Microcontroller jobs
You will receive the existing schematics, BOM, and mechanical constraints after we sign an NDA. I am flexible on the choice of microcontroller or processor as long as it offers enough I/O and headroom for future firmware updates; I’m happy to discuss ARM Cortex, AVR, PIC, or any alternative you feel best suits the job. Key deliverables: • Updated consolidated schematic • Optimised multilayer board layout with clear differential pair routing where needed
Pcb design and firmware microcontroller Pcb design and firmware microcontroller
...sensor, handle threshold logic, and trigger the alert (sound, vibration, or LED—whichever best fits the space and power envelope) • Complete schematic, PCB layout, and bill of materials so the design can be reproduced • Brief usage guide explaining calibration, normal operation, and how to adjust alarm levels I’m open to your preferred development tools—Arduino, STM32, ESP, or a custom microcontroller platform—as long as the end result stays compact and keeps power draw low enough for everyday wear. Speed matters. I’d like the first working unit on my desk as soon as possible, with interim check-ins or photos to confirm progress along the way. If you have prior experience with radiation detection hardware, wearable enclosures, or low...
...reading validated against known weights, with the method documented. 4. Simple readout: a basic phone/PC display of the live force value (a minimal app or existing BLE viewer is fine). 5. Source files: firmware code, CAD files for the shaft/handle, wiring diagram, and a short build/calibration note. ## Skills needed (ideally one person) - Embedded electronics + firmware (load cell / ADC / microcontroller, BLE). - Mechanical design / CAD + 3D printing (the sliding-shaft mechanism and sealed handle). - A mechatronics or hardware-prototyping generalist is the ideal fit. ## To include in your proposal - Similar hardware prototypes you've built (with photos/links if possible). - Whether you can handle both the electronics and the mechanical/CAD side, or only one. - Rough cost a...
...has hands-on experience designing intrinsically safe circuits. The job centres on the control system of the dispenser; the board you create must reliably manage flow-rate control while meeting the strict electrical safety demands of hazardous-area operation. Here’s what I expect from the engagement: • Develop a full schematic that integrates the pump’s sensors, valve drivers and my chosen microcontroller, then add a custom zener-barrier stage to limit energy into the hazardous zone. • Lay out a compact, production-ready PCB (Altium Designer or KiCad are both fine) observing creepage, clearance and thermal guidelines for ATEX/IECEx intrinsic-safety compliance. • Provide a verified BOM, intrinsic-safety calculations, Gerbers, pick-and-place data and...
...from and now need the electronics and software ecosystem that turns them into a re-configurable display wall. Think 3 × 3, 4 × 4, 5 × 5, 6 × 6—or even larger—matrices where each module clicks together, powers up, and appears as one continuous canvas. Hardware • Design a compact PCB for each display that carries its own driver, power conditioning and a Wi-Fi-enabled microcontroller so every tile can auto-discover its neighbours. • Provide an edge connector or other simple bus so power and data can daisy-chain when the tiles are slotted into a frame. • Supply full schematics, BOM and Gerber files, plus a reference back-plane/controller if you feel a master node will simplify things. Production ready from Firmware •...
I have an existing two-layer FR4 board that now needs a clean Rev 2 spin for a consumer-electronics application. The current schematic and PCB files (KiCad) are available; the goal is to tighten the layout, correct a few routing issues around the microcontroller, and add a properly-impedance-controlled USB interface brought out to a Type-C connector. No RF sections are involved, so the focus remains on signal integrity, power distribution, and manufacturability on standard 1-oz copper, 1.6 mm FR4. Please keep the microcontroller footprint unchanged, as the firmware team is already locked to that part. All other passives can move if it improves routing or clears DFM constraints. I also need silk updates for clearer assembly markings. Deliverables • Updated schematic a...
This project focuses on the custom PCB Design of an advanced Embedded System powered by the ESP32 for scalable IoT applications. By leveraging the ESP32 microcontroller, this IoT device delivers robust wireless connectivity and efficient processing. The comprehensive PCB Design ensures a compact, reliable Embedded System, perfectly tailored for seamless IoT integration and stable ESP32 hardware performance.
