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I am launching an EV charging infrastructure start-up focused initially on Brazil (Florianópolis/Santa Catarina) and am looking for a hardware/embedded systems specialist to help guide the technical development of our charging hardware architecture. This is initially a consulting/advisory role, helping coordinate between external consultants, firmware providers, and hardware manufacturers. The role, in coordination with other team members would largely be responsible for producing a high-quality hardware MVP for market. The goal is to design and validate the hardware architecture for AC Level 2 (22kW) EV chargers and ensure the system is robust, scalable, and compliant with relevant standards. Due to a lack of suitable options, I would like to manufacture and design our own units,...

At Tolog Institute, we don't just simulate; we build. We are currently transitioning our Tolog-Alpha hardware model from a theoretical framework into a physical 3x3 stabilization grid. I am looking to connect with elite engineers and developers who are experts in: High-speed Data Acquisition: Reaching 10k+ SPS on multi-channel MCU architectures (Arduino Mega/ESP32). Non-linear Dynamics: Phase-locking loops and synchronization of relaxation oscillators. Precision PCB Design: Minimizing EMI for sensitive analog feedback loops. We are pushing the boundaries of the Tolog-Mirga Interface. If you are tired of standard CRUD apps and want to work on hardware that challenges the Nyquist limit and explores phase-space stability, let’s talk. The goal? 100% synchronization. The location? Th...

I am working on a compact RF application based on Silicon Labs’ SI4010 transmitter and now need a fresh set of expert eyes to get it production-ready. The hardware is already roughed-in and the core firmware skeleton is compiling, but performance still falls short of our targets in range, spectral cleanliness, and power efficiency. Your task spans three focused areas: • Schematic & PCB audit – flag layout, matching-network, or decoupling choices that could be detuning the front end. • Firmware tuning – refine register settings, timing, and wake-sleep sequencing in the SI4010 API so we hit our duty-cycle and current-draw goals without sacrificing link reliability. • Validation – document improvements with spectrum-analyzer plots, RSSI ver...

I am expanding the C language so it speaks directly to microcontrollers, specifically the ARM family on the ARM-v8 architecture. The goal is a clean, lightweight extension that lets developers toggle ports, poll sensors, drive LEDs or motors, and handle real-time tasks simply by touching the right memory-mapped registers. The finished tool-chain must compile down to code that runs fast, in tiny footprints, with deterministic timing. Think of the kinds of binaries you would drop into washing machines, automotive modules, or medical devices—only here the target is any ARM-based microcontroller. You will provide: • A documented language spec describing new keywords, pragmas, or intrinsics that expose registers, GPIO, interrupt vectors, and timing primitives. • A working ...

I’m looking for an experienced developer who can build fully emulated firmware for a DMA card. The firmware should be compatible with Windows and capable of emulating several key functionalities, including: 100% CFG The configuration space of the firmware should perfectly replicate that of a legitimate device, allowing it to be detected and recognized by the system as authentic hardware. BAR Support BAR (Base Address Register) represents the memory region inside a PCIe device. The BIOS reads this information in order to properly communicate and interact with the device. Emulation Correct BAR handling ensures that when a driver sends a request to the PCIe device’s BAR, the firmware responds with the appropriate data, effectively imitating the behavior of a real device. Full ...

Project Brief – Custom LoRa Wireless Button Trigger (USB Keyboard Device) Project Overview I am looking for an experienced embedded systems / hardware developer to design and build a custom wireless trigger system using LoRa communication. The system consists of: Handheld Transmitter (with button) USB Receiver (connected to a computer) When the button on the transmitter is pressed, the receiver should emulate a USB keyboard and send an ENTER key press to the connected computer. The device must be reliable and suitable for frequent use, therefore rugged connectors and proper enclosures are required. System Architecture The system will consist of two hardware devices. Wireless Range: At least 300-500 Meters Indoor. 1. Transmitter (Handheld Remote) A compact handheld remote devic...

