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Overview I’m looking to develop a robust UART to UDP bridge on STM32 for handling large binary frames and NMEA data. The aim is to enhance data transmission reliability between devices. Scope of work - Develop a UART RX system with DMA and ring buffer on STM32 for lossless data reception. - Implement UDP TX using LWIP for sending data over UDP with configurable IP and port. - Handle large frames by sending in single datagram or using fragmentation protocol (frame_id, chunk_index, total_chunks, crc) for payloads around 10KB. - Optional: forward NMEA data on a separate UDP port. - Deliver complete CubeIDE project and documentation. - Test and verify UDP reception with log/pcap/wireshark or video to prove valid frame transmission. Additional information I’ll accept delivery a...

I already have a working PCB built around an Xsens MTi-630 IMU and an NXP MKV56 microcontroller. What I need now is a technician who can revise the existing firmware so the remote camera head delivers rock-solid motion compensation on set. Your task is to design and embed a custom sensor-fusion routine that blends gyro, accelerometer, and magnetometer data from the MTi-630, then feed that fused orientation into the motor-control loop over CANopen. I’m aiming for a balanced mix of speed and accuracy so operators never feel lag yet still enjoy drift-free performance during long takes. You will be starting from my current codebase (MCUXpresso / NXP SDK), which already handles basic hardware abstraction and CANopen messaging. The focus is on: • Writing or adapting a quaterni...

I need an experienced electronics/PCB engineer to design a reliable, 24/7-operating traffic light controller PCB. This is a safety-critical system (not a hobby project). SYSTEM: • MCU: ESP32 • Load: 220VAC traffic light LED modules • Outputs: ~19 relay-controlled channels • Operation: Continuous (24/7) RELAY CONTROL: • Relay outputs driven via 74HC595 shift registers (SPI-style) • 3 × 74HC595 chained • OE pin must have hardware pull-up (outputs OFF at boot) • ESP32 enables outputs only after startup • Relay drivers with proper flyback protection FAILSAFE / SAFETY: • Master relay/contactor that cuts power to ALL lamp outputs • Must drop on: - ESP32 crash - Watchdog timeout - Power instability • Safe power-up and fail...

Peace be upon you. I want a complete explanation of the operational amplifier circuit, with practical implementation from scratch using transistors, and building it in simulation. I am looking for an experienced engineer who is strong in electrical physics. It is required that the person speaks Arabic fluently because I am weak in English.

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I'm looking for an experienced programmer to develop RF modules based on MTK chips. The primary functionality required is signal reception, specifically for digital signals. This project extends to firmware modification for new hardware of the F21 Pro model, adapting it to work with US bands and ensuring wide usability. Key Requirements: - Modify NV data in the firmware to suit the new chipset (likely running on LWTG) and adapt this file for US band compatibility. - Ensure the firmware can be flashed easily to multiple phones and that a complete backup source file is provided. - Conduct thorough compatibility testing for the firmware. Ideal Skills and Experience: - Strong background in RF engineering and programming. - Expertise with MTK chipsets and NV data modifications. - Experie...

I'm seeking an expert to identify and prove the frequency band and source of an unwarranted radio signal in my home. I suspect it might be coming from a radio tower or possibly through my cordless phone acting as an unknown receiver. Requirements: - Identify the specific frequency band of the unwanted signal - Determine the exact source of the signal - Assess the impact on my home environment Skills and Experience: - Expertise in radio frequency analysis - Experience with signal detection equipment - Knowledge of electronic devices and their interference patterns - Ability to provide a detailed report of findings

I have a production-ready, IGBT full-bridge welding inverter that already powers both TIG and MMA processes, yet the embedded side still needs a final expert pass before release. The control board is built around 8051 and STC MCUs running Keil C51 firmware, and every line of code directly shapes arc stability, HF start, AC balance, soft-start, and safety interlocks. The short-term goal: review, tidy, and extend the existing code so it drives the power stage flawlessly in TIG and MMA, AC and DC. That means refining PWM timing, gate-drive dead-time, current-feedback filtering, and all the little state-machine details that separate a decent welder from a great one. Core tasks and deliverables • Audit the present C51 codebase, flagging race conditions or timing pitfalls. • Im...

