This repo contains documents for CUSF engine test stand. The electronics are split across 2 circuit boards:

Servo + Solenoid Board Drives 2 solenoid valves (MPQ6610 half-bridge ICs) and up to 4 servos Instrumentation Board Reads pressure transducers, thermocouples, and a load cell for thrust measurement

A laptop running ground-station software sends commands to the ESP32 on the servo board, and polls the Instrumentation Board to read sensor data

This board contains the circuits for driving the servos and solenoids. Uses an ESP32 microcontroller (ESP32 S3 DevKit C1). The microcontroller is alos responsible for:

• Communication with laptop
• Driving servos and solenoids
• Inputs raw data from sensors and sends to laptop

Each of the solenoid channels uses an MPS MPQ6610 half-bridge power driver.

4 servos (FeeTech 180 Degrees Digital Servo 7.4V 35kg/cm FT5330M)

• PWM signal from ESP32

• Load cell
• 8 Pressure sensors
• 4 thermocouples

cusf-engine_test_stand/
│
├── hardware/
│   ├── master-board/
│   │   ├── kicad/              # Schematic + PCB project
│   │
│   ├── servo-solenoid-board/
│   │   ├── kicad/
│   │
│   ├── instrumentation-board/
│   │   ├── kicad/
│   │
│   ├── Datasheets
│   │   ├── MPQ6610.pdf
│   │
│
├── Software/
│   ├── servo/
│   ├── solenoid/
│   ├── instrumentation/
│   ├──Laptop software (GUI + logging)
│
└── README.md