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Embedded Systems is a form of engineering that is used to integrate hardware, software, and sensors of all kinds into a single unit that can be used in all kinds of everyday machines, from cell phones to household appliances. The development of such systems requires constant proficiency and technical knowledge of the engineer that specializes in this field, called an 'Embedded Engineer'.
An Embedded Engineer is somebody who creates the firmware based on user requirements, makes sure the unit can properly and safely interact with any other device or incoming data; develops, calibrates and tests the system, and troubleshoots any problem when something goes wrong.
Here's some projects that our expert Embedded Engineer made real:
Embedded Systems technology is a complex yet powerful area for anyone trying to build something custom for their business or their personal use. A dedicated engineer can make sure that any idea a client has in mind becomes reality by providing the expertise needed. At Freelancer.com clients often hire talented embedded engineers that make all kinds of projects real. So if you have an idea that requires embedded engineering creativity, post your project today on Freelancer.com to start bringing it to life!
Müşterilerimiz, Embedded Engineers freelancerlarımızı 11,602 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.Embedded Systems is a form of engineering that is used to integrate hardware, software, and sensors of all kinds into a single unit that can be used in all kinds of everyday machines, from cell phones to household appliances. The development of such systems requires constant proficiency and technical knowledge of the engineer that specializes in this field, called an 'Embedded Engineer'.
An Embedded Engineer is somebody who creates the firmware based on user requirements, makes sure the unit can properly and safely interact with any other device or incoming data; develops, calibrates and tests the system, and troubleshoots any problem when something goes wrong.
Here's some projects that our expert Embedded Engineer made real:
Embedded Systems technology is a complex yet powerful area for anyone trying to build something custom for their business or their personal use. A dedicated engineer can make sure that any idea a client has in mind becomes reality by providing the expertise needed. At Freelancer.com clients often hire talented embedded engineers that make all kinds of projects real. So if you have an idea that requires embedded engineering creativity, post your project today on Freelancer.com to start bringing it to life!
Müşterilerimiz, Embedded Engineers freelancerlarımızı 11,602 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.I'm looking for an experienced PCB designer to integrate several components for a control system product. The PCB will be powered by DC and should be of medium size. Key components to integrate: - SIM module - PZEM modules - ESP32 - LCD display module Ideal skills and experience: - Proficiency in PCB design software - Experience with integrating multiple modules - Knowledge of DC power systems - Ability to design medium-sized PCBs Please provide examples of past work and relevant experience.
I have the stock MED17.1 binary that runs on the Infineon Tricore TC1796 ( Audi A4 2011 ). My end-goal is simple: add a rolling anti-lag feature to the calibration, triggered only when the cruise-control button is pressed. Here is what I need done: • Disassemble the MED17.1 file in IDA Pro and label the key boost, torque and ignition routines so the logic is repeatable in future versions. • Craft a compact patch—either in Tricore assembly or C inserted via inline assembler—that implements rolling anti-lag. The code must: – Arm only when the cruise-control button bit goes high, – Stay engaged while the button is held and vehicle speed exceeds the set threshold (I will provide the hex address for that flag if needed), – Exit cleanly ...
I’ve completed the physical shell for a phone case with a built-in drawer. I now need a freelancer to design and prototype the **electronics + firmware** that detects drawer activity and reliably sends events to the phone/app which I have already developed. (what I need built): * Recommend the best sensing approach to detect **drawer open/close** (magnetic reed/Hall, microswitch, optical, etc.) and design around the case constraints. * Select components and create a complete electronics design: * **Low-power microcontroller + BLE** (or comparable phone connectivity) * Sensor(s) for drawer state * Battery + charging solution (or wired power if strongly recommended) * LED indicator (subtle, optional but preferred) * Provide: * Schematic, BOM, and PCB layout (compact, manufacturable...
I need to bring up the on-chip EMAC on my NXP board so it can reliably handle data transmission over Ethernet using UDP. The hardware is already powered and running the latest NXP SDK; what’s missing is a clean, well-structured EMAC setup that can move payloads out of RAM and onto the wire with minimal latency and zero packet loss. Scope – Configure and initialise the Ethernet MAC, PHY, clocks, and relevant pins. – Implement a lightweight driver or integrate the SDK’s EMAC layer, exposing simple send/receive buffers. – Provide a concise demo that opens a UDP socket, pushes test data across the link, and echoes incoming packets so I can verify round-trip integrity with Wireshark. Acceptance • Link comes up automatically after reset with a valid...
