2 layers153 × 95.8 mm
Spekky Matrix
jc-SpaceXp/Spekky-Matrix
Spectrum analyser displayed on a LED matrix board connected to a STM32 device
390 parts1MIT
2 layers80 × 40 mm
OSLB56317-XX Driver
Electro707/OSLB56317_DriverA driver board and firmware for the OSLB56317 LED matrix
- Size
- 80 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 73
- Pads
- 265
- Tracks, vias
- 479, 35
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Dec 2024
- Updated
- 1 Jan 2025
Overview
OSLB56317-XX Driver is an open-source printed circuit board by Electro707, from the Electro707/OSLB56317_Driver repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 80 × 40 mm with 35 parts on 73 nets, routed with 479 tracks and 35 vias.
It is built around the 74HC245D and STP16CP05XT. Its parts include 19 resistors, 5 capacitors, 4 ICs, 1 diode and 1 connector. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
Main components
2
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
STP16CP05XT
TSSOP-24-EP-40℃~+125℃ 100mA 16 20V 30MHz 3V~5.5V 5% Built-in TSSOP-24-EP LED Drivers ROHSSTMicroelectronicsLED Drivers
README
README.mdOSLB56317-XX LED Driver
This project is to drive the OSLB56317 16x16 LED matrix I got from my trip to Japan (from Akizuki)
Project Structure
CAD: FreeCAD Source file for enclosureFirmware_Demo: A quick demo firmware to get the display up and runningFirmware_FFT: Firmware to display an audio spectrograph from a USB host- The firmware will act as a USB speaker, which audio must be routed to it
PCB: KiCAD PCB source files
Known Issues
- I goofed up on the RP2040's SPI wiring to the constant current led driver, so for now it is emulated in software
- todo: make this a PIO block, or even a PIO block to drive the entire display?
- In the CAD file, there is no easy way to take it apart other than pushing a small flat head between the display and the case. With PLA, the case is maluable enough to bend
- todo: add some small slot eventually to be able to easily remove the display assembly
- In the schematic, the columns and row new names should be swapped (don't ask how that happened), but this has no effects on functionality
- In
Firmware_FFT, every now and then the main loop will unexpectantly stop, randomly- todo: attach debugger and see what causes this crash, probably some incorrect memory indexing
todo, maybe
- Develop a PIO block for the LED matrix
- Create more fun demo codes (animation?)
- Create a USB audio spectrum analyzer
License
This project, except for the external Firmware_FFT/Adafruit_ZeroFFT, is licensed under GPLv3. See LICENSE.md for details.
Credit
A fork of Adafruit's ZeroFFT library, by donmccoy, was used in this project, and that is licensed under BSD-3
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 0 | Resistor_SMD:R_0402_1005Metric | R1, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19 +1 |
| 5 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 74HC245 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U3, U4 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 4.7k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | OSLB56317 | ProjectLib:OSLB56317-XX | D1 |
| 1 | RaspberryPi_Pico | Module_RaspberryPi_Pico:RaspberryPi_Pico_Original_SMD_HandSolder | A1 |
| 1 | STP16CP05XT | Package_SO:HTSSOP-24-1EP_4.4x7.8mm_P0.65mm_EP3.2x5mm | U2 |
| 1 | Screw_Terminal_01x06 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-6-2.54_1x06_P2.54mm_Horizontal | J1 |
| 1 | ~ | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U1 |
Questions
How big is the OSLB56317-XX Driver PCB?
It measures 80 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OSLB56317-XX Driver use?
35 parts, built around the 74HC245D and STP16CP05XT. 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 OSLB56317-XX Driver KiCad files?
From the Electro707/OSLB56317_Driver repository on GitHub, at the commit this page was made from: the board is PCB/OSLB56317-XX Driver.kicad_pcb and its schematic PCB/OSLB56317-XX Driver.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OSLB56317-XX Driver design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 4 layers177 × 91.8 mm
Orrery circuit
Drummersbrother/vanity-electronics
My various small-to-medium electronics (read: EDA) projects. Free for personal use only unless otherwise specified
170 parts - 11 layers42 × 24 mm
- 2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326 - 2 layers191.8 × 121.3 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-1-2
Legacy: Version 1 and 2 of my TTL-only CPU featuring UART I/O, an expansion port, 512KB SSD at up to 10MHz clock speed
109 parts184 - 4 layers215 × 150 mm
Mackerel-30-proto
crmaykish/mackerel-68k
A series of single-board Motorola 68k computers with support for modern Linux
133 parts96MIT - 2 layers306.1 × 130.2 mm
8-Bit CPU 32k
slu4coder/Minimal-64-Home-Computer
Legacy: Full TTL-only home computer with VGA and PS/2 and twice the processing power of a Commodore 64
132 parts94 - 2 layers36.8 × 27.9 mm
PixelvationEngine V01
Pixelvation/Pixelvation
This GitHub repository is the current home of Pixelvation and will be updated whenever there's some significant new development.
30 parts69