Circuit design jobs

...actively balance the cells and speak Mavlink over CAN so the flight controller sees accurate live data. Core functions • Real-time battery monitoring with voltage, current and temperature reporting for every cell and for the full pack • Automatic cell-to-cell balancing to maximise capacity and cycle life • Safety layer that disconnects or limits power on over-charge, over-discharge or short-circuit events • Mavlink-over-CAN telemetry, using the standard ArduCopter battery status messages so Mission Planner and QGroundControl display everything without custom plugins What I expect as deliverables 1. Schematic, PCB layout files (KiCad or Altium) and a BoM with readily sourced parts 2. Embedded code (C/C++ or STM32Cube / Arduino framework are fine) ...

...wall of my single-family home. The service line has enough slack, but I will need a properly sized exterior-rated panel, weatherproof fittings, and code-compliant grounding/bonding once the move is complete. While you are here, two more electrical updates are needed in the kitchen: • Install new code-compliant, dedicated receptacles for the refrigerator and electric stove (each on its own circuit, GFCI or AFCI as required by the latest NEC). • Replace a failed light switch that controls the main kitchen ceiling fixture. Please handle permitting, coordinate utility shut-off if required, and provide a clean inspection-ready finish (labelled circuits, tidy conduit runs, patching of the old panel cut-out inside). I am available this week to walk you through the desig...

Have a working circuit diagram for a device based on the ESP32-WROOM-32E module. The system is powered from an external supply (5V / 8V / 12V). The next step is to convert this schematic into a complete, production-ready, single-sided PCB design using Altium Designer. Scope of Work The objective is to develop a fully functional and manufacturable PCB design that meets the following requirements: Convert the provided circuit diagram into a clean, well-structured schematic in Altium Designer Design an optimised single-layer/double-layer PCB layout Ensure the PCB strictly follows the fixed board outline dimensions (to be provided) Implement clear silkscreen labelling for all components and connectors Optimise component placement and routing for reliabili...

OVERVIEW -------- I need a KiCad PCB designer to take a fully verified analogue circuit design and implement it correctly in KiCad, producing production-ready gerbers for JLCPCB. The circuit design is complete — this is a layout and EDA implementation job, not a design-from-scratch job. The board is a 6-cell LTO battery active balancer, 20A per channel, entirely analogue (no microcontroller). I need 4 identical boards to cover a 24S 15P Yinlong 66160 45Ah home battery pack. I plan to order 50 boards after a 5-board prototype run. BOARD SPECIFICATIONS -------------------- Board size: 250 x 120 mm Layers: 6 (JLCPCB stackup JLC06161H-3313) Outer copper: 2oz (L1 and L6 ) Inner copper: 0.5oz (L2 through L5) Surface fini...

I need a custom-shaped, single-layer printed circuit board produced quickly so I can test the mechanical fit and basic electrical routing for a new product I am developing. The overall board must stay as thin as practical; once we speak I will confirm exact thickness and any stack-up limits from my enclosure, but the goal is to minimise profile without sacrificing manufacturability. Here is what I will supply once we start: • A rough outline drawing and simple netlist showing the required connections • Components and preferred connector locations What I expect from you: • Review of my outline and placement to flag any manufacturability concerns • At least three fabricated prototypes shipped to me for bench testing Please use whichever professional tool...

I’m looking for a specialist who can take my concept for a blast-freezer cold room and turn it into a fully engineered design package. The project is strictly design-focused—no installation or maintenance at this stage—and I want every decision to be backed by precise cooling-load calculations so the system runs at peak efficiency from day one. You’ll be sizing and specifying the entire refrigeration circuit, including compressors, evaporators, piping, controls, insulation, and airflow management. I also need layout drawings that show equipment placement, service clearances, and door locations, along with any notes that will help an installer understand the design intent. Please ground the work in current industry standards and typi...

...first-person feature from an experienced flight instructor reflecting honestly on the most common errors students make in the circuit — and the specific teaching moments that actually fixed them. This is not a how-to manual and not a syllabus recap. It is a story, told by someone who has sat in the right seat long enough to have seen everything. Warm, direct, occasionally funny. The reader should finish it feeling like they just had coffee with someone worth listening to. **Word Count:** 800–1,000 words **Source:** This must be a commissioned piece from an active CFI or senior FI with verifiable hours. Writer draws from personal experience. Supplement references with DGCA CPL circuit standards from the training syllabus for any technical benchmarks cited. --...

