We are seeking an experienced PCB designer to develop a custom printed circuit board for a medical device. The design must meet stringent performance, reliability, and compliance requirements as outlined below.

Key Requirements

1. Microcontroller: Atmega328pb as the core processor.
2. Motor Driver: Integrated motor driver for precise control of a small DC motor.
3. Communication Interfaces:
4. UART for serial communication.
5. I2C for interfacing with sensors and peripherals.
6. Switch: Support for limit switch integration
7. BLE Module: Onboard Bluetooth Low Energy module for wireless communication.
8. Dimensions: To be finalized based on enclosure constraints (please propose compact layout options).
9. Must adhere to IEC 60601 standards for ESD, EMI, and EMC compliance.
10. Safety Features:
a. External Watchdog Timer for system reliability.
b. Overcurrent protection for motor and power circuits.
c. Power Supervisor to ensure stable operation across voltage ranges.
d. Reverse Voltage Protection to safeguard against incorrect power connections.


Deliverables
a. Schematic design and PCB layout files (KiCad).
b. Bill of Materials (BOM) with readily available components.
c. Design documentation, including compliance considerations for IEC 60601.

Qualifications

1. Proven experience in PCB design for medical or high-reliability applications.
2. Knowledge of IEC 60601 standards for ESD, EMI, and EMC compliance.
3. Expertise in designing compact layouts with robust safety features.

Timeline: 3 weeks