I’m building a suite of custom applications around the ESP32 and its BLE capabilities and need a skilled developer who can stay with me over the long haul on a part-time, as-needed basis. The work is a mix of firmware coding and light hardware design, so you should feel equally at home flashing code with ESP-IDF/Arduino C++ and laying out simple PCBs or reviewing schematics. Core task The boards will gather data from several sensors and peripheral modules, then broadcast or exchange that data over BLE with my mobile apps and back-end services. So far, the project roadmap includes: • Temperature sensors • Motion sensors • Humidity sensors • GPS, LoRa and RFID modules Your role – Extend and optimise the ESP32 BLE firmware to handle the data flow fro...

# Design two PCB Boards in EasyEDA for later JLCPCB manufacturing, including assembly. I am open to professional recommendations regarding peripheral components (sensors, power converters, connectors) and layout optimizations. However, the MCU selection for both boards is fixed as specified below. For Board 2, I prefer the CH32V003 but am open to other CH32 variants if there is a strong technical reason. ## Board 1: ESP32-H2 based BLE monitoring device prototype. - MCU: ESP32-H2-MINI-1-N4 (Internal 4MB Flash). - Sensors: LIS3DHTR (Accelerometer), GXHTC3 (Temp/Hum), MSM261DHT006 (I2S Mic Top Port). - Constraints: - Height: Max 5.0 mm (including components and PCB - Battery holder should be as low as reasonable like Keystone 3003). - Width: Max 25 mm. - Length: Any. - PCB ...

Saya memerlukan rancangan lengkap untuk robot medis setinggi ±70 cm yang mampu: • Mendeteksi berbagai penyakit melalui panel deteksi dan pemindai tubuh • Melakukan hingga 40 kali tindakan operasi ringan • Mencetak laporan tertulis berisi hasil diagnosis langsung dari slot di bagian depan robot Lingkup pekerjaan meliputi: 1. Konsep mekanik dan elektronik—termasuk tata letak panel deteksi, modul pemindaian tubuh, serta lengan atau instrumen operasi. 2. Skema sensor dan algoritma deteksi penyakit (kanker, demam, dan kondisi umum lainnya). 3. Desain sistem pencetakan otomatis untuk laporan tertulis. 4. Integrasi perangkat lunak awal yang mengoordinasikan proses pemindaian, analisis, dan eksekusi operasi. 5. Diagram kontrol, daftar komponen, serta pan...

I want a piece of wearable technology that creates a protective bubble just around my body, blocking or seriously attenuating incoming RF signals while also giving me the option to see what is trying to get through. In other words, it should both shield my own bio-signature from external probing and help me detect any active transmissions aimed at my immediate vicinity. The environment is highly personal—think a one-meter radius wherever I move—so the solution needs to travel with me rather than sit on a desk or in a wall. Comfort, size, and battery life therefore matter almost as much as raw shielding performance. What I imagine is a compact, self-contained module (belt clip, pendant, or similar form factor) that combines three core functions: 1. Real-time RF spectrum ...

I need a seasoned embedded engineer to design and implement a lean Time-Division Multiplexing protocol that funnels several high-speed ADC channels into a single, reliable UART stream. The end goal is clear: squeeze the maximum possible throughput out of the link without sacrificing data integrity. The work revolves around three core competencies—TDM protocol development, raw ADC data handling, and low-level UART communication—so fluency in each of these areas is essential. Our front-end hardware already produces digitised samples via a bespoke analog-to-digital conversion stage; your task is to move those samples efficiently over UART, interleaving them with tight framing, minimal overhead, and built-in error checking. Key deliverables • Well-documented C/C++ (or equi...

I’m building a custom handheld that plays original Game Boy Advance and Game Boy Color cartridges and I need the entire internal hardware engineered for it. I will be designing and manufacturing the outer shell myself, so your focus will be everything that sits inside the case: • A reliable GBA/GBC cartridge reader is the top priority; it must boot retail carts flawlessly. • Back-lit LCD (or IPS) screen driven at the correct refresh rate with minimal tearing. • Stereo speakers plus a small on-board amplifier and 3.5 mm headphone jack. • Rechargeable battery pack with USB-C charging and power-management circuitry (fuel gauge, protection, and safe-charge IC). • Responsive D-pad, A/B + L/R buttons, Start/Select, and volume control interface routed to a ...