...need a production-ready printed circuit board for a compact consumer-electronics tracker. The board has to combine Bluetooth connectivity for smartphone pairing, GNSS positioning for global location data, a LoRa module for long-range updates, and a 3-axis motion sensor to wake the unit only when it moves. Everything will run from a single rechargeable battery, so careful power budgeting and a low-power microcontroller are essential. Form-factor will be small enough to slip into a key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the d...

...courtside speaker. When the button is pressed, the system updates the score and announces it audibly. Current Stage: Prototype development. The goal is to design a functional, low-cost, and manufacturable electronic system that can later be scaled to production. System Components: 1. Wearable Button Unit * Small, lightweight device clipped to the player's shirt * Single push button input * Bluetooth Low Energy (BLE) communication * Rechargeable battery (Li-Po) * USB charging circuit * RGB LED status indicator: * Green: Device ON * Flashing Red: Charging * Green (steady): Fully charged * Low-cost design is important 2. Speaker Unit * Receives signals from the button via Bluetooth * Plays pre-recorded audio announc...

I’m refining a set of custom boards that combine an FPGA-based signal generator with several ESP32 modules. The immediate gap is in analog and digital circuit design: I need a fresh set of eyes to review, debug, and improve the front-end and conditioning stages so our multi-channel waveforms stay clean from kHz up into the low-MHz range. You will also find yourself touching the programmable logic; I use both VHDL and Verilog, so fluency in either (or ideally both) is welcome when tweaks to the signal-generation core are required. On the microcontroller side each ESP32 handles data processing, manages communication protocols, and drives attached peripherals, all written in C/C++. Expect to dive into that firmware whenever hardware changes ripple upward. Key objecti...

...ready-to-build circuit diagram that closes the voltage feedback loop on the DC bus of an off-grid inverter running in the 12 V – 24 V range. The diagram must show how a suitable voltage sensor feeds a microcontroller so the firmware can keep the bus voltage within safe limits and trigger protective actions when it strays. Please size all resistive dividers, isolation devices (if required), and any signal-conditioning stages so the microcontroller’s ADC receives a clean, scalable signal. What I expect from you • Complete schematic, preferably drawn in KiCad or Altium, showing the microcontroller, voltage sensor path, power supply rails, and any filtering or isolation you recommend. • Short bill of materials with part numbers that are actually availa...

I need a production-ready circuit and compact PCB built around the ESP32-C6 for an IoT device that must run efficiently on both a small solar panel and a rechargeable battery pack. Wi-Fi connectivity is mandatory, and every part of the design has to prioritise ultra-low power consumption so the unit can sit in deep-sleep most of the day yet still wake to trigger a miniature solenoid valve on command. Power architecture The board should accept solar input (≈5-6 V) and seamlessly switch to a lithium cell when sunlight is unavailable. Please integrate an MPPT-style charge controller, battery protection, and a low-loss power-path so the ESP32-C6 always sees a stable 3 V3 rail. Current draw during sleep should stay well under 30 µA. Control section • ESP32-C...

My Texas Instruments LM5170EVM-BIDIR board refuses to deliv...LED ON No output / incorrect output Bias supply confirmed (10V at J17) Fault pin behavior checked Suspected: Controller in shutdown / MOSFET issue Need: Hardware-level debugging support TI datasheet understanding Possibly schematic-level troubleshooting By the end of the engagement I expect: • A clear root-cause explanation for the “no output voltage” symptom in buck mode • A repeatable fix (circuit tweak, BOM change, or layout note) that I can implement and verify on my own bench • Confirmation through measured results that the buck rail is regulating correctly under load If you’ve debugged the LM5170—or similar multi-phase buck/boost controllers—your insight will save m...

...SolidWorks) – Freelance Work (India Preferred) --- We are hiring. We are OMM Enterprises, a machine manufacturing company working on paper plate machines, roti making machines, and automation equipment. We are looking for a freelancer who can help with simple pneumatic and machine design work. --- Work Details: - Basic pneumatic circuit design - Selection of cylinders, valves, and fittings - Simple AutoCAD or SolidWorks drawings - Support in improving existing machine designs This is practical work, not complex design work. --- Who Can Apply: - Mechanical engineers - Diploma or ITI candidates - AutoCAD or SolidWorks designers - Freshers with basic knowledge - Anyone with experience in machine-related projects If you have worked on any machin...