I need help with a circuit design for a small engine tachometer. Issues with noise and pulse ringing at the moment. If you have experience please let me know
I have a device that runs on 12-48v DC, drawing up to 5A at 12v at bootup. This then settles down to 2-3A for normal operation. I need to run this device from my 12v vehicle battery – either via a cigarette lighter plug or direct battery connection. The device runs fine at 12v, but runs better at a higher voltage. The device’s supplied 240v power supply outputs 30v @ 2.0A/60W. The problem is that when the vehicle engine is started, the current drops and the device reboots. I need a circuit and PCB design that will: a) Be robust enough to live in a vehicle b) Switched (off board) – via screw terminals c) Fused (either on PCB or automotive blade fuse connected to PCB via screw terminals) d) Reverse polarity protection e) Reverse connection protection (i.e. po...
I have an off-road RC platform that I want to turn into a fully autonomous vehicle. The goal is for the car to steer itself, manage throttle and braking, and handle lights/indicators without human input while still allowing me to take over with a transmitter when needed. Here’s what I need from you: • Hardware interface: integrate your preferred control board (Arduino, STM32, Raspberry Pi, or similar) with the existing ESC, steering servo, and LED system. • Software stack: write the embedded code and higher-level logic that handles path-planning, obstacle detection, and failsafe switching back to manual control. • Feature completion: automated steering, speed regulation, and programmable light sequences must all work reliably on rough terrain. Acceptance test 1...
I need a fully-synthesizable VHDL implementation of a single-system GPS L1 C/A receiver that carries the signal all the way from raw I/Q samples through acquisition, tracking, navigation decoding, and a basic PVT solver that delivers standard-accuracy position, velocity, and time. The acquisition stage must use a true parallel-search architecture; serial search or matched-filter alternatives are out of scope for this project. The code has to be cleanly structured, well-commented, and accompanied by self-checking test benches that exercise every major block—acquisition engine, tracking loops (DLL, PLL/FLL), data demodulator, ephemeris parser, and the fixed-point PVT routine. Simulation should run in Vivado or an equally common VHDL simulator, with clear instructions on how to reprodu...
I have a new Segway-style scooter in development and need a seasoned embedded programmer to create the entire self-balancing (gyro/IMU) firmware that will ship on the production boards. The scooter is meant for personal transportation, so reliability, safety and a polished riding feel are non-negotiable. Above all, the control loop must react instantly to rider input—acceleration, braking, tilt corrections—without hunting or lag. I will provide hardware access for bench testing as well as real-world ride data; you will transform that into a finely tuned PID (or equivalent) solution that keeps the deck level and feels natural underfoot. Beyond the core balancing logic, I want a highly customizable interface layer: riders should be able to tweak parameters (speed limits, sensit...
I want to take traditional conveyor-belt tensioning a decisive step forward by creating a completely motorized, cable-and-pulley system that adjusts itself on the fly. The goal is to maintain optimal belt tension at all times—compensating automatically for stretch, wear and changing load—so downtime, manual checks and premature belt failures disappear. My vision centres on a robust mechanical layout married to intelligent control. Integrated real-time tension monitoring, wear-detection sensors and load-variation sensing will feed a compact controller that drives the motorised actuator. Wireless control and monitoring must let operators check status or initiate overrides from a tablet if needed, and the firmware should generate predictive-maintenance alerts long before an issue...
I need a double-sided, plated-through-hole PCB for a scientific-industry device. The finished board must fit within 100 mm × 100 mm and be delivered as a complete Altium Designer project. Here is what I will provide once we start: the schematic, mechanical outline, and any component datasheets that are not already in common libraries have a Physical PCB board With Simple Design ( Round Cut PCB size 70 x 70 mm ). Your task is to translate that data into a clean, manufacturable board, route all signals with proper clearances, and prepare fabrication outputs. Deliverables • Altium .PrjPcb with all libraries embedded • Gerber X2, drill and pick-and-place files, ready for immediate fabrication • PDF plots (schematic and PCB) for quick review Acceptance criter...
