DSP Expert for Stethoscope ANC
I am refining the next-generation version of our digital stethoscope and the priority is adding robust active, adaptive noise-cancellation that can cope with th...
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Custom PCB for Very Simple Dual Pump Control
I need a small, custom-designed PCB board to control two small pumps for a liquid distribution system. The pumps will handle water and will be operated using a...
Read moreProduct Design with PCB Expert
I'm seeking assistance in designing a product that incorporates a PCB. While the specific functionality and form factor details are flexible, the focus is on cr...
Read moreSignal Processing Amplifier Repair
I have a signal processing amplifier board that is not providing any amplification or signal output. I am looking for an expert in India who can urgently repair...
Read moreDesign Valve Controller PCB
Valve Controller PCB Requirements v2.0 – Agriscience Aligned Project: Agriscience IoT – Smart Valve Controller Node Goal: Design a solar-powered, low-power, LoR...
Read moreClass D Amplifier and PSU Design
Project: Design & Prototype of Class D Mono Amplifier (600W & 800W) with Matching Power Supply We are seeking an experienced Electronics Design Engineer to deve...
Read moreSimple DAC Integration on PCB
I have a simple, already-routed PCB that needs one last feature before I can send it to JLCPCB: a single-channel digital-to-analog converter (DAC) capable of dr...
Read moreElectrical Machines Coursework & Project Tutor
I’m in the final stretch of my Electrical Engineering course and need focused, one-to-one help. The subject giving me the most trouble is Electrical Machines—sp...
Read more3-Phase NPC Inverter Design
I'm looking for an experienced electrical engineer to design a 3-phase NPC inverter with a power rating of 500W. This inverter will be used primarily for a labo...
Read morePro In Ear ANC Circuit
I’m building a pair of in-ear headphones that must rival the best studio cans when it comes to silence, so I need a complete Active Noise Cancelling circuit eng...
Read moreKiCad Industrial Control PCB Design
CAD: KiCad v9 Stack-up: 4-layer minimum (Signal / GND / Power / Signal). Use 6-layer only if routing/thermal demands. Temp rating: Operate −40…+105 °C (select 1...
Read moreNFC Pressure Sensor PCB Finalization
I already have a working proof-of-concept for a tiny, battery-free pressure sensor that sits on a flexible PCB and chats with a coin-sized rigid reader board ov...
Read moreZlecę prototyp wzmacniacza 100W 14-24ohm 1khz-500khz
Zlecę zrobienie prototypu wzmacniacza na tranzystorach (ew. opampy) lub ewentualnie modyfikację jakichś chińskich gotowców, o ile ktoś wie, że będzie szybciej i...
Read moreLong-Range RFID Reader Design
I need help designing a long-range reader that can reliably interrogate both HDX and FDX tags such as is used in animal tracking. Typical solutions have very sh...
Read moreElectrical Engineering Innovation Projects
We are expanding our Electrical Engineering Team and looking for 5 to 7 skilled freelancers to collaborate with us on a variety of ongoing and upcoming projects...
Read moreClass D - DSP Amplifier PCB Design
I need a medium-sized Class D DSP amplifier designed for audio playback on Studio Monitors. The PCB will support: DSP Features: - Room correction - Phase alignm...
Read moreSemester-3 Electronics Problem Solutions
I have a bundle of pre-existing numerical problems drawn from a third-semester B.E. syllabus and I need clear, fully-worked solutions. The set spans the usual a...
Read morePhoto-Crystal Analog Computation R&D -- 2
I am advancing a solid-state analog computer that relies on an etched crystal, a single 555-timer–driven flyback stage, and three orthogonally placed electromag...
Read morePhoto-Crystal Analog Computation R&D
I am advancing a solid-state analog computer that relies on an etched crystal, a single 555-timer–driven flyback stage, and three orthogonally placed electromag...
