Fix SEW-Omron Bidirectional PLC Communication
Our SEW DHR21B card used to exchange data in both directions with an Omron CJ2M-CPU33, but since the drive was reset to factory settings the PLC can only read;...
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ESP32 Auto TPMS Gauge Development
ESP32-Based 52mm TPMS Gauge (433 MHz Sensors + Custom Display UI) Description: I need a small embedded systems developer to build a standalone automotive TPMS g...
Read moreKiCad Designer for School Access Control System
Hi, I'm a student working on an access control system for our school's IT labs. We already have a working prototype and the firmware/software side handled — wha...
Read moreHigh-Voltage 2kV PCB Design with ADC/DAC
High voltage till 2kV with transformer and signal conditioning (ADC,DAC) on the same PCB with around 50 components, with 4 layer board
Read moreEmbedded Systems Engineer Required for BLE Sensor Integration & Firmware Development
We are looking for an experienced Embedded Systems Engineer to assist with the development of a proof-of-concept prototype involving motion sensors and Bluetoot...
Read morePortable Rechargeable Lighter Circuit Design
I want a complete specialized electronic circuit that powers a reusable lighter. The goal is to replicate—or, if necessary, freshly create—the entire circuit so...
Read moreFirewire Capture Device — Embedded Engineer Needed
Looking for an embedded systems engineer to design a small, low-cost, battery-powered handheld Linux recording device, inspired by: https://github.com/computere...
Read moreMedium Power Management PCB Prototype
Part-Time PCB Designer & Prototype Fabricator — Low-Voltage Relay Control Boards (Ongoing) PCB Design · PCB Layout · Electronics · Circuit Design · KiCad · Alti...
Read moreAndroid LE Audio (LC3) Debugging Specialist
# Freelance Request – Bluetooth LE Audio (LC3) Expert Needed I am looking for an experienced Android Bluetooth engineer with **proven hands-on experience** with...
Read moreIndian Market Trading Alert Bot
I need a fully-automated trading-alert bot that plugs into any of the leading Indian broker APIs—whether you prefer Zerodha’s Kite Connect, Upstox, or Angel Bro...
Read moreIndustrial Equipment PCB Design Needed
I have a complete set of schematic diagrams in digital form (PDF/images) for an industrial-grade board and now need that information translated into a manufactu...
Read moreOutdoor Ultrasonic Vehicle Detection
I need assistance in developing electronic for an ultrasonic sensor system for indoor vehicle detection. This system will be used in an indoor environment to de...
Read moreOption Data Integration & Alerts
I need a developer who can hook directly into my chosen data-provider API (not a broker feed) to pull three specific metrics in real time: Call OI, Put OI and M...
Read morePersonal Safety Pendant Device
I'm seeking a skilled developer to create a pendant-type safety surveillance device for personal safety. The device should primarily feature: - GPS Tracking: To...
Read more1-In 3-Out Mixer Design
I need an audio-grade, one-input / three-output distribution mixer engineered from the ground up for live performance rigs. The unit must keep each of the three...
Read moreSimple Schematic + PCB Layout for a Dual-SIM 4G LTE WiFi Hotspot (Quectel SC200E/SC20, RF experience required)
I am developing a portable battery-powered WiFi hotspot (MiFi-style similar) based on a Quectel smart LTE module. The module integrates the application processo...
Read moreEmbedded Systems and AI Consultant Needed for Intelligent Product Development
We are seeking an experienced consultant to support the development of intelligent electronic products that combine embedded systems and AI technologies. The id...
Read moreFinish KiCad Driver PCB
As Coordinator. First, the honest boundary: this is an **estimate**, not measured from the live `.kicad_pcb`/`.kicad_sch` files (I can't reach D:\ from here). I...
Read moreBuild a Manufacturing Quotation Website Similar to Cad & Cart with Custom UI Design
I need a website very similar to Cad & Cart in terms of functionality and workflow. The website should allow customers to: * Upload CAD files (STEP, STL, IGES,...
Read moreElectronics Hardware Consulting Support
I’m looking for a seasoned electronics engineer who can serve as a sounding board for a brand-new hardware device we have in the works. You’ll dive into our cur...
