Eletrônica Jobs

I am looking for a qualified solar engineer to take my off-grid project from concept through to a build-ready package. The site is currently without grid access, so the system must be fully self-sufficient and sized to match daily household loads plus a modest growth allowance. What I expect you to cover • Accurate load assessment and array sizing • Selection of panels, MPPT inverter/charger, battery bank, and protective gear that balance cost, longevity, and efficiency • Single-line diagrams, wiring schedules, and mounting layout drawings suitable for a local electrician to follow • A clear bill of quantities with unit pricing and a total project cost estimate • A brief technical proposal that explains your design choices, expected performance, and main...

We are in the final stretch before putting our new seawater reverse-osmosis desalination plant into full operation, and I need an experienced commissioning engineer who can step in immediately and steer the hand-over. Your focus will be on three fronts: bring every SWRO process unit through testing and commissioning, train our onsite operations team so they can take over confidently, and fine-tune the system for optimal throughput and energy efficiency. The plant is mechanically complete; piping pressure tests, DCS loops, and MCC energisation are behind us. What remains are the live water runs, performance guarantee runs, chemical cleaning sequences, and all the documentation that proves the plant is ready to deliver product water on spec and on schedule. You will be working side-by-side ...

I need a skilled RF-oriented technician to come on-site to my residential address, sweep the area with a portable spectrum analyzer, and pinpoint whatever is generating a persistent high-frequency, high-pitch squeal. The job is straightforward: confirm the exact source, capture the key frequency data, and hand back a concise report that shows your measurements, screenshots or data logs from the analyzer, and a brief explanation of how you isolated the culprit. If you can suggest quick mitigation steps, even better. I’m only considering freelancers who can show solid, hands-on experience doing field spectrum analysis or similar interference hunts, so please highlight that in your bid. Bring your own calibrated portable spectrum analyzer; no software-only solutions will work for ...

I have an echo-sounding instrument whose current PCB shows unreliable behaviour in the field. I need a skilled hardware engineer to review the existing schematic, pinpoint the root causes of the faults, and create a revised board that is production-ready. You will receive: • The original KiCad project (schematic, PCB, libraries) • Test logs and scope captures highlighting the failures • Electrical and mechanical constraints for the housing What I expect back: • A concise design-review report explaining each issue you find . A power indicator LED. • Updated schematic, PCB layout, and clean net-checking with all errors resolved • New BOM with readily available parts and suggested alternates • Fabrication files (Gerber/ODB++, drill, pick-and-p...

I'm seeking an experienced embedded electronics engineer to help develop a prototype for a wearable medical device or biosensor. The primary function of the device is yet to be determined, but it could be related to monitoring vital signs, tracking physical activity, or detecting specific biomarkers. Key requirements: - Expertise in firmware programming is essential. - Experience with wearable medical devices or biosensors is highly desirable. - Skills in PCB design, sensor integration, and prototype development would be a plus. The ideal candidate should have a strong background in embedded systems and a proven track record in developing prototypes for medical or health-related devices.

My brand-new Waveshare WAVEGO PI4 KIT is still sealed in its bags—no screws turned, no servos mounted—so I need a hands-on expert in Pune to take it from “box fresh” to a stable, walking quadruped. All printed manuals and the official online guide are on hand, but I’ll rely on your know-how throughout because I have zero prior experience with hobby robots. Here’s what I expect you to handle from start to finish: • Inspect every component straight out of the box, flagging or replacing anything missing or damaged. • Complete the full mechanical build: frame, linkages, bearings, tidy wiring, and neat cable management. • Align and calibrate all twelve LX-15D servos, setting the horns at the correct neutral angles. • Flash and conf...