I want to commission a purpose-built high-frequency trading engine focused exclusively on stocks and driven by a momentum strategy. The system must ingest real-time streaming market data, react in microseconds, and execute orders with minimal slippage. Key expectations • End-to-end architecture: ultra-low-latency market data capture, signal generation based on momentum indicators, smart order routing, and risk controls. • Exchange connectivity: direct API or FIX gateways to major equity venues; the code has to be exchange-agnostic enough to let me plug in additional venues later. • Deterministic performance: consistent round-trip times under heavy load, with benchmarks and profiling evidence. • Safety nets: position limits, kill-switch, and detailed logging tha...

Job Description (Requirements Only) We are seeking a highly experienced embedded systems and drone software engineer to help develop a next-generation, proprietary drone show platform. The ideal candidate must have deep expertise in flight control firmware, UAV swarm systems, and hardware-level integration. Required Qualifications Extensive experience with PX4 firmware development Strong background in embedded systems (C/C++) Proven experience working with UAV flight controllers Deep understanding of MAVLink protocol and flight control architectures Experience integrating GPS/RTK systems (Ublox preferred) Experience with PWM output control and hardware-level signal integration Experience designing safety-critical systems and fail-safe logic Strong knowledge of swarm drone coordin...

I need a compact, production-ready PCB that reliably converts an EDP 1.2 video stream into a MIPI CSI-2 output so I can interface an existing embedded panel with a camera-centric SoC. The job is purely about signal conversion; no additional processing or scaling is required. The core of the work is selecting a proven EDP-to-CSI bridge IC, building a clean high-speed schematic around it, and laying out a board that respects all impedance and length-matching rules for both the EDP and CSI-2 differential pairs. Please keep the stack-up simple enough for standard 4-layer manufacturing while still meeting the 100 Ω/90 Ω requirements. To speed integration on my side I also need the power-tree designed, the necessary reference clocks routed, and all test points clearly labelled fo...

Project Description: I am looking for an experienced Flutter developer to build a PPG (Photoplethysmography) mobile application. I already have a fully functional web-based version (Javascript/Browser) that captures pulse and stress levels via the webcam. I need this ported to a native Flutter app to achieve medical-grade accuracy using better hardware control. The Goal: Turn the phone’s camera and flashlight into a sensor to measure: Heart Rate (BPM) HRV (Heart Rate Variability - SDNN) Stress Index based on RR-Intervals. Key Deliverables: Camera Sensor Module: Implement the Flutter camera package to stream raw image data. Crucial: Must handle "Torch Mode" (Flashlight ON) and Lock Exposure/White Balance to prevent signal noise. ...

I already have the full Bill of Materials and a set of clear reference photos; what I still need is a production-ready PCB layout that ties everything together. Your task is to handle both the component placement and the complete routing of a balanced audio driver board that runs from a single 5 V input and generates ±12 V rails internally. There are no fixed dimensions, so you can choose whatever outline best supports clean signal paths and sensible power-ground separation. The only mandatory hardware interface is XLR—please keep the footprint orientation practical for panel mounting. Preferred deliverables • Editable design files in KiCad, Altium,—or another mainstream tool that supports Gerber export • Gerber, drill, pick-and-place, and centroid files re...

*** Time Sensitive*** Need a rebuttal to "Big name's" engineer regarding the location and placement of an antenna for a cell tower. My primary concern is signal reach, and I'm looking for expert input on where placement is best for maximum impact. Ideal skills and experience: - USA licensed RF Engineer (State of Kentucky) - Expertise in telecommunications and signal distribution - Experience with antenna placement and optimization - Strong analytical skills to assess and improve signal reach - Ability to provide a detailed and professional rebuttal Please provide a well-researched and convincing argument. We are a fairly rural community with lots of acreage where an antenna would have low to no impact on people's homes. Cell company has applied to place an ant...

