HX711 load cell interfaces, I2S MEMS microphones, DS18B20 sensors, and efficient solar charging for Li-Ion/LiFePO4 batteries. I have experience with low-noise routing, ultra-low-power optimization, and JLCPCB-ready designs. I can deliver complete schematics, PCB, Gerbers, BOM, and pick-and-place files, and share previous work for reference.
$140 USD in 7 days
6.6
6.6

Hello! As an experienced Electronics Engineer and PCB Designer, I am prepared to tackle the Smart Beehive Monitoring System Design project. Leveraging my expertise, I will develop a custom carrier board integrating ESP32 with LoRaWAN capabilities. The design will focus on efficient power management with solar and battery options, fulfill sensor requirements for weight, audio, and temperature monitoring for two hives, and include robust connectors for outdoor durability. To streamline assembly, I recommend designing a carrier board for the Heltec WiFi LoRa 32 V3. I will ensure low-power optimization and high-quality audio routing for accurate data transmission to the 'Beep' platform. Ready to kickstart this transformative project? Cheers, RedBrick American Engineering
$30 USD in 1 day
4.7
4.7

I will do:- Simple to advanced Circuit design and analysis using software tools such as KiCAD, Proteus, Altium Designer, Allegro, PADs, and Eagle My package provides the following services - Schematic drawings - Gerber files - Netlist generation - Pcb's - BOM generation (Professional BOM) - 3D Models of the Actual PCB - ECAD Library Administration I will also generate Gerbers on existing PCBs files
$140 USD in 7 days
3.8
3.8

Hello. I previously worked on a solar powered agricultural IoT monitoring device while collaborating with a small hardware startup supporting remote livestock farms. Here are some of my questions to clarify. ★ Do you have a preferred LoRaWAN region configuration such as US915 or EU868 ★ Is the Beep platform using standard LoRaWAN payloads or a custom encoder ★ Do you prefer Li Ion or LiFePO4 as the primary battery chemistry ★ What is the expected solar panel current under typical operating conditions ★ Are the load cells already selected or should I recommend suitable models ★ Do you require calibration circuitry or jumpers for the load cell channels ★ What sampling rate do you expect for the audio data before FFT processing ★ Should the microphones be powered continuously or only during wake cycles ★ Is there a target enclosure size that constrains PCB dimensions ★ Do you need ESD or surge protection on external sensor connectors ★ Will the device need a USB or UART interface for debugging and flashing ★ Do you prefer JST XH or screw terminals for the load cell connections ★ Are there any environmental compliance requirements like IP rating goals ★ Should the design include battery voltage and solar current monitoring ★ Do you want the PCB designed as a single board or as a carrier for a dev module Looking forward to collaborating with you! Shoot me a quick message here, and let’s chat more about you and the project. Best regards, Jeferen
$140 USD in 7 days
3.4
3.4

Hi, I am an experienced Electronics and PCB Engineer with strong expertise in ESP32, LoRaWAN hardware, low-power design, and sensor-based systems. I can design a reliable custom carrier board or fully integrated PCB for your dual-hive smart beekeeping monitoring system. I will recommend the most suitable architecture (module-based or Heltec carrier) and handle power management for solar and Li-Ion/LiFePO4 batteries with ultra-low power optimization. The design will properly integrate load cells with HX711, I2S MEMS microphones, and DS18B20 sensors, ensuring low-noise routing and JLCPCB-ready files including schematics, Gerbers, BOM, and CPL.
$120 USD in 7 days
2.0
2.0

Hello, Excited about the Smart Beehive Monitoring System! I specialize in PCB design and have extensive experience with ESP32 and LoRaWAN integration. I will create a custom board that optimizes power management and integrates necessary sensors efficiently, ensuring robust performance in outdoor conditions. Let’s discuss your preferences on integration. What specific features are you prioritizing for the data transmission process?
$40 USD in 3 days
0.0
0.0

Hello there! I am ready to start the project to design a custom PCB for your smart beehive monitoring system. My background in electrical engineering and extensive experience with ESP32 and LoRaWAN make me confident in delivering a robust solution. I recommend designing around the ESP32-WROOM for its efficiency, incorporating all necessary interfaces for load cells, microphones, and temperature sensors while optimizing for low power consumption. Using KiCad, I will provide comprehensive deliverables including schematics, Gerber files, and a detailed BOM tailored for JLCPCB assembly. This ensures reliability and quality in every component, from the charging IC to the connectors. I'm eager to bring your vision to fruition! What specific features are you hoping to prioritize for data transmission and power management? Best regards,
$30 USD in 5 days
0.0
0.0

