Chase Quijano

Coursework in embedded systems, circuit analysis, statics & dynamics, manufacturing processes, CAD/CAM, linear algebra, and differential equations. Active in undergraduate research and venture competitions.

• Co-founded medical startup focused on affordable remote ECG monitoring with co-founder Billy Zhang
• Designed 3 custom PCB iterations in KiCad — prototype, dev kit, and final wearable — progressing from off-the-shelf modules to fully integrated SMD assembly
• Developed ESP32 firmware in C++ for real-time ECG acquisition, signal processing, and TLS-encrypted MQTT transmission to AWS IoT Core
• Integrated AD8232 analog front-end, MAX1704x fuel gauge, and TP4056 Li-ion charging into compact wearable form factor
• Pitched at Rowan New Venture Competition with complete prototype system including hardware, cloud infrastructure, and doctor/patient web portals

• Designed large-format integrated PCB for upper-body exoskeleton driving 6-DOF BLDC motor array with solar charging and Raspberry Pi interface
• Built 8-IMU data acquisition system using BNO085 sensors and Teensy 4.1, implementing custom UART drivers with SLIP protocol framing over RS485
• Developed Python control software with real-time PID loops for coordinated multi-joint motor control with IMU feedback
• Fabricated custom 3D-printed ABS enclosures with heat-set inserts for robust mounting to exoskeleton frame

• Designed modular flexible PCBs (2 revisions) for self-reconfiguring soft robotic modules using KiCad
• Integrated ESP32-C3, DRV8837 motor drivers, and TPS63001 buck-boost regulation onto compact flex substrate with ENIG finish
• Implemented I2C communication bus for inter-module data exchange and power sharing
• Progressed from 2-layer to 4-layer flex stackup to improve signal integrity and power distribution

• Designed and CNC-machined custom load cell from 6010 aluminum billet, validated with SolidWorks FEA static stress simulation
• Achieved ±1% measurement accuracy over 0–3 kg range with HX711 ADC and Wheatstone bridge strain gauge configuration
• 3D printed ABS clamshell enclosure with heat-set inserts achieving IP31 ingress protection
• Wrote Arduino firmware for multi-unit display (g/oz/lb), tare calibration, and auto power-off

• Built ROS-based autonomous mobile robot with LIDAR navigation and custom chassis
• Designed two generations of self-balancing robots with iterative PID tuning and IMU feedback
• Developed FOC test rig for BLDC motor characterization and control algorithm validation

• Designed ESP32-S3 mesh networking system using ESP-NOW protocol for distributed MOSFET control
• Implemented reliable peer-to-peer communication for synchronized multi-node switching