Project: Finalize real-time joystick controller (PID/MPC tuning, smooth tracking, stability) We have an application that is nearly complete. The remaining work is the joystick control layer: converting tracking error into smooth, stable analog stick commands (RX/RY) in real time. This is NOT a computer vision model training job and NOT a machine learning task. Detection/tracking and state estimation are already implemented. The work is primarily control engineering + signal shaping + real-time tuning. What you’ll do Improve RX/RY command generation for fast acquisition and smooth steady tracking Reduce jitter, stick-slip, overshoot, stalls, and inconsistent corrections under noise/latency Tune and/or redesign: error normalization & scaling response shaping (curves, tanh/l...

I’m working on an STM32H7 design and I need the ST Acoustic_SL middleware added cleanly to my firmware so I can start experimenting with the Sound Localization feature right away. The CubeMX-generated project is already set up and building under STM32CubeIDE; what’s missing is a fully integrated Acoustic_SL stack (latest release) with all required dependencies, paths, and initialization code. Here’s what I’m expecting from you: • Import Acoustic_SL into the existing STM32H7 project and resolve every include, linker, and memory-map requirement. • Provide a minimal example (e.g., mic array capture + X-Y angle printout over UART) that shows Sound Localization working on real hardware. • Supply a short read-me that explains any CubeMX tweaks, middl...

I’m looking for a MATLAB / Simulink specialist located in Pakistan to collaborate on several engineering assignments that span control-system design, signal-processing algorithms, and power-system studies. For each task I’ll provide the raw specifications—plant data, performance targets, or measured signals—and I need you to turn them into well-structured Simulink models, accompanying MATLAB scripts, and succinct technical notes that explain your approach and key results. Typical work will involve: • Building or refining dynamic models from first principles or experimental data • Designing and tuning controllers (PID, state-space, adaptive, etc.) • Implementing signal-processing blocks for filtering, estimation, and fault detection • Ru...

Project Overview I need a Python developer to build a modular trading system where: ✔ BUY strategy works independently ✔ SELL strategy works independently ✔ Both use stock list from Chartink ✔ Strategies are structured to run on AlgoTest Market Scope: • Indian stocks from NSE • Nifty 200 + FnO • Intraday (1-min / 10-min) Module 1 — Scanner Input Fetch stock list from Chartink scanner Auto refresh at defined interval Module 2 — BUY STRATEGY ENGINE Handles only long trades. Examples of rules: Price above VWAP (2 candle close) previous day breakout % calculation First 10-min breakout Entry, SL, Target logic Output: BUY signals only Module 3 — SELL STRATEGY ENGINE Handles only short trades. Examples of rules: Price below VWAP Breakdown p...

I already have the hardware in hand (see the exact unit here: ) and need it configured into a rock-solid link for a DJI Matrice 400. The goals are simple but non-negotiable: • The device must pair over Bluetooth with smartphones and tablets, then feed telemetry and video to the Matrice in real time. • The whole chain has to stay online even when nearby frequency jammers or other RF noise are present. • Live status dashboards and alerts are required so I can see, at a glance, that every hop in the link is healthy. Here’s how I picture the collaboration: 1. You review the hardware specs and choose the most resilient protocol settings (frequency-hopping, spread-spectrum, encryption, power levels, antenna layout, etc.). 2. You walk me through the exact configurati...

Iam developing a high-quality stereo to 5.1 surround audio processor based on Analog Devices ADAU1701 DSP using SigmaStudio. The goal is to achieve professional-grade surround decoding similar to Dolby Pro Logic II / automotive surround processors, with strong emphasis on: Clear center dialog extraction Instrument-rich front left/right and voice reduced almost zero (ducking concept) but instruments remains same Clean surround ambience extraction Stable behavior across different source volumes and content quality I am looking for an experienced DSP engineer who can help finalize and optimize the audio processing algorithms. Our Youtube Channel link for reference :

I need a miniature sine-wave transmitter board. I will supply the exact antenna footprint and the precise target frequency (it will be somewhere below 100hz, specified down to the decimal). Your task is to design a PCB smaller than 2 cm × 2 cm that generates a clean, low-distortion sine wave, feeds it to the antenna, and runs for at least one month on a single CR2032 coin cell. It has step sweep formula Long-term frequency stability, minimal harmonic content, and ultra-low power consumption are critical. Feel free to use discrete components, a low-power MCU with DAC, a numerically controlled oscillator, or any other architecture that can hit the spec while staying inside the tight footprint and power envelope. Deliverables • Complete schematic and PCB layout (KiCad, Altium...

