Circuit Design projects — HireLancer archive

ID / Date Listing

CAN Message Converter with Adafruit Feather!

I need a Python/Arduino developer to create the code for an Adafruit RP2040 CAN board. The board will take in an analog voltage and output to a CAN based device...

HL-40421505

PCB Design and Firmware needed for ESP32 Based NFC Reader with Relay Output

I need an experienced embedded systems and PCB design engineer to design a compact NFC Reader module based on the ESP32 microcontroller and NFC transceiver. The...

HL-40421223

KiCad RFID Antenna PCB Design

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing f...

HL-40420519

Expertise Needed for Mixed-Signal Control Board PCB Design

I'm looking for an experienced hardware engineer and PCB designer to deliver schematic and layout for a mixed-signal control board on a tight timeline. This pro...

HL-40420402

Wearable Video PCB Design

I need a compact, low-power PCB engineered for a wearable that can both record video and react to motion events. The board must support a micro camera module, m...

HL-40420306

SMART PDU Hardware Design

I’m looking for a skilled hardware-and-firmware engineer to create a SMART Power Distribution Unit that I can move quickly into production. The unit must includ...

HL-40419469

Arduino Dimmable Lighting Automation

I want to set up an Arduino-based home-automation module that lets me dim household lights smoothly from either physical buttons or a simple serial/Bluetooth/wi...

HL-40418958

Electrolysis Circuit for Silver Electroplating

I'm seeking an experienced engineer to design and create a circuit and board specifically for electrolysis to be used in electroplating silver onto metal surfac...

HL-40418672

Arduino Touch-Triggered Sound Board

I’m building a small interactive sound board driven by an Arduino and the MPR121 capacitive-touch controller. Between five and eight copper-tape pads will act a...

HL-40417229

ESP32 Prototype PCB Design

I’m putting together a small-run prototype built around an ESP32 S3, small display, micro sd card reader, speaker, and some buttons. I have much of the work com...

HL-40417085

Simulink Push-Pull Converter Model

I need a runnable MATLAB/Simulink file that captures the core behaviour of a Push-Pull DC-DC converter. My focus is on simulation practice rather than deep phys...

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J2534 PassThru Hardware from LPC to a Lower‑Cost MCU + New PCB

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

HL-40415973

Multi-Layer KiCad PCB Design

I need a KiCad specialist to turn my draft concept into a production-ready multi-layer board for an industrial controller. The board must safely handle several...

HL-40415981

Build a USB Power Monitoring Device (ESP32 + INA219 + OLED)

Title: Build a USB Power Monitoring Device (ESP32 + INA219 + OLED) Description: I am looking for an embedded systems developer to build a working prototype of a...

HL-40415574

Finalize ESP32-S3 Data Acquisition PCB

The core of the board is already in place: I have routed the ESP32-S3, its power stages, and footprints for a set of temperature sensors along with the basic pe...

HL-40415238

Firmware Development for Transformer‑Based Li‑ion Home UPS (Renesas RL78 or STM32G081)

Project Title: Firmware Development for Transformer‑Based Li‑ion UPS (Renesas RL78 or STM32G081) Description: We are developing a transformer‑based inbuilt Li‑i...

HL-40414328

DC-AC Converter for Renewables

I’m building out a renewable-energy platform and need a purpose-built DC to AC conversion stage. The goal is a reliable, high-efficiency inverter that can take...

HL-40414276

Design 48V to 300V DC/DC Converter

I need a 48V to 300V, 3000W buck-boost converter for industrial equipment. Requirements: - Efficiency: Above 95% - Size: Moderate, balancing size and efficiency...

HL-40414005

CMOS Hybrid Adder Architecture Analysis

This project centres on a high-speed hybrid full adder implemented in pure CMOS. The heart of the work is architectural: I need to see how different logic style...

HL-40413505

FPGA Power Conversion Consultation

I’m working on an FPGA-based power-electronics design that performs direct AC-to-AC conversion, and I’d like an experienced set of eyes on the project. Rather t...

HL-40413035

Quick Small PCB Design by Engineer

Looking for an electronic engineer that is very good with PCB to build a signal amplifier board for me. I already have the circuit. I just need them to create t...