...Gerber files (manufacturing-ready) BOM (Bill of Materials) with part numbers, quantities, and suppliers Top/bottom view and 3D render images of the PCB Design files in native format (Altium / KiCad / Eagle / OrCAD) Scope Notes (Hardware Only, Unless Stated Otherwise) This is a hardware design job (schematic + layout + Gerber + BOM), not firmware. If you also do embedded firmware (C/C++ for microcontroller — MPPT logic, protection, monitoring), please mention it separately in your proposal with separate pricing — we may hire this as a second phase. Required Experience Proven prior experience designing DC-AC inverters or solar MPPT circuits at medium-to-high power levels (10kW+, ideally 30kW+ or industrial three-phase systems) Must be able to show past project p...
...to measure Vertical Impact Peak (VIP) and asymmetry. The hardware architecture utilizes a custom multi-channel capacitive force sensor array (copper pads separated by a cellular polyurethane/Poron dielectric) embedded in a shoe insole/cleat. We need a full-stack embedded systems engineer to design the custom Flexible PCB layout in KiCad and write the bare-metal C/C++ firmware for an STM32 microcontroller to process the sensor data. Key Deliverables & Scope: 1. KiCad Flex-PCB Layout: - Design a custom-shaped, ultra-thin Flexible PCB (Flex-PCB) insole footprint based on provided mechanical DXF profiles. - Implement strict analog signal integrity layouts, utilizing active shielding, guard rings, and cross-hatched ground planes to aggressively isolate traces from stray ...
I am looking for an experienced PCB layout engineer to design and route a compact, dual-layer PCB for an IoT smart switch module. The design must fit inside a very restricted space (approximately 55mm x 45mm) to fit behind standard wall switchboards. Key aspects of the design: - Microcontroller: ESP32-WROOM-32 series (Wi-Fi + BLE). - Power: On-board AC-to-DC isolated converter (230V AC to 5V DC) and a 3.3V DC-DC buck converter. - Relays: 1x onboard relay switching AC mains load. - Inputs: Single-channel external switch sensing circuit. - Safety & Protection: Fuse and surge protection (MOV), with strict clearance/creepage rules (minimum 2.5mm spacing between high-voltage AC mains and low-voltage DC logic traces). - Tools: KiCad preferred. Deliverables: - Schematic review and op...
...mobile device or scoreboard in real time. System architecture: 8 satellite microphone PCBs, each housing one digital I2S MEMS microphone, mounted at fixed positions on a foldable frame. Two STM32 microcontrollers on the main board — each reads four synchronized I2S microphone channels and performs real-time pulse detection and accurate time-of-arrival estimation. One ESP32 microcontroller serves as the central controller: it collects timestamp data from both STM32 units, runs the TDOA-based localization algorithm (including temperature compensation), and manages wireless communication (WiFi + LoRa). Environmental sensor (BME280) for temperature/humidity correction of the speed of sound. Battery-powered with a rechargeable Li-Po cell and power manag...
Project Title Design a Logic Gate Based Non-Programmable Sensor-Actuator PCB — Prototype Development Project Overview I need a custom electronics board designed and prototyped around a combination of Logic Gates, built for a non-programmable, hardware-only sensor-to-actuator decision system (no microcontroller/firmware involved). The board should be robust, classroom/hobbyist-safe, and ready for small-batch prototyping. Concept The core idea is a hardware logic control board where inputs (sensors which uses only digital signal like IR sensor, PIR sensor, LDR sensor etc.) and outputs (actuators/dc motors, LED and buzzer) are combined using any gate logic — with no coding or programming required. Detailed Requirements 1. Power Requirements Power input via a 9V b...
I’m building the low-level firmware for an ARM Cortex-A microcontroller and need help closing the remaining gaps in startup code, peripheral configuration, and board-level testing. The toolchain is already in place (GCC, OpenOCD, and a J-Link probe), and the hardware boots, but several peripherals still need clean, maintainable drivers and the overall initialization sequence must be tightened for reliable production use. You’ll dive into: • Writing or refactoring C/C++ startup routines, linker scripts, and BSP code specific to this Cortex-A device • Bringing up UART, SPI, GPIO, and a high-speed interface that feeds data to an upstream processor • Tracing hard faults with JTAG/SWD and delivering concise root-cause notes so I can reproduce your findings...