**Project Title:** Industrial Vibration Monitoring PCB Design (Schematic + 4-Layer Layout) – JLCPCB Compatible **Project Description:** We need a complete PCB design for an industrial IoT vibration sensor used in predictive maintenance of rotating machinery (motors, pumps, fans, gearboxes). **Important:** All components must be available on **JLCPCB / LCSC**. Prefer parts that are in stock or have good availability. Avoid parts that require consignment unless absolutely necessary. **Scope of Work:** - Full schematic design - 4-layer PCB layout - Component placement, routing, and silkscreen - BOM with **JLCPCB/LCSC part numbers** - Design notes (power sequencing, sensor power-down, RF layout) **Key Requirements:** **Core Components (use JLCPCB-available equivalents or exact pa...

I'm looking for an experienced PCB designer to turn a provided schematic into a PCB layout. The design must prioritize optimizing signal integrity and is intended for an industrial environment. I will require all the files necessary for pcb assembly (Gerber, BOM, etc,.) Key Requirements: - Use of surface-mount components (SMD) - Industrial-grade robustness and reliability - Experience in designing PCBs with a focus on signal integrity Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, KiCAD) - Strong understanding of signal integrity principles - Experience with SMD layout and industrial applications

​PROJECT DESCRIPTION: We are looking for an experienced PCB hardware designer to develop a production-ready schematic and 2-layer PCB layout for a custom battery-powered LoRa node. TOTAL PROJECT DEADLINE: 5 to 7 days from project kickoff. ​CIRCUIT ARCHITECTURE & KEY COMPONENTS: ​ / RF: Ai-Thinker RA-09H LoRa module. 2 .​Power Supply: ​ * HT7333A low-quiescent LDO (3.3V rail to the RA-09H). * ​SX1308 step-up boost converter (Battery to 12V). * ​MOSFET switch to turn the 12V rail completely on/off via MCU to save battery. ​ 3 .Actuator Driver: RZ7899 H-bridge motor/actuator driver (12V). ​ 4 .Battery Monitoring: Resistor voltage divider linked to RA-09H ADC. ​ 5 .Connectors: Battery input, motor output, programming header, basic protection. 6 .Testing: Dedicated test points and exp...

About us We're a small climate technology company building solar-powered IoT monitoring devices that run off-grid in the field. Our design uses off-the-shelf components, and we write the device software in-house. We're looking for an experienced engineer to review our design and advise us, not to build it from scratch. We're also coming to Shenzhen to source components and have contacts there, the ideal candidate would also be able to help in finding the right suppliers. What you'll do - Review our hardware design and advise on components, connections and protocols - Advise on low-power and solar/battery design, and on outdoor enclosures and connectors - Review parts of our device code where your experience helps - Recommend reliable suppliers in Shenzhen, and poten...

I'm looking for a reliable DC power supply for my coil tattoo machine equipment. It needs to include a rechargeable lithium ion battery that will last running at 12 volts for a minimum of 13 hours. A 1/4” jack, a voltometer, an on off button, and a panel mounted voltometer at minimum. It needs to be as small as possible for ease of travel and obviously cordless unless charging. Thank you Requirements: - Type: DC power supply - Voltage: 12V - Current: 1A, 5A, or 10A (I'm unsure about the exact requirement) Ideal Skills and Experience: - Experience with power supply design and specifications - Knowledge of DC power supply units - Ability to provide recommendations for optimal current output Please provide a detailed proposal including your approach and any relevant experi...

I'm looking for a senior hardware engineer to design the schematic for a compact, battery-powered magnetic wireless charger for iPhone (Qi transmitter, 5–7.5 W output, single-cell Li-ion). Must have proven experience in Qi wireless charging transmitters, power electronics, and lithium-ion battery charging and protection. Deliverables: complete schematic, BOM with manufacturer part numbers, power budget and thermal calculations, and editable source files. All design IP and source files assigned to me. Fixed price only. NDA required before full specification is shared. In your bid, please answer: 1. Which Qi transmitter chip would you use, and why? 2. Show a past wireless charging transmitter project you designed.