HL-40412449

RFID Dispenser Prototype Upgrade

I’ve built an early-stage food cart concept and now need the automatic dustbin I’m using as a mock dispenser to respond to an RFID wristband instead of its fact...

HL-40412098

J2534 PassThru Hardware from LPC to a Lower‑Cost MCU + New PCB (Same Released Windows Tooling)

Analyze the existing LPC-based device firmware/behavior (authorized reverse engineering / porting) and rebuild it on a lower-cost MCU (ESP/STM class) with a new...

HL-40410992

Compact BLDC Power Board Design

I need a skilled BLDC control engineer to design a single, space-saving PCB that combines four key blocks: • A BLDC motor controller focused on Power Delivery w...

HL-40409392

Op-Amp Temperature Sensing Circuit Design

I would like to explain my project . The project is about designing a temperature sensing circuit using an operational amplifier (Op-Amp) without using any micr...

HL-40409173

Discrete Logic Safety Interlock Board — PCB Design & Prototype

We are seeking an experienced US-based electronics designer to design, fabricate, and test a prototype PCB for a safety-critical interlock device. This is a wel...

HL-40409283

SMART BMI ESP32-WROOM-32E

Have a working circuit diagram for a device based on the ESP32-WROOM-32E . The system is powered from an external supply (5V / 8V / 12V). The next step is to co...

HL-40408733

Altium 2-Layer Industrial Control PCB

I need a compact two-layer PCB laid out in Altium Designer for an industrial-control product. The schematic is ready and centres on a microcontroller that must...

HL-40408445

Real-Time B-H Loop Visualizer

I need a complete, bench-ready setup that lets me watch a ferromagnetic core trace its B-H hysteresis loop live on an oscilloscope screen. All measurements will...

HL-40407710

powerbank pcb

https://www.tztstore.com/goods/show-7804.html I want to design this pcb QC4.0 QC3.0 LED Dual USB PD Fast Charge 5A 100W Micro/Type-C USB Mobile Power Bank 18650...

HL-40407668

Finalização de PCB no Projeto Flux

Preciso finalizar o PCB do meu projeto no Flux. A base já está feita e o que preciso agora é: Revisar o esquema existente Confirme que as conexões do circuito e...

HL-40407172

Esp32 based communication

Develop an ESP32-based wireless communication system comprising one transmitter (sender) unit and five receiver units. The sender will include a single push-but...

HL-40407179

High-Efficiency Video Wall SMPS Engineer Needed

Looking for Expert: High Power SMPS Design (5V 60A) for Video Wall Application We are developing a professional Video Wall Power Solution and are looking for an...

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Reengenharia Completa de Placa Eletrônica

Tenho uma placa eletrônica legada que precisa ser totalmente atualizada e documentada. O trabalho está dividido em cinco etapas, cada uma com prazo firme: 1) At...

HL-40406418

V-Score PCB Panelization

I'm seeking an experienced PCB panelization expert to help reduce manufacturing costs. The preferred method for panelization is V-score and will be done in Eagl...

HL-40406159

Computer Engineer (Electronics & Embedded Systems)

We are looking for a highly skilled Computer Engineer with strong expertise in electronic design and embedded systems to join our growing team. This role involv...

HL-40405301

ESP32-S3/04 BTS7960D - EASYEDA PRO - ROTARY INCREMENTAL ENCODERS PCB PROJECT

ESP32-S3 will be the brains of my PCB for controlling two car wiper motors. Board will have inputs for two incremental rotary encoders and an SPi output for com...

HL-40405107

Optimize 3A Charging PCB Layout

I already have a fully verified schematic for a 52 mm × 38 mm vehicle-charging circuit and a proven reference board that hits the desired 3 A+ current. The only...

HL-40405129

Mixed-Signal KiCad Medical PCB

I’m developing a small (35x45mm) (10 IC) 6-layer mixed-signal board that will sit inside a handheld medical device, and I already have a first-pass KiCad schema...

HL-40404882

Fix Electrical Fault on Wood Machine

My production-floor woodworking machine is due for its scheduled maintenance and, at the same time, has developed an electrical fault that keeps tripping the sa...