2 layers20 × 42.9 mm
2 layers45.6 × 49.5 mm
Hex2811
brainsmoke/hex2811-penta5LED Strip Driver PCB
- Size
- 45.6 × 49.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 94
- Pads
- 230
- Tracks, vias
- 376, 27
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 10 Oct 2016
- Updated
- 10 Dec 2020
Overview
Hex2811 is an open-source printed circuit board by brainsmoke, from the brainsmoke/hex2811-penta repository on GitHub, published under the MIT licence. It is a 2-layer board of 45.6 × 49.5 mm with 42 parts on 94 nets, routed with 376 tracks and 27 vias.
It is built around the MK20DX256VLH7, 74HC245D and AMS1117. Its parts include 21 resistors, 6 capacitors, 5 connectors, 4 ICs and 1 crystal. It belongs with the lEDs and displays boards and the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
3
MK20DX256VLH7
LQFP-64(10x10)12bit 16bit 256KB 288KB 40 72MHz ARM Cortex-M4 FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Built-in general-purpose timer、Hardware CRC、Calendar function、Touch function、Software watchdog LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)
74HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
AMS1117
1.0 A Low-Dropout Fixed RegulatorAdvanced Monolithic SystemsUncategorised
README
README.mdHex2811 Penta
A 16x WS2812/SK6812 ledstrip driver for my LED ball with 900 SK6812 LEDs.
Essentially a clone to the awesome fadecandy board, but with a faster MCU and a second buffer chip connected to PORTC bits 0-7, allowing me to drive 16x80 RGB chips, or 16x60 RGBW chips.
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 68 Ohm | lib:R0603 | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 |
| 6 | C | lib:R0603 | C1, C2, C3, C4, C5, C6 |
| 5 | R | lib:R0603 | R17, R18, R19, R20, R21 |
| 4 | FILTER | lib:R0603 | FB1, FB2, FB3, FB4 |
| 2 | 74HC245 | lib:tssop20 | U2, U3 |
| 1 | hex2811:hex2811 | ||
| 1 | AMS1117 | lib:SOT223 | U4 |
| 1 | CONN_01X02 | Pin_Headers:Pin_Header_Straight_2x01 | P2 |
| 1 | CONN_02X08 | 2x8 | P1-8 |
| 1 | CONN_02X08 | lib:2x8 | P9-16 |
| 1 | CRYSTAL_SMD | lib:TSX-3225 | X1 |
| 1 | MK20DX256VLH7 | lib:LQFN64 | U1 |
| 1 | USB_OTG | USB_Mini-B | P1 |
| 1 | hackerport | hackerport | P3 |
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Questions
How big is the Hex2811 PCB?
It measures 45.6 × 49.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hex2811 use?
42 parts, built around the MK20DX256VLH7, 74HC245D and AMS1117. 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 Hex2811 KiCad files?
From the brainsmoke/hex2811-penta repository on GitHub, at the commit this page was made from: the board is pcb/hex2811.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hex2811 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).