...JTAG and Serial Wire Debug (SWD). Used for programming, debugging, and testing the processor. Key Features 32-bit ARM processor 3-stage pipeline Low power consumption High performance Supports Thumb-2 instruction set Fast interrupt handling using NVIC Memory Protection Unit (optional in some devices) This is the standard architecture of the ARM Cortex-M3 commonly used in embedded systems and microcontroller applications....
I have a microcontroller-based board that will sit in the field and quietly record temperature readings from one or more digital sensors. Your job is to write the embedded firmware that pulls those readings at set intervals, time-stamps them, and stores everything persistently in a neat, easily downloadable file (CSV or similar). Core needs • Reliable polling of the attached temperature sensors (currently using a standard one-wire digital device, but code should be abstract enough to swap to I²C if required later). • Configurable sample rate—default 1 Hz but changeable over a simple serial menu or compile-time constant. • Local, non-volatile storage on the board’s microSD slot; automatic file rollover when a maximum size is reached so nothing...
...enough to resist casual tampering • Interior space roughly the size of a small valuables case (approximately 18*7*2 cm) • Smooth external finish, no exposed fasteners around the lock area Electronics • Capacitive fingerprint module (stable library support for easy enrollment/deletion) • Simple status feedback—minimal LEDs or sound only if they keep costs low • USB-C backup supply • Microcontroller code that I can reflash later if needed Deliverables • CAD files for the metal housing and any custom brackets • Complete wiring diagram and PCB (if used) in Gerber format • Embedded source code with clear comments • Bill of materials with vendor links and current unit pricing • Step-by-step assembly guide ...
...based on the STM32G071RBT6. The design must include all required supporting circuitry and should be suitable for future manufacturing. Main Controller STM32G071RBT6 Power Section 24 V DC input Complete buck converter circuit (24 V → 3.3 V) Reverse polarity protection Input fuse or polyfuse TVS diode Input/output filtering All required inductors, capacitors, resistors and compensation network Microcontroller Support Complete power connections Decoupling capacitors Bulk capacitors BOOT configuration Reset circuit SWD programming circuit Clock circuit (internal or external, whichever is recommended) All required pull-up and pull-down resistors Communication Complete RS-485 interface RS-485 transceiver Termination resistor Fail-safe bias resistors (if required) ESD/TVS protectio...
I need an ESP32 project that takes 7 analog inputs and produces 9 large numerical outputs on a graphical display. Requirements: - Use of ESP32 microcontroller. - Read 7 analog signals. - Display 9 Zones of Large Numbers on 9 Displays Ideal Skills and Experience: - Proficient in ESP32 programming. - Experience with analog input handling. - Strong skills in graphical display programming for large numbers.
I’m looking for someone to build a low-cost prototype external sensor unit for my GrowlerZ iOvilus project. The idea is a small Bluetooth sensor hub that connects to an Android phone/app and sends live readings from external sensors. Prototype requirements: ESP32-C3 or similar low-cost Bluetooth/USB-C microcontroller External EMF/magnetometer sensor Ambient temperature sensor Humidity sensor Barometric pressure sensor Light/lux sensor Battery powered if possible, or USB powered for first prototype Simple 3D-printed or off-the-shelf enclosure Live sensor readings sent over Bluetooth BLE Basic documentation so my app developer can connect it to a Flutter Android app This does not need to be a finished commercial product yet. I’m looking for a working proof-of-concept proto...
I’m building a small-scale IoT device dedicated to continuous monitoring and data collection inside a typical home. The core goal is to sense key environmental parameters, push them securely to the cloud, and expose the readings in real time for later analysis. Here’s what I already have in mind: a compact, low-power microcontroller (ESP32 or similar), Wi-Fi connectivity, and a simple set of sensors—temperature, humidity and possibly light or motion—though I’m open to strong technical suggestions. I’ll need you to design the hardware layout, write reliable firmware, and set up the data pipeline (MQTT, REST or another lightweight protocol that fits a home network). Clean, well-documented code with OTA update support is essential. Deliverables &...
I’m building a compact, battery-powered tattoo machine and need a custom rectangular PCB that can both manage the lithium...rectangular and no larger than roughly 35 mm on its shortest edge so it can slide into the existing machine housing without modifications. Deliverables • Complete schematic in KiCad, Altium, or Eagle • Optimised PCB layout (Gerber, drill, pick-and-place files) • Bill of materials with readily available components • Brief design notes covering key calculations and any firmware pin-outs if a microcontroller is used I’ll fabricate the first prototypes as soon as the files are ready, so clarity and accuracy are essential. Let me know your preferred CAD tool and any questions you have about the enclosure or motor specs, an...
