

Capstone
- Size
- 48.3 × 24.1 mm
- Copper layers
- 4
- Thickness
- 1.55 mm
- Parts
- 58
- Nets
- 78
- Pads
- 220
- Tracks, vias
- 567, 56
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 25 Apr 2022
- Updated
- 2 Dec 2022
Overview
Capstone is an open-source printed circuit board by mct814, from the mct814/Pipe-Mapping-Project repository on GitHub, published under the MIT licence. It is a 4-layer board of 48.3 × 24.1 mm with 58 parts on 78 nets, routed with 567 tracks and 56 vias.
It is built around the LPC54113J128BD64QL, AT25SL128A-MHE-T and ISM330DHCXTR, with the ABS05-32.768KHZ-9-T among its other parts. Its parts include 16 capacitors, 7 resistors, 7 ICs, 2 diodes and 1 connector. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
4LPC54113J128BD64QL
LQFP-64(10x10)1.62V~3.6V 100MHz 128KB 12bit 48 ARM Cortex-M4 FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)AT25SL128A-MHE-T
UDFN-8-EP(5x6)1.7V~2V 100,000 cycles 133MHz 20 Years 600us 60ms@(4KB) SPI UDFN-8-EP(5x6) NOR FLASH ROHSRenesas ElectronicsNOR FLASHISM330DHCXTR
LGA-14LLGA-14L New Arrivals ROHSTexas InstrumentsUncategorisedABS05-32.768KHZ-9-T
SMD1610-2P-40℃~+85℃ 32.768kHz 90kΩ 9pF Crystal Oscillator ±20ppm SMD1610-2P Crystals ROHSAbraconCrystals
README
README.mdPipe-Mapping-Project
Executive Summary
The problem that we wish to solve is a simple one. Underground PVC piping is often necessary to fix but difficult to locate. Methods currently exist for the detection of large industrial pipes, but there is a distinct lack of such technology for small, residential PVC pipes. This project proposes a new way of mapping pipe networks by using a small probe to record positional data while harmlessly traversing the pipe. The team’s objective is to create a probe based system to traverse and map variable sized underground pipe networks in 3D space, within an acceptable margin of error. While developing a mechanical pipe traversal method for the probe is part of this project, the primary goal consists of setting up the base technology for 3D mapping and real time information collection inside of 2"-4" PVC pipe.
Current Version Capabilities
The current version of our design is still in the testing phase. While we have developed a functional testing system including a probe casing, pulley system and PVC network our current probe cannot fit inside the PVC pipe. The probe is using an arduino nano to pole data points and connect to the laptop which runs the mapping software. This probe can collect data while being powered by a set of 3 AA batteries and transmit said data to the PC. We have designed an improved system that would fit inside the 2" pipe but we have not yet implemented it. Our current mapping software can get data points within a relativiely similar shape to the physical path but still has a large margin of error. Further develpment of the mapping software is required to get within our original specification of 1" margin of error.
Salient Outcomes
Our main successes came in the form of the mechanical testing system shown below and the preliminary maps created during testing.

Testing Video
Project Photos

About Us
Developers
Adison Heathcott
I am a computer engineering senior at Tennessee Technological University. I am originally from Knoxville, TN and graduated from Bearden High School.
Ben Ask
I am a computer engineering senior at Tennessee Technological University. I am originally from Greensboro, NC and graduated from Ravenwood High School.
Caleb Thorne
I am an electrical engineering senior at Tennessee Technological University. I am originally from Pulaski, TN and graduated from Giles County High School.
Elizabeth Russell
I am an electrical engineering senior at Tennessee Technological University. I am originally from Tullahoma, TN and graduated from Family Christian Academy.
Faculty Supervisor
Jesse Roberts
Customer
Pipe locating services
Description of Repository
The main file of the repository contains the lisence, readme, planned software file, reports folder, and project documentation folder. Inside of the reports folder are the original project proposal, the design phase 1 document, and the final report. Inside the project documentation folder is the bill of materials, project schematic and the folders for each of the subsystems that have been designed. Each of the subsystem folders contains schematics and readme descriptions of the design process.
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | 1.8V, 3.3V, Battery, CS, GND1, GND2, RTCXIN, RTCXOUT, SCK, SDA, SDO |
| 8 | , , , , , , , | ||
| 4 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C6 |
| 4 | 100n | Capacitor_SMD:C_0603_1608Metric | C8, C9, C12, C13 |
| 4 | MountingHole_2.1mm | MountingHole:MountingHole_2.1mm | , , , |
| 3 | 1M | Resistor_SMD:R_0603_1608Metric | R1, R6, R7 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C14, C15, C17 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric | C10, C11 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | ISM330DHCXTR | IMU_ISM330DHCXTR:ISM330DHCXTR | U2, U3 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 0.01u | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | ABS05-32.768KHZ-9-T | OSC_ABS05-32.768KHZ-9-T:ABS05-32.768KHZ-9-T | U4 |
| 1 | AT25SL128A-MHE-T | MEM_AT25SL128A-MHE-T:AT25SL128A-MHE-T | U5 |
| 1 | L | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | LPC54113J128BD64QL | MCU_LPC54113J128BD:QFP50P1200X1200X160-64N | H1 |
| 1 | NCP163ASN180T1G | NCP163ASN180T1G:NCP163ASN180T1G | U7 |
| 1 | NCP730BMT330TBG | NCP730BMT330TBG:NCP730BMT330TBG | U6 |
| 1 | SWD_485-4048 | SWD_485-4048:SWD_485-4048 | U1 |
| 1 | USB4085-GF-A_REVA4 | USB_4085-GF-A_REVA4:GCT_USB4085-GF-A_REVA4 | J1 |
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Questions
How big is the Capstone PCB?
It measures 48.3 × 24.1 mm and has 4 copper layers, 1.55 mm thick.
What parts does the Capstone use?
58 parts, built around the LPC54113J128BD64QL, AT25SL128A-MHE-T, ISM330DHCXTR and ABS05-32.768KHZ-9-T. 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 Capstone KiCad files?
From the mct814/Pipe-Mapping-Project repository on GitHub, at the commit this page was made from: the board is projectDocumentation/pcbSubsystem/KiCAD_PCB_Design/Capstone.kicad_pcb and its schematic projectDocumentation/pcbSubsystem/KiCAD_PCB_Design/Capstone.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Capstone design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).