2 layers200 × 200 mm
DDR Pad
root670/dance-pad
Dance pad using FSRs and RGB LEDs in an extruded aluminum frame.
44 parts13MIT
4 layers97 × 94 mm
Main PCB
root670/dance-pad13Dance pad using FSRs and RGB LEDs in an extruded aluminum frame.
- Size
- 97 × 94 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 81
- Pads
- 160
- Tracks, vias
- 139, 9
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Nov 2020
- Updated
- 31 Aug 2024
Overview
Main PCB is an open-source printed circuit board by root670, from the root670/dance-pad repository on GitHub, published under the MIT licence. It is a 4-layer board of 97 × 94 mm with 20 parts on 81 nets, routed with 139 tracks and 9 vias.
It is built around the SN74AHCT125PW, TEENSY 4.1 and RJHSE-5080. Its parts include 10 connectors, 3 ICs and 1 capacitor. It belongs with the lEDs and displays boards and the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
3
SN74AHCT125PW
TSSOP-14-40℃~+85℃ 1 20uA 4 4.5V~5.5V 74AHCT 8.5ns@5V,50pF 8mA 8mA Output enable Tri-State Unidirectional TSSOP-14 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
TEENSY 4.1
Development Boards & Kits - ARM ModuleSparkFun ElectronicsUncategorised
RJHSE-5080
插件-55℃~+85℃ 1 Gold Non-LED Phosphor bronze Right Angle Unshielded 插件 Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSAmphenolEthernet Connectors / Modular Connectors (RJ45 RJ11)
README
Arrow PCB/README.mdArrow Panel PCB
Board placed under each panel. Houses 25 WS2812B V5 RGB LEDs and connects to 4 FSR sensors using JST-XE or JST-ZH connectors. Connects back to the Main PCB using a CAT6 cable for the sensors and cables secured to a screw terminal for the lights.
Notes
- The pull down resistor used for each sensor may need to be adjusted depending on the sensors being used.
- The board requires the "V5" revision of the WS2812B LEDs. The advantage of this version is that have an internal capacitor so you don't the need to place an external capacitor between the positive voltage and ground pins. If an older version is used the LEDs will likely be damaged when they receive power.
Issues
- I was unable to get the LEDs to work reliably using multiple 3.3v and 5v microcontrollers and WS2812B libraries. I believe there is something wrong with my design or the LEDs sourced by LCSC were not actually the 5V variations. LCSC has been unable to confirm if they are actually the V5 version.
- The PCB is too big to fit within the frame underneath the panels when using corner brackets. As a workaround the PCBs need to be placed underneath the frame.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | Conn_01x03 | footprints:1935174 | J6, J7, J8, J9, J10 |
| 4 | RJHSE-5080 | RJHSE-5080:AMPHENOL_RJHSE-5080 | J1, J2, J3, J4 |
| 2 | SN74AHCT125PW | SN74AHCT125PW:SOP65P640X120-14N | U2, U3 |
| 1 | 1000u | Capacitor_SMD:CP_Elec_8x10 | C1 |
| 1 | Conn_01x02 | footprints:1935161 | J5 |
| 1 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | LOGO | Main PCB:DDR Arrow | G*** |
| 1 | Teensy4.1 | Main PCB:Teensy41 | U1 |
The 16 most common of 20 parts.
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Questions
How big is the Main PCB PCB?
It measures 97 × 94 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Main PCB use?
20 parts, built around the SN74AHCT125PW, TEENSY 4.1 and RJHSE-5080. 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 Main PCB KiCad files?
From the root670/dance-pad repository on GitHub, at the commit this page was made from: the board is Main PCB/Main PCB.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Main PCB 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).