...external partners who can jump in when workload or lead-times demand it, specifically for the design and prototyping stage of new products. The scope spans three tightly-linked disciplines: • Mechanical engineering – rugged enclosures, heat management, motion components • Electrical engineering – board-level design, power distribution, compliance-ready layouts • Firmware development – microcontroller code, hardware abstraction layers, rapid bring-up To make the shortlist, please share: • A concise portfolio of comparable industrial projects (photos, schematics, or code snippets are fine). • A brief outline of your toolchain—e.g., SolidWorks/Fusion, Altium/KiCad, STM32Cube/MPLAB, C/C++, MicroPython/Python, etc.—and a...
...response time, and communication reliability. - Assist with experimental validation using bench-level hardware. - Compare simulation results with real hardware measurements. - Prepare plots, tables, technical notes, and documentation for project reporting. -Support troubleshooting of embedded circuits, sensor communication, and data logging. Required Skills and Experience - Embedded systems and microcontroller-based design. - ESP32, Arduino, or similar development boards. - MATLAB and Simulink modelling. - I2C, I2S, UART, BLE, or Wi-Fi communication. - Basic electronic circuit design and testing. - Sensor interfacing, especially IMU or distance sensors. - Data collection, analysis, and performance evaluation. - Power measurement and latency testing. The Research Assistant will ...
...filtering, amplification and noise-reduction tuned for the sub-kHz band typical of these sensors. • Software-defined gain control (digital potentiometer, PGA or similar) that I can drive over I²C/SPI from my MCU. • Integrated phantom-power rail (12–48 V) with proper isolation so the analogue ground stays quiet. • ADC selection and interface logic ready for direct connection to a Cortex-M microcontroller (I²S or SPI preferred). • Schematic, PCB layout and BOM in KiCad or Altium, plus brief firmware snippets showing register settings and gain switching. • Confirmation that the final chain meets a target SNR better than 90 dB over the 10 Hz–5 kHz band when tested with a dummy hydrophone load. If you already have experience wi...
I need a complete circuit schematic and multi-layer PCB layout that handles power management duties while integrating a microcontroller, several sensors, and the necessary transistor stages. The board must be compact, reliable, and ready for fabrication, so I expect proper layer-stack definition, clear power and ground planes, and thoughtful component placement to minimize noise and heat. Please base the work in a mainstream tool such as Altium Designer, KiCad, or OrCAD so I can review the files easily. Once finished, I will require: • Editable schematic files with all nets labeled • Optimized multi-layer PCB layout • Gerber, drill, and pick-and-place files ready for manufacture • A complete BOM with manufacturer part numbers • Brief design notes e...
RFID & Arduino Prototype Developer Needed (Embedded Systems) We are looking for a skilled developer with hands-on experience in RFID and Arduino-based embedded systems. The ideal candidate should be comfortable working with RFID readers, tags, and microcontroller programming for prototype development. Experience integrating sensors, serial communication, SPI, I2C, and UART peripherals is highly preferred. You should be able to design, test, and troubleshoot both hardware and firmware efficiently. Knowledge of C/C++ programming for Arduino platforms and debugging embedded applications is required. Experience with ESP32, STM32, or similar microcontrollers is a strong advantage. Familiarity with access control, asset tracking, inventory management, or IoT applications using RFID is...
...is the trickiest part of the design — please confirm you have handled power-source arbitration/OR-ing circuits before) 4-pin JST connector for mounting (VCC, GND, SDA, SCL) — this is how it talks to the grid controller Physical switch to connect/disconnect the battery Two battery status LEDs (red = charging, green = fully charged) Voltage divider circuit to measure battery voltage from the microcontroller Optional/nice-to-have: IR LEDs, ambient light sensor Open question I'd like your input on: onboard antenna vs. antenna IC vs. external antenna connector for the ESP32 module — please advise based on the cube enclosure size (~40x40x40mm) Board 2 — Grid controller board Built around a Seeed XIAO ESP32-C3, connected to 8x PCA9548A I2C multiplexer brea...
Project Brief: Stealth-Mod...product. • The functionality must be fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). ...