I am ready to move fast on a custom sonar project built around STM32 hardware (CubeIDE + HAL). Your task is to create production-grade firmware that: • Captures long-range sonar returns through the onboard ADC and a TUSS4470 (or comparable) front-end, with signal conditioning tuned for maximum range performance. • Streams that data in real time using a compact, binary UDP protocol—both transmit and receive paths—so it plays nicely with an existing mobile-app protocol. • Listens for run-time commands such as gain adjustments, start/stop, mode selection, and ping-rate changes, then acts on them immediately. Deliverables I need: 1. Well-documented STM32 firmware source code. 2. A clear protocol reference (frame layout, timing, byte ordering, command set). ...

Project Overview I need a Python developer to build a modular trading system where: ✔ BUY strategy works independently ✔ SELL strategy works independently ✔ Both use stock list from Chartink ✔ Strategies are structured to run on AlgoTest Market Scope: • Indian stocks from NSE • Nifty 200 + FnO • Intraday (1-min / 10-min) Module 1 — Scanner Input Fetch stock list from Chartink scanner Auto refresh at defined interval Module 2 — BUY STRATEGY ENGINE Handles only long trades. Examples of rules: Price above VWAP (2 candle close) previous day breakout % calculation First 10-min breakout Entry, SL, Target logic Output: BUY signals only Module 3 — SELL STRATEGY ENGINE Handles only short trades. Examples of rules: Price below VWAP Breakdown p...

I need a Python-driven solution that can reliably spot both ferrous and non-ferrous metals during industrial inspections. The detector will be deployed in mixed environments—sometimes on the factory floor, other times out in the yard—so the software must remain accurate despite changes in temperature, humidity, and electromagnetic noise. I already have the basic concept in mind but I’m looking for an experienced developer who can: • Select or interface with suitable sensor hardware (commonly used coils, Hall-effect, or EMI probes—happy to discuss alternatives). • Write clean, well-documented Python code that reads the sensor data in real time, filters out environmental noise, and flags detections with minimal latency. • Provide a simple calibrat...

I need a Python-driven solution that can reliably spot both ferrous and non-ferrous metals during industrial inspections. The detector will be deployed in mixed environments—sometimes on the factory floor, other times out in the yard—so the software must remain accurate despite changes in temperature, humidity, and electromagnetic noise. I already have the basic concept in mind but I’m looking for an experienced developer who can: • Select or interface with suitable sensor hardware (commonly used coils, Hall-effect, or EMI probes—happy to discuss alternatives). • Write clean, well-documented Python code that reads the sensor data in real time, filters out environmental noise, and flags detections with minimal latency. • Provide a simple calibrat...

I'm looking for an experienced embedded engineer to develop a diagnostic medical device. The device will analyze patient vitals in real-time. Key Requirements: - Experience in developing medical devices, particularly diagnostic ones - Expertise in real-time data analysis - Proficiency in embedded systems and sensor integration - Knowledge of regulatory standards for medical devices Ideal Skills: - Background in biomedical engineering - Strong programming skills, especially in C/C++ - Familiarity with data processing algorithms - Ability to work collaboratively with a multidisciplinary team Please provide relevant experience and approach to the project.

OVERVIEW The United Nations Development Programme (UNDP), the Seeker for this Innocentive Challenge, is searching for creative, affordable solutions that can safely detect and mark the presence of underwater explosive ordnance. In conflict or post-conflict zones, vast quantities of explosive ordnance (EO) lie submerged in oceans, lakes, rivers, and coastal waters. From post-WWII dumping to modern conflict spillover, these extremely hazardous explosives jeopardize the lives, livelihoods, and environments of nearby communities. UNDP is particularly interested in solutions that can be safely used by members of these communities, empowering them and enabling widespread knowledge of these dangers without requiring military or high-cost commercial interventions. The ideal solution will allow ...