Circuit Design Jobs

Freelance Project Brief: Driver Development for MX-B10HR50-IS23 LCD Project Overview: We are seeking an experienced freelancer to develop a driver for the MX-B10HR50-IS23 LCD. The driver will manage the LCD's power supply, receive information via Bluetooth, process the input, and transmit data to the LCD. The primary function of the project is to display single colors on the LCD, not images. Key Project Details: Functionality: The driver will control the LCD to display a single color at a time, based on Bluetooth commands. Pixel synchronization is not required. Once a color is generated, the pixels will remain active until a new color command is received via Bluetooth. Upon a color change, pixels will turn off, receive the new color data, and light up again with the updated color. ...

I need assistance with Mason's rule and root locus PID design

PCB Design for Compact Health IoT Device

I'm experiencing background noise from my PDM microphone, which is connected to a codec ADC6140 during recording. I've already attempted to troubleshoot the issue by adjusting the microphone settings, but the problem persists. I need review of the PCB layout to identify the problem Key requirements: - Proficient in audio electronics troubleshooting - Experience with PDM microphones and codecs - Able to diagnose and resolve analog circuit design Please provide your approach to diagnosing and fixing this issue in your bid.

I'm in need of a skilled PCB designer to assist with a project-specific PCB design. The PCB is intended for a consumer electronics application, and it will be a double-layer layout. Key components to be included on the PCB: - Microcontrollers - Power regulators - LoRa - RTC - UART - Discrete components Ideal candidates will have a robust understanding of PCB design for consumer electronic products, proficient in double-layer PCB layouts. Experience with placing and integrating microcontrollers, power regulators, and other specified components is vital. Please also demonstrate your knowledge of working with LoRa, RTC, and UART in your proposal.

I'm seeking an expert in circuit design, PCB creation, and programming for an NXP Battery Sensor tailored for an automotive application. Key Requirements: - Full design and programming of the NXP Battery Sensor with CAN and LIN MM9Z1_638. - Implementation of only the LIN (Local Interconnect Network) interface. - Support for specific functionalities: Voltage monitoring, Temperature sensing, and Current measurement. Ideal Skills and Experience: - Extensive knowledge in automotive sensor design. - Proficient in designing circuits and PCBs. - Experienced in programming for NXP components. - Familiar with LIN interface implementation.

I'm in need of a seasoned PCB engineer who specializes in PCB design and layout for double-sided PCBs. The purpose of this PCB is for automotive applications, so it needs to adhere to industry standards for durability and performance.

I need to convert file format from Altium Designer format to EAGLE format the Altium files are for STM32F746G-DISCO PCB Design () PCB are 4 layers medium complexity with components THT and SMD both side and following dimensions The conversion should be reviewed manually (no automatic conversion) in all details and DRC applied and the final result on Fusion 360 (or Eagle) should be 100% error free including Gerber file generation and libraries

Task 1: A parameterizable ALU Task 2: A parameterizable register bank Task 3: A single-cycle processors datapath I need it by the 12/1/2025

I'm looking for an expert in electronics and design to help me create a flexible cable for my Samsung A31's rear camera. This cable will allow the camera to rotate freely around the front camera. Key Requirements: - Design a 10cm long flexible cable that can extend from the rear camera. - Ensure the design allows for potential creative uses of the cable, such as 360-degree video capture or unique photography angles. Ideal Skills: - Experience with smartphone hardware and modifications. - Proficient in schematic design and cable manufacturing. - Creative problem solver with an understanding of photography and videography needs. Please refer to the attached Samsung A31 motherboard schematic diagram for your design. I am looking to replicate the design from this reference: Ult...

