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0.1.0 TLC5947
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28
libraries/TLC5947/.arduino-ci.yml
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28
libraries/TLC5947/.arduino-ci.yml
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@ -0,0 +1,28 @@
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platforms:
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rpipico:
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board: rp2040:rp2040:rpipico
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package: rp2040:rp2040
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||||
gcc:
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||||
features:
|
||||
defines:
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||||
- ARDUINO_ARCH_RP2040
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||||
warnings:
|
||||
flags:
|
||||
|
||||
packages:
|
||||
rp2040:rp2040:
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||||
url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
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||||
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compile:
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# Choosing to run compilation tests on 2 different Arduino platforms
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platforms:
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- uno
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||||
# - due
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||||
# - zero
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||||
# - leonardo
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- m4
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- esp32
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- esp8266
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# - mega2560
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- rpipico
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|
4
libraries/TLC5947/.github/FUNDING.yml
vendored
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4
libraries/TLC5947/.github/FUNDING.yml
vendored
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# These are supported funding model platforms
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github: RobTillaart
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|
13
libraries/TLC5947/.github/workflows/arduino-lint.yml
vendored
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13
libraries/TLC5947/.github/workflows/arduino-lint.yml
vendored
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@ -0,0 +1,13 @@
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name: Arduino-lint
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on: [push, pull_request]
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jobs:
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lint:
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||||
runs-on: ubuntu-latest
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||||
steps:
|
||||
- uses: actions/checkout@v3
|
||||
- uses: arduino/arduino-lint-action@v1
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||||
with:
|
||||
library-manager: update
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||||
compliance: strict
|
17
libraries/TLC5947/.github/workflows/arduino_test_runner.yml
vendored
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17
libraries/TLC5947/.github/workflows/arduino_test_runner.yml
vendored
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@ -0,0 +1,17 @@
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||||
---
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||||
name: Arduino CI
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||||
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||||
on: [push, pull_request]
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||||
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||||
jobs:
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||||
runTest:
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||||
runs-on: ubuntu-latest
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||||
|
||||
steps:
|
||||
- uses: actions/checkout@v3
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||||
- uses: ruby/setup-ruby@v1
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with:
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||||
ruby-version: 2.6
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- run: |
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gem install arduino_ci
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arduino_ci.rb
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18
libraries/TLC5947/.github/workflows/jsoncheck.yml
vendored
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18
libraries/TLC5947/.github/workflows/jsoncheck.yml
vendored
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@ -0,0 +1,18 @@
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name: JSON check
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||||
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||||
on:
|
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push:
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paths:
|
||||
- '**.json'
|
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pull_request:
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||||
|
||||
jobs:
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test:
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runs-on: ubuntu-latest
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||||
steps:
|
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- uses: actions/checkout@v3
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||||
- name: json-syntax-check
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uses: limitusus/json-syntax-check@v1
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with:
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pattern: "\\.json$"
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||||
|
12
libraries/TLC5947/CHANGELOG.md
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libraries/TLC5947/CHANGELOG.md
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# Change Log TLC5947
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/)
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and this project adheres to [Semantic Versioning](http://semver.org/).
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## [0.1.0] - 2023-06-17
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- initial version
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21
libraries/TLC5947/LICENSE
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libraries/TLC5947/LICENSE
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MIT License
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||||
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Copyright (c) 2023-2023 Rob Tillaart
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||||
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Permission is hereby granted, free of charge, to any person obtaining a copy
|
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of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
127
libraries/TLC5947/README.md
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127
libraries/TLC5947/README.md
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@ -0,0 +1,127 @@
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[![Arduino CI](https://github.com/RobTillaart/TLC5947/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
|
||||
[![Arduino-lint](https://github.com/RobTillaart/TLC5947/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/TLC5947/actions/workflows/arduino-lint.yml)
|
||||
[![JSON check](https://github.com/RobTillaart/TLC5947/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/TLC5947/actions/workflows/jsoncheck.yml)
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||||
[![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/TLC5947/blob/master/LICENSE)
|
||||
[![GitHub release](https://img.shields.io/github/release/RobTillaart/TLC5947.svg?maxAge=3600)](https://github.com/RobTillaart/TLC5947/releases)
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# TLC5947
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TLC5947 is an Arduino library for TLC5947 24 channel 12 bit PWM module.
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## Description
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This EXPERIMENTAL library allows easily control over a TLC5947 module.
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To communicate it uses three (bit banging) serial lines.
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This module provides in total 24 channels of 12 bit PWM.
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So it allows 4096 greyscales or levels to be set, making the output pretty well tunable.
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Main purpose is to drive LED's, see datasheet.
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The library is EXPERIMENTAL and needs more testing.
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(changes of the interface are definitely possible).
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#### Daisy chaining
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This library does **NOT** support daisy chaining yet.
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The current version can control only 1 module.
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To control multiple modules by giving them their own CLOCK line.
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The data and latch can be shared (to be tested).
