Sisteme încorporate Jobs

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.

I am looking for an experienced Embedded Hardware Design Engineer to develop a custom production-ready WIFI Board for a proprietary embedded electronic product. The selected engineer will be responsible for reviewing the project requirements, designing the complete schematic, selecting suitable components, creating the WIFI Board layout, and preparing the design for manufacturing. Required Expertise - Embedded hardware design - Mixed-signal WIFI Board design - RF WIFI Board layout - Power supply design - Battery-powered embedded systems - Design for Manufacturing (DFM) - Design for Assembly (DFA) - Schematic capture and WIFI Board layout (KiCad or Altium preferred) Deliverables - Complete schematic - WIFI Board layout - Bill of Materials (BOM) - Gerber files - Manufacturing files - A...

I am looking for an experienced Embedded Hardware Design Engineer to develop a custom production-ready PCB for a proprietary embedded electronic product. The selected engineer will be responsible for reviewing the project requirements, designing the complete schematic, selecting suitable components, creating the PCB layout, and preparing the design for manufacturing. Required Expertise - Embedded hardware design - Mixed-signal PCB design - RF PCB layout - Power supply design - Battery-powered embedded systems - Design for Manufacturing (DFM) - Design for Assembly (DFA) - Schematic capture and PCB layout (KiCad or Altium preferred) Deliverables - Complete schematic - PCB layout - Bill of Materials (BOM) - Gerber files - Manufacturing files - Assembly documentation - Native CAD source f...

Hi there! Hope you're doing well. I have a hobby-grade RC truck (thinking Traxxas Stampede or a similar 4WD model) and I'd love to turn it into something I can drive remotely over the internet — not just the usual short-range radio control, but actually control it from another country, with minimal delay. The basic idea is to swap out the stock RC receiver for a Raspberry Pi (or something similar), so instead of a normal remote, I could control it through a simple web page or app from anywhere with an internet connection. A few things I'm hoping you can help with: Getting the Pi talking to the truck's existing motor controller and steering servo Setting up a low-latency connection (something like WebRTC) so the controls feel responsive even over long distances A s...

I need our existing laser-maze exhibit adapted before we use it so children can explore it safely It comes with class 3 lasers but we need to change these to class 2 and introduce a system that shuts the lasers down as soon as the beam is broken and then comes back on after five seconds providing the beam Is clear The system is already installed and has seven lasers on one wall and small mirrors to reflect to each beam. The maze is around 3 x 2 m

I need a working human-computer interface that can both pick up and broadcast data over Bluetooth at the highest speed the protocol allows. The data flowing through it will be full-rate cellular communications data rather than simple audio or text, so throughput and low latency are critical. On the input side the unit will read Qi energy and Acu-meridian energy via harness-style skin contacts. Those raw sensor signals have to be conditioned, digitised and pushed straight to a tablet over Bluetooth without noticeable lag. In the opposite direction the tablet will be able to transmit control or stimulation patterns back to the interface just as quickly. The job covers hardware design, embedded firmware and a basic demo app for a tablet or computer: • Hardware: schematic, PCB layout an...

Please Note: total amount is $80. Please do not bid if this is not acceptable. I’m putting together a single-rail power supply for sensitive audio gear and need a clean, hum-free output. The brief is straightforward: • Topology: prefer an LDO-based regulator front-ended by a capacitance-multiplier stage (or an equally quiet alternative you can justify). • Input: board-mounted, fully encapsulated transformer—no off-board or open-frame types. • Output: 9 V to 24 V DC, up to 1.5 A continuous. Low ripple and broadband noise filtering are far more important than absolute efficiency. Include transformer snubbers. • Target use: high-end audio equipment, so 50/60 Hz mains-borne noise, switch-spikes and thermal drift must all be kept to a minimum. Deliverable...

We are looking for an experienced Power Electronics Engineer / PCB Design Engineer to design three high-power solar inverter systems from scratch: On-Grid (Grid-Tie) Inverter Off-Grid Inverter Hybrid Inverter Power rating: 30kW to 50kW — this is industrial-scale, three-phase equipment, not a residential 1-5kW unit. We need engineers who have specifically worked at this power level before. We will start with one inverter type first (to be confirmed after proposals), then move to the others upon successful completion. We have reference datasheets/manuals from existing market products (ASHAPOWER, TruePower, UTL, Waaree, etc.) that will be shared as benchmarks for specs and features. The design itself must be original/from scratch — not a copy of any existing product. Delive...