PCB Design Brief Timeline Media Dock Controller Board This project requires a KiCad PCB design for the first prototype of a open source Media Dock. The dock is a hardware reader device used to interact with physical Media Volumes, which are media cartridges containing either storage media (SD card) or NFC identification tags. The board will be installed inside a dock enclosure and connected to a front display. Core Features The PCB must include support for the following components: Microcontroller ESP32 module (recommended) or equivalent microcontroller suitable for handling: SD card access NFC communication display control system logic NFC Reader The board must include an NFC reader chip (such as PN532 or equivalent) used to detect and read NFC tags embedded in Timeline medi...

This project is about building a physical “AI Secretary” system that combines a premium desk device with ultra‑simple wireless buttons people can stick anywhere to reach the same assistant. The goal is not just a gadget, but a coherent hardware family that makes interacting with my AI models feel tangible, fast, and effortless. At the center is the Desk Hub, a compact, high‑end box that lives on a desk like a small instrument. It has a small front display, a few physical buttons, a subtle light ring or LED bar, a microphone, and a speaker. Internally it runs on an ESP32‑class microcontroller with Wi‑Fi and Bluetooth. The Hub is always powered via USB‑C and always connected to my cloud backend, where all speech‑to‑text, language model processing, tools, and text‑to‑speech live. ...

I need an experienced FPGA programmer to assist with a data processing application. Key Requirements: - Proficiency in at least one of the following FPGAs: Xilinx, Altera, Lattice - Expertise in data processing applications - Familiarity with VHDL, Verilog, or SystemVerilog Ideal Skills and Experience: - Proven track record in FPGA programming - Strong background in data processing algorithms - Ability to work with various FPGAs and HDLs Please provide relevant experience in your bids. We need to develop ethernet hub in fiber optic 2 ports , and 16 SPI for chip led controller using data and clock . SPecia Ethernet protocol defined by us.

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

We are developing a luxury smart ring wearable and are looking for an experienced hardware engineer to design a compact PCB/FPC for this device. This is a very small wearable device, so experience with ultra-compact electronics is essential. Device concept: Smart ring with biometric sensors and Bluetooth Low Energy connectivity. Main components planned: • Nordic nRF5340 BLE SoC • MAX86174 optical biometric sensor (PPG) • ICM-42670 motion sensor (IMU) • TMP119 temperature sensor • nPM1304 power management IC • External SPI Flash memory • Li-Po micro battery Design constraints: • Ring thickness target: 3–3.5 mm • PCB width: approx 5.5 mm • PCB length: approx 26–30 mm semicircle layout • Extremely low power consumption ...

1: Simple Arduino device detecting a switch from a device 2: 2 RBG light strips with 16 LEDS 3: 4 input outputs for on and off

I look for hardware developer. Electronics schema and pcb designer.

Quiero que revises y mejores mi circuito basado en un Xiao ESP32-C3 que controla una tira EL de 1,65 m mediante un inversor 3,7 V DC → 100 V AC, un sensor táctil TTP223 y un MOSFET lógico (AO3400, IRLZ44N o SI2303). Lo que más necesito es la mejora del circuito existente, poniendo el foco en la optimización de la eficiencia energética. Aunque sé que el mayor consumo proviene de la propia tira EL, quiero exprimir al máximo la batería Li-ion de 1 600 mAh para alargar la autonomía más allá de las 4 h actuales sin sacrificar brillo. Tareas concretas • Proponer el esquema más compacto posible, manteniendo componentes SMD de fácil adquisición. • Seleccionar el MOSFET l&oacut...

I am looking for an engineer or a small engineering team to help build a working prototype of a wearable smart ring that communicates with a thin wallet card device placed in a wallet. The purpose of the device is to prevent wallet loss by alerting the user when the wallet moves more than a short distance away from the ring. The system should provide two types of alerts: a vibration alert in the ring and an optional audio alert. The project goal is to create a fully working prototype that demonstrates the concept in real life. Experience with miniature electronics, wearable devices, Bluetooth communication, and prototype development is preferred.

I’m building a small arcade-style attraction made up of six identical stations. Each station will recognise when its hand-held controller is lifted by means of a magnetic sensor—or any other proper kind of sensor —then launch a three-minute countdown. Here is the user flow I need you to realise: 1. Controller is lifted → internal timer starts. 2. An OLED screen at that station immediately shows the remaining time, counting down in real time. 3. When the three minutes expire the screen simply replaces the countdown with a clear “Game Over, move to next zone ” message + a buzzer or light; 4. Once the controller is set back the system must reset itself, ready for the next player. Hardware thoughts so far: magnetic (reed or Hall) sensor to detect li...