I'm seeking a seasoned PCB designer to assist in creating a custom, compact PCB for an IoT project focused on sensor integration. The PCB will need to accommodate several components, including an ESP32-WROOM-32 microcontroller, SIM card module, SD card module, and RS485 transceiver. Key Requirements: - Expertise in PCB design, specifically for IoT applications. - Experience integrating multiple components onto a single PCB. - Ability to design a compact-sized PCB without compromising functionality. - Familiarity with the ESP32-WROOM-32 microcontroller and other specified modules. Ideal Skills: - Proficiency in PCB design software. - Strong understanding of sensor integration and IoT systems. - Excellent problem-solving skills to overcome design challenges. - Attention to detail to e...

I'm in need of a seasoned PCB designer to assist in crafting a compact and efficient IoT device tailored for health monitoring. The device will interface with VOC sensors (PS1 & PS4-VOC-10-MOD) and employ an ESP32 or a similar microcontroller for wireless communication, as well as executing on-device AI models. Key Requirements: - The design needs to prioritize low power consumption, making it suitable for wearable or portable use. - A primary focus of this device will be monitoring human breath, so expertise in integrating and utilizing VOC sensors is crucial. - Long battery life is of utmost importance, far more than a rechargeable battery or energy harvesting capabilities. Ideal Skills: - Extensive experience in PCB design, particularly using KiCad. - Proven track record in d...

I'm looking for a skilled PCB designer to create a design for a smart LPG meter. This device needs to have several key functionalities, including gas level monitoring, leak detection, and usage data logging. The smart LPG meter will connect via Wi-Fi and will be powered by a battery. Key Requirements: - Design a PCB that incorporates gas level monitoring, leak detection and usage data logging. - Ensure the design is suitable for a battery-powered device. - Include a Wi-Fi connectivity component in the design. Ideal Freelancer Skills: - Extensive experience in PCB design. - Knowledge of IoT device requirements. - Understanding of gas sensing technologies. - Experience with battery-operated device designs.

I'm looking for an expert in PCB design to create a 50x50mm PCB board featuring a STM32H750, 16 bit RAM, and a 24 bit RGB TFT connector. This board will be used in an industrial control application, so its design needs to support real-time processing capabilities. Key aspects of the project: - Design a compact PCB within a 50x50mm area. - Integrate a STM32H750 microcontroller, 16 bit RAM and a 24 bit RGB TFT connector. - Ensure the PCB supports real-time processing. I will provide all the necessary specifications and details for the components. The ideal candidate for this project will have a strong background in PCB design for industrial applications and is adept at designing for real-time processing.

I need an antenna designed for communication purposes. This antenna should operate effectively within the frequency range of 150MHz to 450MHz. The antenna will be utilized in both indoor and outdoor settings, so it needs to be robust, versatile and reliable under different environmental conditions. Ideal skills and experience for this project include: - Expertise in antenna design, particularly for communication - Proven experience with the specified frequency range - Ability to design for both indoor and outdoor use - Knowledge of materials and design techniques for durability and versatility - Strong problem-solving skills to address potential environmental challenges

I'm seeking a skilled PCB circuit designer based in Delhi to design a double-layer PCB for video signal transmission and separation. This PCB will primarily serve in signal processing, so experience in designing PCBs for such applications is highly valued. Key Responsibilities: - Design a double-layer PCB with a focus on video signal transmission and separation. - Ensure the PCB is optimized for signal processing. Ideal Skills: - Expertise in double-layer PCB design. - Experience in the consumer electronics industry, particularly in video signal processing. - Proficiency in using PCB design software. - Strong attention to detail and ability to work to tight deadlines. If you are a professional PCB designer with a knack for signal processing, I would love to hear from you.

I'm having trouble with my keyestudio DIY solar tracking electronic kit. I'm specifically facing an issue with the microcontroller, where I'm getting the error: "avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x67". I need an expert who can help me troubleshoot this issue. The ideal candidate should be experienced in dealing with similar kits and microcontroller issues, preferably with keyestudio products. I would appreciate a step-by-step interactive guide to understand the troubleshooting process. Skills required: - Electronics expertise - Experience with keyestudio kits - Microcontroller troubleshooting - Ability to create step-by-step interactive guides.

