Phase 1 (schematics only) - Industrial Embedded Product Redesign (EasyEDA)
Publicada el 2026-07-28
Descripción de la oferta
Schematic Revision & PCB Design for Industrial Embedded Product (EasyEDA) I am looking for an experienced hardware design engineer with proven expertise in industrial electronics, particularly products involving mixed-signal design, digital and analog isolation, and isolated power supplies. This project is for an industrial product. The schematic has already been completed in EasyEDA. I require modifications to the existing design before proceeding to PCB layout. Phase 1 – Schematic Revision The selected person will: * Review the existing EasyEDA schematic. * Replace selected components with alternate components (including footprint changes). * Add a new LCD module with a 7-pin connector (SPI/I²C interface). * Update symbols, footprints, and libraries as required. * Verify all power, signal, and communication connections after the modifications. * Review the design and identify optional circuits/components that should not be populated on the PCB (DNP). * Ensure the schematic is ready for PCB layout. Phase 2 – PCB Design (Separate Milestone) After approval of the revised schematic, the person will be invited to design the PCB. The PCB will require careful consideration of: * Digital and analog domain separation * Galvanic isolation between domains * Isolated DC-DC power supplies * Creepage and clearance requirements * High-accuracy analog signal routing * Ground plane strategy (AGND/DGND/Field GND where applicable) * EMI/EMC-aware layout practices * Differential signal routing where required * Design for Manufacturability (DFM) Required Experience Please apply only if you have previous experience designing industrial or instrumentation products involving one or more of the following: * Isolated analog and digital circuits * Isolated DC-DC converters * Digital isolators * Precision analog front ends * 4–20 mA transmitters/receivers * RS-485 interfaces * ESP32 or STM32-based embedded systems * Mixed-signal PCB layout * Industrial measurement or control equipment Experience with products such as PLCs, industrial sensors, transmitters, process instrumentation, power monitoring equipment, medical electronics, or similar industrial products will be considered a significant advantage. Deliverables for Phase 1 * Updated EasyEDA project * Updated schematic * Updated footprints and libraries (if required) * ERC completed without critical errors * List of all design changes * List of DNP (Do Not Populate) components * Schematic ready for PCB layout Please Include in Your Proposal * Examples of similar industrial hardware projects you have completed. * Your experience with isolated power supplies and digital isolation. * Your experience with mixed-signal PCB design. * Confirmation that you are comfortable working with an existing EasyEDA project created by another engineer. Important: I am looking for a long-term collaborator. The schematic revision is the first milestone. Successful completion will lead to the PCB layout and potentially future hardware revisions.
Skills
Fuente original: freelancer