Title: Full-Stack Embedded Engineer: KiCad Flex-PCB Design & STM32 Firmware for Capacitive Sensing Array Project Objective: We are prototyping a wearable biomechanics system for a para-athlete runner 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 ...

Project Title Electronic Speed Controller (ESC) & Flight Controller Hardware Design Engineer for Defence UAV Project Description We are looking for an experienced **Electronics/Embedded Systems Engineer** to design and develop an indigenous **Electronic Speed Controller (ESC)** and **Flight Controller** for our defence UAV platform. This is a long-term project with the possibility of continued collaboration on future UAV systems. # Scope of Work # Electronic Speed Controller (ESC) * Design BLDC ESC (60A–120A, scalable up to 200A) * Schematic design * PCB Layout (KiCad or Altium) * Component selection (MOSFETs, Gate Drivers, Current Sensors, Regulators) * Thermal management * EMI/EMC considerations * Gerber Files * Bill of Materials (BOM) * Manufacturing files * Prototype ...

Embedded Linux with yocto,I want to learn embedded linux with yocto

Wireless Load Cell Monitoring Systems About the Role We're building out a wireless weighing and monitoring solution from the ground up, and we need a seasoned embedded engineer who can own the technical journey — from early prototype to a validated, field-ready product. This role sits at the intersection of hardware and software. You won't just be writing firmware in isolation; you'll be shaping system architecture, wiring up hardware, writing and debugging embedded code, and pushing performance across the board. At a high level, the system pulls weight data from a network of load-cell-equipped sensor nodes spread across multiple locations, processes that data on-device, pushes it over a wireless link, and surfaces it through a cloud-connected platform for remote acce...

I’m setting up a new mobile-phone venture and I want a seasoned PCB designer to join me at the ground floor. I will fund the hardware development; what I need from you is the end-to-end PCB engineering that turns our handset concept into a manufacturable reality. Scope of work • Architect and lay out a multilayer board that fits a slim smartphone form factor. • Integrate the core silicon (application processor, memory, RF front-end), battery interface and power-management circuitry, plus all critical sensor breakouts. • Optimise signal integrity, thermal behaviour and EMI/EMC so the design can clear FCC/CE without major rework. • Produce complete deliverables—schematics, layered Gerber/ODB++ files, annotated BOM, pick-and-place data and a brief DFM ...

I'm seeking an expert in firmware and hardware integration, specifically for radio communication. This project involves developing both firmware and the necessary hardware components. Key Requirement: - Custom Protocol: The firmware must support a custom communication protocol tailored to our specific needs. Ideal Skills and Experience: - Proficiency in radio communication systems - Experience with custom protocol development - Strong background in microcontrollers and circuit design - Knowledge of data acquisition and control systems is a plus Please share your relevant experience and approach to this project.

I need a clear, component-level wiring diagram that shows exactly how to build a compact rechargeable lamp. The diagram must be laid out as a classic wiring diagram (not a high-level schematic) so wire colours, connection points and conductor paths are unambiguous for a technician to follow. Components used to fit in a 100*100*20mm compartment Project context The lamp will run from an internal battery pack, drive a small cluster of LED lights, and recharge via a dedicated charging circuit. A capacitive touch sensor will act as the on/off. Everything should fit on a single board with any external leads clearly marked. Essential inclusions • Battery pack : to have 7-8hrs backup for the LED mentioned below • LED : 3 V, 33 mA LED filaments • Charging circuit (USB-C prefe...

I need help configuring a Hikrobot camera using python whenever it flags a vehicle incorrectly, drives an external alarm output. In practice that means: • Monitoring the confidence/result coming from the camera (SDK, ONVIF events or RTSP overlay—whatever is most reliable) and deciding when a detection should be considered “wrong”. • As soon as a wrong detection is confirmed, toggling the camera’s I/O port (or a small companion relay module if the onboard I/O proves too limited) to fire the alarm signal. A concise set-up guide and any scripts, firmware tweaks or parameter files you create must be supplied so I can replicate the installation on additional units. Please include short test footage or logs proving that the alarm is triggered only on false...