I'm seeking a PCB designer with experience in medical devices. The PCB will be used in an undetermined type of medical equipment, so versatility and innovation are key. The designer must be well-versed in the ISO 13485 and FDA approval standards as the PCB will need to meet these certifications. Ideal Skills and Experience: - Extensive PCB design experience, particularly for medical devices - Deep understanding and practical experience with ISO 13485 and FDA approval standards - Ability to design versatile and innovative PCBs - Excellent communication skills to discuss design concepts and constraints

I'm looking for a stopwatch timer that counts the time a circuit is open. The timer needs to have a display counter using a Seven-segment display, and a reset function. This device is intended for personal use. Ideal skills and experience for the job include: - Experience in designing and building electronic timers. - Proficiency in working with Seven-segment displays. - Understanding of circuit design and timing mechanisms.

I'm in need of a skilled professional to assist in controlling multiple I/O devices via the I2C interface in my PICO C project. The schematic capture has been completed, but might require some adjustments tied to project milestones. After this phase, I'll be handling the PCB layout and procuring the first test board. Key Responsibilities: - Adjust schematic capture as necessary - Write PICO C code for controlling sensors and actuators - Include RaspPi5 test code to verify I2C commands - Focus on critical functionalities such as control commands, error handling and I2C two-way communications Experience with I2C communication is essential, specifically with a single master and multiple slaves configuration. Proficiency in PCB design and familiarity with test procedures for I2C co...

I'm looking for an electronic circuit designer to create a circuit for a buzzer game that will be used in a visual muscular coordination and precision abilities. Key Requirements: - The circuit will need to trigger the buzzer when a twisted wire is touched by the moving ring. - The circuit should be robust enough to handle repeated use in a game setting. The circuit to buzz and an LED strip illuminate for one second every time the metal ring in the hand of the player touch the twisted wire. After three consecutive times buzz, game will be announced over by a 5 seconds continuous buzz and LED light illuminated. The power source is a 12V AC transformer. Buzzer and led light strip are 12V powered. The picture attached is just to show the game in general. Ideal Skills: - Experien...

I'm seeking an engineer or designer with experience in creating scientific measurement devices. The project involves designing an automatic measurement device with a reflective sample (like a mirror or a piece of silicon stamp) that rotates around a VCSEL. Key Responsibilities: - Design the device to measure: - The actual position of the rotating arm - The position of the VCSEL - The operating current - Develop a software interface for controlling the measurements. Ideal Skills: - Mechanical engineering or similar background - Experience in designing scientific equipment - Proficiency in software interface design - Understanding of VCSELs and related optical components This device will be primarily used for scientific research. The ability to accurately measure and control pa...

I am looking for a PCB design expert. Please reach out if you have relevant experience.

I am seeking a skilled PCB designer and RF engineer to create designs for four different types of impedance matching and attenuator PCBs, as well as a detailed article about the designs and their educational applications. The PCBs must include: - A double stub - A lumped-element matching (L-network) - A lambda/4 (only the resistive part to match with the load of 300ohms) - Attenuators (10,20 and 30dbs) All designs must be for operation at 1GHz, with a characteristic impedance (Zo) of 50 ohms, using Er FR-4 4.47 material, for a 300 ohms and 30-40j loads (one resistive and another lumped). Key requirements: - Designs should incorporate EM analysis and multilayer design (2 layers). - Use of vias at least 0.8 mm, with a height (H) of 1.6, resulting in a width (W) of 3.0mm. - Adequate spac...

