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I’m building a single-phase grid-tie solar inverter around the STM32F103 and need both the hardware completed and the firmware written. The control board must handle MPPT, keep perfect grid synchronization, and expose real-time data for remote monitoring. Firmware requirements • Implement a reliable MPPT algorithm suited to PV strings. • Keep the inverter phase-locked to the utility, injecting power with a clean sinusoid and rapid anti-islanding response. • Expose operating metrics (voltage, current, power, temperature, fault states) through Modbus, CAN bus, and Ethernet. Hardware requirements • Schematic and PCB layout for the STM32F103 control board, opto-isolated gate-drive interfaces, sensing circuitry, surge protection, and communication ports. • Complete BOM in spreadsheet form: manufacturer, part number, footprint, key specs, and my own list of preferred brands where it applies. Alternative equivalents are welcome when my brands are unavailable. • All design files: Altium, KiCad, or EasyEDA—whichever you normally use. Gerbers and pick-and-place files must be production-ready. Acceptance criteria 1. Compiles and runs on STM32CubeIDE with no warnings. 2. Demonstrates stable MPPT and grid sync on a simulated PV source (I’ll verify on hardware). 3. Communication verified via Modbus RTU, CAN 2.0B, and Ethernet TCP/IP. 4. BOM cross-checked against preferred-brand list and all components in stock at two major distributors. If you’ve previously shipped STM32 power-electronics designs—or have reference projects that prove it—let’s talk timelines and any questions you might have.
Project ID: 40364847
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8 freelancers are bidding on average ₹21,500 INR for this job

Hi there, I’ve carefully reviewed your project, and it fits perfectly with my experience in power electronics, embedded systems, and PCB design. I can handle both the hardware development and firmware implementation to deliver a stable, grid-synchronized inverter with efficient MPPT and reliable communication interfaces. I’m Samuel Tshibangu, a mechatronics engineer with several years of hands-on experience designing multi-layer PCBs and embedded systems using Altium Designer. I’ve worked extensively with STM32 (including STM32F1 series), power electronics control (MPPT, PWM, feedback loops), and communication protocols such as Modbus, CAN, and Ethernet. I’ve also designed and implemented gate drivers, sensing circuits, and protection stages for high-power systems. I’ve already worked with similar components and architectures involved in your project (STM32-based control, inverter topologies, sensing, and communication stacks), so I can move quickly and deliver clean, production-ready results. My approach ensures robust hardware (noise immunity, isolation, protection) and efficient, well-structured firmware (stable MPPT, precise grid synchronization, and reliable data handling). I’m confident I can deliver this faster while maintaining high quality. Feel free to message me so we can go over your design and timeline. Best regards, Samuel Tshibangu
₹20,000 INR in 1 day
6.3
6.3

Having a wealth of experience in industrial automation, my skillset aligns perfectly with your grid-tie inverter development project. Not only have I completed complex systems similar to yours, such as implementing control algorithms, ensuring perfect synchronization and establishing reliable communication protocols, but I have also gained proficiency around the STM power electronics design through numerous projects. I believe this lays a great foundation for meeting your firmware and hardware demands. Moreover, I bring to the table proven capabilities in time management, attention to details, and thoroughness; all crucial in your project which demands meticulousness in every step from schematic design through PCB layout to BOM cross-checking. Adapting between different design programs is something I'm accustomed to, so providing you with production-ready files in your preferred format is not a problem. Let's not forget that your utmost satisfaction is my goal - as per your acceptance criteria, I will ensure everything compiles well without warning and all the communication channels (Modbus, CAN bus, Ethernet) are functioning seamlessly. Adding on top of it all is my strong supplier network which can ensure that every component we pick remains within stock at major distributors.
₹32,000 INR in 28 days
5.1
5.1

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 for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
₹25,000 INR in 7 days
4.5
4.5

Hi, I have already made this project and can deliver a high performance grid tie inverter solution based on the STM32F103. I will implement a robust MPPT algorithm and precise phase locked loop for seamless grid synchronization and rapid anti islanding protection. The hardware design will include opto isolated gate drivers and full sensing circuitry in Altium or KiCad with production ready Gerber files. I will provide clean firmware that compiles in STM32CubeIDE and supports Modbus, CAN, and Ethernet monitoring as requested. My BOM will prioritize your preferred brands while ensuring 100 percent component availability at major distributors. I have extensive experience in power electronics and can ensure stable performance from simulation to hardware deployment. Best regards
₹15,000 INR in 5 days
2.5
2.5

I have experience with STM32 (incl. STM32F1), real-time control loops, digital power systems, and industrial communication stacks (Modbus, CAN, TCP/IP). I understand the importance of stable MPPT, precise grid synchronization, and fast protection in grid-tie designs. Approach Hardware: Design a robust STM32F103 control board with isolated gate drivers, accurate sensing (voltage/current), surge/EMI protection, and communication interfaces. Deliver schematic, PCB, Gerbers, pick-and-place, and a fully cross-checked BOM (with preferred + alternate parts in stock). Firmware: MPPT (Perturb & Observe or Incremental Conductance) PLL-based grid sync (clean sinusoidal injection) Anti-islanding, fault handling, battery/thermal protection Modbus RTU, CAN 2.0B, and Ethernet telemetry Validation: Simulation → firmware testing → staged hardware bring-up. Code will compile cleanly in STM32CubeIDE and be well-documented for tuning and future upgrades. Happy to share similar work and define milestones. Let’s align on power level, topology, and standards before starting.
₹20,000 INR in 7 days
0.0
0.0

Hi, My approach is focused on solving the core engineering challenges in your project: maintaining clean sinusoidal current injection under varying PV conditions, ensuring fast and stable PLL-based grid locking, and delivering a robust embedded system that behaves predictably under real-world electrical stress. Firmware development will include: - Robust MPPT algorithm optimized for PV string dynamics and fast irradiance changes - High-stability PLL for precise grid phase synchronization and low harmonic injection - Safe inverter control logic with fast fault detection and anti-islanding response - Real-time data acquisition and structured communication via Modbus RTU, CAN 2.0B, and Ethernet TCP/IP - Clean STM32CubeIDE implementation with deterministic control loop timing Hardware design will include: - STM32F103-based control board schematic and PCB layout - Isolated gate driver interfaces for safe power stage control - Accurate sensing circuits for voltage, current, and temperature with proper filtering - Surge protection and EMI-aware layout for grid-connected operation - Full BOM with manufacturer details, preferred-brand matching, and distributor availability validation - Production-ready Gerbers and pick-and-place files
₹20,000 INR in 10 days
0.0
0.0

Gangtok, India
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