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The latest spin of my automotive-grade sensor board works, but a few components have shown reliability issues in the field. I need a hardware engineer to review the current BOM, swap out the failing parts, route the new board, and verify the board is sound again. Targeted components 1. Connectors. 2. Diodes. 3. Oscillators. Details will follow. Acceptance A revised project archive (schematic, PCB, updated BOM) and a confirmation that the new connectors, diodes, and oscillators perform within spec. The freelancer should be open to conduct voice and/or video calls.

I’m working with a Diode Laser Board and I need a custom receiver that can plug into that setup, track the machine’s positioning in real time, and instantly flag any faults it detects. The idea is to have continuous monitoring so I can see where the laser head is at any moment and receive automatic alerts if something drifts out of spec or a component misbehaves. Ideally, the receiver will take positioning data straight from the board, process it with minimal latency, and expose a simple interface—serial, USB, or another protocol you recommend—so the data can be displayed live on a host PC or microcontroller dashboard. Reliability is critical, so built-in error detection should cover signal integrity, unexpected motion, and any other obvious fault conditions you id...

Objective: The goal is to design and develop functional prototype AFE(Analog Front End)/pulser-receiver system that can directly interface with any raw underwater transducer (200KHz to 1MHz) and deliver full echo-profile data to a Raspberry Pi. Description: I am looking for an experienced analog electronics / ultrasonic / sonar engineer to design and develop (physical device) a custom electronics board (AFE) to interface with a raw underwater ultrasonic transducer. The board will interface directly with a raw piezoelectric ultrasonic transducer and provide the complete transmit and receive signal chain. The transducer we are using is: The basic architecture is: Piezoelectric Ultrasonic Transducer ↔ TX/RX Front End ↔ ADC ↔ Raspberry Pi / Processor Required Electronics The...

# TECHNICAL REQUIREMENTS ## VHF SAME Receiver and AFSK/FSK Demodulator **Document:** RT-RF-SAME-001 **Revision:** 1.1 **Application:** EAS-SAME/SASMEX Signal Receiver **Target Frequency:** 162.425 MHz **Operating Band:** 162.400–162.550 MHz --- ## 1. OBJECTIVE Design and develop an electronic module capable of receiving the VHF signal at **162.425 MHz**, demodulating the NFM transmission, recovering the baseband signal, and demodulating the **AFSK/FSK data used by SAME (Specific Area Message Encoding)**. The module shall cover the complete signal chain: **Antenna/RF Input → RF Filtering → VHF Receiver → NFM Demodulation → Baseband Conditioning → AFSK/FSK Demodulation → Digital DATA_OUT** The final output shall be ready for connection to an extern...

Request for a Custom Pre-Configured CAN/CAN-FD Gateway for EV BMS Development and Testing I would like to request a quotation for a complete, standalone CAN/CAN-FD gateway system. I am looking for a device that can be connected between the vehicle and the OBD connector using an OBD interposer, and that can operate independently without a PC using pre-loaded configurations. The main purpose of the system is development and testing of battery/BMS CAN communication in electric vehicles. The vehicles I would like to support are: * Tesla Model 3 * Tesla Model Y * Kia e-Niro * Hyundai Kona Electric * Volkswagen ID.3 * Volkswagen ID.4 I will provide the exact model years for each vehicle at the beginning of the project. Required functionality * At least 2 independent CAN/CAN-FD channels *...

I'm seeking an ultrasound engineer that is knowledgeable in regard to immersion transducers for biomedical purposes. I have currently have quotes for components but need to ensure compatibility between systems.

Project Title MATLAB/Simulink Tutor Needed for PMDC Motor, Fan Load and PID Control Project Project Description I am looking for an experienced MATLAB/Simulink tutor to provide technical guidance for a university electromechanical systems project involving a permanent-magnet DC (PMDC) motor, an industrial fan load, and PID speed control. This is a tutoring and technical-support project. I must personally complete and submit the assessed work. The freelancer should explain the modelling process, help identify errors, review my independently prepared model and results, and provide constructive feedback. The freelancer must not write or submit the final assessed report on my behalf. Topics Covered The project includes: Developing a PMDC motor model in Simulink from its electrical and mechanic...