I need a compact Bluetooth mouse engineered from the ground up with four physical buttons, a smooth scroll wheel, and a USB-C port for both charging and optional wired use. Beyond the standard right- and left-click, the two extra buttons have to ship pre-mapped to volume control (up / down or mute / un-mute) yet remain fully re-programmable through companion software or firmware so users can assign any shortcut they like later on. The build should feel as solid as today’s premium portable mice, keep latency low, and work cross-platform without separate drivers. I’m open to Nordic, Cypress, or similar Bluetooth LE chipsets as long as you hit excellent battery life and achieve seamless reconnection after wake-up. USB-C power management and over-the-air firmware update capability...

I need an engineer who can take me from concept to working prototype on a precision electromagnetic sensing instrument aimed squarely at industrial non-destructive testing and material verification. The core job is to design a sensor that reads electrical conductivity with high accuracy on metallic parts, while also giving me phase-shift and signal-amplitude data that I can use for deeper analysis. My ideal workflow looks like this: we agree on the excitation frequency range, coil geometry, and signal-conditioning chain; you model and build the probe; you develop the embedded firmware and a simple desktop interface so I can visualise raw and processed readings in real time. Throughout, please keep calibration and repeatability in mind—stable baselines and traceable test procedures a...

I need a complete PCB design built around the ESP32-C3 and five onboard power MOSFETs. The board will sit inside a medium-sized, handheld consumer-electronics enclosure and run from a regulated mains-derived supply, so careful attention to isolation, creepage, and thermal paths is essential. The circuit will drive five independent high-side or low-side loads (I can adapt to whichever topology is simpler on your end) while giving the ESP32-C3 solid Wi-Fi/BLE antenna performance. GPIO pin mapping, level-shifting, protection, and a clean 3 V3 rail must all be worked into the schematic. Please route with sensible trace widths, keep EMI in check, and leave me a little proto area for future tweaks if space permits. Deliverables • Schematic and well-annotated PCB layout • Gerber, ...

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 optimizat...

Our ESP32-based prototype uses the MSME INNP441 digital mic, and during live audio streaming it introduces jitter and a screeching interference noise—even though the board sits in a quiet lab. I have already updated the firmware, swapped in fresh hardware, and tweaked every software register I could reach, yet the distortion persists. I’m looking for someone who can dive into the existing C/C++ (Arduino-style) code, analyse the I²S configuration and clocking, and track down whatever is corrupting the audio path. If a schematic or logic-analyser trace is helpful, I can supply both. Any fix should leave us with clean, stable voice capture that we can push straight to our streaming stack. Because this is part of our in-house tech, I will provide the full repository only a...

Project Title : Custom 4G/5G & Ethernet WAN Router with Physical Internet Pause Switch Project Overview I am looking for an experienced embedded hardware engineer (or team) to design and build a custom networking device. The device should be capable of receiving internet from either a physical 4G/5G SIM card or an Ethernet WAN input and provide internet through a dedicated Ethernet LAN output. The primary feature is a physical hardware switch that instantly pauses and resumes internet connectivity to the connected LAN device while keeping the Ethernet link active. Functional Requirements 1. Internet Sources The device must support two independent internet sources: A. Cellular Physical Nano SIM card slot. Support 4G LTE and 5G NR. Compatible with as many global 4G and 5G frequency ba...

Hardware Engineer Wanted: Compact Biometric Wearable Prototype We are seeking a hardware engineer to design the electronics for a lightweight, clip-on attachment that tracks head posture, motion, and heart rate metrics. Project Overview You will design the complete electronic architecture and schematics for a compact, battery-powered wearable prototype. Key Features: Sensors: Integration of an EOG and IOG Connectivity: Bluetooth Low Energy (BLE) for data transmission. Power: Low-power optimization with a small LiPo battery and a magnetic charging setup. Form Factor: High-density, tight-space layout (experience with small or rigid-flex PCBs is a major plus). What You’ll Do Select optimal components based on power and size constraints. Design the analog front-end for clean sens...

I am building a hands-on trainer kit series and the first board in the lineup is an ESP8266-based IoT controller. I already know the core feature set I need—reliable sensor integration, solid wireless communication and on-board data logging—so your task is to translate those requirements into a clean, production-ready PCB. Scope of work • Schematic capture and PCB layout for the ESP8266 module (ESP-12 or similar) with break-outs for common digital/analog sensors, UART/SPI/I²C headers and a micro-SD slot for logging. • Keep-alive circuitry, 3 V / 5 V level shifting where needed, and a regulated power stage that accepts both USB-C and external DC input. • Generation of manufacturing outputs: Gerber, drill files, pick-and-place, and full BOM with part nu...

