Circuit Design Jobs

Project Description I need a professional hardware/electronics designer to create a complete ESP32-S3-based pcb. The design will feature: - ESP32-S3 module (placed on edge side of the PCB) with USB-C for programming. - 18 high-resolution analog inputs for NTC 10K/20K/100K sensors with shared COM pins. - 8 solid-state relay (SSR) outputs for controlling contactor signals, with shared COM pins. - One high-reliability 0-10V analog output. - Ethernet port with the W5500 IC and RJ45 connector at the bottom edge. - Integration of an external RTC module (DS3231) with battery backup for accurate timekeeping. - Power regulation, protection circuits, and optimized PCB design. - Milled slits for isolating I2C sensors.

I need a seasoned PCB designer to create a personal navigation device using an ESP32-S3. The low-power design will encompass various components such as a GPS, sensors buttons, and connectors. Key Features: - Incorporate ESP32 WROOM S3 and u-blox MAX-M10S GPS with chip antenna - Integrate a Speaker and 5 Pushbuttons - Include a Micro SD Card Slot and USB-C Connector - Have a Barometric Sensor, Accelerometer/Gyro, and Ambient Light Sensor - Implement a LoRA Radio and 4 connectors for battery & peripherals - Support LiPo charging and power management Board Dimensions: Approximately 44mm x 72mm Deliverables: - Altium Designer Schematic - Detailed Parts List (BOM) with supplier information - Altium Designer PCB Layout - Complete Fabrication data (Geber files etc) Key Requireme...

I'm looking for an experienced circuit designer to create a circuit for a Switching Mode Power Supply (SMPS) aimed at consumer electronics. Key Project Details: - The circuit is specifically for a 24V SMPS. - Power Rating 48 W , 2A - Use the IC DP2281 - Experience in designing circuits for consumer electronics is crucial. - Knowledge and experience working with SMPS circuits is a must. Your expertise in circuit design will be pivotal in ensuring the successful creation of this circuit. I look forward to your bids and hope to find a freelancer who can meet these requirements.

I'm looking for an experienced electronic engineer to modernize the circuit board of a Candlepin Bowling Pinsetter. The primary goal is to update the board and components to a smaller form factor while enhancing the overall efficiency of the system. Key Requirements: - Update the circuit board and components to a smaller, more compact form factor. - Improve the overall efficiency of the circuit board. Ideal Skills: - Expertise in circuit board design and modification. - Experience with consumer electronics. - Strong understanding of efficiency optimization techniques. Prior experience working with industrial control systems, particularly in consumer electronics like a bowling pinsetter, would be highly beneficial. A successful project will lead to a faster, more efficient pin sett...

I need a Logisim expert to design a sequential circuit for me. The circuit should generate the digits in my student ID. Requirements: - Utilize JK Flip-Flops and Counters. - Employ only JK or D-flip-flop and basic gates (AND, OR, XOR, NAND, NOR, XNOR). - The circuit should be able to replicate the digits of my student ID. Ideal skills: - Proficient in using Logisim. - Strong understanding of sequential circuit design. - Able to work with JK Flip-Flops and Counters. - Familiar with basic logic gates. I attached milestone 2 my previous project are going to continue working on it to do milestone 3 This project is primarily for educational purposes, helping me understand the practical application of circuit design. A freelancer with a background in electronics or computer engineering would...

I'm in need of an expert who can design a schematic for an electronic circuit. This is for a consumer electronics device and will include key features like sensor integration and DC motor control. Ideal skills and experience for the job: - Proficiency in electronic circuit design - Experience working with consumer electronics - Knowledge of DC motor control systems - Expertise in sensor integration - Familiarity with schematic design software Please provide examples of similar projects you've completed in your proposal.

I need an expert electronics engineer to design a WiFi module for me. Key Requirements: 1. The module must support Wi-Fi standards 802.11b, 802.11g, and 802.11n. 2. It should use UART or SPI as the host interface to enable communication with the host computer. 3. Use a SoC with integrated Wi-Fi and employ Altium Designer to create the electronic schematic diagram. 4. The software architecture should encompass a TCP/IP stack and a UART driver. 5. A detailed explanation of the operating mechanism of the designed system is required. Ideal Candidate: - Proficient in using Altium Designer. - Extensive experience in WiFi module and SoC design. - Strong understanding of Wi-Fi standards. - Capable of designing a comprehensive software architecture. Please provide your proposals if you meet the...