...work and require only routine tools to bring to life. What I expect from you: • A concise write-up that explains the underlying concept and its practical use. • Complete schematic or wiring diagram in a common format (PDF, PNG, or Eagle/KiCad file). • Full bill of materials with part numbers that can be sourced locally or online. • Firmware or example code, if the build involves a microcontroller or single-board computer. • Step-by-step assembly and testing instructions that let me reproduce your results on the first attempt. • Photos or a short clip of the functioning prototype so I can see it works before purchasing. If your design meets these points and can be handed off immediately, send a brief overview along with confirmation that...
I have the con...fabric or silicone outer layer that can handle constant friction and occasional spills. Deliverables I expect: 1. Concept refinement with sketches or renders illustrating the attachment on a typical three-point belt. 2. CAD files, enclosure design, and full bill of materials including heating elements, battery, controller, and fastening method. 3. Electrical schematics, firmware (if a microcontroller is used), and a simple test jig for cycling through Low–Medium–High. 4. A functional prototype I can strap into my vehicle for real-world validation, plus a brief test report documenting heat curves, recharge time, and safety checks. I’ll provide feedback quickly at each stage so we can iterate fast and keep the device sleek, road-safe, a...
...turnaround flexibility — this is a personal R&D project, not a tight deadline What I'm NOT asking for at this stage No custom PCB design No polished app — basic BLE broadcast/readable values is enough No clinical calibration against a reference spirometer (I'll handle validation separately) No enclosure design/manufacturing polish Ideal background Experience with ESP32/Arduino-style microcontroller projects Comfortable with basic analog sensor wiring and BLE GATT basics Bonus: experience with simple 3D-printed enclosures (or willingness to use a basic existing enclosure design) Deliverables 5 assembled, working units Brief documentation: wiring summary, any firmware code used (open and editable, not locked), and notes on how to read the BLE o...
...store, wiring everything up, flashing the code, and testing. I prefer an ultrasonic sensor for rep detection, so please base the design around that. Keep the parts list inexpensive and compact; an Arduino-class board or a tiny ESP32 is fine as long as it stays small, battery-friendly, and easy to assemble with hand tools. What I need from you • A concise bill of materials I can buy locally (microcontroller, HC-SR04 or similar ultrasonic module, power circuit, mounting hardware, enclosure suggestions) • Step-by-step build instructions—including any soldering, 3D-printing, or off-the-shelf case mods—to secure the unit flush to the wall without wobble • Well-commented starter firmware (Arduino IDE/C++ or MicroPython) that initializes the ultrasonic ...
...most of the way done in (browser EDA). The schematic is largely wired already — I just need an experienced PCB engineer to finish it and export clean, production-ready manufacturing files for PCBWay. Everything you need is provided, so this is a focused finish-the-job task, not a from-scratch design. What's already done (I'll give you the Flux project): • ESP32-S3 (WROOM-1) microcontroller core, supporting resistors, button, boot test point — placed and wired. • Ultrasonic sensor subsystem (TI TDC1000 + TDC7200) wired over SPI with its decoupling. • Pressure-sensor ADC front-end (RC filter to the ESP...
1. Project Overview The objective of this project is to design a professional, industrial-grade custom carrier board (PCB) for a Teensy 4.1 microcontroller. The board will be used in an automotive test-bench environment to sniff data from a VAG DQ200 DSG gearbox, read high-speed engine RPM from a 3-wire Hall effect sensor, monitor real-time supply voltage via an I2C sensor, and transmit all telemetry data over an RS485 bus to an external display. CRITICAL NOTE FOR THE FREELANCER: This project covers HARDWARE DESIGN ONLY (Schematic Capture, PCB Layout, and Manufacturing Files generation). Firmware and software development are completely excluded from this scope and will be handled internally by the client. 2. Hardware Pin Mapping & Software Particulars To maintain absolute compat...
I need reliable, production-ready firmware for a new STM32-based device. The work covers everything from bringing up the microcontroller and configuring UART, SPI, I²C, GPIO, and interrupt routines, through to integrating the code into a clean, maintainable project structure. If FreeRTOS will help keep timing predictable we can use it; if not, a lean bare-metal approach is fine—either way I expect tight, well-documented C/C++. You will receive schematics, pin maps, and a high-level communication flow. In return I expect: • Complete, buildable source code (Keil, STM32CubeIDE, or another GCC-based tool-chain—your choice, just state it up front) • A flashed board that passes the agreed functional tests • Clear documentation: compile-and-flash steps...
