Ebike Throttle Limiter Circuit Check
I need an ebike throttle limiter that sits between the ebike throttle ( running 5v red, black (gnd) and white control wire and its controller : (DO NOT CUT thes...
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PCB designer for a simple LED board
I'm looking for somebody who can fix my pcb, all it has are leds on top
Read moreBluetooth HAM Radio Audio Bridge
I want to build a compact, two-way Bluetooth audio interface for a HAM radio. The core goal is a 2-way bridge between the radio and a realtime camera running on...
Read moreKiCad Layout Engineer: PCB Revisions for ESP32-based Board
I already have a working ESP32 design in KiCad and need it brought to its final, production-ready form for a commercial product that must clear CE. The job cent...
Read moreZynq RF Board Size Reduction
I am looking for an experienced RF hardware designer to consolidate and miniaturize an existing RF system based on a MYIR Zynq-7020 board. The current setup inc...
Read moreEmbedded Hardware & Firmware Support
I’m building a mini ventilator—an embedded medical device combining mechanical and electrical subsystems—and I’m looking for a dependable partner who can transl...
Read moreBattery Management System Circuit
I need an electronics specialist based in Mumbai who can take a lithium-ion battery management system from concept to a tested prototype. You will work with me...
Read more6-Page High-Res PDF
I have a finished KiCad PCB layout and now need a clean, print-ready PDF compiled from it. The final document must contain six A4 landscape pages arranged in th...
Read morePIC PCB & Firmware Designer
Hello , I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts...
Read moreMiniature 433 MHz PCB Layout
I already have a complete analog FM-transmitter schematic for 433 MHz (BFR93W transistor, electret mic front end, bias and tank network). What I need now is a c...
Read morePIC PCB & Firmware Design
I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts: • PCB...
Read moreESP32 Traffic Light PCB Layout
I need an experienced electronics/PCB engineer to design a reliable, 24/7-operating traffic light controller PCB. This is a safety-critical system (not a hobby...
Read moreSky130 CMOS Inverter Full Flow
Abstract: Manufacturing-Ready 130nm CMOS Inverter Design The objective of this project is to design, verify, and prepare a standard CMOS inverter for fabricatio...
Read moreRigid-Flex PCB Design for Wearable Tech
igid-Flex PCB Design for Smart Ring Wearable I’m developing a compact smart ring device and need an experienced PCB engineer to design a rigid-flex PCB. The des...
Read moreRaspberry Pi Zero 2 W Camera System — Power Board + Recording Software (Budget max $600)
I’m building a small sports POV camera system (VisionCam V1) using a Raspberry Pi Zero 2 W + Raspberry Pi Camera Module 3 Wide (IMX708). I need (A) a simple pow...
Read moreESP32 Traffic Light Controller PCB (24/7, Relays, Watchdog, Failsafe)
I need an experienced electronics/PCB engineer to design a reliable, 24/7-operating traffic light controller PCB. This is a safety-critical system (not a hobby...
Read moreSmart Beehive Monitoring System Design
I am looking for an experienced electronics engineer/PCB designer to create a custom carrier board (or fully integrated PCB) for a smart beekeeping monitoring s...
Read moreRaspberry Pi Compute Module 5 (CM5) Custom Carrier Board + M.2 AI Accelerator Integration
I’m building a CM5-based camera system and need an experienced hardware engineer to design a custom CM5 carrier board that supports an M.2 2230 A+E (PCIe) AI ac...
Read more165 V DC-DC Converter Design
I need an engineer to take my concept for a high-voltage DC-DC converter and translate it into a complete, build-ready design that slots straight into a renewab...
Read moreESP32 TFT with embedded SD MicroPython Integration
I have an ESP32 driving a 2.8-inch SPI ILI9341 TFT that contains an on-board SD slot. With the standard lcd and sdcard MicroPython drivers the display runs perf...
Read moreDifferential Op-Amp Implementation Guide
Peace be upon you. I want someone to explain to me this operational amplifier circuit, which is the op-amp 741. I want a person who can explain it to me fully a...