I need a PCB design expert to help me finalize my PCB design for production. The circuit sketches, dimensions, and component lists have already been prepared. Key Requirements: - Adherence to Standard Design Rules: The PCB should follow standard design rules without any high-density or high-frequency considerations. - Single Layer Design: This PCB will be a single layer. - Manual Routing: The PCB design requires manual routing, not auto-routing or a mix of both. Deliverables: - A .Pcb file that is ready for production Ideal Skills: - Proficiency in PCB design software - Experience with manual routing - Strong understanding of standard design rules

I need an experienced PCB designer to route an existing PCB for me in EAGLE CAD. Key Project Details: - Size: The PCB is a medium size, specifically within the range of 2x2 to 4x4 inches. - Layers: It is a double-layered PCB. - Component Density: The design will have a medium density of components. Ideal candidates are those with prior experience in PCB design and routing, particularly using EAGLE CAD. A good understanding of double-layered PCB routing and medium component density layouts is crucial. Please include examples of similar projects you've completed in your proposal.

I'm looking for a designer who can create a two-way siren system for industrial use. The system must be able to communicate via radio and primarily serve the purpose of emergency alerts. Key Requirements: - 100m Range, - Ability to connect up to 30 devices - Each device has a siren and light - Battery (12v) powered - See on their video you can set the radio number for pairing - Disconnection warning The system will need to be robust enough for an industrial setting and capable of broadcasting emergency alerts. The power source for the sirens will be battery-powered, so considerations should be made for energy efficiency and battery life.

I need help integrating an AI Coral with a Raspberry Pi Camera Module 3 Noir to a Raspberry Pi 5. The system should be able to detect both static and moving obstacles in various environments, for the primary purpose of enabling autonomous navigation. Ideal candidate should have: - Proficiency in working with AI Coral and Raspberry Pi - Experience with camera modules, specifically the Raspberry Pi Camera Module 3 Noir - Knowledge in developing systems for obstacle detection - Skills in programming for autonomous navigation - Capability to design for both indoor and outdoor use The project involves: - Integrating the hardware components - Programming the system for obstacle detection - Ensuring the system is capable of autonomous navigation - Testing in both indoor and outdoor environment...

I'm looking for an expert in HDI grade PCB design for a compact 23mm x 11mm PCB. This design is intended for a consumer electronics device. Key Requirements: - The PCB needs to accommodate various components: Sensors, LEDs, FPGA, and Buffer memory. - Sequential illumination - The design should be suitable for indoor use only. Ideal Skills: - Proficiency in PCB design software. - Experience in designing PCBs for consumer electronics. - Familiarity with the integration of sensors, FPGAs, and buffer memory on PCBs. - Knowledge of HDI grade PCB design. Please provide relevant samples of your past work.

I'm looking for an expert in electrical engineering to design a circuit for a small wind turbine that will power a submersible fountain water pump. The maximum power output of my wind turbine is less than 20 watts. Key Tasks: - Design a circuit that can efficiently harness the wind turbine's power to operate a submersible pump. - Integrate an automatic on/off switch for the fountain water pump into the circuit. Ideal Skills: - Proficiency in circuit design, particularly for renewable energy sources. - Experience working with small wind turbines and submersible pumps. - Ability to design and integrate control systems into electrical circuits. Please ensure you are able to deliver a robust and reliable design, as this will be used to power a fountain in my garden.

I'm looking for a specialized, miniature electronic video system designed for real-time microsurgical live streaming. This system should be capable of delivering high-definition video quality with minimal latency. Key Requirements: - The primary purpose of this system is to facilitate real-time microsurgical live streaming. - The system must deliver high-definition video quality. - It should be capable of low-latency streaming, ensuring a smooth viewing experience. Ideal Skills and Experience: - Expertise in designing and developing miniature electronic video systems. - Proficiency in high-definition video streaming technologies. - Experience with systems designed for real-time, live-streaming applications.

We are seeking a skilled freelancer to help design the schematic PCB circuit diagram and develop the firmware for a Smart Tree Pot device that integrates multiple sensors and displays 70+ expressions on a screen. The device will monitor various environmental factors such as moisture, temperature, light and respond with visual expressions on a display based on the sensor data. The goal of this project is to create a system where the tree pot responds interactively to its environment with a range of dynamic expressions, making the device not just functional but also visually engaging. Project Requirements: 1. PCB Circuit Design: o Design the schematic circuit diagram for the Smart Tree Pot. o Integrate sensors for soil moisture, temperature, light to monitor plant conditions. o Design an...