THIS IS NOT THE AUTO BID, PLEASE REVIEW IT IN DETAIL Hi, I’ve reviewed your project and understand you’re looking for an experienced electronics engineer to design a custom PCB for a smart beekeeping monitoring system. Given the requirements, my expertise in ESP32 and LoRaWAN hardware design will ensure reliable data transmission from your two beehives to the Beep platform. I’d recommend designing around the ESP32-WROOM module integrated with the required sensors and power management features, focusing on energy efficiency to meet your solar power needs. I can deliver the KiCad files, schematics, and optimized BOM for JLCPCB assembly. What specific features do you envision for the user interface of the monitoring system? Let's discuss your timeline and any specific preferences you might have for the design. Sincerely, Ibad
$50 USD in 1 day
0.0
0.0

Hi. How are you? I already checked your description carefully and I'm happy to bid for your project. I will design a low-power, solar-powered ESP32 LoRaWAN PCB for dual-hive monitoring, covering schematic design, PCB layout, power optimization, sensor interfacing (HX711 load cells, I2S MEMS microphones, DS18B20), and full manufacturability for JLCPCB with a clean, well-documented KiCad project. My background includes multiple ESP32 + LoRaWAN hardware designs, ultra-low-noise mixed-signal layouts for audio/FFT applications, and end-to-end delivery from concept through assembled, field-ready boards using JLC/LCSC ecosystems. I will recommend the optimal architecture (module-based vs Heltec carrier) upfront, prioritize deep-sleep current minimization, and deliver verified fabrication files with one clarification round to ensure smooth integration and deployment. Will wait for your quick response. Thanks. Ihor.
$140 USD in 7 days
0.0
0.0

Hi,there. Thanks for posting your project, "Smart Beehive Monitoring System Design." I've read the description carefully and am confident that I can successfully complete this project. I have over 7 years of experience in Electronics, Electrical Engineering, PCB Layout, Circuit Design, Embedded Systems. I have done some projects as smiliar as this one. I can share my previous project experience if you'd like. I enjoy learning new technologies and taking on challenges, even those that seem impossible. I'm very interested in this project and am confident that I can deliver the best results possible without stress. I look forward to working with you. Best regards, Boris
$100 USD in 3 days
0.0
0.0

Combining precision-grade sensor interfacing with efficient power management and reliable wireless connectivity, I can create a robust PCB design for your Smart Beehive Monitoring System that will be solar-powered and transmit data via LoRaWAN to the Beep platform. As a Control System Design Engineer, I have extensive experience with ESP32 and LoRaWAN hardware design which is core to your project's requirements. Your aim to monitor two beehives simultaneously will be realized through my design utilizing ESP32-WROOM combined with RFM95. This will offer a streamlined assembly process and effective connectivity. For the sensor interfacing, I plan to directly integrate two HX711 ADC chips for weight measurement, ensure pin-compatibility for the I2S MEMS Microphones, and interface with DS18B20 temperature sensors. Ensuring noise reduction, especially for the FFT analysis on the ESP32, is a skill I have honed during my extensive work with low-noise audio routing. Crucial to your project, I propose the integration of CN3065 IC for efficient solar charging while optimizing the board for ultra-low power consumption, focusing on deep sleep modes for the ESP32. My goal is to deliver the project files in KiCad, including the schematics, Gerber Files, a thoroughly curated BOM with LCSC part numbers optimized for JLCPCB assembly service, and CPL/Pick and Place files. As an engineer routinely engaged in PCB design, JLCPCB compatibility and assembly optimization are standard facets of my workflow. This combination of skills and experiences positions me as an ideal candidate to bring your Smart Beehive Monitoring System to life.
$140 USD in 7 days
0.0
0.0

Understanding the critical role that honeybees play in our ecosystem, designing a smart beehive monitoring system can be an impactful project. I approach your project with an engineer's rigor, embracing its multifaceted demands - from power management to sensor interfacing for two separate hives. The core of your system is the ESP32 with LoRaWAN capabilities. I favor starting with a pre-built module like the ESP32-WROOM + RFM95, which allows us to quickly establish a reliable and power-efficient communication pipeline. My experience in programming ESP32 microcontrollers – especially optimizing their deep sleep modes – can contribute to the refined power management you're seeking. On the sensor interfacing front, I've designed data acquisition systems that integrate multiple sensors via I2C, SPI, and OneWire. Therefore, interfacing with load cells via HX711 ADC chips, connecting I2S-based MEMS microphones, and incorporating DS18B20 temperature sensors into the system design aligns with my technical expertise. For power management, having experience in designing solar-powered systems, I'll integrate a suitable charging IC, ensuring efficient energy utilization from both your solar input and the Li-Ion/LiFePO4 battery. Prioritizing robust and weatherproof connections, I recommend the use of screw terminals for external sensors, ensuring a lasting interface. I have designed several PCBs optimized for production at JLCPCB, ensuring a seamless transition from design to manufacture. In line with your request, I will deliver KiCad project files, a PDF of the schematics, Gerber files, a detailed BOM list with LCSC part numbers, and CPL files. With a keen focus on low-noise audio routing for the FFT analysis on the ESP32, my approach involves a meticulous PCB layout that minimizes electrical noise, ensuring the audio input remains clean for accurate analysis. I look forward to aiding you in this project, contributing to smart beekeeping solutions, and ultimately, supporting the hard-working honeybees that play a vital role in our eco-system.
$140 USD in 7 days
0.0
0.0