I'm looking for an experienced PCB designer to create a multi-layer PCB for a consumer electronics project The primary components to be included are: - Microcontroller - Flyback Controller - Transformer Ideal skills and experience: - Expertise in multi-layer PCB design - Experience with consumer electronics - Proficient in using PCB design software - Knowledge of circuit design and power distribution Please provide samples of previous work and a brief outline of your approach.
...using a single laser dot. The goal is to eliminate long mechanical traversing rails and replace them with a compact positioning system. Scope of Work • Mechanical design of compact 2-axis system • Mounting concept for pick opening • Modular approach • Simple enclosure (low IP requirements) • Servo-based positioning system • Fast and smooth motion • Single-point laser system • Microcontroller-based control (Arduino or similar) • Integration with existing PLC commands (activation, referencing, position, velocity, limits) • Control software, motion smoothing, and geometry compensation • Calibration method for accurate positioning Key Requirements Working area: up to 4000 × 820 mm Accuracy: &plusm...
...millimetre of space. The single overriding goal is size reduction; cost and raw performance can remain as they are as long as nothing regresses. Scope of the optimisation • Review the existing schematic and four-layer layout. • Replace or consolidate the parts below with smaller or integrated alternatives while maintaining electrical behaviour: – Resistors and capacitors – Microcontroller – Connectors • Suggest routing, via, and stack-up changes that permit tighter clearances without breaching IPC standards. • Provide an updated BOM, annotated schematic, PCB file (Altium Designer preferred but I can import from KiCad), and manufacturing Gerbers/ODB++. Acceptance criteria 1. Total board outline reduced by at...
We are looking for an experienced Embedded Hardware & Firmware Engineer to assist with the development of a custom electronic product from concept to prototype. Scope of Work Design a reliable multi-layer PCB for a custom embedded device. Select appropriate components based on performance, cost, and availability. Develop firmware for a modern microcontroller (such as ESP32, ARM Cortex, or similar). Implement communication interfaces including UART, SPI, I2C, CAN, USB, or Ethernet where applicable. Integrate sensors, wireless connectivity, and peripheral devices. Debug hardware and firmware issues during prototype development. Prepare production-ready design files, schematics, BOM, and documentation. Support prototype testing and manufacturing. Required Skills Strong experience ...
We are an established industrial manufacturing firm seeking an experienced Electronics and Embedded Systems Engineer to design and program a microcontroller-based control system for an electronic control panel. The system will govern critical machine operations and must be robust, reliable, and designed for an industrial environment. Core Technical Requirements: Microcontroller (MCU): [Specify preferred MCU if you have one, e.g., PIC, STM32, Arduino/AVR, ESP32] or recommend the best fit for industrial stability. Inputs/Interrupts: The system requires 5 distinct hardware interrupts. Logic Levels: The input signals will be coming from standard industrial peripherals (limit switches, thermostats, proximity sensors, etc.) operating at 12V or 0V. The hardware design must include ...
I need a custom control board built around the ESP32 for an upc...consistent and well-documented. Deliverables • Complete schematics • Optimised PCB layout (4-layer if you believe it is warranted) • Gerbers, drill files, and pick-and-place data • Detailed BOM with supplier links and alternates • Any design notes or calculations that will help during review and production To be considered, please point me to at least one previous ESP32 or comparable microcontroller board you have taken to production, highlight any industrial communication work (RS-485, Modbus, etc.), and give an honest estimate of turnaround time. Once this hardware milestone is complete, I’m planning firmware development and future revisions, so a solid result here can tur...
...drives the water-jets and handles the LED lighting. What I now need is a production-ready printed circuit board that brings all of this together cleanly and reliably. The core of the design is an MCU (currently an Arduino-class microcontroller) plus a handful of sensors. The firmware is stable, the pin-mapping is fixed, and the schematic is drawn—your task is to turn this into a compact, manufacturable PCB that I can send straight to fabrication. You will receive: • the current schematic in PDF and KiCad format • the pin-out and footprint of the chosen microcontroller • a list of the temperature and pressure sensors already tested with the code • mechanical constraints of the housing inside the whirlpool control box Please return: &bu...
