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2 layers45.8 × 144.9 mmDAQ HAT, the printed circuit board in 3D

Evolution of the RDT's Custom Liquid Engine Control Unit!

Size
45.8 × 144.9 mm
Copper layers
2
Thickness
1.6 mm
Parts
31
Nets
30
Pads
116
Tracks, vias
164, 778
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
8 Sep 2024
Updated
27 Oct 2026

Overview

DAQ HAT is an open-source printed circuit board by MSTRocketDesignTeam, from the MSTRocketDesignTeam/Liquid-Engine-Controller repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board of 45.8 × 144.9 mm with 31 parts on 30 nets, routed with 164 tracks and 778 vias.

It is built around the UA78M09CKVURG3. Its parts include 12 connectors, 3 resistors, 2 capacitors and 2 ICs.

Main components

1

README

README.md

Missouri S&T Rocket Design Team

*This repo is intended for educational purposes only*

SRAD Engine Controller

A student researched and designed (SRAD) engine controller for the liquid bipropellant rocket.

About

This project is the first iteration of the flight controller for the Rocket Design Team's (RDT) liquid bipropellant rocket. It aims to provide basic engine control functionality, such as opening and closing of the servo ball valves (SBV), as well as to set the hardware baseline for more advanced control functionality like throttling algorithms for flight efficiency. Additionally, the Liquid Engine Controller (LEC) aims to serve as the data acquisition computer for the propulsion system, in order to analyze the performance of the propulsion system.

Documentation

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Development

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File Structure

This repo contains three main sections, hardware, firmware, and software.

Hardware:

The hardware directory will contain all of the files related to the design and assembly of the PCBs. This includes KiCad projects as well as BOMs.

Firmware:

The firmware directory will contain all of the code (C++) necessary to operate the above hardware. Once the boards have been designed and assembled this is where significant effort will be made.

Software:

The software directory will contain the code (Python) for the LEC's computer interface. This program will be responsible for configuring the LEC prior to launch as well as for displaying live propulsion system state data from the launch pad.

Future developments may allow for preflight simulations (FEA / CFD of engine, estimated throttling curve, etc.).

Parts

31
QtyValueFootprintReferences
10.33uCapacitor_SMD:C_1206_3216MetricC2
1100Resistor_SMD:R_0603_1608MetricR1
1100nCapacitor_SMD:C_0603_1608MetricC1
110KResistor_SMD:R_0603_1608MetricR2
11kResistor_SMD:R_1206_3216MetricR4
1Chamber_PTM8_Conn:TENSILITY_54-00278J7
1Chamber_Wall_TC1Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ9
1Chamber_Wall_TC2Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ10
1Conn_02x07_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x07_P2.54mm_VerticalJ11
1DAQ_ModuleDAQ_Module:DAQ_ModuleU1
1Fan_ConnConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ13
1Fuel_Manifold_PTM8_Conn:TENSILITY_54-00278J6
1Fuel_Tank_PTM8_Conn:TENSILITY_54-00278J1
1Fuel_dPTM8_Conn:TENSILITY_54-00278J3
1LOGORDT_Logo:RDT_LogoG***
1Ox_Manifold_PTM8_Conn:TENSILITY_54-00278J5
1Ox_Tank_PTM8_Conn:TENSILITY_54-00278J2
1Ox_Tank_TCConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ8
1Ox_dPTM8_Conn:TENSILITY_54-00278J4
1SSM3K2615R_LFSSM3K2615R_LF:SOT-23F_TOSMOSFET1
1UA78M09CKVURG3Package_TO_SOT_SMD:TO-252-2U2

The 21 most common of 31 parts.

Questions

How big is the DAQ HAT PCB?

It measures 45.8 × 144.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the DAQ HAT use?

31 parts, built around the UA78M09CKVURG3. 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 DAQ HAT KiCad files?

From the MSTRocketDesignTeam/Liquid-Engine-Controller repository on GitHub, at the commit this page was made from: the board is _archive/hardware-leviathan/DAQ_HAT/DAQ_HAT.kicad_pcb and its schematic _archive/hardware-leviathan/DAQ_HAT/DAQ_HAT.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the DAQ HAT design in my own project?

Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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