Tôi cần xây dựng một hệ thống giám sát dựa trên Arduino để theo dõi nhiệt độ, độ ẩm, cường độ ánh sáng và trạng thái mất điện. Khi bất kỳ thông số nào vượt ngưỡng hoặc khi mất nguồn, hệ thống phải gửi cảnh báo theo thời gian thực qua SMS; nếu anh/chị có thể bổ sung thêm thông báo trên ứng dụng di động thì càng tốt. Yêu cầu chính • Mạch Arduino hoàn chỉnh kèm sơ đồ nối dây, danh sách linh kiện và mã nguồn. • Cấu hình ngưỡng linh hoạt cho từng cảm biến, lưu trong mã hoặc qua giao diện cấu hình đơn giản. • Gửi SMS tự động (ưu tiên dùng SIM800L/SIM900 hoặ...

I’m working on a new piece of industrial equipment and need a tightly-packed PCB dedicated to reliable power management. Space inside the enclosure is scarce, so the board must stay as compact as possible without sacrificing robustness or serviceability on the factory floor. Your job is to take my preliminary block diagram and turn it into a production-ready design: schematic capture, multilayer layout, and the full manufacturing package. I’m flexible on tools—Altium, KiCad, or Eagle are all fine—as long as the output meets standard IPC guidelines and can go straight to my fabricator. Deliverables I need from you • Editable schematic and PCB layout files • Clean Gerber/NC drill set plus IPC-356 netlist • BOM with manufacturer part numbers and cu...

Pic16f1829 , push pull (180 phase shift same duty cycle for both output, no duty cycle invert cycle by cycle) pin details below and function 1, vcc 5v (on switch) 2, fan MOSFET gate signal 3, 10k NTC tie with 5v ground resistor 10k and 100nf pf . 50c fan speed is half 50c -80c full speed above 90c engage fault and run fan 100% 4, mclr ground with 100nf pf 5, 25khz push PWM closed loop with pin 14 adjust duty cycle according to output keep stable voltage max duty cycle 45% 6. 25khz pull PWM 180 phase shift output of pin 5 same duty cycle no invert out . Closed loop with pin 14 max DUTY CYCLE 45% 7, on ok green led signal 8, 190khz 50% fixed duty cycle no distrub perfect and clean 9. Nc 10, fault led signal . pin14 95v fail continuous on, temperature fail twice blink break repeat, 3 b...

The existing board is finished and working; the only task still open is replacing two connectors: • Change the current USB connector to a USB-C footprint that I have already created. • Replace the end-of-board black connector with an IDC-Connector-2x3 footprint, also ready to drop in. All footprints are tested in KiCad, Altium, and the other common suites, and the complete Altium project files are available for reference. No further layout changes are required, and I do not need help with assembly. Deliverables I expect: 1. Updated schematic symbols pointing to the new footprints. 2. Cleaned-up PCB layout reflecting the two swaps, DRC-error-free. 3. Gerber/ODB++ plus native design files in whichever major tool you prefer (Altium, KiCad, etc.). Once these files are d...

Quiero desarrollar una placa basada en ESP32 que integre un módulo celular para un prototipo de producto. Necesito que el diseño contemple: • Esquema eléctrico completo, layout de la PCB y archivos Gerber listos para fabricación. • Integración del ESP32 con un módem que permita conectividad a través de tarjeta SIM. • Selección, optimización y “matching” de la antena — cuento con flexibilidad para antena interna o externa mientras se garantice un rendimiento fiable. • Lista de materiales (BOM) con componentes disponibles en el mercado y alternativas. • Recomendaciones de pruebas de certificación (FCC/CE u otras) y buenas prácticas de diseño para cumplirlas....

I am seeking an experienced FPGA hardware engineer to develop a custom 1:1 emulated PCIe core configuration for an Artix-7 device (35T/75T architecture). The objective of this project is hardware-level device emulation for system driver compatibility testing. The firmware must accurately replicate a targeted legitimate PCIe device configuration space so that the host operating system properly maps the hardware and initializes the standard manufacturer driver environment. Technical Requirements: • Base Framework: Custom implementation utilizing standard PCIe endpoint IP cores (or open-source PCIe protocol analysis frameworks). • Configuration Space Mapping: Precise configuration of Vendor ID (VID), Device ID (DID), Subsystem Vendor ID (SVID), Subsystem ID (SSID), Class Codes, a...

