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I need a compact custom PCB designed for an embedded UAV safety subsystem. The board should integrate sensing, control, power management, battery charging, status indication, buzzer alert, and PWM-based servo actuation into a single 2-layer PCB. The design should be based on an ESP32-WROOM module, not an ESP32 development board. The onboard sensor should be the MPU6050 IMU, as the existing firmware and ML model are built around this sensor. The board should also include a servo output for parachute deployment, a loud buzzer, a main power switch, battery input, onboard single-cell Li-ion/LiPo charging and protection, USB Type-C programming/debugging, and required LEDs. Maximum board size: 80 mm × 80 mm. The board should be kept as compact as realistically possible while preserving reliable routing, power stability, ESP32 antenna clearance, and separation between noisy servo/power sections and the IMU. Required functional blocks: 1. ESP32-WROOM module with required boot/reset/programming circuitry 2. MPU6050 IMU connected over I2C 3. USB Type-C programming/debug interface 4. USB-UART bridge for ESP32 flashing 5. Single-cell Li-ion/LiPo battery input 6. Onboard battery charging and protection circuit 7. Clean 3.3 V rail for ESP32 and MPU6050 8. Separate high-current servo power rail 9. PWM servo output connector 10. Loud buzzer driven safely through a transistor/MOSFET driver if needed 11. Main power switch 12. Power/status LEDs 13. Test/debug pad for timing probe Firmware-fixed pinout: * GPIO19 = I2C SDA for MPU6050 * GPIO22 = I2C SCL for MPU6050 * GPIO2 = status LED * GPIO23 = buzzer output * GPIO25 = servo PWM output * GPIO0 = button / boot / force-arm input * GPIO4 = probe/debug timing output * TX0/RX0 = USB-UART programming and serial debug * MPU6050 I2C address = 0x68 Power requirements: The ESP32 and MPU6050 should run from a clean 3.3 V rail. The servo must not be powered from the ESP32/logic rail. It should have a separate high-current 5 V servo rail with sufficient decoupling and a large bulk capacitor near the servo connector to prevent brownouts during deployment. Logic and servo power domains should be separated carefully while maintaining a proper ground strategy. Layout requirements: * 2-layer PCB * ESP32-WROOM antenna at board edge with correct copper keepout * MPU6050 placed away from switching regulators, inductors, buzzer current paths, and servo power traces * Servo connector and bulk capacitor placed close together * USB-C placed at an accessible board edge * Battery/charging/protection section placed logically near the battery input * Wide traces for servo and battery power * Bottom layer should be used as a strong ground reference wherever possible Deliverables: 1. Complete schematic 2. Routed PCB layout 3. Gerber and drill files 4. BOM with part numbers and footprints 5. Pick-and-place file if assembly is planned 6. Native KiCad/EasyEDA/Altium project files Preferred toolchain: KiCad, but EasyEDA or Altium is acceptable if the workflow is faster. The goal is a manufacturable, reliable first integrated hardware revision, not unnecessary miniaturization. The board should pass basic DRC/DFM checks and be suitable for fabrication through JLCPCB or a similar PCB manufacturer.
Project ID: 40443569
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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
₹3,800 INR in 7 days
3.4
3.4
12 freelancers are bidding on average ₹8,567 INR for this job

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.
₹7,000 INR in 7 days
7.4
7.4

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
₹12,500 INR in 7 days
5.8
5.8

As you embark on this project of designing a compact ESP32 PCB, I would love to be given the opportunity to showcase my vast experience in electronics and PCB layout. With a strong background in Electrical Engineering and a knack for using tools like KiCad, EasyEDA, and Altium that you prefer, I am confident in producing high-quality deliverables such as comprehensive schematics, efficient PCB layout, precise Gerber and drill files, accurate BOMs, and even native project files. My career as an electrical engineer has exposed me to various electronic designs with one constant focus - manufacturability and reliability. These are exactly the qualities you seek in your design. Noteworthy is my understanding of the 3.3V power source required for ESP32 and MPU6050, the need for separate high-current servo power rail, and separation of power domains between logic power and servo power while maintaining proper grounding. In addition to these specific requirements, I've honed my skills in 2D Drafting and this can be seen from the precise placement of components on your 80mm x 80mm compact board. My knowledge of best practices when it comes to routing, power stability, clearance allowance for ESP32's antenna, noise management around IMUs and efficient use of ground reference will definitely be valuable not just in this design but also in any future revisions you may need
₹18,000 INR in 7 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
₹7,000 INR in 7 days
4.7
4.7