Hardware Requirements Specification Project: Custom High-Performance Flight Controller PCB 1 Core Processing & Architecture • Microcontroller (MCU): STM32H7 Single-Core High-Performance Series (100-pin or 144- pin LQFP/BGA package configuration). Core architecture must feature an ARM Cortex-M7 running at up to 480 MHz with a double-precision Floating Point Unit (FPU). • Debugging Interface: 1x standard SWD debug port (GND, SWDIO, SWCLK, 3V3) brought out to dedicated test points or a low-profile header. 2 Memory & Storage Architecture • Configuration Parameter Storage: 32 Mbit (4 MB) Ferroelectric RAM (FRAM) non-volatile memory. Must be dedicated to critical parameter storage and real-time state saving due to its ultra-high endurance and zero write-delay capabi...
...looking for an experienced Embedded Systems/IoT developer to complete a Smart Fish Tank project within 24 hours. Please apply only if you are confident you can meet this deadline. Project Overview The Smart Fish Tank is an IoT-based automated aquarium monitoring and control system designed to maintain a healthy aquatic environment with minimal human intervention. The system uses an ESP32 microcontroller to collect real-time data from multiple sensors and automatically control various aquarium devices based on predefined conditions. Required Features ESP32-based system development Integration of the following sensors: Water Temperature Sensor pH Sensor TDS Sensor Dissolved Oxygen Sensor Ultrasonic Sensor (Water Level) Automatic control of: Water Pump Fish Feeding Me...
I want to build a highly minimalist, budget-friendly desktop robot that tracks a person's face in real time. This is Phase 1 of a larger project; the goal here is strictly to build the pan-tilt tracking base using low-cost components. The robot will use a camera to follow a user's movements left/right and up/down. Hardware Framework (Low Budget): Microcontroller/Camera: ESP32-CAM Actuators: 2x SG90 Micro Servo Motors (for Pan and Tilt) Chassis: Minimalist 3D-printed or basic off-the-shelf pan-tilt bracket. Brain: A local computer running the tracking logic, communicating with the ESP32 over Wi-Fi. Software Architecture & Requirements: Video Streaming: The ESP32-CAM must stream its video feed over the local network to a Python environment. Computer Vision (Pyth...
Do NOT bid unless you read the physical presence requirement! I need an experienced microcontroller developer to create a realtime process control system using a state machine. This system will be responsible for: - Sequential task execution - Event-driven responses - Timed operations The solution will run on a realtime operating system (RTOS). Ideal Skills and Experience: - Proficiency in microcontroller programming - Experience with realtime operating systems - Strong knowledge of state machines and process control - Ability to design and implement robust event-driven systems - esp32 and freertos - no internet will be used in the final product - requires physical weekly meeting in Melbourne fl Please include relevant experience in your bid.
...Embedded Firmware Engineer (TI C2000, Sensorless FOC) Title: TI C2000 Firmware Engineer — Sensorless FOC for PMSM Motor Drive Category: Embedded Systems / Firmware Development Budget type: Hourly recommended (₹900–1,500/hour, $11–18/hour) Description: We need an embedded firmware engineer to implement Field Oriented Control (FOC) and Voltage Oriented Control (VOC) algorithms on a TI C2000 microcontroller (F28379D, dual-core) for a custom motor drive controller. SCOPE OF WORK: - Port Simulink-validated FOC algorithm (Clarke/Park transforms, PI current/speed loops, SVPWM) to C2000 firmware - Implement sensorless back-EMF Luenberger observer for rotor position/speed estimation (motor has very low native inductance ~27.5µH, external phase inductor...
...programmable face, shoulder and trigger buttons (an onboard MCU that supports remapping or simple macro storage will do) • A small Li-ion pack with safe recharge circuitry so the pad can power itself in Bluetooth mode Two delivery scenarios are acceptable. Ideally you supply a working, tested prototype. If that timeline or budget proves tight, a complete circuit schematic plus firmware source, microcontroller code, and a line-item bill of materials (including Indian part numbers and vendor links) is enough for me to assemble and flash locally. Please make sure every component in the BOM is available in common Indian online stores and that the combined cost stays within the ₹3,000 ceiling. Documentation should be clear enough for another electronics hobbyist to reproduce ...