I am looking for an expert Electronics Design Engineer to review, optimize, and finalize a draft KiCad schematic for a custom, battery-powered audio logging device. The core architecture relies on an ESP32-S3-WROOM-1-N16R8-1U module paired with a TDK T5838 digital microphone featuring Acoustic Activity Detection (AAD). The device operates primarily in an ultra-low power standby mode: the ESP32-S3 stays in deep sleep with Wi-Fi completely turned off, while the TDK T5838 remains always-on to monitor the acoustic environment. When a sound trigger occurs, the microphone must wake the ESP32-S3 using an AAD interrupt (via D1, D2, or Analog AAD mode) to record audio onto a microSD card. The ESP32-S3 will wake up its Wi-Fi radio only during a specific, firmware-defined time window to transmit the ...

We are looking for an experienced Sourcing Agent / Procurement Officer with a technical background in Electrical Engineering, Electronic Engineering, or a related discipline. The selected candidate will support a one-time sourcing and procurement project involving electronic components, AI hardware, computing equipment, and related materials. Responsibilities: - Source and identify suitable electronic components and AI hardware - Research and evaluate potential suppliers - Compare pricing, availability, and delivery terms - Support procurement and supplier communication - Identify technically compliant alternatives where required - Review BOMs, datasheets, and technical specifications Expected Deliverables: - A qualified supplier shortlist - A clear comparison of pricing, lead times, ...

Max bid is 45 ### Project: Modify Existing Dispenser PCB for RS485 Communication We have an existing PCB for a specific fuel dispenser brand (XYZ), as shown in the attached image. It connects to the dispenser through four differential communication wires: RX+, RX−, TX+, and TX−, and currently converts the communication to USB. **The objective is to replace the USB interface with RS485 while retaining the existing PCB and dispenser-side circuitry as much as possible.** ### Scope of Work - Analyze the PCB and identify the USB controller and the communication signals between the USB controller and the existing four-wire interface circuit. - Determine the appropriate signal points where the USB communication interface can be bypassed or replaced. - Connect those signals to a sui...

Two of my grill-sensor cables lost their 3.5 mm tips when the plugs were yanked out. The conductors are still intact, so the job is a straightforward re-termination: remove the damaged ends, solder on brand-new 3.5 mm connectors, and add proper strain relief and heat-shrink so the leads can handle outdoor use. I don’t yet have the replacement plugs and would appreciate your guidance on the exact TRS/TRRS style and brand that will mate cleanly with the grill’s jack. Once I order (or you supply) the parts, I’ll ship the cables to you—or, if you’re local, drop them off—to have the work done. Deliverables • Two fully functional cables with new 3.5 mm connectors, electrically verified for continuity and short-free operation • Photo (or brief vid...

I need a complete design package for an LLC resonant converter that can charge a light-load capacitor to 1 kV in no more than 200 µs while keeping the primary current below 5 A. The magnetic component is fixed (Coilcraft FL2810-1LD), and I have already decided on a half-bridge topology, though I am open to brief notes that compare it with a full bridge if this materially improves performance. The work must cover the entire path from theory to verified LTspice waveforms: • Detailed report with full calculations that prove the 200 µs charge time, including reflected-load analysis, magnetizing requirements, and loss estimates. • Feasibility study quantifying how the 5 A primary side limit is maintained across the 5 V – 28 V input range. • Selection and sizin...