I want a LabVIEW-based curve tracer that mirrors the behaviour of the Digilent WaveForms instrument but runs entirely inside LabVIEW while talking to my Analog Discovery 2. The program must sweep a user-defined voltage across a device, sample the resulting current and voltage, and plot the I-V curve in real time. Primary test focus is on resistors, yet it should also cope with simple LED measurements so the code isn’t locked to a single device type. Please make the sweep limits and step size configurable so I can adapt quickly to different resistor values or LED forward voltages. The interface needs to feel as quick and informative as WaveForms, with one extra twist: I need reliable data-export options (CSV at a minimum) straight from the GUI so I can toss results into Excel or...

Need PHD guidance for student of VLSi on Optimization of Hetro junction Tunnel field effect Transistor for nano VLSI applications. From identifying Research Gap to final results. Work to be carried out in Silvaco Tcad

I have a piezo-based wet/dry sensor concept that relies on tracking resonance changes in a PZT ceramic between 20 kHz and 500 kHz. When the tip is in air the vibration is high-Q with a large voltage swing; when any liquid covers it the amplitude drops, the Q-factor falls, and both phase and resonant frequency shift. I now need an electronics specialist who can turn this working principle into a repeatable, field-ready solution. The job covers selecting the drive topology, designing the analog front-end, and implementing a small digital section that continuously excites the ceramic, samples the returning signal, and decides “wet” or “dry” in real time. Accuracy, low noise, and robust thresholding against temperature or viscosity changes are essential. Delive...

I am building a free-space optical communications platform and need a complete pointing, acquisition, and tracking software package that can consistently maintain sub-degree alignment between my optical terminal and a remote node. Core expectations • Pointing accuracy: better than 0.5° under nominal environmental conditions; 100% uptime once locked. • Communications interface: native Ethernet/IP for command, telemetry, and reporting status. • Platform: x86/Linux preferred; however, I can compile on other POSIX systems if the code is portable. Your solution should include: 1. Real-time control loop that accepts attitude sensor data (e.g., IMU, encoders) and drives two-axis galvanometers and a MEMs array. 2. Acquisition logic capable of coarse scan, fine sc...

I have an ultrafast-laser–written waveguide already modelled in RSoft (the .dat structure file is ready), yet every attempt to launch light through it in BeamPROP ends with complete loss of signal. I need an RSoft specialist who can open my file, set up the correct input field and boundary conditions, run the propagation and show where the power is disappearing. Your task will be to: • Configure the launch conditions so the field actually couples into the guide. • Optimise any parameters necessary in geometry or materials to remove the loss of signal (mode mismatch or other distortion could be contributing). • Deliver screenshots, the corrected RSoft project file and a brief note explaining what you changed so I can reproduce the result. When you reply, focus...

I need a freelancer to help locate the source of radio signal interference in an urban environment. Requirements: - Use triangulation techniques to pinpoint interference source - Work in complex urban settings with potential obstructions - Provide detailed reports on findings Ideal Skills: - Experience with radio frequency (RF) technology - Familiarity with urban signal behavior - Strong analytical and reporting skills

I need robust, well-documented firmware that lets an ESP8266 on the Arduino platform both send and receive infrared commands for multiple air-conditioner remotes. Serial command-line interaction over USB or Telnet is all that’s required; no web or mobile interface is necessary. Core tasks • Build or adapt an Arduino-compatible sketch that scans incoming IR frames, decodes them, and logs the raw timing as well as the decoded protocol and data. • Implement a complementary routine that allows me to replay captured frames or craft new ones from the command line, then transmit them through an IR LED with correct carrier frequency and timing precision. • Structure the code so adding or tweaking protocols is straightforward—I will be experimenting with a variet...

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Description I am looking for someone experienced in EEG data analysis using MATLAB and FieldTrip to provide analysis support for a university research project investigating the effects of attentional load on multisensory integration (MSI). I have already completed data collection and have the raw EEG data in BrainVision format (.eeg, .vhdr and .vmrk) for multiple participants. The experiment includes auditory (A), visual (V) and audiovisual/bimodal (AV) stimuli. Participants also completed an N-back manipulation involving 0-back, 1-back and 2-back conditions, which is being used to manipulate attentional/cognitive load. The overall aim is to investigate whether multisensory processing/integration changes depending on attentional load, using behavioural and EEG measures. I am looking f...

I need a MATLAB expert to analyze EEG data from a research experiment. Key requirements include: - Experience with various EEG analysis techniques, especially ERP, frequency, or connectivity analysis. - Proficiency in EEG signal preprocessing like filtering, artifact removal, normalization, and epoch extraction. - Ability to handle and interpret complex datasets. - Strong background in neuroscience or related fields is a plus. Please provide detailed analysis methods and tools you plan to use in your bid.