I'm looking for a skilled developer to create MyZmanim, a smart home display device. This device calculates and shows daily religious times based on sunrise and sunset, updating automatically using your location. Key Requirements: - Displays all prayer times - Uses a custom 5-7 inch TFT SPI display with printed casing - Magnets on the back for fridge mounting and a stand for tabletop placement Ideal Skills: - Experience with custom LCD displays & UI - Proficiency in automated time calculation based on geolocation - Knowledge of Arduino IDE code as will be using esp32s
I need a compact, custom gateway that sits between an existing VAX / OpenVMS host (running DECnet Phase IV) and modern Windows-based SCADA software that only understands raw TCP frames. The current middleware is read-only; this replacement must provide full bidirectional READ and WRITE capability so I can both monitor and issue control commands in real time. Key requirements • Hardware: x86-class embedded Linux controller (Debian or Yocto are fine as long as the kernel exposes raw sockets). • Protocol handling: native DECnet Phase IV on one side; raw TCP frames on user-defined port numbers on the other. In addition, it should expose an OPC UA/DA endpoint for external clients that prefer that interface. • Data scope: “Real Time Data monitoring and control” ...
Building a Catholic Prayer Chime Device — Electronics Design Phase We are developing The Angelus Chime, a battery-powered devotional device that plays authentic church bell recordings at 6 AM, 12 PM, and 6 PM. This is Phase 1 focusing exclusively on electronics design. IMPORTANT: This engagement delivers DIGITAL FILES ONLY — No physical prototypes, no assembly, no enclosure work. DEVICE OVERVIEW A sacred object for the home — a device that rings real church bells three times a day, as they have for 700 years across Europe. No app, no WiFi, no Bluetooth. Just bells. CORE FUNCTIONALITY Plays 2-3 minute church bell recordings at prayer times 3 toggle switches for each prayer hour Rotary switch for 8-12 bell recordings on SPI flash Volume control + large mute button Tim...
The goal is to build a proof-of-concept that embeds additional image data inside the JPEG photographs captured by my drones, using the classic Least Significant Bit (LSB) method. Once hidden, the pictures travel through a FANET where each UAV joins a lightweight consensus round to decide which unit forwards the package to the ground station. By the time the file reaches the base, I want to be able to demonstrate that the payload is intact, immutable, and directly traceable to the specific drone that collected it. Core expectations • A clean, well-commented module that hides and later extracts image-based payloads inside JPEG frames via LSB or other types required. • A simple simulation (or lightweight real-world test) showing at least two drones/nodes running a consensus rou...
I’m updating the firmware for an STM32-based design and need an experienced C++ developer who is comfortable inside STM32CubeIDE. The codebase already compiles and runs on the microcontroller, but several features still require clean, well-structured implementation, performance tuning and thorough testing directly on the hardware. You’ll be working exclusively with STM32 microcontrollers; no FPGA or other targets are involved. Please be ready to pull the current CubeIDE project from my repository, build it as-is, and then extend it in C++17 (or later) while respecting the existing HAL layer and project structure. Deliverables • Updated CubeIDE project with the new or fixed functionality fully integrated • Clear build instructions and a short change log so I can ...
Need getting Ionic Fingerprint from Saliva Need the schematic design circuit for this, with its components
I need a compact laser-based device that can track a golf ball in real time, capture its rolling speed frame-by-frame, calculate deceleration, and then switch seamlessly to measure vertical bounce height as well as the ball’s speed just before and after impact with the ground. Rolling speed data is the top priority, yet the bounce metrics are still essential to the overall solution. Because I’ll be moving the unit between an outdoor green and an indoor practice mat, the optics and housing must cope with varying light levels, surface colours, and the occasional speck of sand or moisture. I expect millisecond-level timestamping on all speed and deceleration outputs, delivered either through an onboard display or a simple USB/BLE data stream that I can log to a laptop. Pleas...
1) Project goal Design a single PCB device for testing cable harnesses up to 25 wires, where both ends of the same harness are connected to the board: Side A: 25 lines (A1..A25) Side B: 25 lines (B1..B25) Total: 50 signal lines on the PCB. The detailed test logic (continuity/shorts/mapping) will be implemented in firmware later. For this phase, the key deliverable is robust hardware (schematic + PCB) prepared for such testing. 2) Scope of work (hardware only) Electrical schematic PCB layout Production files: Gerbers + drill BOM (with specs and acceptable alternatives) Assembly files (pick&place/positions) preferred Short mapping table: MCP23017 pins → A/B line numbers (Firmware is NOT required in this phase. Optional “I2C scan / basic blink” is a bonus.) 3...