Title: Mechatronics Engineer needed to build custom 6mm Rubber Profile Cutting Machine (Arduino + Nextion UI) Project Description: We are seeking an experienced Mechatronics / Embedded Systems Prototyping Engineer to design, program, assemble, and test a benchtop automated cutting machine for a solid, 6mm rubber profile. The machine must operate standalone via a user-facing touchscreen interface. Required Technical Features: 1. Interface: Nextion 3.5" Discovery Touchscreen (for entering cut length in mm and batch quantity). 2. Controller: Arduino Mega 2560 R3. 3. Feeding System: Dual synchronized polyurethane-coated pinch rollers driven by a NEMA 23 stepper motor to ensure a tension-free feed (preventing material stretching). 4. Cutting Mechanism: A high-speed blade actuator (pne...

I’m developing a next-generation padlock that couples robust physical security with modern electronics. The core idea is a tamper-resistant body housing a low-power PCB that supports BLE unlocking, RFID credential reading and an always-on GPS module. A compact solar panel must keep the cell topped up so the lock can sit in the field for long stretches without manual charging. Here is the outline I need your help bringing to life: • Electronics: choose components, lay out the PCB and write the embedded code so the lock wakes only when needed, yet still logs location pings. Expect Nordic-style BLE, an ultra-low-power GPS, RFID reader IC, power-path management and secure element for key storage. • Power strategy: harvest energy from the solar cell, switch gracefully to an ...

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

I'm looking for an experienced electronics engineer to develop a balance charger and discharger specifically for RC drones. The charger should support LiPo and Li-ion batteries, with a maximum voltage of 16.8V. Key Requirements: - Balance charging and discharging functionality - Support for LiPo and Li-ion battery types - Maximum voltage support of 16.8V - Suitable for RC drones - The user should be able to select the battery type, battery cells(1s,2s,3s,4s), calibrate voltage, modes such as quick charging/balance charging/discharging/storage charging. - The user should also be able to select the current. Ideal Skills and Experience: - Expertise in battery management systems - Expert in RC battery such as LiPo and Li-ion battery - Knowledge in embedded systems - Knowledge designing ...

Instalador de alarmas comunitarias con 14 años de experiencia en Chile. Desarrollo una central de alarma comunitaria propia y busco ingeniero electrónico con experiencia en potencia y RF para validar el diseño antes de fabricar las placas armadas (PCBA) en China. EQUIPO: central en gabinete metálico sobre poste, a la intemperie. Se activa con control RF o llamada; hace sonar sirena, enciende baliza y envía SMS. Hasta 250 usuarios, 50 reciben SMS. Panel web para administrar usuarios. HARDWARE: - ESP32 - SIM7600 4G (llamadas y SMS) - Receptor E07-M1101D (CC1101) 433 MHz ASK/OOK, controles de código fijo EV1527/PT2262 - Driver discreto de sirena y 2 relés - Batería 12 V 7 Ah - Antenas fuera del gabinete con SMA pasa-muro REVISAR: 1. E...

I’m opening up a Score 7T (Keefe Group) tablet built on the MediaTek MT8168, board id tb8168p1_bsp, and I need to force it into BROM mode by shorting the correct test points on the motherboard. I’ve done a few hardware-point jobs before, so I understand basic safety and ESD practice, but I want to follow an exact, proven sequence this time. What I expect from you • A clear, step-by-step set of written instructions—my preferred format—covering disassembly, test-point identification (CLK/DAT0 or any pad combination that actually works on this board), timing of the short, and verification with mtkclient. • High-resolution reference photos or annotated diagrams of the Score 7T PCB highlighting the precise spots to short. • Any firmware-side preparati...

Necesito un esquema y PCB completos en EasyEDA que integren los siguientes módulos y funciones: • Slot compatible para los módulos Lilygo SIM7000G y A7670SA. • Dos INA219 independientes: uno para medir la batería y otro para el panel solar. • Regulador de carga solar MPPT CN3791 para paneles de 6 V (entrada dedicada). • Sensor ToF VL53L1X integrado en la placa más un conector para una versión externa. • Cargador de batería basado en TP4056 con sus protecciones. • Conector para batería 18650 y, adicionalmente, para batería Fanso. • Encendido controlado mediante reed switch y MOSFET. • Elevador MT3608 fijado a 5 V. Dimensiones deseadas de la tarjeta: 110,54 mm × 32,89 mm (pue...