My schematic for an ESP32-based drone flight controller is complete; what I need now is a skilled PCB designer who can turn that schematic into a reliable, production-ready board. You’ll take the finished circuit and: • Develop the full board layout, choosing an efficient layer stack that keeps weight and interference low while remaining manufacturable. • Generate all fabrication data—Gerbers, drill files, pick-and-place, STEP/3D, and a clean, component-matched BOM. • Run thorough DRC/DFM checks so the design sails through board house review on the first pass. • Document any design decisions or trade-offs so I can iterate or scale later without guesswork. I’m supplying the original schematic, netlist, footprints, and datasheets. Tool choice is ...

I need a Raspberry Pi programmed as a vending machine controller using Python. The machine will interface with a coin acceptor, card reader, and product dispenser, and will dispense non-food items. Key Requirements: - Integration with coin acceptor and card reader (nayax) - Control of product dispenser - Python programming Ideal Skills and Experience: - Experience with Raspberry Pi - Proficiency in Python - Familiarity with vending machine components and integration -Will use a MDB Pi Hat from qibixx

Je souhaite concevoir puis réaliser un système d’irrigation intelligent, connecté en IoT, dédié aux cultures de céréales. L’objectif est de réguler l’apport en eau par irrigation de surface en fonction de données temps-réel recueillies par des capteurs d’humidité du sol et de température. Concrètement, il me faut : • l’architecture complète (choix du microcontrôleur – Arduino, ESP32 ou équivalent –, réseau LoRa/Wi-Fi, passerelle, cloud ou serveur local), • le schéma de câblage incluant électrovannes ou pompes pour l’irrigation de surface, • le code embarqué qui lit les capteur...

Hi I will share the details with the shortlisted candidates. Thanks

Hi I will share the details with the shortlisted candidates. Thanks

Ho 6 Raspberry CM4 che non si accendono e, dopo vari tentativi, sospetto un guasto hardware localizzato sulla scheda madre. Non vedo bruciature, crepe o altri segni evidenti, ma il dispositivo rimane completamente morto anche con alimentatore sicuramente funzionante. Cerco chi possa: eseguire la sostituzione dei componenti difettosi • verificare a banco che il Raspberry torni ad avviarsi e a collegarsi correttamente a rete e periferiche USB Preferisco una soluzione chiavi in mano: mi va bene spedire il dispositivo al laboratorio, purché sia testato prima della restituzione. Accetto anche una consulenza dettagliata se riesci a guidarmi passo-passo con gli strumenti giusti. Forniscimi tempi stimati, metodo di test finale e garanzia sul lavoro svolto.

Briefing do Projeto Estamos procurando um profissional para desenvolver um projeto de um Sistema Ecológico de Reaproveitamento de Água para Hortas Domésticas. O projeto é um protótipo simples, desenvolvido para uma pequena horta doméstica, sem necessidade de atender grandes áreas ou implementar funcionalidades complexas. Objetivo Desenvolver um sistema automatizado utilizando ESP32 que monitore a umidade do solo e realize a irrigação utilizando água da chuva armazenada em um reservatório, promovendo economia de água e praticidade para o usuário. Funcionalidades esperadas - Programação completa do ESP32; - Leitura do sensor de umidade do solo; - Leitura do sensor de nível de...

Necesito un editor protegido que me permita conectar por OBD a camiones Volvo y realizar programación remota completa de cualquier módulo. El objetivo es poder actualizar software y personalizar configuraciones sin importar la ciudad donde se encuentre el vehículo, abarcando los sistemas de motor, transmisión y frenos. El flujo ideal es sencillo: yo me conecto al camión mediante una interfaz OBD-II, abro tu herramienta, selecciono el módulo y cargo o modifico el firmware/ parámetros; todo lo demás (validaciones, seguridad, checksum, desbloqueo, etc.) debe quedar cubierto internamente por la aplicación para que el proceso sea fiable y a prueba de errores. Entrego acceso remoto a un vehículo de prueba para ver in-situ c...