I already have a complete circuit schematic for an ESP32-based board and now need it translated into production-ready, two-layer Gerber files. Please work exclusively in KiCad so that I can review and maintain the project later. Follow standard IPC design rules throughout: clearances, trace widths, copper pours, silkscreen legibility, and all the usual checks that guarantee a smooth hand-off to any mainstream fab house. The board carries an ESP32 module, its accompanying power-management stage (regulators, protection, filtering), plus several sensors and small actuators. Placement should reflect good RF practice around the ESP32 antenna while keeping analog and noisy digital sections apart. I will supply: • the schematic (KiCad or PDF) • component datasheets ...

...monitor positions automatically. • AI layer – train and deploy a lightweight model that identifies micro-moves suited to scalping (seconds to a few minutes). Reinforcement learning or an LSTM-based approach is fine as long as it stays computationally efficient and can retrain on fresh data without downtime. • Risk management – dynamic position sizing, per-trade stop-loss, max daily drawdown, and circuit-breaker logic. • Back-testing & paper trading – one click to switch between historical simulation, paper mode, and live deployment. • Dashboard – concise web or desktop UI that shows P/L, open orders, latency stats, and model health in real time. • Documentation – setup guide, annotated source code, sample config...

I have a completed audiophile phono-preamp in ExpressPCB+ — schematic and two-layer board — that I now need recreated in Fusion 360 Electronics. The circuit holds 33 unique parts (about 120 total) and follows a simple structure: one power-supply section repeated six times and two identical audio channels. Because of this repetition, copy-and-paste inside Fusion should accelerate the job. All manufacturer part numbers are ready to drop straight into the new library, so you will not have to hunt for footprints or symbols. Trace widths and clearances can remain at Fusion’s defaults; no additional design-rule tuning is required. We will also keep the layer count exactly the same as in the ExpressPCB+ file. Mechanical constraints are critical: • Overall b...

...air and recognise simple OOK (On-Off Keying) pulses reliably. The intended application is “Radio Frequency RF”, so there is no higher-level protocol to worry about; raw, clean carrier switching will do the job. Everything will be mounted and operated outdoors, so the design must tolerate ambient temperature swings, sunlight and occasional moisture without detuning or loss of sensitivity. Both TX and Rx are separate not transceiver and battery powered with minimum 2 days running time. What I am looking for • Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB layouts and a concise Bill of Materials with part numbers that are actually in stock. ...

I am looking for a skilled electronics/PCB design freelancer for an industrial IoT device. This is not just a simple PCB layout job. The work includes schematic review, correction, engineering optimization, ESP32 module update, and complete PCB layout in EasyEDA for a compact and reliable product intended for long-term industrial use. Scope of Work: Review and correct the existing schematic Update the ESP32 model/module where needed and improve the design accordingly Optimize the circuit for power stability, EMI/noise immunity, grounding, filtering, and reliability Design a full 2-layer PCB layout from scratch in EasyEDA Use LCSC-preferred components where practical Improve the design for industrial stability and 3+ years reliable operation Key Technical ...

...engineer who knows ETAP inside-out to build and run a full fault-current model of my power system. The single-line diagram is ready; what’s missing is a cleanly-configured ETAP file that captures all protective devices, conductor data, and transformer parameters so I can see worst-case fault duties before equipment is ordered. The task centres on: • Setting up (or sanity-checking) the short-circuit module, clearing any data inconsistencies, and choosing the correct ANSI / IEC calculation options. • Delivering a concise PDF and the native .etap file that lets me trace each bus, breaker, and transformer contribution. I’ll provide the drawings, manufacturer sheets, and any utility data you need. Please highlight any data gaps early, walk me through the mo...

Routing of Printed Circuit Board Routing of Printed Circuit Board

I need a complete underground electrical service design for a new 25-lot residential subdivision. We already have a detailed civil layout, so you can work directly from that drawing set when positioning transformers, switchgear, street-lighting feeds and service laterals. The subdivision will use conduits with pulling cables throughout. I want the plan to cover conductor sizing, conduit schedules, trench depth and separation requirements, load calculations for each home, grounding and bonding, and the main service entrance equipment all the way to the individual meter bases. Please apply all applicable NEC articles as well as the local ESA utility’s service-installation standards( Table 8 ) ; . Short-circuit and voltage-drop checks must be shown in the calculations. ...

