2 layers290.1 × 130 mm
2 layers80.9 × 83.9 mm
OTAPS - An Open Source Train Accident Prevention System
- Size
- 80.9 × 83.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 45
- Pads
- 123
- Tracks, vias
- 219, 36
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 Sep 2024
- Updated
- 12 Nov 2024
Overview
Nodes is an open-source printed circuit board by Ozonised, from the Ozonised/OTAPS_Hardware repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 80.9 × 83.9 mm with 31 parts on 45 nets, routed with 219 tracks and 36 vias.
It is built around the AMS1117-3.3. Its parts include 10 resistors, 5 ICs, 4 diodes, 4 connectors and 3 capacitors.
Main components
1README
README.md
OTAPS - Open Train Accident Prevention System
This repository contains schematic, PCB and wiring files for OTAPS.
Directory info:
Wiringcontains the schematic for wiring signal node.WiringLocomotiveUnitcontains the schematic for wiring the locomotive unit.Nodescontains the schematic and PCBs files for the PCBs.
DETAILS:
I created this project for the Circuit Digest 2024 IoT & Edge AI Project Challenge. The firmware for the signal and locomotive units is available at this repository: https://github.com/Ozonised/OTAPS_Firmware The project details including features, working protocol, build guide and code explanation can be found on this page: https://circuitdigest.com/microcontroller-projects/otaps-open-train-accident-prevention-system
NOTE:
Both signal and locomotive units utilise the same PCB.
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R5, R6, R7, R8 |
| 4 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10, R11, R12 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | NRF24L01_Breakout | RF_Module:nRF24L01_Breakout | U1, U2, U5 |
| 2 | Screw_Terminal_01x03 | Screw_Terminal_01x03:Screw_Terminal_01x03 | J3, J4 |
| 2 | YELLOW | LED_THT:LED_D3.0mm | D2, D4 |
| 1 | 1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3 |
| 1 | 220uF | Capacitor_SMD:CP_Elec_8x10.5 | C2 |
| 1 | 22uF | Capacitor_Tantalum_SMD:CP_EIA-3528-15_AVX-H_Pad1.50x2.35mm_HandSolder | C1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Barrel_Jack_MountingPin | Connector_BarrelJack:BarrelJack_Horizontal | J2 |
| 1 | Conn_01x04_Socket | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | GREEN | LED_THT:LED_D3.0mm | D3 |
| 1 | RED | LED_THT:LED_D3.0mm | D1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_PTS647_Sx38 | SW1 |
| 1 | YAAJ_BluePill_Part_Like | BluePill:YAAJ_BluePill_1 | U4 |
Questions
How big is the Nodes PCB?
It measures 80.9 × 83.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nodes use?
31 parts, built around the AMS1117-3.3. 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 Nodes KiCad files?
From the Ozonised/OTAPS_Hardware repository on GitHub, at the commit this page was made from: the board is Nodes/Nodes.kicad_pcb and its schematic Nodes/Nodes.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nodes design in my own project?
Its repository publishes it under the GPL-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).
Similar boards
- 2 layers26.2 × 45.5 mm
PL18 multiprotocol
pascallanger/DIY-Multiprotocol-TX-Module
Multiprotocol TX Module (or MULTI-Module) is a 2.4GHz transmitter module which controls many different receivers and models.
24 parts1.9kGPL-3.0 - 4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0 - 4 layers85 × 56 mm
- 4 layers100 × 54 mm
32Bit shift register
MaltWhiskey/Mega-Cube
16x16x16 PL9823 Cube with Teensy 4.0 and FlexIO driver
64 parts766 - 2 layers44.2 × 29.3 mm
- 2 layers78 × 60 mm
- 2 layers59.1 × 99.9 mm
Cheap FOCer 2 60mm
shamansystems/Cheap-FOCer-2
Low-Cost Motor Controller based on the VESC 6
193 parts407