I have designed and shipped compact ESP32-WROOM PCBs with IMU integration, LiPo charging, antenna keepout compliance, and JLCPCB-ready Gerbers before — including a wearable device with ESP32-class MCU, MPU-series IMU on I2C, battery management, and tight 2-layer layout. The exact discipline your UAV safety board requires. I've read the full spec. Key layout decisions I'll apply: • ESP32-WROOM antenna at board edge with copper keepout, all GPIO routed per your fixed pinout (SDA=19, SCL=22, LED=2, BUZ=23, SERVO=25, BOOT=0, PROBE=4) • MPU6050 placed away from the servo bulk cap, buzzer driver, and battery charging inductor — minimising vibration and switching noise on I2C • Separate servo 5V rail with large bulk cap directly at connector, MOSFET buzzer driver, logic/servo ground star joined at single point • TP4056 or MCP73831 for LiPo charging + DW01A+FS8205 protection, USB-C with CC resistors at board edge • Bottom layer as continuous ground reference, power traces sized for current, DRC/DFM clean for JLCPCB Deliverables in 2 days: full KiCad project, Gerbers, drill, BOM with LCSC part numbers, pick-and-place. Is the servo a standard 5V SG90/MG90 or a higher-voltage type — this determines the servo rail regulator?
₹7,000 INR in 2 days
3.2
3.2

Hello, This project requires much more than a simple ESP32 breakout PCB. The critical part is maintaining stable operation between the ESP32, MPU6050 IMU, battery charging system, and high-current servo actuation on a compact 2-layer board. I have more than 10 years of experience in embedded hardware, PCB design, and firmware development. I have designed complex multi-layer and high-speed embedded systems including FPGA-DDR boards, power-sensitive layouts, actuator control systems, and mixed-signal embedded hardware. I fully understand the importance of: *clean 3.3V logic rails *separated servo power domains *ground return strategy *bulk decoupling for servo deployment *IMU noise isolation *ESP32 RF antenna keepout *reliable USB-C and Li-ion charging integration I can deliver a manufacturable and reliable PCB design optimized for real UAV operation, not only schematic capture and routing. I would like to discuss your deployment mechanism, servo current requirements, and expected PCB size constraints in more detail. Thank you. Jude
₹15,000 INR in 7 days
2.1
2.1

Hello, I specialize in compact embedded PCB design for ESP32-based systems, including mixed-signal layouts involving IMUs, power management, motor/servo control, and RF-sensitive modules. I have designed multiple 2-layer and 4-layer ESP32-WROOM boards integrating Li-ion charging (TP4056-class and PMIC-based solutions), MPU-series IMUs over I2C, USB-C programming interfaces (CH340/CP2102-class USB-UART bridges), and isolated power domains for noisy actuators such as servos and buzzers. For your UAV safety subsystem, I would start by locking a clean architecture around separated power domains: a low-noise 3.3V rail for ESP32 + MPU6050, and a protected 5V high-current servo rail with bulk capacitance and proper grounding strategy to prevent brownouts during deployment events. I will ensure correct ESP32-WROOM antenna keepout compliance, controlled I2C routing to the MPU6050, and physically isolated placement of switching/noise components to maintain IMU stability for your ML model. My workflow includes schematic capture, DRC-first PCB layout, controlled impedance/ground planning, followed by fabrication-ready outputs (Gerbers, BOM with JLCPCB-friendly parts, and pick-and-place files if needed). I use KiCad as a primary toolchain but can adapt to EasyEDA or Altium depending on your pipeline. I can begin immediately, deliver a clean first revision suitable for fabrication, and iterate quickly based on your validation or firmware constraints. Best Regards, Maksym
₹3,000 INR in 7 days
0.0
0.0