I have a newly b...installer (.exe or .msi) for Windows, then places each build behind the private portal. • Simple web dashboard or file share where only authenticated admins can grab the latest version, see release notes, and (optionally) roll back. • Deployment documentation that lets me repeat the process or hand it to another engineer without guesswork. If you have hands-on experience setting up similar closed-circuit distributions, especially with CI/CD tools like GitHub Actions, GitLab CI, Jenkins, or Azure DevOps, briefly outline that work when you reply. Security credentials—code signing, server hardening, penetration testing—are a big plus. That’s it: a secure, admin-only delivery system for our cross-platform desktop software, fully docum...

...engineer who knows ETAP inside-out to build and run a full fault-current model of my power system. The single-line diagram is ready; what’s missing is a cleanly-configured ETAP file that captures all protective devices, conductor data, and transformer parameters so I can see worst-case fault duties before equipment is ordered. The task centres on: • Setting up (or sanity-checking) the short-circuit module, clearing any data inconsistencies, and choosing the correct ANSI / IEC calculation options. • Delivering a concise PDF and the native .etap file that lets me trace each bus, breaker, and transformer contribution. I’ll provide the drawings, manufacturer sheets, and any utility data you need. Please highlight any data gaps early, walk me through the mo...

...engineer who knows ETAP inside-out to build and run a full fault-current model of my power system. The single-line diagram is ready; what’s missing is a cleanly-configured ETAP file that captures all protective devices, conductor data, and transformer parameters so I can see worst-case fault duties before equipment is ordered. The task centres on: • Setting up (or sanity-checking) the short-circuit module, clearing any data inconsistencies, and choosing the correct ANSI / IEC calculation options. • Delivering a concise PDF and the native .etap file that lets me trace each bus, breaker, and transformer contribution. I’ll provide the drawings, manufacturer sheets, and any utility data you need. Please highlight any data gaps early, walk me through the mo...

I need a compact circuit board designed to function like a pond ionizer, primarily to control algae growth. Requirements: - Input: 24V AC or DC - Output: 12V DC at approximately 0.1A to copper probes - Indicator: Green LED to light up when probes are submerged, completing the circuit Ideal Skills and Experience: - Experience in circuit design and PCB layout - Familiarity with low voltage power supplies - Knowledge of water submersion and environmental resilience (high humidity, etc.) - Proficiency in soldering and working with electronic components

...the IEEE 13-bus feeder with a PV source and completed a full protection-coordination study, yet the short-circuit module is returning unrealistic fault current values. Because those values feed directly into my relay settings, the time-current curves no longer prove CTI compliance, and the entire coordination becomes suspect. What I need urgently is a focused review of the fault-current simulation results themselves. Please examine the ETAP file and trace all assumptions affecting short-circuit levels, including source impedance, transformer impedance, line data, grounding, PV inverter contribution, breaker ratings, and any relevant study or calculation options. Then rerun the short-circuit study and identify the reason for the unrealistic values. If any parameters...

I'm looking for an experienced Arduino programmer to create a microcontroller-based shooting target system. The system will feature 20 targets spread over a wall, with individual LEDs that randomly light up and a sound effect when a target is hit. Key Requirements: - 20 targets with individual LEDs - LEDs randomly lit - Arduino-bas...individual LEDs that randomly light up and a sound effect when a target is hit. Key Requirements: - 20 targets with individual LEDs - LEDs randomly lit - Arduino-based microcontroller - Sound effect on hit Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with individual LED control - Knowledge of sound integration with microcontrollers - Background in electronics and circuit design Please provide relevant ex...

I need a mechanical design engineer who can turn my concept for an industrial hydraulic tilting table into a complete, fabrication-ready package. The table must safely handle heavy loads over 2 000 kg while tilting through 0–45 °, and its movement has to be managed by a fully automatic hydraulic control system with position feedback, safety interlocks, and a clean operator interface. The schedule is tight: I’d like to kick off immediately, see a first concept layout within a few days, and iterate rapidly to final approval. Throughout, I expect solid adherence to ISO/ASME standards, careful attention to weldment rigidity, and documented strength calculations that demonstrate an adequate factor of safety at every tilt angle. Deliverables • 3D CAD model (SolidWor...

