2 layers100 × 100 mm
E throttle
tongclement/FBR-E-Throttle
Electronic Throttle Control (ETC) System for the Cambridge Formula Student Team
68 parts
2 layers96.3 × 78.3 mm
Actuation board2
cuspaceflight/Engine-Test-Stand-InstrumentationEngine test stand for Cambridge University Space Flight
- Size
- 96.3 × 78.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 45
- Pads
- 133
- Tracks, vias
- 52, 4
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Mar 2026
- Updated
- 1 Nov 2026
Overview
Actuation board2 is an open-source printed circuit board by cuspaceflight, from the cuspaceflight/Engine-Test-Stand-Instrumentation repository on GitHub. It is a 2-layer board of 96.3 × 78.3 mm with 20 parts on 45 nets, routed with 52 tracks and 4 vias.
It is built around the ESP32-S3-DEVKITC-1-N8, R-78E5.0-1.0 and SN65HVD230D. Its parts include 7 connectors, 4 capacitors, 3 ICs, 1 resistor and 1 fuse. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-S3-DEVKITC-1-N8
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
R-78E5.0-1.0
SIP,11.6x7.5mm-40℃~+85℃ 1 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery Step-down type ±3% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
README
README.mdCambridge University Space Flight Engine Test Stand
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
Board Details
Servo + Solenoid Board
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
Solenoid Section
Each of the solenoid channels uses an MPS MPQ6610 half-bridge power driver.
Servo Section
4 servos (FeeTech 180 Degrees Digital Servo 7.4V 35kg/cm FT5330M)
- PWM signal from ESP32
Instrumentation Board
- Load cell
- 8 Pressure sensors
- 4 thermocouples
Repository Structure
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 Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3 |
| 1 | 100 nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 120 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 15A | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 470uF | Capacitor_THT:CP_Radial_D10.0mm_P7.50mm | C5 |
| 1 | Conn_01x02_Pin | Connector_AMASS:AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J7 |
| 1 | Conn_01x03_Socket | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_01x11_Socket | Connector_PinSocket_2.54mm:PinSocket_1x11_P2.54mm_Vertical | J6 |
| 1 | ESP32-S3-DevKitC | Espressif:ESP32-S3-DevKitC | U2 |
| 1 | R-78E5.0-1.0 | Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT | U3 |
| 1 | SERVO1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | SERVO2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | SERVO3 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | SERVO4 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
Questions
How big is the Actuation board2 PCB?
It measures 96.3 × 78.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Actuation board2 use?
20 parts, built around the ESP32-S3-DEVKITC-1-N8, R-78E5.0-1.0 and SN65HVD230D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Actuation board2 KiCad files?
From the cuspaceflight/Engine-Test-Stand-Instrumentation repository on GitHub, at the commit this page was made from: the board is Hardware/PCBs/actuation_board_v2/actuation_board2.kicad_pcb and its schematic Hardware/PCBs/actuation_board/actuation_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Actuation board2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask cuspaceflight before reusing the design.
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