I have a commercial IR-band Laser device with essentially two "Modes" - NORMAL and TRAINING, or restricted. Switching between the two can only be accomplished by accessing the Firmware via a proprietary 8-pin connection, for which I do not have a cable or interface. The candidate must either A) build a custom breakout to connect to the proprietary connector, or B) modify the OEM CONTROLLER pad and cable. Once the system is accessed, no custom coding, overwriting, or modification of the firmware will be required; the Candidiate need only identify the language, access the settings, and "flip the switch" between the two settings profiles. The hard part will be creating the connection. Something as simple as a POGO pin may be sufficient, but I am not qualified to say. T...

I am looking for an experienced mobile app designer/developer to help create the first prototype (MVP) of a mobile app Please let me know if you have experience designing sports performance or wearable technology apps, and if you can share examples of your previous work. Thanks

Hi everyone, I’m currently looking for a talented freelancer who has strong experience with Flowcode 10 and can create an amazing and efficient program for a project I’m working on. -Must be comfortable building programs in Flowcode 10 -Able to design clean, well-structured logic and functionality -Experience with microcontroller projects is a plus If you’re skilled with Flowcode and interested in collaborating, please comment below or send me a direct message with: • A short introduction • Your experience with Flowcode • Examples of previous work (if available) Looking forward to working with someone passionate about building great programs!

I need the internal circuitry of the KK-82MS scientific calculator documented so I can design a drop-in replacement PCB. Your job is to open the unit, trace every relevant signal, and give me a clear map of what connects where. The focus is on both LCD behaviour and the button-scanning scheme, so I expect you to show how each LCD segment is driven, which pins act as commons, how the microcontroller multiplexes them, and the exact keyboard matrix rows and columns the processor polls. Feel free to combine a logic analyser, multimeter, oscilloscope, or any other bench tool you trust; choice of instrumentation is up to you as long as the final data are unambiguous. Deliverables • High-resolution photos of the calculator fully disassembled, including close-ups of the flex cables and IC m...

I have a stable FreeRTOS-based firmware that currently compiles only under my portable Arduino IDE 1.8.13 setup for the SAMD51 MCU. I now want the project to build and run cleanly in the latest Arduino IDE without carrying along any of those version-specific hacks, board package pin-tweaks, or legacy library work-arounds. Once the codebase is modernised, the next step is to extend it with new sensors. You will receive the present firmware, board-support files, and the partial sensor drivers at project start.

Hi, I'm looking for an experienced PCB designer to create a custom carrier/breakout PCB for a compact handheld device. No firmware or software needed — design only. Core Module: LILYGO TTGO T-Call V1.3 (ESP32 + SIM800L GSM) — mounted on the PCB via pin headers Components to integrate on PCB: OLED Display (SSD1306 128x64, I2C, 4-pin): Mounted above the PCB using standoff spacers — 4 mounting holes required Height will be adjusted with standoffs 4-wire cable from display soldered directly to PCB pads Buttons: 1x membrane switch connector (2-pin) for main button 2x additional button footprints connected to spare GPIO pins (for future use) Buzzer: Passive buzzer mounted directly on PCB Connected to designated GPIO via NPN transistor + flyback diode driver circuit ...

I need an engineer or team to create a working design for a parcel dimensioner that rivals the accuracy and reliability of a Cubiscan 325. The unit will live in a busy warehouse environment, so durability and quick “drop-and-scan” operation matter as much as precision. It doesn't have to be a similar design, but a similar function and success rate at measuring small irregular objects to the same size capability. Scope of measurement • Mixed-material parcels (paper, cardboard, plastic—anything that routinely moves through a fulfillment line) • Dimensions captured: length, width, height only—weight integration is not required at this stage Core expectations I’m looking for a complete, production-ready package: mechanical layout, electronic...