My preferred candidate would be a control-engineering researcher or experienced industrial research engineer, ideally with a PhD in control systems, electrical engineering, mechanical engineering, systems engineering or a closely related subject. Equivalent practical experience is acceptable; a PhD alone is not enough. Skill What I would require Control systems and optimisation Practical experience implementing and evaluating model predictive control, including constraints, changing workloads and switching costs. Python and reproducible simulation Ability to inspect numerical code, install a documented environment, rerun experiments and preserve configurations, logs and results. Experimental design and statistics Ability to assess fair comparisons, held-out testing, uncertainty, correlated...

I need an experienced ABB service engineer who can come to our plant, access both the ACS 800 and ACS 5000 series drives, pinpoint whatever is tripping them and get us running reliably again. The job is entirely on-site; I will arrange direct access to each VFD cabinet and any schematics you might request. Standard plant safety rules apply—nothing beyond the usual PPE and lock-out procedures. Your task starts with a full diagnostic: download fault logs, inspect power sections, check cooling, and verify parameter sets against ABB recommendations. Once the root causes are clear, I expect you to carry out or guide the physical repairs—whether that involves component replacement, board swap-outs, firmware updates, or even simple parameter corrections—and then commission the ...

I'm seeking an experienced developer to create a wearable LED suit for professional stage performances. The suit should be controlled by ESP32 controllers and feature WS2812B addressable LED strips and side-glow fiber optics. Objective : Building LED-embedded costumes synced to music beats using Raspberry Pi and XLights. Each costume will have one Raspberry Pi 4 (slave), connected to 4 or more customized relay/driver boards—each controlling a specific body zone (head, arms, chest, legs). We need help configuring GPIO outputs via FPP and customizing the relay/driver boards to handle high-power LED/fiber optics/LED cloth sheet outputs, with independent control of lighting patterns for each zone. The setup must respond to a central master Pi broadcasting music-synced commands wir...

I need an experienced ABB service engineer who can come to our plant, access both the ACS 800 and ACS 5000 series drives, pinpoint whatever is tripping them and get us running reliably again. The job is entirely on-site; I will arrange direct access to each VFD cabinet and any schematics you might request. Standard plant safety rules apply—nothing beyond the usual PPE and lock-out procedures. Your task starts with a full diagnostic: download fault logs, inspect power sections, check cooling, and verify parameter sets against ABB recommendations. Once the root causes are clear, I expect you to carry out or guide the physical repairs—whether that involves component replacement, board swap-outs, firmware updates, or even simple parameter corrections—and then commission the ...

Seeking KiCad PCB Project Archives for AI Training Dataset We are looking for PCB designers, engineering teams, freelancers, and PCB design companies who have existing archives of KiCad PCB projects that they own and may be interested in licensing for AI training and research purposes. We are not looking for new PCB designs or any additional engineering work. We are specifically interested in old, completed, inactive, or archived KiCad projects that are already available. #Requirements - Minimum preferred volume: 100+ KiCad projects - Projects must be created in KiCad only - Editable source files are required - Schematic and PCB layout files should be included - Projects must be your own original work, or you must have the legal right to provide/license them - Projects must not be take...

Go through it.. Design already available here .. Want the Complete Tested Product.

I will be in Guangzhou for the Autumn Canton Fair, and I want a local sourcing partner who truly speaks the language of industrial-grade electronics manufacturing. Your role starts on the show floor: walk the Industrial Electronics halls with me, quickly spot booths whose datasheets, process capabilities and certifications match my specs, and capture clear photos, contacts and technical notes. When a sample is offered, I will depend on you to give an on-the-spot quality check, PCB workmanship, component selection, enclosure tolerances, compliance marks. I expect an advanced understanding of electronics: you should be comfortable discussing SMT line capabilities, IPC standards, reliability testing, BOM optimisation and MOQ implications with factory engineers, not just sales staff. Native-l...

