Circuit Design projects — HireLancer archive

ID / Date Listing

esp32 wroom PSRAM interface

i want to interface PSRAM with esp32-wroom , my circuit is working fine with esp32S but same circuit not working with esp32-wroom . clk pin is GPIO17 and CS pin...

HL-37284639

power electronics Design Engineer

I am looking for an experienced power electronics design engineer to assist me with designing an inverter. Specific project: Inverter Designer Requirements: - I...

HL-37284682

electrical engineer

We've built a mineral bath in our business and Shrewsbury Borough have asked for an electrical engineer's certification to go along with the Intertek independen...

HL-37283814

Design of firewood log docking saw and splitting processor

I am looking for a skilled freelancer who can design a firewood log docking saw and splitting processor. The project requires expertise in mechanical engineerin...

HL-37283613

LED PCB board design two to four inches for high intensity infrared 7.4 volt to run 8 to 12 high intensity infrared LEDs and be able to adjust number of lamps or be able dim intiintensityby voltage

I am looking for a skilled PCB board designer to create a high intensity infrared LED PCB board. The board should have the following specifications: Size: Betwe...

HL-37283403

PCB LED circuit design

Need a PCB design for led circuit 7.4 volts 2 to 4 in

HL-37282418

Tune an etched pcb BLE antenna

Having issues with your etched PCB BLE antenna? Worry no more, as I am offering my expertise to tune your existing antenna to make sure it runs smoothly and eff...

HL-37281335

PCB schematic and PCB layout

I am looking for a freelancer who can help me with a PCB schematic and layout. The PCB design is simple. (23 Components on the bill of materials) I have attache...

HL-37275955

pcb rework

I'm in need of a PCB rework specialist to address a component replacement issue. I already have the required components available and am now seeking someone wit...

HL-37274539

single phase 240 to splitphase 120/240v 5000watts constant without a transformer. -- 2

I am looking for a skilled professional who can design and build a single phase system that can convert 240V to split-phase 120/240V without the use of a transf...

HL-37274237

single phase 240 to splitphase 120/240v 5000watts constant without a transformer.

I am looking for a skilled professional who can design and build a single phase system that can convert 240V to split-phase 120/240V without the use of a transf...

HL-37273801

Pcb design

I am looking to hire a Freelancer to design a PCB for me. The desired complexity level of the design is simple. I have a specific list of components that I woul...

HL-37273055

Circuit for architecture

I am looking for a freelancer who can design a logicwork circuit for a specific architectural project. Requirements: - Experience in designing logicwork circuit...

HL-37272438

Design a custom power delivery system

I need your help to design a custom power delivery system PCB with the following features. 1. Take input from 11 to 18V 2. All Output should remain constant at...

HL-37265761

Square Wave to Sine Wave (Power) Converter

I am looking for a freelancer who can develop a Square Wave to Sine Wave (Power) Converter for my project. Input Voltage: 120V (rms) Square wave Frequency: 500...

HL-37261746

pcb designer

Hi, I need a PCB designer ideally with experience with https://easyeda.com/ and that had designed and manufactured boards already from china. I need an adaptati...

HL-37260217

PCB Schematic design

I am looking for a skilled PCB designer to create a schematic design for my project. The complexity of the design is simple. Specific requirements for the PCB s...

HL-37259694

PCB Designing for Class-D Audio Amplifier

I am looking for a PCB designer to create a circuit board for a Class-D audio amplifier. The project requires the following: Power Output: - The audio amplifier...

HL-37259228

Updating an existing PCB board with RENESAS Chip

I am looking for a skilled freelancer who can update an existing PCB board with a RENESAS chip. The specific changes needed for the PCB board include replacing...

HL-37258352

Load frequency control for multi-area system power system with renewable energy integration

My project goal is to develop a load frequency control system for a multi-area power system with solar energy integration. The primary focus is to minimize freq...

HL-37258268

PCB Update - TeraOhm Input impedance test / simulate & improve.

I am looking for a freelancer to analyse my current schematic and PCB design. I need to verify current input impedance and if required improve the input impedan...

HL-37257333

Simple PCB design

I want a very simple DC motor controller with these features: 1- Input 9v Alkaline battery 2- 12v, 5W DC motor 3- Capability to adjust the motor speed (using PW...

HL-37256707

Clamp earth resistance meter design and developement

I am looking for a skilled individual or team to design and develop a clamp earth resistance meter. This project requires expertise in electrical engineering an...

HL-37256272

solder components on a board

I'm looking for a skilled and experienced freelancer to solder components onto my printed circuit board (PCB). I have a detailed schematic showing all component...

HL-37254424

PCB design on EasyEDA for manufacturing at JLCPBC

We need a design engineer with experience in NFC/WiFi antenna integrating PCBs to convert simple schematics that we will provide to PCBs for manufacturing at JL...

HL-37256055

Bms pcb development

My project is the development of a BMS PCB. I need a device to monitor the state of the battery. (5S cells) Without control function. If deviations are detected...

HL-37252816

An existing simple mic analog circuit need to Add Op-Amp to increase voltage (x10) then check it on KiCad or TINA. After that update BOM and create Gerber files.

I am looking for an experienced engineer to assist me with a project involving a simple analog mic circuit. I need to add an Op-Amp to increase the voltage by a...

HL-37251868