I need a complete hardware-and-firmware solution that blends a PIC microcontroller with Arduino-compatible modules on a custom-made PCB. The end goal is to streamline several industrial processes, and I also want the design flexible enough to drive lighting, heating & cooling, and security subsystems that resemble home-appliance automation. Here is what I envisage: • Schematic and PCB layout ready for fabrication, including a clean separation between the PIC control core and any auxiliary Arduino shields or sensor breakouts. • Embedded C / Arduino-style firmware that handles real-time control loops, sensor inputs, and actuator outputs for an industrial environment. • A concise BOM with component part numbers that are actually in stock. • Production-ready Ger...

I’m building a microcontroller-based system around an stm32 and need compact, reliable embedded-C firmware that lets me read multiple sensors and move their data cleanly through standard communication channels. The core of the job is classic microcontroller programming: bring up the chip, initialise the peripherals that the sensors require (typical I²C, SPI or simple GPIO timing), perform periodic reads, apply any basic filtering the devices recommend, then expose the results over the communication protocols we agree on—UART is mandatory; CAN or USB-CDC would be a welcome extra if time allows. You will be working with the latest STM32CubeIDE tool-chain, so please be comfortable with HAL and, where efficiency demands, direct-register work. I’ll supply full pin-outs, ...

I'm seeking an expert to prototype the electric chassis wiring for an electric trolley designed to transport tools. Key requirements include: - Design and implement wiring for electric chassis - Ensure safety and reliability Ideal skills and experience: - Electrical engineering background - Experience with electric vehicle wiring - Strong problem-solving skills Please provide relevant experience in your bids.

Note - I want someone to make & get one machine ready for me so please bid if you can handle everything from design to manufacturing. I am developing a compact, battery-powered device that continuously feeds a roll of sticky mat across a doorway so the exposed surface always stays clean. The concept is simple: a fresh section of mat is pulled from one spindle, laid flat, and the used layer is wound onto a take-up reel. Here’s what I already know I want: • Time-based automatic control that advances the mat precisely every hour. • A low-profile, walk-safe deck suitable for hospital corridors and dusty construction entries alike. • A rigid steel frame for durability, yet light enough to remain truly portable. • Quiet, sealed gear-motor driven by a rechargeable ...

The original schematics and firmware sources for my existing motherboard are no longer available, yet I still need to keep the product alive and solve a series of recurring hardware failures. The immediate objective is to reverse-engineer the board in detail so I have a complete, accurate picture of how every power rail, I/O interface, and embedded controller is wired and programmed. Once that knowledge is captured, I want a refreshed design that removes today’s failure points and is ready for a short production run. Work starts with non-destructive teardown, high-resolution imaging, net tracing, and firmware dumping via JTAG/SWD or any other proven technique. From there the task moves into schematic recreation (Altium Designer or KiCad preferred), BOM generation with current compon...

Project Overview This project aims to develop a small WiFi gateway that connects to a Danfoss EKC 202C refrigeration controller via Modbus RTU (RS-485) and provides a local web interface. The system should allow monitoring of key controller values and limited control via a browser. The first version is a local-only solution without cloud connectivity, but the architecture must allow future expansion to cloud services. Hardware Assumptions • ESP32 or similar WiFi-enabled microcontroller • RS485 interface module for Modbus RTU communication • Connection to Danfoss EKC 202C controller (via Modbus adapter) Setup Flow • On first boot the device starts its own WiFi Access Point • User connects via smartphone or laptop • User opens configuration page at • Use...

I’m putting together an all-terrain rover that pairs a Raspberry Pi 5 with an Arduino. The Arduino will sit close to the hardware, polling and driving everything from temperature-humidity probes and distance sensors to an IMU (pitch/yaw/roll, altitude, compass), ESC-PWM motor controllers, speed-over-ground tracking and battery-management read-outs. All of that raw data needs to flow up to the Pi, where it is bundled, logged and pushed over a 4 G link. The Pi also runs the user interface on an onboard touchscreen. I want that interface to launch straight into a clean dashboard with drag-and-drop style widgets so I can rearrange or resize gauges, graphs and buttons while in the field. On the software side I need: • Firmware for the Arduino that publishes every sensor value pl...