I'm looking for an experienced power electronics engineer to design, build and test a single-phase synchronous buck power stage using GaN FETs. This is a test vehicle, not a product. The purpose is to measure switching behaviour, losses and temperature at high switching frequency. The scope is deliberately short and well defined. The work Single-phase synchronous buck, up to 40 A, outputs at 12 V and 48 V from an 80–120 V bus Power devices: EPC2305, two in parallel per position Gate driver: onsemi NCP51820 The design must be based on EPC's EPC90143 development board, extending its schematic and layout to the paralleled devices. EPC publishes the schematic, BOM and Gerber files Four-layer PCB, with the power loop returned on the first inner layer per EPC's layout guida...

I’m working with Avishkaar AMS and need a skilled block-coder to help me push the platform’s limits. The goal is pure experimentation and testing, so we can tinker, iterate, and learn fast without being tied to a fixed lesson plan. The blocks you create will drive a small robot that also hosts a sensor stack. I want to see it: • move precisely and navigate around a mapped or unknown space, • sense and avoid obstacles in real time, and • log key sensor readings so I can later analyse the data. All code must be built only with the official Avishkaar AMS block palette—no external scripts or text-based hacks—so everything runs natively on the board. Comment your blocks clearly, keep each routine modular, and share the final program file along with a...

My current audio board is built around a single amplifier stage and, while it works, the mid-range comes out sounding strained and unnatural. I want to retrofit an Automatic Gain Control IC that includes or works alongside an A/D converter so the signal path is cleaner, background noise is lower, and those mids finally feel organic. Here’s what I need from you: • Select an appropriate AGC-equipped converter (or discrete AGC + standalone ADC) that plays nicely with the existing amplifier stage and overall supply rails. • Provide a concise schematic showing how the new IC drops into the signal chain, including any necessary attack/release timing components, input protection, and level-shifting. • Supply a brief BOM with part numbers that are in stock from at least ...

I’m building a compact, modular charging station for VRLA / AGM motorcycle batteries and I need the electronics and firmware that will let riders see real-time battery health on a dedicated physical display panel. Modular battery charger for VRLA / AGM motorcycle batteries The core of the job is the health-monitoring logic rather than charge control. I want the system to track three specific parameters—voltage levels, temperature, and accumulated charge cycles—and present them clearly on a small, ruggedized screen that can be mounted on the charging dock or the bike itself. Think of it as a “fuel gauge” for the battery, always on and readable at a glance, no phone or web connection required. Key things I’m looking for: • Hardware schematic an...

Hi, I’m looking for someone who can help me with ESP32 HMI programming. Are you available, or do you know someone who might be interested? we are traying to make a programable inter face wit touch screen capabilities. with drop down menu tabs. home screens to display a background. the idea is to have it just on a picture and be able to swipe to a second menu where it controls relays off and on using an Arduino nano.

Entwickler gesucht: Raspberry Pi 5 Dual-Display Car Dashboard Projektbeschreibung Ich suche einen erfahrenen Entwickler für ein modernes, selbst gebautes Fahrzeug-Dashboard auf Basis eines Raspberry Pi 5 mit zwei Displays. Ziel: Ein digitales Cockpit mit Tacho, Fahrzeugdaten, Infotainment und Steuerung ausgewählter Fahrzeugfunktionen. 1. Display 1 – Digitaler Tacho * Geschwindigkeit und Drehzahl * Tankfüllstand und Reichweite, sofern verfügbar * Motortemperatur und Batteriespannung * Warnleuchten und Fahrzeugstatus 2. Display 2 – Infotainment und Fahrzeugsteuerung * Übersichtliche Anzeige aller Sensorwerte * Reifendruck und Temperaturen * Beleuchtungs- und Kühlungsstatus * Touchscreen zur Bedienung ausgewählter Funktionen * Fahrzeugdiag...