I'm having an issue with my electrical meter at home. The readings have been extremely high and I'm not sure why. I need a professional to trace the wiring from the meter to identify the problem. Ideal skills and experience for the job include: - Proficient in electrical systems and wiring - Experience in troubleshooting electrical issues - Familiarity with residential electrical setups - Able to provide a thorough inspection and assessment

Looking for an Electronics Engineer We need a circuit designed to interface with an ESP32. The circuit should be capable of transmitting and receiving logic 1 and logic 0 commands via a two-wire current loop interface. It must support full-duplex communication, meaning it should also be able to receive responses. Logic Explanation: Based on the attached specifications: 1. Logic 0 ("Space"): Current: Between 0 mA (Minimum) and 2 mA (Maximum). 2. Logic 1 ("Mark"): Current: Between 42.75 mA (Minimum) and 47.25 mA (Maximum). The current loop operates at a nominal 45 mA ±5%. The voltage for the open-loop supply must be between 12V DC (Minimum) and 42V DC (Maximum). Requirements: The designed circuit must handle current regulation for transmitting the ap...

I'm seeking an expert in PCB design to create a multi-layer PCB for my electronic project. The PCB will be intended for small-scale production, so the design needs to be cost-effective yet reliable. Key Requirements: - Design for both Surface Mount Devices (SMD) and Through-Hole Components - Expertise in multi-layer PCB design - Ability to create a design suitable for small-scale production Ideal Skills: - Proficient in using PCB design software - Experience in designing multi-layer PCBs - Knowledge of SMD and Through-Hole Components - Cost-effective design strategy for small-scale production

I'm seeking an engineer to design a simple circuit for a heated probe and console. The system must not exceed a temperature of about 130 degrees F. Key Features: - The console should utilize LED indicators for its interface. - The power source for both the probe and the console is a plug-in power adapter. - The console must include a temperature adjustment control feature. Ideal Skills: - Circuit design and engineering - Experience with temperature controlled systems - Proficiency in designing LED based interfaces

I am seeking a highly experienced circuit design engineer with expertise in digital and analog electronics, proficient in using Eagle for PCB design. The ideal candidate will have a strong background in signal conditioning, low-noise circuit design, and power management for compact, low-power applications. Familiarity with integrating multiple sensors, including PPG, glucose, HRV, and electrolytes, into electronic systems is a significant advantage. The role requires exceptional problem-solving skills, attention to detail, and the ability to deliver efficient, production-ready designs, including schematics, PCB layouts, and prototypes. If you excel in creating innovative circuit solutions and thrive in challenging projects, I would love to hear from you.

I need design & simulations for a 2wire & 3wire current loop transmitter using XTR115 . the sensor input is 0 - 24V ouput should be 4-20mA Key Requirements: Simulations : - I need circuit & simulation of the design in Altium or LTspice I am looking for someone who can complete this project ASAP, given the urgency. Please only apply if you have relevant experience and can deliver high-quality work quickly.

I'm in need of a professional electrical contractor for a new industrial installation. The project involves: - Wiring and cabling: Designing and implementing an effective electrical wiring and cabling system for a new industrial facility. - Maintenance and repair: Ongoing support to ensure the system remains functional and safe over time. Skills and experience needed for the job: - Proven expertise in industrial electrical construction - Strong background in wiring and cabling - Maintenance and repair skills - Knowledge of safety regulations and standards in industrial settings.

I'm looking for a tally counter system for each employee on the assembly line. The system should allow employees to count production by pressing a pedal and should transmit the tally data to a real-time dashboard accessible to the manager via Bluetooth or wired connection. Every time the employee finishes a task, they would press the pedal and it would log complete task with a timestamp. We would also like to be able to group and count their production level for each "run". A run is about every 16-18 Minutes. Key Requirements: - Tally counter for each employee with timestamp. - Pedal activation for counting production - Real-time dashboard for the manager - Dashboard for data transmission Ideal Skills: - Hardware assembly and configuration - Software development for dashb...

I'm looking for an experienced engineer with a strong background in industrial hydraulics to assist with a project focused on fluid control systems. Your expertise will be pivotal in designing, optimizing, and troubleshooting the hydraulic system. Ideal skills and experience: - Extensive knowledge and hands-on experience with industrial hydraulics - Proficiency in designing hydraulic systems for fluid control - Strong problem-solving skills - Excellent communication abilities for clear project updates and discussions.