I’m building an automated live-play poker table and need the complete RFID hardware blueprint that will let software read every chip on the felt in real time. The table will hold well over 100 tagged chips at once, and I want reliable High-Frequency (13.56 MHz) reads at a maximum distance of about 10 cm from the antennas under the layout. Your task is purely on the hardware side: define an architecture that can see each chip as stacks move, bets slide, and pots grow, then pass clean data to the software team through a simple API or wired interface of your choice. Key expectations • Robust HF antenna array layout sized for a poker table, including multiplexing strategy to handle >100 simultaneous tags without collisions or dead zones. • Reader, controller, and MCU/FPG...

I need a compact 2-4 channel analog MEMS microphone array built around an XMOS processor. The board must perform real-time beamforming, echo-cancellation and noise-suppression, then expose a clean audio output through straightforward header pins so it can be patched into downstream hardware without fuss. Size matters here: the smaller the PCB, the better. I’m expecting you to handle the full hardware cycle—schematic capture, PCB layout, component selection and a ready-to-order BOM—plus the XMOS firmware that brings the DSP features to life. Your code should compile and run on the free tools from XMOS; please include any scripts or tuning utilities you rely on. Deliverables • Production-ready Gerbers, pick-and-place file, annotated schematic • BOM with supp...

I’m building a small-footprint PCB around the ESP32 that will serve as the core of several IoT devices. The board must expose reliable Wi-Fi, Bluetooth, and flexible sensor headers so it can drop straight into prototypes and low-volume production runs. Here is the scope I have in mind: • Schematic capture for the ESP32 module with stable power-management, antenna clearance, and USB-to-UART programming interface. • PCB layout (2-layer is fine if performance allows) that remains within 50 × 50 mm, ready for standard SMT assembly. • Breakouts or onboard footprints for common environmental sensors; I haven’t finalised the exact parts, so leave room on I²C and a couple of ADC/GPIO lines for temperature, humidity or motion modules. • Production...

Wir entwickeln ein Music Tech Produkt, das die komplette Signalkette von E Gitarre und Bass bis zum Lautsprecher in einem System abbilden soll. Das System vereint kabellose Übertragung, Echtzeit Audio Processing, ein App Interface für Presets und Steuerung sowie eine Plattform Perspektive, sodass Sounds und Setups reproduzierbar werden und später erweitert werden können. Unser Fokus liegt auf einem bühnen und tourtauglichen Workflow, der auch in realen und stark gestörten 2,4 GHz Umgebungen stabil funktioniert. Es existieren bereits Hardware Prototypen und mehrere Iterationen von Sender und Receiver, unter anderem auf Basis von STM32 und ESP32. Die Zusammenarbeit ist auf mindestens zwölf Monate ausgelegt. Für die Rolle gibt es die Möglichkeit, ...

Client needs a VoIP Intercom Station operating in Standards Based SIP. Developer must have experience working with SOC like NanoPI and OrangePI. Developer must meet the following list of requirements so as not to waste our time. Embedded Linux Development Strong experience developing software for embedded Linux systems Experience with custom Linux distributions (Debian/Ubuntu) Kernel configuration, device drivers, and hardware interface support Bootloader and system startup (U-Boot or similar) Experience working with flash-based storage systems Linux system optimization for embedded hardware VoIP / SIP / Networking Experience implementing or maintaining SIP-based communications systems Knowledge of RTP / RTCP media streaming Familiarity with VoIP codecs such as G.711, G.729, Speex Un...

I need a custom power supply designed specifically for consumer electronics, with a focus on automation systems. The power supply must output 12V. Key requirements: - Suitable for consumer electronics and automation systems. - 12V output voltage. Ideal skills and experience: - Expertise in power supply design. - Experience with consumer electronics and automation systems. - Knowledge of safety standards and regulations. Please provide your portfolio and relevant experience.

My drone refuses to finish its latest firmware update and is now stuck in an endless restart loop. I need an experienced developer who has already dealt with drone firmware quirks to track down the root cause, flash the correct binaries if necessary, and get the aircraft flying again. The work is strictly troubleshooting: no new features or redesigns—just a clean, stable fix. While the main symptom is a failed firmware load, I’m open to your testing any related areas such as connection hand-shake or crash logs if you suspect they’re part of the problem. Deliverables • Diagnose the exact point where the firmware update fails • Apply or guide me through the corrective procedure (new build, bootloader tweak, or safe-mode flash) • Verify that the dr...