This college assignment calls for a compact yet polished circuit-style racing game built entirely in Roblox Studio. The track should accommodate car-only racing and include a reliable lap-based time-trial system so I can demonstrate leaderboard logic and basic analytics during my presentation. Key notes: • Cars are the sole vehicle type; no bikes or karts are necessary. • A clean, looping circuit with start/finish detection, checkpoint scripting, and lap counting must be in place. • Time-trial functionality is essential—automatic timer start, per-lap splits, and a simple top-five leaderboard stored with DataStore. If you already have frameworks for multiplayer or cosmetic customization, feel free to structure the code so those could be added l...

I need a electrical designer who can prepare an approval-ready electrical plan for my 160 sqm restaurant in the Philippines. I already have an architectural layout drafted, so you can work directly from that file. The goal is to produce a complete electrical design package that satisfies local permitting requirements and aligns with the Philippine Electrical Code. I will submit these documents to the city engineer, so accuracy and compliance are critical. Key tasks • Review my existing layout and identify optimal circuit routes, panel locations, and load calculations. • Produce a stamped electrical plan (PDF + DWG) showing branch circuits, breaker schedules, lighting and receptacle layouts, grounding, and single-line diagrams. • Include any notes or legen...

I need a electrical designer who can prepare an approval-ready electrical plan for my 160 sqm restaurant in the Philippines. I already have an architectural layout drafted, so you can work directly from that file. The goal is to produce a complete electrical design package that satisfies local permitting requirements and aligns with the Philippine Electrical Code. I will submit these documents to the city engineer, so accuracy and compliance are critical. Key tasks • Review my existing layout and identify optimal circuit routes, panel locations, and load calculations. • Produce a stamped electrical plan (PDF + DWG) showing branch circuits, breaker schedules, lighting and receptacle layouts, grounding, and single-line diagrams. • Include any notes or legen...

I have an ...accurately in CAD and delivered as a clean, fully editable DWG file. There are no mandatory IEC or client templates to follow, so you’re free to set up the drawing using your usual layer and title-block conventions as long as everything is tidy and logically organised. Please transfer all circuits, fittings, cable runs and board schedules exactly as shown, then add the annotations I will provide (circuit IDs, breaker ratings, fixture tags and a brief legend). Keep text heights readable at A3 print scale and ensure dimensions and symbols remain to scale. Deliverable: • One DWG file that opens error-free in AutoCAD 2018 or later, with all requested labels in place. Once I receive the file and confirm that every element matches the sketch and annotation list,...

...capability of each rail, and how the various power sources are integrated—and then scrutinise every ceramic capacitor on the board for correct capacitance values and voltage ratings. You’ll receive the full PDF and the original design files (KiCad). I expect clear, pin-referenced comments on the schematic plus a concise report outlining: • any mismatched voltage rails or trace width issues that could limit current • potential inrush or stability concerns tied to the chosen power sources • capacitors whose stated capacitance or voltage rating doesn’t align with the circuit requirements, or whose placement may compromise performance - battery is CR2032 If something looks off, suggest concrete fixes—part number changes, footprint...

I need a clean, well-commented ladder program built in Connected Components Workbench for an Allen-Bradley Micro 850. The code will control a short conveyor section that feeds a product flipper and then sends the item out the opposite end. The hardware is alrea...tag names set to match I/O list • No HMI required • Remote commissioning support via Messenger or a quick call when we power up the line, to walk through any live tweaks or fault diagnostics Acceptance The program will be considered complete once the conveyor starts, flips, and exits product consistently in auto mode, stops instantly on Emergency Stop, and resets cleanly when the safety circuit is restored. If this matches your skill set and schedule, let’s get started— we are looking at start...

Seeking an electrical engineer or controls engineer to design a residential prototype system for monitoring energy use on selected branch circuits and disconnecting a circuit when its daily energy consumption exceeds a configurable limit. Project overview The system is intended for a 120/240 V residential service with a 200 A main panel. The goal is to monitor approximately 8 to 10 selected branch circuits, measure kWh consumption on each circuit, and automatically turn off an individual circuit when its daily kWh use exceeds an adjustable per-day setpoint. The intended architecture uses DIN-rail Modbus energy meters, RS-485 communications, and contactors or other suitable circuit-interrupting devices controlled by a central controller. functional Require...

