2 layers65 × 56.5 mm
Ltp kikad
ADDTDR/Pitanga
Prototype 0.01 | Pitanga V1 | Pitanga V2.1a :-------------------------:|:-------------------------:|:-------------------------: | |
54 parts4MIT
2 layers22.7 × 20.6 mm
UMatrix
PStinno/micro-matrix-pcbSmall pcb design enabling control of an onboard LED matrix over I2C.
- Size
- 22.7 × 20.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 24
- Pads
- 67
- Tracks, vias
- 247, 20
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 18 Mar 2020
- Updated
- 14 Apr 2022
Overview
UMatrix is an open-source printed circuit board by PStinno, from the PStinno/micro-matrix-pcb repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 22.7 × 20.6 mm with 16 parts on 24 nets, routed with 247 tracks and 20 vias.
It is built around the LTP-305G. Its parts include 3 capacitors, 3 resistors, 1 IC and 1 connector. It belongs with the lEDs and displays boards of this library.
Main components
1README
README.mdµMatrix PCB
Small pcb design (< 1 inch square) with an onboard 5x7 LED matrix, controllable over I2C.
The LED matrix display used is the LTP-305/G from Lite-On Inc. The IS31FL3730 LED matrix driver IC, from ISSI Inc., is used to drive the matrix and provide control over I2C. The I2C address can be selected with solder jumpers on the back of the board from four possible options. It is compatible with power and logic at both 3.3 and 5V.
Also included in this repository is a simple software example for driving the display with an Arduino Uno or similar microcontroller development board. The basic implementation allows for displaying of text on the matrix, either flashed one character at a time or scrolled continuously across the display. Currently the font only supports the capital letters from A-Z and spaces.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Jumper_NO_Small | Connectors:GS2 | 60h, 61h, 62h, 63h |
| 2 | 0.1uF | Capacitors_SMD:C_0603 | C2, C3 |
| 2 | 10K | Resistors_SMD:R_0603 | R1, R2 |
| 1 | 100K | Resistors_SMD:R_0603 | R3 |
| 1 | 1uF | Capacitors_SMD:C_0603 | C1 |
| 1 | Conn_01x05 | Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm | J1 |
| 1 | IS31FL3730 | Housings_DFN_QFN:QFN-24-1EP_4x4mm_Pitch0.5mm | U1 |
| 1 | LOGO | Graphic:mu_mask | G*** |
| 1 | LOGO | Graphic:mu | G*** |
| 1 | LOGO | Graphic:mat | G*** |
| 1 | LTP-305 | LTP_305_Matrix:LTP-305 | DS1 |
Questions
How big is the UMatrix PCB?
It measures 22.7 × 20.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the UMatrix use?
16 parts, built around the LTP-305G. 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 UMatrix KiCad files?
From the PStinno/micro-matrix-pcb repository on GitHub, at the commit this page was made from: the board is kicadFiles/uMatrix.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the UMatrix design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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