This is a P8X32A/Propeller driver object for the Holtek HT16K33 LED Matrix/Segment IC (I2C).
IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.
- I2C connection at up to 400kHz
- Set display brightness, blinking
- Multiple address support
- Supports Adafruit variant of the 8x8 matrix
- Supports Adafruit 14-segment backpack 14-segment displays
P1/SPIN1:
- spin-standard-library
- P1/SPIN1: 1 extra core/cog for the PASM I2C engine
- graphics.common.spinh library (only required for matrix driver; provided by spin-standard-library)
- terminal.common.spinh (required for both matrix and 14-seg drivers; provided by spin-standard-library)
P2/SPIN2:
- p2-spin-standard-library
- graphics.common.spin2h library (only required for matrix driver; provided by p2-spin-standard-library)
- terminal.common.spin2h (required for both matrix and 14-seg drivers; provided by p2-spin-standard-library)
| Processor | Language | Compiler | Backend | Status |
|---|---|---|---|---|
| P1 | SPIN1 | FlexSpin (6.9.4) | Bytecode | OK |
| P1 | SPIN1 | FlexSpin (6.9.4) | Native/PASM | OK |
| P2 | SPIN2 | FlexSpin (6.9.4) | NuCode | OK |
| P2 | SPIN2 | FlexSpin (6.9.4) | Native/PASM2 | OK |
(other versions or toolchains not listed are not supported, and may or may not work)
- Tested using Adafruit 8x8 LED matrix
- Tested using Adafruit 14-segment LED
- Very early in development - may malfunction or outright fail to build
- Matrix driver written using Adafruit 8x8 backpack for development - pixel layout may differ from other brands or models
- 14-seg driver written using Adafruit 14-seg backpack for development - segment layout may differ from other brands or models
- Doesn't support 16 pixel-wide displays (planned)