...store it in a shared data structure (e.g., a dictionary or in-memory DB). ​Frequency: Data must refresh every 5 seconds. ​2. Logic & UI Integration ​Category Filters: GUI checkboxes for "", "", and "". The bot should only scan active/checked categories. ​Priority Calculation: Compare time_remaining across all monitored rooms. The "Target Room" is the one with the lowest value closest to 0. ​Short-Circuit Logic (Immediate Jump): If the scout detects any room with le 6 seconds remaining, it must trigger an immediate jump signal without finishing the scan of other rooms or categories. ​3. Execution & Hotkeys ​Manual Trigger: Upon pressing the Shift key (configurable), the main bot must execute the /sala [room_name] command for the cur...

...Heat-Affected Zone, estimate weld penetration depth and compute residual stresses. The goal is to correlate the simulated HAZ with micro-section images I will supply, and flag any stress concentrations that could compromise weld quality. Thermal runaway / fault scenario Finally, drive the model into an over-current short-circuit event. Report peak temperature, time-to-failure, runaway propagation path and predicted busbar melting/fuse behaviour. Include the short-circuit current waveform used as load input. Deliverables • ANSYS project files for each physics setup, fully solved • High-resolution plots (PNG + native ANSYS reports) for every metric listed above • A concise memo summarising methodology, key assumptions, mesh independence check and res...

I’m preparing an electrical simulation in XSim and could use an experienced hand to get everything running smoothly. The immediate goal is to build and validate an audio-amplifier circuit, but I’m hitting a few snags while configuring the project and debugging unexpected behaviour in the tool. Here’s what I need from you: • Walk me through the full simulation setup in XSim—component selection, net-list creation, stimulus definition and any must-have parameter tweaks for audio work. • Identify and resolve the software glitches or warning messages that keep interrupting my runs. • Share practical tips on result interpretation so I can quickly spot distortion, gain issues or stability problems in the amplifier stage. We’ll collaborate...

I’m putting together a compact main panel for a small residential building that will host three fully-independent single-phase meters, each sitting behind its own ELCB and voltmeter. The panel also needs a shared Type 2 surge protection device to deal with switching surges on the incoming line, plus an automatic over-voltage control circuit that can disconnect power the moment the line rises above the set threshold and reconnect when it returns to normal. I’d like everything built around Schneider Electric gear where practical—meters, ELCBs, the SPD and the over-voltage relay—so please base your selections on their current catalogue (or clearly flag any unavoidable substitutions). Deliverables I need from you: • Single-line and detailed wiring diagrams...

...California and plan to add a traditional-style room extension that will stay under 500 sq ft. To secure building approval, the city needs a full permit set prepared to current CRC, CBC, and Title 24 standards. Scope of work The package must cover Architectural, Mechanical, Electrical, Plumbing, and Structural disciplines, integrated so the plans examiner can trace every load path, duct run, and circuit without cross-referencing separate sheets. All drawings must be coordinated for consistency in elevations, schedules, and notes. Deliverables • Architectural sheets: site plan, floor plan, roof plan, exterior elevations matching the existing traditional façade, door/window schedules, and applicable energy-code forms. • MEP sheets: single-line and layout drawing...

...• Mechanical and electrical drawings (2D or simple 3D CAD) showing frame layout, battery placement, drivetrain, steering, brakes, and wiring • Step-by-step assembly guide, including any jigs or fixtures I’ll have to make • Charging circuit design suited to household power (110/220 V) • Performance estimates—range, top speed, and recharge time—based on the chosen components • Email or chat support to clarify questions while I gather parts and start assembly Acceptance criteria: the documented bill of materials must total approximately $600, the design must be road-safe at neighborhood speeds (around 25–30 mph), and the calculated range should land within 50–100 miles per charge. If you have built DIY EV...

I want to create a video of bikes and cars tearing around a circuit. I want it to be fast-paced piece that radiates power and speed. The entire film needs a subtle black tint for a moody, cinematic look while still letting the highlights pop. Please lean heavily on close-up detail of the machines and intercut that with sweeping aerial drone passes. I also want some helmet-mounted first-person POV included that I’d like woven in for extra intensity. Logos, numbers, decals—every visible brand mark—must be removed or masked cleanly so the audience stays focused on motion, not sponsorship. For audio I imagine a bed of dramatic, intense music that punches through, layered carefully with authentic track ambience: engines roaring, tyres screeching, wind rush. No generic...