I need an embedded engineer to help safely connect a PCB to a lead-acid battery pack in series and integrate 4 external sensors (temperature, humidity, water presence, etc.). The system must read data in Arduino IDE and, if possible, send it to an existing telemetry endpoint (HTTP/MQTT). Scope: Safe wiring from battery pack to PCB Best way to connect and mount sensors Connector and grounding recommendations Simple Arduino example to read sensors and output/send data Experience with ESP32, Arduino, sensors, and battery-powered systems required.
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I’m looking for an experienced electronics designer to develop a complete industrial-grade control system consisting of two devices: 1. Transmitter (TX) – collects inputs from joysticks and other signals (8 analog + 2 digital + AUX). 2. Receiver (RX) – receives data from TX via CAN and drives power outputs. Communication between TX and RX must be via CAN bus. The system must operate on 12V or 24V vehicle/machine installations, with a supply range of 9–27V DC. Scope includes schematic design, SMD PCB design, and enclosure selection/design. ⸻ Functional Requirements TX (Transmitter) • 8 analog input channels (joysticks / analog signals) • 2 digital inputs • 1 AUX signal (logic/auxiliary) • Analog measurement must use an industrial-grade ...
I need a purpose-built Wi-Fi modem that can sit in the field, discover and manage between twenty and thirty of my smart prepaid electric meters at once, then forward their information to a third-party server. Core requirements • Meter side: maintain a stable local link to each prepaid electric meter, poll at configurable intervals, queue data when the Wi-Fi link is down, and reconcile immediately after reconnection. • Network side: connect via standard 2.4 GHz Wi-Fi, authenticate securely (WPA2 minimum), and push three distinct data streams—usage statistics, diagnostics snapshots and real-time alerts—through the API endpoints I will supply. • Throughput: normal operating load is small, but latency for real-time alerts must stay below two seconds under fu...
Got it! Here’s a polished and engaging introduction for your blog post that will hook readers right away: Build Your Own DIY RC Car with Arduino – A Step-by-Step Guide Have you ever dreamed of building your own remote-controlled car from scratch? In this guide, we’ll walk you through creating a fully functional DIY RC car using affordable, easy-to-find components like the Arduino Uno, joystick module, NRF24L01 wireless transceiver, and L298N motor driver. Whether you’re a hobbyist, a student, or just someone who loves tinkering with electronics, this project is a fun way to learn about wireless communication, motor control, and Arduino programming. By the end, you’ll not only have a working RC car but also a deeper understanding of how these components work...
Seeking experienced hardware engineer to build a prototype of a wall-mounted emergency device. Specs: Form Factor: Wall-mounted, compact, durable enclosure (weatherproof if outdoor use intended). Primary Function: Transmit pre-programmed GPS coordinates to a central monitoring location (e.g., server, app, or emergency service) upon activation for real-time tracking. Transmission Methods: Primary: GSM (cellular network) for cost-effective, low-latency sending. Failover: Satellite (e.g., Iridium or Globalstar network) if GSM unavailable. Power Source: Battery-powered with optional mini solar panel for recharging. Standby Battery Life: Minimum 1 year without charging (low-power mode). User Interface: Single button for activation; 2 LEDs for status feedback. Key Features Programming: Devic...
My 4.5 V circuit needs a small solar panel and the proper charge-management hardware so daylight tops the battery up automatically. I’m not sure what panel voltage or wattage is best, nor which controller IC will keep the Li-ion safe—so I need your electronics expertise. Scope of work – I'll share my schematic of the existing 4.5v circuit – Select or design a charge-controller stage that handles lithium-ion chemistry, prevents over-charge/over-discharge, and outputs a stable 4.5 V rail to the load. – Provide a clear schematic, concise BOM with part numbers that are easy to source, and wiring instructions I can follow on perfboard or a small PCB. – Advise on any protection components (diodes, fuses, reverse-polarity safeguards) so the device...