I'm seeking an experienced developer to integrate a robot bartender, Makr Shkr, with the Toast POS system. The robot mixes custom drinks and mocktails based on what's set up on its system. Key Requirements: - Seamless integration with Toast POS - Robot bartender functionality to mix drinks Detailed Workflow: 1. Provision Toast API Access: - Access the Toast Developer Platform, requiring the Restaurant Management Suite (RMS) enabled on your Toast account. - Generate a Client ID, API Secret, and retrieve your 32-character Location GUID. - Enable the Orders Read and Kitchen Read API scopes. 2. Set Up Webhooks or Long Polling: - Use an intermediary server (e.g., AWS Lambda function or local integration gateway server) to listen for actions on Toast. - Configure a To...

I own a black-and-red Wii Mini and want it professionally upgraded. The job is to open the console, fit a discreet internal hard drive—something under 500 GB is plenty—and preload a complete Wii game library so every title launches directly from that drive. No SD card, no dangling USB, and no visible traces once the shell is closed; the modification must look and feel factory-standard. Here’s what I need from you: • Source and install the smallest, reliable internal HDD that fits the Wii Mini’s tight space. • Soft- or hard-mod the system so it boots straight from the new storage. • Transfer and organise the full Wii catalogue (if you can add Nintendo 64 or GameCube sets too, feel free to mention that as an optional extra). I’ll ship the ...

We are looking for an experienced developer or small team to build a proof-of-concept 1-DOF haptic syringe simulator for anaesthesia training. The goal is to allow a user to push a physical syringe and feel changing resistance as the virtual needle passes through skin, fat, muscle, and finally bone. A simple 3D visualization should display the needle moving through these tissue layers with realistic PBR textures. Scope of Work Hardware Design and build a custom 1-DOF haptic syringe device Select and integrate suitable motor, driver, controller, and sensors Develop firmware for real-time force feedback Ensure smooth, responsive haptic performance Software Develop in Unity (preferred), Unreal Engine, or native C++ Real-time communication between hardware and software Map insertion depth to...

I need a small but robust utility that runs on Nintendo Switch 2 and helps players squeeze the best possible performance out of their games. The core focus is performance optimisation: analysing in-game behaviour, identifying bottlenecks on the fly and applying smart tweaks so titles load faster, maintain steadier frame rates and feel more responsive. What I picture is a lightweight overlay or background service written in C/C++ (or another language supported by the official Switch 2 SDK) that: • profiles CPU, GPU and memory usage in real time, • applies dynamic setting adjustments or recommends the ideal presets, and • logs before/after metrics so users can clearly see the gains. SDK-compliant code, clean architecture, and clear developer documentation are es...

I want to create a branded control board that keeps the familiar Arduino UNO R3 footprint yet swaps the ATmega328P for an ESP32. The finished board must: • expose the usual analog inputs, PWM outputs, serial ports and full digital I/O • break-out every pin through sturdy screw terminals instead of header pins • carry an on-board battery cradle for two 18650 cells (3.7 V each) and an integrated 2-cell BMS • arrive pre-flashed so it shows up in the Arduino IDE exactly like a normal UNO-style target Because the unit will be wall-mounted, an ABS enclosure that matches the board outline, standoffs and connector layout is part of the job. I need mechanical files (STEP/STL) alongside the electronics deliverables. Deliverables 1. Schematic, PCB layout and Gerber/ODB files 2...

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 &bul...

Advanced OBD-II Vehicle Emulator Development (Freematics MK2 + ESP32) Develop a fully functional advanced OBD-II vehicle emulator based on the Freematics MK2 platform with any additional hardware and custom firmware/software required. The emulator must accurately simulate real vehicles across multiple OBD-II protocols and operate with commercial scan tools as though it were an actual vehicle. Required Features Support CAN, J1850 PWM, J1850 VPW, ISO 9141-2, and ISO 14230 (KWP2000) protocols. Custom firmware for complete protocol simulation and response handling. Vehicle profile library capable of storing multiple vehicle configurations. Import, save, edit, and replay complete vehicle sessions. Accurate VIN simulation (Mode 09). Calibration ID (CAL ID) simulation. Calibration Verifi...

Project Title: Senior PCB Design Engineer – Secure Control Boards for Hair Styling Appliances Project Overview: We are seeking an experienced PCB Design Engineer to develop high-performance control boards for a new line of professional hair styling tools (Blow Dryer, Flat Iron, and Curling Iron). This project requires a focus on high-wattage thermal management, integrated hardware security to protect intellectual property, and coordination with firmware teams for proprietary protocols. Scope of Work: • Schematic & Layout: Design 2-layer or 4-layer PCBs for high-heat consumer grooming tools (12v and battery). • Thermal Management: Implement IPC-compliant trace widths and component spacing for heating elements (MCH/PTC) and high-speed motors. • PCB-Level Security: De...