I already have a working LabVIEW 2016 application that drives several axes. A new rotary stage has just arrived and the manufacturer has supplied a full set of LabVIEW VIs. What I need now is for that rotary axis to be woven seamlessly into my current code so it behaves exactly like the existing stages—only with the higher-resolution, precise-positioning capability this hardware offers. Scope • Integrate the vendor’s VIs into my LabVIEW 2016 project. • Extend my motion-control state machine so the new rotary axis can home, move absolute/relative, and report position with the same safety interlocks and fault handling as the other axes. • Update the UI so the rotary position, target entry field, and status indicators appear alongside the existing controls. ...

I need a seasoned power-electronics engineer to take my concept for a small, isolated flyback switching power supply and turn it into a production-ready design for a consumer-electronics product. The supply must accept 230 V AC nominal but remain stable across the full universal range of 85–265 V AC. On the secondary side I want three rails—12 V, 5 V, and 3.3 V DC—sharing roughly 3–4 W total. Exact current splits can wait until you help me finalise the power budget. Compact size is the top priority, so I expect smart component selection, tight transformer design, and a PCB layout that keeps both footprint and height to an absolute minimum while still meeting creepage, clearance, and EMI/EMC requirements. Although efficiency and low standby losses matter (this will ...

My desktop’s hard drive suddenly vanished from both the BIOS and the operating system. All cables and power leads appear firmly seated, yet the drive will not spin up or register on any SATA port I try. I need a skilled hardware repair-focused technician to diagnose the root cause and bring the drive back to a state where it is reliably detected again. The job is strictly hardware-level: testing the drive on proper benches, checking the PCB and controller, inspecting the power delivery, replacing or repairing any failed components, and verifying the unit in a working test rig. If a donor board or firmware flash is required, please let me know beforehand so I can approve sourcing. Deliverables • A repaired hard drive that mounts consistently on a standard SATA interface &bu...

I have a batch of 51-100 boards that need careful through-hole soldering, plus a small run of matching wire harnesses and a few damaged PCBs that require touch-up repair. All components are already sourced and labelled; I simply need steady-handed assembly and inspection so everything leaves my shop fully functional. You’ll be working with both through-hole parts and SMD repairs down to 0603 size, so solid joint quality, clean lead trimming, and consistent flux cleanup are vital. After soldering, each board must pass a quick continuity and visual check before you move on to the next. The wire harnesses are straightforward crimp-and-solder leads that plug directly into these boards, and I’ll provide the pin-out diagrams. Deliverables: • 51-100 fully soldered, tested throu...

Ignition HMI/SCADA screen designer — operator UI redesign (regulated life-sciences) I’m looking for an experienced HMI/SCADA designer to redesign a set of operator screens for a regulated life-sciences application. The existing screens work but need a cleaner, modern, more user-friendly redesign. Scope: Redesign existing operator screens for clarity and ease of use Good HMI practice: clear layouts, logical navigation, readable alarm/status presentation, consistent styling Deliver a clean, modern, professional look Ideal experience: Ignition (Perspective and/or Vision) — required Industrial HMI/SCADA screen design Familiarity with GMP / 21 CFR Part 11 environments a plus Please share relevant HMI/SCADA work samples. Project specifics and screens shared only with the ...

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

I'm looking for a skilled electronics designer to create two custom circuit boards for a car. Requirements: 1. Steering Wheel Control Board: - Manage cruise control and 20+ reprogrammable gameplay buttons. - Must be reliable and responsive. 2. Shifter Position & Power Functions Board: - Handle shifter position data. - Control power functions to manage other circuit boards. Ideal Skills: - Experience with automotive electronics. - Proficient in circuit design and PCB layout. - Familiarity with microcontrollers and input/output handling. Please provide samples of previous work and a brief outline of your approach. Must be in a small form that does not exceed the size larger than 8 inches ( Similar layout to a 2018 Chevrolet Silverado LT steering system + shifter la...