Project Description: I'm building a compact, consumer-grade handheld device that hosts multiple ARM processors and modules on a single 4-layer board. The design must accommodate a high-speed USB hub, balanced power distribution, and impeccable signal integrity without exceeding the layer budget. Components to Integrate: Component Details Interface Luckfox Lyra Zero W ARM Cortex-A7 Linux SBC (65×30mm, 40-pin header) Direct solder or socket Teensy 4.1 ARM Cortex-M7 @600MHz audio DSP (61×18mm) 2.54mm headers SL2.1A USB Hub IC 4-port USB 2.0 hub Surface mount XIAO ESP32S3 LoRa module (21×18mm) 1.27mm headers STM32WB55 Module Dual-core ARM Cortex-M4/M0+ (Flipper brain) 8-pin header PyBoard v1.1 ARM Cortex-M4 backup controller 6-pin header GPS Module NEO-6M/8M 4-pin heade...
My setup is an ESP32 wired to a 2.8-inch ILI9341 LCD (I may swap to the 3.2-inch variant; both share the same driver and pinout). All images sit on an SD card; more than fifty of them may be shown . I need a complete MicroPython solution that pulls each JPG straight from the card and pushes it to the display with no intermediate PC-side conversion. Core needs • Initialize the ILI9341 (ST7789) over SPI, handle 320×240 resolution, and work with both display sizes out of the box. • Mount the SD card, scan a folder, and stream-decode each JPG so the ESP32’s RAM footprint stays within limits. • Cycle through every file in the list inside an endless loop; I’ll decide the delay between frames in a simple variable (e.g., DELAY_MS). • Show each image f...
I need a clean, well-commented Arduino sketch for the Pololu 3pi that lets the robot visit six preset locations, interact with the magnet at each spot, and return to its starting line in under four minutes. The only sensing method available is a magnetic sensor array, so all point detection and interaction logic must rely on that hardware. Two run modes have to coexist in the same program and be switchable through a simple flag, jumper, or serial command: • Intermediate – the robot must physically touch the magnet before leaving the point. • Difficult – the robot should recognise the magnetic field, stop just short of contact, and then continue. Between locations, I expect a mix of straight dashes and graceful curves; please handle path planning so the 3pi&r...
Looking for Sound Engineer – Live Voice Transmission Optimization (Hardware + Embedded) I am currently looking for an experienced Sound Engineer / Audio Systems Engineer who is capable of working on live voice transmission from a tablet to standalone hardware such as Raspberry Pi / ESP32-based systems. * The product is already built and functional * The requirement is mainly for optimization, testing, and technical feedback * Focus areas include: audio transmission stability reduction quality optimization –software integration feedback 5.Real-world performance testing This is a great opportunity if you have experience with: * Embedded audio systems * Live streaming audio pipelines * IoT audio hardware * Signal processing for voice transmission If you have worked on similar ...
I need an experienced electronics / PCB engineer to design a reliable 24/7 traffic light controller PCB. This is a safety-critical industrial system, not a hobby project. System Details: 220VAC traffic light LED modules Control via TRIAC (optocoupler + TRIAC driver) Continuous 24/7 operation ESP32-based control Fail-safe design required Industrial-grade AC mains design Using EasyEDA Requirements: Strong ESP32 hardware experience Experience with AC mains / TRIAC design Experience with industrial / high-reliability systems Comfortable designing fail-safe protection systems Timeline (strict): Day 1: Complete schematic Day 2: PCB placement & routing If it takes longer, it means you are not experienced enough — this is not a complicated project. You must be ready to...
DESCRIPCIÓN: Busco estudiante o técnico de electrónica para realizar pruebas y validación de firmware en un proyecto real basado en ESP32. El firmware ya está desarrollado y estructurado. El trabajo consiste en: * Compilar firmware * Cargarlo en ESP32 * Realizar pruebas guiadas * Reportar resultados La arquitectura del sistema y el seguimiento técnico están organizados mediante asistencia de inteligencia artificial que ya conoce el proyecto completo y va indicando los pasos a ejecutar. El técnico no tiene que diseñar el sistema, solo ejecutar pruebas y reportar. QUE SE OFRECE: Este es un proyecto real que se está preparando para salir al mercado. Además de la remuneración, se ofrece: * Partic...
We need an engineer experienced with MZ Automation openIEC61850 to build a complete IEC 61850 Edition 2.1–compliant SCL package for our Smart Grid controller (Linux-based OEM device acting as an IEC 61850 Server via LAN). Deliverables SCL files: ICD / CID / SSD / SCD (as applicable) Conformance paperwork: PICS / PIXIT / TICS / MICS Automation (preferred): scripts/tools to generate plant-specific SCL from our plant configuration file for future installations Key Requirements All Logical Nodes / DOs are defined in our internal spec — implement exactly what’s listed (no guessing) Logical Node naming must comply with CEI 0-16 (Annex T) Data transmission: some values every 4s, some on change, some on request, plus controls/setpoints from client We want an optimized dataset/r...