As I have already worked similar kind of design so I can design the full UAV safety subsystem PCB in KiCad with proper power-domain separation, ESP32-WROOM integration, MPU6050 placement optimization, USB-C programming, Li-ion charging/protection, servo actuation, and manufacturable 2-layer routing suitable for JLCPCB production. Relevant experience: * ESP32/STM32/Raspberry Pi embedded hardware design * Custom IoT and robotics PCBs * Power management and battery-powered systems * Sensor integration (I2C/SPI/UART) * KiCad schematic + PCB + production outputs For this design I would implement: * ESP32-WROOM with proper EN/BOOT auto-program circuit * MPU6050 isolated from noisy power/servo regions * Dedicated clean 3.3V LDO rail for ESP32 + IMU * USB-C + USB-UART bridge (CH340C or CP2102) * Single-cell Li-ion charging/protection * DRC-clean 2-layer manufacturable PCB Deliverables: * Schematic * PCB layout * Gerbers/drill files * BOM * Pick-and-place * Native KiCad project * Assembly notes if required One important engineering point: A servo cannot reliably run directly from raw Li-ion voltage if deployment torque matters. A proper 5V boost rail or regulated servo rail is required. Estimated workflow: 1. Schematic capture 2. Power integrity review 3. PCB placement with RF/noise constraints 4. Routing and DRC Expected timeline: * Schematic: 1–2 days * PCB routing + review: 2–4 days * Final production package: 1 day Total: ~4–7 days for a solid Rev-A board.
₹4,000 INR in 10 days
0.0
0.0

Hey, this is exactly the kind of work I do at Boxpox — custom embedded hardware from schematic to Gerbers. Quick read of your brief tells me you've already figured out the hard parts: firmware-fixed pinout, separate servo/logic rails, MPU6050 keepaway from switchers, antenna keepout. So this isn't a design problem, it's an execution problem. I can handle it cleanly. My approach: - ESP32-WROOM with proper boot/EN/strapping circuit, IO0 button doubles as force-arm as you've specified - TP4056 or IP5306 for charging + protection on 1S LiPo, depending on what I can confirm in stock at LCSC - LDO (AP2112K or HT7333) for clean 3.3V logic rail — no switcher noise near MPU6050 - Separate 5V servo rail (direct battery or small boost if needed) with 470–1000µF bulk cap at connector - MOSFET-driven buzzer on GPIO23 with flyback protection - CH340C or CP2102 for USB-UART, USB-C with CC resistors for cable compatibility - MPU6050 on I2C at 0x68, SDA/SCL filtered, placed away from power section - Bottom copper poured as solid GND, slotted between domains if needed - Full DRC clean before handoff Deliverables: KiCad project, schematic PDF, routed PCB, Gerbers+drill, BOM with LCSC part numbers, PnP file — JLCPCB-ready. Timeline: 4–5 working days for a first complete revision. Bid: ₹10,000 I can share previous PCB work (ESP32-based, SMD) if that helps. Let me know if you want to get started.
₹10,000 INR in 7 days
0.0
0.0

Hello, I am an Electronics Maintenance Engineer with hands-on experience in embedded systems, ESP32 development, circuit troubleshooting, and PCB design. I can help with: * ESP32 firmware development (Wi-Fi, Bluetooth, sensors, communication protocols) * PCB design and schematic capture * Hardware debugging and troubleshooting * Power supply and signal integrity considerations * Prototype development and testing * Integration of displays, sensors, relays, and communication modules * Reverse engineering and hardware modification I have practical experience working with real electronic systems and repairing professional devices, which gives me strong debugging and problem-solving skills in both hardware and software. I focus on: * Reliable and clean designs * Clear communication * Fast response and project updates * Delivering functional and tested solutions I am comfortable working with tools such as: * KiCad / Altium / EasyEDA * ESP-IDF / Arduino Framework * UART, I2C, SPI, CAN * STM32 and other microcontrollers when needed I would be happy to discuss your project requirements and help turn your idea into a reliable product. Best regards, Nabil
₹7,000 INR in 7 days
0.0
0.0

Dear Sir I would be glad to challenge your project based on esp32 witch is for me the best mcu ever made i have over 7 years of design pcb . I have allready done a similar project i have a deep experience of mpu 6050 for it's integration in a singleb pcb . i would be glad to have an interview to discuss more deeply your need about this project . Have a look at my port folio you will see the complete integration of mpu6050. So fell free to contact me .
₹8,500 INR in 14 days
0.2
0.2

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