4 layers68.6 × 53.3 mm
4 layers6.3 × 6.4 mm
A VERY small FPGA based 10 pixel POV module.
- Size
- 6.3 × 6.4 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 25
- Nets
- 33
- Pads
- 136
- Tracks, vias
- 238, 17
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Sep 2018
- Updated
- 15 Sep 2018
Overview
PpPOV is an open-source printed circuit board by gregdavill, from the gregdavill/Perplexingly-Petite-Pov repository on GitHub, published under the MIT licence. It is a 4-layer board of 6.3 × 6.4 mm with 25 parts on 33 nets, routed with 238 tracks and 17 vias.
It is built around the SIT8008BI and TLV733PDBV. Its parts include 10 diodes, 7 connectors, 5 ICs, 2 capacitors and 1 resistor. It belongs with the FPGA and CPLD boards of this library.
Main components
2README
hw/idea_001/README.mdPerplexingly-Petite-Pov
A VERY small FPGA based 10 pixel POV module.
Current Status: Design Proof of concept.
Board render
Pricipal of Operation
The PCB is intended to be mounted at the edge of a computer fan, it should have all the hardware required to syncronise to the RPM, and keep time, display a rolling text Marquee.
Hardware
- Lattice iCE40LP1K FPGA 😍
- High speed Hall Effect Sensor 😁
- Configuration FLASH 🤩
- 16MHz MEMs Oscillator 😎
- 10x 0201 LEDs 🤪
- All within a 6.35mm x 6.35mm 4 layer PCB! 😨🤯
Schematic
Firmware
The Firmware has not been written yet, once the hardware is prototyped we can throw this over the cubicle wall to the firmware team.
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | LED_ALT | tinyfpga:0201_led | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 7 | TEST_1P | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | J1, J2, J3, J4, J5, J6, J7 |
| 1 | 100nF | Capacitors_SMD:C_0402_NoSilk | C8 |
| 1 | 1uF | Capacitors_SMD:C_0402_NoSilk | C2 |
| 1 | AT25SF041 | Housings_DFN_QFN:DFN-8-1EP_3x2mm_Pitch0.5mm | U1 |
| 1 | DRV5023 | TO_SOT_Packages_SMD:SC-59 | U4 |
| 1 | R | Resistors_SMD:R_0402 | R6 |
| 1 | SiT8008B | tinyfpga:CDFN3225-4LD-PL-1 | U2 |
| 1 | TLV733P | Housings_SON:TI_X2SON-4_1x1mm_Pitch0.65mm | U3 |
| 1 | iCE40-LP1K-CM49 | tinyfpga:VFBGA-49 | U6 |
Questions
How big is the PpPOV PCB?
It measures 6.3 × 6.4 mm and has 4 copper layers, 0.8 mm thick.
What parts does the PpPOV use?
25 parts, built around the SIT8008BI and TLV733PDBV. 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 PpPOV KiCad files?
From the gregdavill/Perplexingly-Petite-Pov repository on GitHub, at the commit this page was made from: the board is hw/idea_001/ppPOV.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PpPOV 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).
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