Read moreHigh-Speed Piezo Sensor Reader -- 2
Several hundred piezoelectric strain gauges will be bonded in a 6 m × 50 mm ribbon-like array. I want to sample the whole field every few milliseconds yet keep...
Read moreEGS002 Module - Inverter expert
Looking for someone that has built an inverter using EGS002 module to help with some issues we running into. Must be a power system expert
Read morePCB Design for High-Current DC Motor
I need a PCB designed to interconnect with an old DC motor rated at more than 15A. The voltage rating of the motor is not standard (60VDC). Requirements: - Desi...
Read morePCB Design for 24V DC Motor Controller
I would like to request your PCB Design Service for a project: a 24 V / 5 A motor controller for a small electric scissor lift platform (max. 25 kg load, base 2...
Read more24V to 240V Converter Design with BMS
I need a skilled engineer to design a PCB and software for a portable device that converts DC 24V to 240V. The device should have an integrated battery charger...
Read moreRF Keyless Repeater Development
Kann jemand Keyless Repeater bauen?
Read morePulse Stretching Circuit Design
I'm looking for an experienced electronics designer to create a circuit that can take a 10–50 µs pulse (1–10V at ~1 Hz) from a photo-transistor, stretch it to a...
Read moreProton Precession Magnetometer Circuit Design
Looking for an expert to design a circuit for my project, which is a Proton Precession Magnetometer. Order flow is as follows; -polarizing pulse which energizes...
Read moreAndroid POS App for Charging Kiosk
I need a point of sale Android app to control a USB charging port for a self-service kiosk. Users can charge their mobile devices by tapping a debit card or ent...
Read moreBasic PCB Design for Junction Box
I'm seeking a freelancer to design a basic PCB for a simple electrical junction box. The junction box will be used to connect analog components. Requirements: -...
Read moreArduino Shield for MAX4619 Power Glitching
I need an Arduino shield adapted from Raspberry pi to interface with a MAX4619CSET for power glitching. A schematic will be provided. Requirements: - Capable of...
Read moreImprove Basic Electronic Trigger Circuit
I have a basic electronic circuit design to trigger a LOW-HIGH-LOW signal from a PIR device. The trigger is not enough to to activate the required integrated ch...
Read moreRF Circuit and PCB Design
I need an experienced designer to create an RF circuit and PCB for communication purposes. The circuit will operate outside the typical frequency ranges and wil...
Read moreHigh-Frequency RF PCB Design
I'm looking for an experienced RF PCB designer to create a medium-sized (10-50 cm²) PCB for a SAR sensor application. The primary application is yet to be defin...
Read moreFlame Scanner Sensor Card Amplifier Board using LOG114 and VTB5051H Photo Diode
Looking for Analog Engineer to develop schematic of Flame scanner module using LOG114 precision trans-impedance amplifier and the VTB5051H photodiode for an ind...
Read moreCreate Introductory Electronics Materials
I need a complete, self-contained learning package that walks a beginner through the foundations of electronics, starting with signal basics all the way to spec...
Read moreKicad PCB Design for Radio
I'm looking for an experienced PCB designer to create a PCB using KiCad9. The components and their footprints are detailed in the Schematic Diagram file, which...
Read moreDual-Camera Module Schematic. Design
I'm seeking an experienced PCB designer to create a schematic for a dual-camera module incorporating two image sensors. Key Requirements: - The design must incl...
Read morePCB Design for Circular Device
I need an experienced Electronic Engineer to design a PCB with a 20mm diameter for a consumer electronics device. The PCB must be circular. Key requirements: -...
Read moreHigh-End Tube Amplifier Schematic Design -- 2
Project Goal I am looking for an electronics designer with proven experience in high-end tube amplifier design to create a complete, precise, and build-ready sc...
Read moreSME Electrical Engineering Needed for Content Creation & Review (Analog/Digital/Embedded)
We are looking for experienced Subject Matter Experts (SMEs) to support an ongoing Electrical Engineering project. The roles primarily involve content review an...
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