I have a compact 433 MHz transmitter built around a CMT2219B RF module driven by a GD32E230G8 MCU. Before we invest in the formal lab work, I want an experienced RF-compliance engineer to look over the current schematic and two-layer PCB layout to maximise our chances of passing both FCC Part 15 and the equivalent ISED requirements. The focus is squarely on RF performance. I have no existing test data, so I’m relying on your insight to flag anything that might push us over the limits once we reach conducted or radiated emissions testing. Key areas include the matching network around the module, antenna feed, ground strategy, return-loss considerations, filtering, and any layout tweaks that could shave a few dB off leakage. You’ll receive the design files (Gerber, pick-and-pla...

I need a clean, production-ready schematic built in EasyEDA for a multi-layer board that will ultimately be fabricated as a 2-layer PCB. You will start from my rough block diagram and turn it into a fully annotated circuit, complete with correctly assigned nets and footprints chosen from the EasyEDA parts library (or custom symbols if a part is missing). The finished file should open without errors in EasyEDA’s online editor, pass Electrical Rule Check, and be ready for me to push straight into PCB layout. Please name every reference designator logically, keep signal groupings tidy, and observe standard 2-layer design conventions such as clear ground and power planes that will translate well once I route traces. Deliverables: • EasyEDA schematic file (JSON) • PDF printo...

I'm looking for an experienced Arduino developer to create an interactive experience. The project can be tailored towards educational activities, entertainment/games, or an art installation. Ideal Skills and Experience: - Proficiency with Arduino and microcontrollers - Experience in designing interactive systems - Knowledge of various sensors (temperature, motion, light) - Ability to implement diverse outputs like LED effects, motor movements, and sound Please provide examples of previous work and relevant skills.

I’m developing a compact 1 × 1 inch board dedicated to sensor integration and need an experienced electronic designer to turn my concept into production-ready files. The job involves creating the full schematic, laying out the multilayer PCB, and preparing all manufacturing outputs while keeping signal integrity and power routing clean within the tight footprint. Because this board’s sole purpose is to host sensors, component placement and trace routing must anticipate minimal noise coupling and allow straightforward connector access on at least one edge. You are free to choose the CAD package you’re most efficient with—KiCad, Altium Designer, Eagle, or similar—as long as the final deliverables meet standard fabrication requirements. Deliverables I exp...

I need a clean, compact PCB layout built around the ESP32-CAM module that will serve as the heart of a small, battery-powered IoT device. Space efficiency and low-power routing are crucial because the board must slip easily into a slim enclosure and run for long stretches on a single charge. You’ll start from my rough hand-drawn schematic and translate it into a production-ready design, paying special attention to: correct pin break-outs for the on-board camera, stable 3 V / 5 V regulation from the battery pack, and clear access to the module’s programming pads. If you think a few passive components or protection features will extend battery life or improve signal integrity, feel free to propose them—I’m open to sensible tweaks that don’t bloat cost or boar...

I’m building a proof-of-concept that lets an ultra-low-power board—specifically an ESP32—capture image data and immediately flag early-stage oral cancer. Because the hardware budget is tiny, I need a novel, highly compressed AI architecture that still reaches clinically useful accuracy and inference speed at the edge. The device will ingest live image data from a camera module, run on-device preprocessing, then execute an AI-based model (think pattern-recognition and other machine-learning techniques rather than simple thresholding) fast enough to give instant feedback without off-loading to the cloud. Latency, memory footprint, and power draw must all stay within the ESP32’s limits. If you’re interested, send a detailed project proposal outlining: &bu...

I’m preparing learning material on the operating modes of the ARM Cortex-M3 and need a clear, student-friendly walkthrough that stays at a high level. The write-up should cover all processor modes, how control flows between them, and the typical events (interrupts, exceptions, privilege changes) that trigger a switch. Alongside the text, I want a clean block diagram that visually maps each mode and the transitions in a single view. Keep the shapes and arrows straightforward—think one A4 page that can drop straight into PowerPoint or a PDF hand-out. Deliverables • Concise explanatory document (≈2-3 pages) written for learners • Editable block diagram (SVG, Visio, or PowerPoint) plus an exported PNG/PDF I’ll review for clarity, completeness of m...