Looking for a wiring harness designer / electrical consultant to guide us on oven wiring, especially for LCD display integration, controller connections, wire routing, connector selection, and heat-safe harness design. Need practical consultation on: display wiring power vs signal wire separation routing through door hinges / moving sections connector and cable selection high-temperature protection manufacturable harness design Experience in appliances, industrial equipment, ovens, incubators, or similar systems is preferred. Please share: relevant experience similar projects display/HMI wiring experience high-temperature wiring experience Add these screening questions to filter better candidates: Have you designed wiring harnesses for ovens, appliances, or heated equipment?...

Looking for an electronic hardware designer / embedded consultant to help select the right low-cost, reliable, and easily sourceable microcontroller in India for products like ovens, incubators, and similar equipment typically employing a PID controller, a LCD/SPI/UART based display with read/write USB option and few IOs. Need someone who can handle both: technical recommendation of the microcontroller commercial sourcing guidance in Hyderabad / India The person should be able to suggest the best MCU based on cost, availability, reliability, peripherals, and production scalability, and also guide on vendors/distributors, pricing, MOQ, and backup sourcing options. Experience in embedded systems, industrial electronics, BOM optimization, and Indian electronics sourcing is strongly prefe...

I’m integrating a NEMA-17 stepper into a small robotics prototype and need reliable position feedback. My current hardware stack is an Arduino Uno, a standard A4988 driver, and an incremental rotary encoder mounted on the motor shaft. What I need from you is a clean, well-commented sketch that: • Drives the stepper using the A4988, • Reads the encoder in real time, • Reports absolute position (in steps or degrees) over Serial, and • Lets me set a target position via Serial and have the motor move there, stopping within one encoder count. Please include a brief wiring diagram (hand-drawn or Fritzing is fine) so I can replicate your setup, and note any libraries you rely on beyond the Arduino core. I’ll consider the job complete once the code compi...

I have a multi-rotor nanodrone running ArduPilot that must fly semi-autonomously via GPS waypoints. The core of the job is to configure the ArduPilot stack so the craft can: • Accept a pre-loaded waypoint flight plan • Accept inject, delete, or reorder waypoints in real time through a long-range data link • Provide the FC ready to integrate: on-board camera, LiDAR, other UARTS devices • Execute a dependable Return-to-Home routine triggered by failsafe, low battery, or a command from the ground station I already have the flight controller, ESC, batteries, motors, associated wiring, and drone frame What I need is the firmware configuration, leveraging COTS Ardupilot and MAV-link. At power up, the drone shall arm and launche with minimal manual intervention, besides the...

We are developing a carwash kiosk control board that will work together with our Paymore TPOS device, and we are looking for an experienced embedded hardware designer to design a production-ready PCB. This is a real commercial product that will go into mass production, therefore the design must be industrial-grade and manufacturable. The board will control a P10 LED panel (HUB75) that runs continuously 24/7, displaying countdown timers and simple messages. The system must also include Pulse+ and Pulse− inputs that can operate either as dry contact inputs or opto-isolated inputs, counting pulses and triggering system actions. Based on the detected pulses, the board must activate one of 10 independent output channels that can drive 5V or 24V signals for a defined period and then autom...

I need a robust arc-suppression circuit engineered specifically for my RF welding machine. The goal is simple and non-negotiable: stop destructive arcing before it reaches the generator or matching network, protecting the entire system from costly downtime and repairs. Key points you should know up front • Purpose: prevention of equipment damage only—operator safety circuits are handled elsewhere. • Architecture: solid-state components throughout; no relays or mechanical contacts. • Ratings: I will share the operating voltage and current range once we start, so your design must be adaptable within those limits. What I expect to receive 1. Schematic with clearly labeled protection stages (detection, quench, reset). 2. Bill of materials with manufacturer p...

I'm seeking an experienced Rockwell PLC and touchscreen programmer to automate our manufacturing processes. We already have the necessary hardware in place. Key Requirements: - Develop a touchscreen interface for: - Real-time data monitoring - Control commands - System alerts and notifications Ideal Skills and Experience: - Proficiency in Rockwell PLC programming - Experience with touchscreen interface development - Background in manufacturing automation - Ability to work with existing hardware setups