ESP32-S3-Based PCB with Expanded I/O, Analog Sensors, and Ethernet Integration

Job ID: 38927372

Budget: $250 – $750 USD

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.