Read moreExperienced Technical Writer for STEM Bluetooth Speaker Kit Documentation (Electronics Focus) -- 2
We are seeking an experienced technical writer with a solid background in electronics to update and improve the instructional documentation for our DIY Bluetoot...
Read moreAdaptar PELTOR X2 con ANC (Cancelación de Ruido Activa)
Necesito integrar cancelación de ruido activa (ANC) en mis protectores auditivos 3M PELTOR X2, pensados para un entorno industrial. El objetivo es que el nivel...
Read moreGas Project Single-Line Diagram
I need a clear and professionally drafted electrical single-line diagram based on the electrical load list along with safety features that shows how power will...
Read moreFusion PCB & Case Design
For my current university project I have to build a compact PCB whose only job is to collect data from several temperature sensors and route those readings to t...
Read moremicro:bit Ventilator & Licht Anleitung -- 2
Ich möchte mit dem „BBC micro:bit mit Kitronik Inventor’s Kit“ zwei kleine Experimente umsetzen und suche dafür eine komplette Dokumentation in Video-Form: 1. A...
Read morePCB Design for ESP32 Monitoring System
I need a PCB designed to replace our current modular setup for a monitoring system based on the ESP32. The PCB will need to incorporate the following: Essential...
Read morecreating a schematic in Kicad or Eagle for a schematic taken from a photo
I'd like to create a schematic and PCB layout that I can use to print from a photo I have. The layout is based on an ATmega and an ESP32, along with a servo con...
Read moreOptimize Mission-Critical Control Boards
I maintain a fleet of mission-critical electronic control boards that must run flawlessly around the clock. Although the hardware is operational, I want to sque...
Read moreWhole Home Functional Lighting Design
I’m updating the lighting throughout my house and need a clear, well-thought-out plan that focuses on functional use. The scope covers the living room, kitchen,...
Read moreIsolated 5V-to-12V Relay Driver
I’m putting together a small interface that lets a 5 V logic line drive a 12 V DC mechanical relay while keeping the control electronics completely isolated fro...
Read moreWearable Exoskeleton PCB Design using STM32F767ZIT6 IC
I’m building a wearable exoskeleton and need a dedicated PCB that brings all core electronics onto one compact board. The board must integrate: • Microcontrolle...
Read moreCommercial 600A DB Three-Line Design
I need a clean, professional three-line diagram for a commercial distribution board that will use a 600 A main breaker feeding two 400 A MCCB outgoing ways. The...
Read moreRescue-Dummy Gerätentwicklung
Ich habe bereits einen funktionstüchtigen Prototypen auf Basis eines ESP32-WROOM-32 aufgebaut, stoße jedoch bei der Fein- und Serienentwicklung an meine Grenz...
Read morePCB Size Reduction Without Circuit or Component Changes
I have an existing ATMS PCB design with current dimensions of 120 mm (L) × 55.55 mm (W). I am seeking an experienced PCB layout designer to reduce the overall b...
Read moreEDP to MIPI CSI Converter PCB
I need a compact, production-ready PCB that reliably converts an EDP 1.2 video stream into a MIPI CSI-2 output so I can interface an existing embedded panel wit...
Read moreRemote Control of Stepper Motors with Joystick
I need help setting up two Nema 17 stepper motors to be controlled remotely via two ESP32 boards. One board will be in the remote and the other in the receiver....
Read morePCB Review Needed
I have a nearly finished schematic and two-layer board for a small dual-battery embedded system and want a second set of expert eyes before I send it off to fab...
Read moreAnalog Circuit Troubleshooting & Report
I have an analog board on my bench that should be generating a clean output, yet the signal path is completely silent. I need a fresh set of expert eyes to pinp...
Read moreBalanced Audio PCB Layout Design
I already have the full Bill of Materials and a set of clear reference photos; what I still need is a production-ready PCB layout that ties everything together....
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