Box for 70000 tunnels with PCI transaction in process. View to process in command line. Sertificates installed. Cheap setup. Fast installation. Connections documented. Drop and go for dedicated box setup. Url for inbound and outbound transactions. User and pw. Tunnelling opponent access only. Four certs. Install included.
I'm looking for a device that can measure weight in pounds and operate underwater. It's essential that this device is powered by long-lasting batteries. Key Requirements: - The device must be waterproof and able to function accurately while submerged. - It should measure weight specifically in pounds. - Long-lasting battery life is crucial to ensure extended use without frequent recharging or replacement. Ideal Skills and Experience: - Experience in designing waterproof electronic devices. - Knowledge in weight measurement technology. - Expertise in battery technology for prolonged usage. Please provide examples of previous work and relevant experience in your bids.
I'm seeking an experienced PCB designer to create a double-layer PCB for a consumer electronics radio project. The PCB will include microcontrollers as key components. Key Requirements: - Design a double-layer PCB - Incorporate microcontrollers into the design - Suitable for consumer electronics use Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, KiCad) - Experience with double-layer PCB design - Knowledge of microcontroller integration - Background in consumer electronics Please provide samples of previous work and relevant experience.
Description: We are developing a prototype of a motor control system based on an existing PCB that uses an ATmega16 microcontroller. The current system controls the speed and torque of the main motor and the speed of a secondary motor. Inputs are presently taken from a custom-made keyboard with tactile push buttons, and motor control is achieved by pulling specific GPIO pins high or low in defined sequences. The objective of this task is to replace the physical keyboard input system with a capacitive touch LCD display, where the on-screen UI buttons will perform the same functions as the existing tactile buttons. The touchscreen interface will control motor on/off, speed, and torque, while ensuring that the existing motor control logic based on GPIO sequences remains functionally the same....
I want to turn a Raspberry Pi running CODESYS into a reliable industrial automation node. Your job is to create the complete control application in MATLAB / Simulink using Stateflow, generate the code, import it into CODESYS and prove that it runs in real time on the Pi. The target is an industrial process (details and I/O list come once we start). I need a clean, well-structured Simulink + Stateflow model that covers the sequencing, safety interlocks and regulation logic, then produces compilable CODESYS code without manual patching. Please map the I/O to the Pi’s GPIO or any supported extension modules exactly as documented, and include watchdog handling so the plant fails safe. Deliverables • Simulink/Stateflow model (.slx) • Generated source and export settings ...
I am developing a compact handheld consumer device prototype that requires integration of a rechargeable battery and small electronic module inside a custom 3D printed enclosure. I am looking for an experienced embedded hardware / electronics engineer who can help design and prototype a small, safe, battery-powered system suitable for a handheld form factor. The device will require: • Integration of a rechargeable lithium battery (3.7V or similar) • Safe charging system (USB-C or similar) • Small heating or vapor-generating element OR similar compact load component • Efficient power management and protection circuitry • Compact PCB design suitable for fitting inside a slim enclosure • Guidance on component selection and prototype assembly The enclosur...
I already have the full schematic and the finished PCB files for a board that combines an ESP module with a PIC18F microcontroller. What I’m missing is a clear, practical explanation of how everything talks to each other, especially over UART, and how that interaction is implemented on the physical board. Here is what I need from you: • A step-by-step walkthrough of the signal paths that handle UART traffic between the ESP and the PIC18F, including any level-shifting, buffering, or hand-shake lines that support the link. • A guided tour of the PCB layout that shows where those signals travel—layer changes, vias, ground references, decoupling, and any routing choices that affect integrity or noise. • Simple notes on any supporting circuitry (power rails, ...
I've already built some prototypes of a circuit capable of switching a single 230 V, 16–30 A line to 4, 8, or 12 outputs—without power loss—but none of them have reached the standards I expect. I have schematics, calculations, thermal measurements, and test logs: enough material to clarify every technical detail and speed up your work. I need a senior designer who can transform all this into a final solution, complete with ESP32 firmware, a multilayer PCB (4 or 6 layers, JLCPCB production - 3oz copper), and an accurate and documented simulation before production. Technical requirements to be met: • Maximum energy efficiency, component protection, and precision switching under load. • Integrated remote control, real-time monitoring, and an alarm system. &b...