...is also suitable for publication in a reputed conference. Scope of Work: The selected freelancer will be responsible for the following: 1. Project Development Propose a novel or improved project idea in the Embedded Systems domain (e.g., IoT-based systems, RTOS applications, FPGA-based design, sensor networks, edge AI on microcontrollers, wearable health monitoring, smart agriculture, or similar). Complete hardware design/simulation and software/firmware development. Deliver fully working source code, circuit schematics, and a prototype demonstration (physical or simulation-based). Provide a detailed project report following standard academic format (abstract, literature survey, methodology, results, conclusion, references). 2. Conference Paper Writing & Subm...

Title: Home Automation & Electrical Wiring Design (Shelly) – Full Plan incl. Distribution Boards, Ethernet & Fiber ⸻ Description: I am looking for an experienced home automation / domotique designer to create a complete electrical and low-voltage wiring plan for a residential renovation project in Switzerland. The system will be based primarily on Shelly modules, with control via a mobile app (Shelly Cloud or Home Assistant). This is a design-only role. Installation will be carried out by a separate contractor, so clarity and precision in the plans are critical. ⸻ Project Overview: • Apartment split across two levels: • Main floor (living areas) • Basement (office + game room) • Full renovation with new electrical installation ⸻ E...

...looking for an experienced electronics engineer to review, validate, and improve a Driven Right Leg (DRL) circuit designed in KiCad. The circuit is part of an Arduino-based EEG front-end, where the DRL is used to reduce common-mode noise (mainly 50 Hz mains interference in Europe) and improve signal quality. The freelancer must analyze the existing schematic, evaluate the DRL loop stability, feedback design, and overall effectiveness in common-mode noise rejection. If needed, the circuit should be corrected and optimized by adjusting component values or modifying the topology. A key requirement is both mathematical analysis and simulation-based validation. The freelancer must explain the circuit operation using equations and demonstrate its performance...

This project focuses on the design and implementation of a low-power, high-speed, and area-efficient 8-bit signed multiplier using Pass Transistor Logic (PTL) for improved VLSI performance. The goal is to develop an optimized multiplier architecture by integrating PTL-based components such as XOR gates, Half Adders (HA), Full Adders (FA), and a modified Full Adder (FAINV), along with key building blocks like Modified Booth Encoding (MBE), an adder tree, and a Ripple Carry Adder (RCA). The freelancer will be responsible for designing the complete circuit, performing simulations, and validating the design using a 28nm technology node under varying voltage and frequency conditions. The project also involves layout design, performance analysis, and comparison with c...

...instantly Remaining faces should update automatically based on mapping logic Support multiple mapping profiles (minimum 3 layouts) Ability to switch mapping patterns using remote Random mode symbol generation Memory to store last selected layout Fast response display update Symbols to display: Crown Heart Diamond Club Flag Spade Deliverables required: Circuit diagram Source code Component list Assembly guidance Working prototype design support Future upgrades may be required after prototype completion....

...running into roadblocks whenever my projects demand clean, reusable wiring diagrams or well-organised panel layouts. To move past these hurdles I’d like one-on-one guidance from someone who truly lives and breathes the software. The focus areas are clear: • Creating and modifying electrical schematics, especially the wiring and circuit design workflow. • Laying out panels so that every component, terminal strip and wire number stays consistent when the design changes. We can meet online through any reliable screen-sharing platform, and I’m hoping for a mix of live demonstration plus hands-on exercises that you review with me. If you already have sample projects, custom symbol libraries or proven tips on project setup, even better—sh...

I need an electronics engineer to design a complete circuit schematic and PCB layout within a 95 mm × 95 mm board size. The PCB will integrate an ESP development board, a 12V relay, a GSM module, and a common power supply for all components. Detailed Requirements: 1. Microcontroller Section ESP32 development board All required pins must be brought out / interfaced clearly Antenna keep-out area should be considered for WiFi 2. Relay Section 12V relay (30A) Optocoupler-based isolation preferred Transistor + flyback diode must be included Screw terminal for load output 3. GSM Module Section SIM800 Proper SIM slot footprint Audio pins not required 4. Power Supply Section Input: 12V DC Regulated outputs: 12V for relay 5V for GSM module 3.3V for ESP Buck converter preferr...