Read morePCB Design for ESP32 and Sensors
I'm seeking a PCB designer to create a two-layer, 80x60mm PCB using KiCad. Requirements: - 12V input with LM2596 5V buck converter - ESP32 DevKit mounted on fem...
Read moreZynq FPGA Embedded Control
I am working on a Zynq-based project and need the programmable logic side coded to handle the embedded system control tasks that my ARM cores alone cannot meet....
Read moreRemote VSAT Installation & Support
My site sits in a hard-to-reach location and relies entirely on a single VSAT link. I need a seasoned engineer who can travel to the remote area, complete a cle...
Read morePCB with 4 channels mosfet power switches
Create a PCB with mosfet power switches for 4 lines (both positive and negative wires), controled by PWM signal (high is on). And current control circuit, to co...
Read moreSwitch Sensor PCB Design + full build
Please note this is not just a PCB design task, I need a complete implemented solution I need a compact, ultra-low-power PCB that can read a group of simple slo...
Read moreAutomotive ESP32-S3 PCB Design
PCB Designer Needed – Ultra-Compact Automotive/Motorcycle BLE Control Board I'm seeking an experienced PCB designer to develop an ultra-compact, production-read...
Read moreSTM32 IoT Data Logger Firmware
I need production-ready firmware for a battery-powered 4 G IoT data logger built around an STM32 MCU and a SIM7600 modem. The device accepts both 4–20 mA analog...
Read moreMATLAB-Simulink Electrical Power Mitigation Project
I need help with a MATLAB/Simulink electrical power system project related to voltage sag mitigation in a distribution network using UPFC. The main objective is...
Read moreBus Toilet PCB Design
I need a PCB designed for a bus toilet system. The PCB should control the following functions: - Lighting - Flush system - Ventilation - LED lights for error in...
Read more±3 V 80 kHz Line Driver
I have a Teensy 4.1 producing a 0–3.3 V, 80 kHz square wave that must be pushed onto a power line as a clean ±3 V logic-level signal. The link sits inside an in...
Read moreModul WiFi 500m UDP
Am nevoie de un design complet pentru un modul WiFi capabil să trimită date UDP pe o distanță de aproximativ 500 m în câmp deschis, în special deasupra apei. Nu...
Read moreCustom RISC-V IC Development
I need a custom RISC-V integrated circuit designed specifically for embedded systems with essential inbuilt security features. Key Requirements: - Designed for...
Read moreSTM32H743 Meter Schematic Update
I already have a complete schematic for a multi-function meter built around the STM32H743BIT6. Before I move to PCB layout I need a fresh set of eyes to refine...
Read moreThree-Axis Joystick Schematic
I need a schematic completed in EasyEDA for a small PCB that will trigger three illuminated or non illuminated switches. Each switch is to plug in to a JST plug...
Read moreProvisional Patent Application -- 2
We are an early-stage hardware startup with a working V1 prototype of a wrist-worn consumer wellness device. The device combines a biosensor input with an embed...
Read moreOpenClaw Agentic Automation Mobile Prototype
Skills tags: AI Automation, API Integration, Agentic AI, Android Development, Linux Description, paste exactly Problem: Standard mobile apps lack the capabili...
Read moreMATLAB/Simulink Control Analysis Assignment
I am preparing a control-engineering assignment that requires frequency-domain analysis and time-domain verification in MATLAB and Simulink. The core of the wor...
Read moreBAYANI: Educational Children's Audio Box Firmware
# ESP32 NFC Audio Player Firmware Development (Children's Audio Box) ## Project Overview We are developing BAYANI, a screen-free educational audio box for child...
Read more12V Motor/Heater PCB Design and gerber file, BOM & Place and pin file
This document serves as the master engineering reference for the Automated Shirodhara Control Hub. It details the precise electrical, logical, and structural wo...
Read moreDigital Circuit Designer for boat bilge alarm System
I'm seeking an experienced digital circuit designer to create an alarm system for a bilge pumping system on a boat. It’s a one off project.This project is for m...
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