What do you need to guarantee that your smart beehive monitoring system will function optimally, be power-efficient, and withstand outdoor conditions? You need a meticulous circuit design, tailored to the precise requirements of your beehive monitoring system. As a Senior Electrical Design Engineer, I can provide the expertise needed to bring your Smart Beehive Monitoring System to life. For the microcontroller and connectivity requirement, I recommend designing around ESP32-WROOM combined with RFM95. This approach will capitalize on the ESP32-WROOM’s proven track record of stability and robustness while leveraging RFM95’s advanced LoRaWAN capabilities. For the sensor interfaces, I'll design the requisite connectors for the load cells, MEMS microphones and DS18B20 sensors. Meanwhile, focus on facilitating the integration of HX711 ADC chips directly onto the PCB will enhance its reliability. Upon achieving this, the next critical step will be efficient power management, employing a CN3065 IC for apt solar charging and optimized power consumption. Lastly, to ensure endurance in outdoor conditions, I propose the use of sturdy connectors like Screw terminals or JST-XH. In conclusion, you can expect thorough KiCad project files, detailed schematics, Gerber files ready for manufacturing, a comprehensive BOM with LCSC part numbers, and CPL/pick and place files for the assembly process. Leveraging my experience with JLCPCB assembly and low-noise audio routing, you can be assured of a design optimized for your smart beehive monitoring system. Let's create an innovative solution for the eco-conscious beekeepers globally.
$140 USD in 7 days
0.0
0.0

The crux of your project is to design a custom carrier board for a beekeeping monitoring system that can concurrently monitor two hives, feeding data via LoRaWAN to the Beep platform, and ensuring power management for solar and battery input. Drawing from my practical experience in automation control, embedded safety integration, and electrical design, I’m confident I can deliver an efficient and reliable PCB design that matches your specifications. In line with your requirement of an ESP32 microcontroller with LoRaWAN connectivity, I lean towards designing around a module such as ESP32-WROOM combined with RFM95. This approach taps into the established reliability of these components while allowing for the necessary customization to cater to the specifics of your project. As someone well-versed in the ESP32 platform, I comprehend the intricacies of managing its power consumption, a crucial factor in your monitoring device's efficiency. Regarding the interfacing for sensors, I will integrate your HX711 ADC chips for the load cells directly to the PCB, enhancing their reliability. For the audio interfaces, I will ensure pin-compatibility for the I2S MEMS Microphones you've highlighted. Lastly, I will establish an interface for DS18B20 sensors for temperature recording. Your power management requirement aligns well with my expertise, given my background in efficient energy use optimization and low power consumption. I will ensure your device accommodates a 6V Solar Panel input and manage battery usage for 18650 Li-Ion or LiFePO4, integrating an efficient charging IC, like CN3065, suitable for solar power. The connectors will be sturdy and robust, designed to withstand outdoor vibrations. I’ll use Screw terminals or JST-XH, as they are more resilient and better suited for the task. All the hardware design will be delivered complete with KiCad project files, PDF schematics, Gerber Files, BOM with LCSC part numbers optimized for JLCPCB assembly service, and CPL/Pick and Place files. In summary, with a seasoned background in ESP32 hardware design, low-noise audio routing critical for the FFT analysis on ESP32, and experience with JLCPCB assembly using parts available in their library, I am well-equipped to deliver a bespoke and efficient solution for your Smart Beehive Monitoring System.
$140 USD in 7 days
0.0
0.0

