Sobre

I am looking for an experienced hardware engineer to perform a detailed review of both the schematic and PCB layout of my design. The project includes: LTE communication module: SIMCom A7673 Main controller: ESP32-S3 Power architecture: External power input, 1-cell Li-ion battery charging system, and autonomous operation circuitry. The goal is to validate the design, identify potential issues, and ensure best practices for RF layout, power integrity, grounding, and overall reliability. I expect feedback on component selection, routing, antenna considerations, and any required improvements for stable operation of both the LTE module and the ESP32-S3. If you have experience with ESP32-based designs, SIMCom modules, battery-powered systems, and PCB design for RF applications, your expertise will be highly valuable.