I already have the full schematic and the finished PCB files for a board that combines an ESP module with a PIC18F microcontroller. What I’m missing is a clear, practical explanation of how everything talks to each other, especially over UART, and how that interaction is implemented on the physical board. Here is what I need from you: • A step-by-step walkthrough of the signal paths that handle UART traffic between the ESP and the PIC18F, including any level-shifting, buffering, or hand-shake lines that support the link. • A guided tour of the PCB layout that shows where those signals travel—layer changes, vias, ground references, decoupling, and any routing choices that affect integrity or noise. • Simple notes on any supporting circuitry (power rails, ...
I need solution for three questions electronics MATLAB/simulations file attached 1.35 1.36 1.39 Only induvial experts and tutors no agencies After this i will have so many projects Fair price flexible with time good availability of time
I'm seeking an engineer to create an intelligent mouse trap focused on monitoring and alerting. The trap should utilize a motion sensor for mouse detection and an actuator to trigger a trap upon detection. Key Requirements: - Motion sensor for detection - Actuator to trigger trap - Notification system for alerts Ideal Skills and Experience: - Experience with sensors and actuators - Knowledge in IoT and notification systems - Background in hardware development and prototyping Please share your relevant experience and approach.
I’m building a smart irrigation setup that links a Raspberry Pi edge server with several ESP32 nodes in the field. Each ESP32 gathers data from soil-moisture probes, compact weather boards (temperature, humidity, barometric pressure), and inline flow meters, then reports everything wirelessly to the Pi for processing. Here’s what I need from you: • Python (Raspberry Pi) and MicroPython/C++ (ESP32) code that ingests the raw sensor streams, pushes them through an on-device model, and decides—within seconds—whether to start or stop the main pump and which solenoid valves to open. • An ML pipeline: training notebooks, a lightweight model (TensorFlow Lite or similar) and the inference wrapper that runs locally. The model must act on current soil-moisture rea...
I’m running an InHand IG502 cellular gateway and need a focused Python add-on that exposes the unit’s current RSSI (raw dBm) as a holding register inside the built-in Modbus server. The immediate aim is simply to monitor signal quality; once the value is available we will pass it through our existing RS-485 link into the DNP3 layer of the external SCADA. Key points you should know while coding: • Device: InHand IG502 (OpenWrt-based, Python 3 available). • Output format: raw signal strength value, no scaling or percentage. • Register must be readable via Modbus-TCP and Modbus-RTU so I can map it downstream. Byte order can be little-endian; just document what you use. • Communication onward to DNP3 happens on my side, so the script only has to populate ...
I'm looking to create an autofish system that reacts to water splash sounds. Requirements: - The system should respond only to water splash sounds. - Input method for sounds should be pre-recorded. - Integration with provided YouTube link audio is necessary (convert to required format if needed). - Also want it to look in chat for the words "Turbo Fishing has procced" if it reads that it'll automatically (or the sound of a firework exploding) It'll automatically click the right click at 20cps for 7 seconds - Some sort of easy GUI Ideal Skills & Experience: - Experience with sound recognition and automation systems. - Proficiency in audio processing and conversion. - Knowledge in fishing technology or related automation. Please include any relevant experienc...
I need a custom ELRS (ExpressLRS) solution for drone control, utilizing an STM microcontroller instead of the original MCU. Key requirements: - Improved range - Enhanced security - Dual band - Mesh networking capabilities Ideal skills and experience: - Proficiency in STM microcontrollers, especially STM32 - Strong background in RF communication and protocols - Experience with drone control systems - Knowledge of security implementations in wireless networks - Familiarity with mesh networking technology Please provide relevant experience in your bids.
I'm looking for an Arduino code that will trigger RGB LEDs to change color based on a pulse rotary dial input. Requirements: - Use of a pulse rotary dial - RGB LEDs whose colors will be controlled by the rotary dial input Ideal Skills and Experience: - Proficient in Arduino programming - Experience with rotary dials and RGB LED control - Familiarity with electronics and circuit design
I am looking for someone to develop hardware on my request, it will be simple projects as seen on you tube. I am interested to know hourly rates, if I provide the hardware and code they would just need to wire them up. Would be nice to have someone from India NCR.
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