Delving into the specifics, your project necessitates a keen understanding of ESP32 architecture and its LoRaWAN capabilities, alongside a thorough insight into sensor interfaces and power management, which I possess. Furthermore, I am proficient with KiCad which is your preferred design tool and have previously created designs optimized for JLCPCB assembly. Initially, my focus will be on the microcontroller and connectivity setup. My recommendation would be to utilize a module design approach using ESP32-WROOM with RFM95. This configuration will deliver the most reliable performance while simplifying assembly. For sensor interfaces, my attention will primarily be on ensuring impeccable interfacing of the weight, audio, and temperature sensors while maintaining a low-noise audio path for FFT analysis on the ESP32. For the weight interface, I will opt for an integrated HX711 ADC chip model for increased reliability. For audio, I will facilitate ESP32 proprioceptive compatibility with external I2S MEMS Microphones. In terms of power management, the successful integration of a CN3065 charging IC seems most apt given its favorable alignment with solar charging. I have hands-on experience with designing power-efficient circuits and you can count on an ultra-low power consumption optimization focus, a critical requirement for your project. Finally, my design will ensure robust connectors for external sensors to withstand outdoor vibrations. The deliverables will be as per your specification, optimized for JLCPCB assembly service, complete with the BOM, Gerber Files, CPL/Pick, and Place files. Given my experience and your project specifics, I believe we can create a smart beehive monitoring system that exceeds your expectations, integrating mechanical finesse with smart electronics for the beekeeping domain.
$140 USD in 7 days
0.0
0.0

The concept of employing cutting-edge electronic design for the preservation and monitoring of bee populations speaks volumes of the innovative approach to environmental conservation. Crafting a streamlined, comprehensive solution for smart beekeeping is something that I believe hold great potential. The distinct challenge of orchestrating a symphony of various sensors, power management, and low power wireless connectivity within the constraints of a compact, power-efficient PCB design is a challenge I am primed to undertake. My initial proposition would be to leverage a modular design approach, which would revolve around a known and tested LoRaWAN-capable development board such as the Heltec WiFi LoRa 32 V3. This strategy cuts down the potential risks associated with RF engineering and certification, while also ensuring the compatibility with Beep platform. Given that the system needs to function outdoors with potential exposure to unpredictable climatic conditions, an integrated ESP32-WROOM module coupled with RFM95, sealed within the PCB design, would deliver the required sturdiness. In terms of sensor interfacing, I propose integrating the HX711 ADC directly on the board, as having these critical components on-board can mitigate the risk of performance degradation due to hive vibrations or unstable connections. For the audio interface, exact pin compatibility would be maintained to ensure seamless connection with the MEMS Microphones. The DS18B20 sensors can be easily interfaced via the OneWire protocol. Power management remains a key aspect of this project, as the system will be operated on solar power backed by a Li-Ion or LiFePO4 battery. I'll employ the efficient CN3065 IC or a similar equivalent, best suited for solar applications, with fine-tuned deep sleep modes to ensure ultra-low power consumption. For ease of manufacturing and assembly, all design files will be provided in the preferred KiCad format, with all schematics and Gerber files readily available. I'll provide a comprehensive BOM with LCSC part numbers, optimized for JLCPCB assembly service, along with accompanying CPL/Pick and Place files. Having previously worked on several IoT projects with ESP32 and low-noise audio routing for FFT analysis, plus designing for JLCPCB assembly, I am well-prepared to meet the challenges of this project. Let's create a robust, power-efficient solution to revolutionize beekeeping by leveraging today's connectivity and sensor capabilities.
$140 USD in 7 days
0.0
0.0

From the detailed description, you seek to develop a smart beehive monitoring system, and it's clear that both power efficiency and sensor integration are vital to the success of your project. Your emphasis on an ultra-low power consumption optimization suggests that the device will be deployed in an environment with limited access to power, while the different sensor interfaces reveal a comprehensive monitoring system. I am equipped to deliver these requirements and beyond, using my unique blend of mechanical and embedded systems expertise. Firstly, on the electronic front, I've designed a variety of PCBs around ESP32, and I am familiar with their ultra-low power modes and power-saving techniques. Your preference for LoRaWAN aligns well with my knowledge base, as I have designed several devices built around the ESP32-WROOM + RFM95 combo, one of which was a remote sensor unit for agricultural monitoring - a somewhat similar application to yours. When it comes to sensor selection, I understand why you prefer the HX711 ADC chip for load cells and the INMP441 microphones for audio. I worked on an industrial automation project where we used these components and their integration with ESP32 went seamlessly. I can bring this experience to bear in designing your PCB with these sensor interfaces. Moreover, I have familiarity with the DS18B20 temperature sensors, and I can ensure it interfaces correctly with your system. On the power management, using my experience with solar-powered electronics, I recommend the CN3065 charging IC for solar input, complemented with a power-optimized design at the system level. I have experience in designing robust connectors for external sensors that can withstand outdoor vibrations, as one of my past projects was a seismic monitoring device deployed in harsh field conditions. Lastly, in terms of deliverables, I am proficient in KiCad for designing PCBs and can provide all schematics, Gerber files, BOM as specified. I have also worked with JLCPCB for assembly services and can optimize the BOM for components available in their library. My proposal is to create a board designed around ESP32-WROOM + RFM95, with dedicated interfaces for the HX711, INMP441, and DS18B20 sensors. The board will have a focus on power optimization and robustness, ensuring its reliable operation in outdoor conditions.
$140 USD in 7 days
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