Hello, I'm looking for an electronic engineer with power electronics experience to design an external circuit that can be connected to an existing Buck power supply. The goal is to inject a variable current (0 to 200 mA) controlled by PWM into the switching node to adjust the average current supplied to an LED array. Project Details: (PLEASE CHECK THE ATTACHED IMAGES) Current System: Type of Supply: Buck Converter (SMPS) AC/DC Output: Constant current of 200 mA at 135V for an LED array. Access: Only to the output connector where the LEDs are connected; no access to the internal components of the power supply. Design Objective: Variable Current Injection: Create a circuit that can inject between 0 and 200 mA into the switching node using a PWM signal. Average Current Regulation: ...

Seeking a candidate to: 1. Develop CMLD files from scratch to model large data center load behavior using the latest technology assumptions in Texas. 2. QC third-party CMLD inputs for a dynamic load model. **Requirements:** - Must hold a PSS/E license (none will be provided). -Experience in power transmission systems is required. - Experience modeling hyperscale data center loads preferred. - ERCOT region experience is a plus.

I am seeking a highly skilled developer with extensive hardware and software experience in managing 230V AC and DC current power switching. The project involves controlling heating elements through an Arduino ESP32 platform. Key Project Features: - Control: The system will primarily control heating elements. - Efficiency: A major focus will be on energy efficiency, so expertise in developing energy-efficient systems is crucial. - Remote Management: The system is to be controlled via a web interface, so experience in web-based control systems is a plus. Ideal Skills: - Proficiency in hardware and software development, particularly in power switching. - Extensive experience with Arduino ESP32. - Strong background in developing energy-efficient systems. - Previous work with web interface c...

I'm looking for an embedded system expert to design a hardware for industrial automation. Key Requirements: - Design an embedded system - Incorporate a microcontroller - Optimize for industrial automation applications Ideal Skills: - PCB design - Embedded system design - Microcontroller programming - Understanding of industrial automation needs - Experience in designing for durability and reliability

I'm in need of a seasoned professional who can assist me in procuring low-cost multi-layer printed circuit boards based on an existing Gerber file and an Excel file bill of materials. Phase I: - Obtain a cost estimate for the PCBs and the components based on the provided files. Phase II: - Evaluate the delivered PCBs. - Proceed with the assembly of the components. My technician will handle the testing and reviewing of the assembled boards. Ideal Skills: - PCB sourcing - Cost estimation - Assembly - Multi-layer PCB expertise - Supplier negotiation

I am looking for an electronic engineer who can work in our team. We have a project to design a switch panel using STM32. I will share the PCB layout and switch links in a quick chat. I want to design the PCB using EasyEDA because I will manufacture PCB in China. Please attach your portfolio if you have any experience in this field. I am looking for a individual engineer who can join our team. Thank you

I'm seeking a skilled engineer with extensive experience in designing digital circuits specifically for industrial equipment. The circuit is intended for control system applications, so understanding of control systems is crucial. Ideal Skills & Experience: - Proficient in designing digital circuits - Experience with industrial equipment - Strong understanding of control systems - Able to deliver high-quality, reliable designs

I'm looking for an expert in PCB and hardware design to help me create a development board. The PCB will need to integrate a Nordic nRF microcontroller and various sensors. Ideal candidate should have: - Extensive experience in PCB design and hardware prototyping. - Proficiency with integrating microcontrollers and sensors onto PCB. - Familiarity with Nordic nRF microcontroller. - Ability to design for robust, consumer-grade applications. - Familiarity with Analog Devices Sensors.

I'm looking for a skilled engineer to PCB design an automatic water pump controller that can detect both ground and overhead water levels. This system should also monitor current and voltage, and control reserve water. Key Features: - Compatibility with single or three-phase pumps and power starters, up to 30amp switching. - Utilization of a microcontroller, specifically the ESP32 WROOM. - Incorporation of an OLED display, with a manual toggle switch. - Implementation of water level detection via the water conductivity method. Ideal Skills and Experience: - Proficient in microcontroller programming, particularly with ESP32. - Previous experience designing water pump controllers. - Understanding of water conductivity level detection. - It is capable of working with OLED displays and ...

Project Requirement: Line Recorder with Bluetooth Objective: Develop a compact Line Recorder device with Bluetooth connectivity that connects to a mobile app for controlling and managing call recordings. Key Features 1. 3.5mm Audio Connectivity: * Input Port (IN): Connects to the phone via a 3.5mm TRRS cable (e.g., Type-C to 3.5mm adapter). * Output Port (OUT): Connects to headphones with a microphone. * Ensure passthrough audio for both the microphone and headphone. 2. Bluetooth App Integration: * Establish a Bluetooth connection with a mobile app. * Mobile app controls: * Start/Stop Recording: Signal the device to begin or stop recording. * Download Recordings: Retrieve the recorded audio file via Bluetooth. * Clear Storage: Automatically del...

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.