4 layers97 × 94 mm
Main PCB
root670/dance-pad
Dance pad using FSRs and RGB LEDs in an extruded aluminum frame.
20 parts13MIT
2 layers200 × 200 mm
DDR Pad
root670/dance-pad13Dance pad using FSRs and RGB LEDs in an extruded aluminum frame.
- Size
- 200 × 200 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 33
- Pads
- 145
- Tracks, vias
- 374, 33
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Nov 2020
- Updated
- 31 Aug 2024
Overview
DDR Pad 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 2-layer board of 200 × 200 mm with 44 parts on 33 nets, routed with 374 tracks and 33 vias.
It is built around the WS2812B and RJ45. Its parts include 25 diodes, 4 resistors and 2 connectors. It belongs with the lEDs and displays boards of this library.
Main components
2README
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
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +9 |
| 4 | 330 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | Conn_01x02 | Connector_JST:JST_ZE_B02B-ZESK-1D_1x02_P1.50mm_Vertical | J_E_ZE1, J_N_ZE1, J_S_ZE1, J_W_ZE1 |
| 4 | Conn_01x02 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J_E_XH1, J_N_XH1, J_S_XH1, J_W_XH1 |
| 4 | MountingHole_4.3mm_M4 | MountingHole:MountingHole_4.3mm_M4 | M4, M4, M4, M4 |
| 1 | Conn_01x03 | footprints:1935174 | J9 |
| 1 | LOGO | DDR Pad:DDR Arrow | G*** |
| 1 | RJ45 | RJHSE-5080:AMPHENOL_RJHSE-5080 | J10 |
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Questions
How big is the DDR Pad PCB?
It measures 200 × 200 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DDR Pad use?
44 parts, built around the WS2812B and RJ45. 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 DDR Pad KiCad files?
From the root670/dance-pad repository on GitHub, at the commit this page was made from: the board is Arrow PCB/DDR Pad.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the DDR Pad 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).