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#### Links
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||||
- https://www.adafruit.com/product/1429
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- https://github.com/RobTillaart/TLC5947
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- https://github.com/RobTillaart/PCA9634 (I2C)
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- https://github.com/RobTillaart/PCA9635 (I2C)
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- https://github.com/RobTillaart/PCA9685 (I2C)
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## Interface
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```cpp
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#include TLC5947.h
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```
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- **TLC5947(uint8_t clock, uint8_t data, uint8_t latch, uint8_t blank)** constructor.
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Defines the pins used for uploading / writing the PWM data to the module.
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The blank pin is explained in more detail below.
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- **~TLC5947()** destructor
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- **bool begin()** set the pinModes of the pins and their initial values.
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- **void setPWM(uint8_t channel, uint16_t PWM)**. Writes a PWM value to the buffer to
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be written later.
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channel = 0..23, PWM = 0..4095
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- **void setAll(uint16_t PWM)** writes the same PWM value for all channels to the buffer.
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- **uint16_t getPWM(uint8_t channel)** get PWM value from the buffer,
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Note this value might differ from device when a new value is set after the last **write()**.
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- **void write()** writes the buffer (24 x 12 bit) to the device.
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#### Blank line
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The blank pin (line) is used to set all channels on or off.
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This allows to "preload" the registers with values and enable them all at once.
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- **void enable()** all channels reflect last updated PWM value.
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- **void disable()** all channels are off / 0.
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## Performance
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Writing 24 x 12 bit takes time, however is still pretty fast.
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On a 16 MHz UNO writing all 24 channels takes less than 4 milliseconds.
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Note that all channels must be written.
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| platform (MHz) | version | command | time (us) | notes |
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|:----------------:|:---------:|:----------|:------------|:-------------|
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||||
| AVR/UNO (16) | 0.1.0 | setPWM() | 16 | 24 channels |
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||||
| AVR/UNO (16) | 0.1.0 | write() | 3808 | 24 channels |
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||||
| ESP32 (240) | 0.1.0 | setPWM() | 6 | 24 channels |
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||||
| ESP32 (240) | 0.1.0 | write() | 128 | 24 channels |
|
||||
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||||
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||||
Measured with **TLC5947_performance.ino**.
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||||
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||||
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||||
## Future
|
||||
|
||||
#### Must
|
||||
|
||||
- update documentation
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||||
- links etc.
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- buy hardware
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||||
- test test test
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||||
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||||
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||||
#### Should
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||||
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||||
- add examples
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||||
- extend performance sketch
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- test if partial write (e.g. first N channels) works.
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- test "preloading" when module is disabled.
|
||||
- AVR optimized bit banging, see **fastShiftOut**
|
||||
- factor 2 - 4 could be achievable
|
||||
- "dirty" flag for **bool writePending()**?
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||||
- set by **setPWM()** if value changes.
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- would speed up unneeded **write()** too.
|
||||
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||||
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||||
#### Could
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||||
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||||
- add unit-tests
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||||
- add **void setPercentage(float perc)** and **float getPercentage()** wrappers.
|
||||
- investigate how to reduce memory usage (now 48 bytes)
|
||||
- could be 36 (12 bits / channel) or even 24 (8 bits/channel)
|
||||
- derived class?
|
||||
- add **setRGB(LED, R, G, B)** wrapper (channel 0..7)
|
||||
24 channels == 3 x 8 RGB LEDs
|
||||
- return value for **setPWM()** ?
|
||||
|
||||
|
||||
#### Won't
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||||
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||||
|
103
libraries/TLC5947/TLC5947.cpp
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103
libraries/TLC5947/TLC5947.cpp
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//
|
||||
// FILE: TLC5947.cpp
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||||
// AUTHOR: Rob Tillaart
|
||||
// VERSION: 0.1.0
|
||||
// DATE: 2023-06-17
|
||||
// PURPOSE: Arduino library for the TLC5947 24 channel PWM device
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||||
// URL: https://github.com/RobTillaart/TLC5947
|
||||
|
||||
|
||||
#include "TLC5947.h"
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|
||||
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||||
TLC5947::TLC5947(uint8_t clock, uint8_t data, uint8_t latch, uint8_t blank)
|
||||
{
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_clock = clock;
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||||
_data = data;
|
||||
_latch = latch;
|
||||
_blank = blank;
|
||||
_buffer = (uint16_t *) calloc(24, 2);
|
||||
}
|
||||
|
||||
|
||||
TLC5947::~TLC5947()
|
||||
{
|
||||
if(_buffer) free(_buffer);
|
||||
}
|
||||
|
||||
|
||||
void TLC5947::setPWM(uint8_t channel, uint16_t PWM)
|
||||
{
|
||||
_buffer[channel] = PWM > 4095 ? 4095 : PWM;
|
||||
}
|
||||
|
||||
|
||||
bool TLC5947::begin()
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||||
{
|
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pinMode(_clock, OUTPUT);
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pinMode(_data, OUTPUT);
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pinMode(_latch, OUTPUT);
|
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pinMode(_blank, OUTPUT);
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digitalWrite(_clock, LOW);
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digitalWrite(_data, LOW);
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digitalWrite(_latch, LOW);
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digitalWrite(_blank, HIGH); // enable PWM mode
|
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return true;
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||||
}
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||||
uint16_t TLC5947::getPWM(uint8_t channel)
|
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{
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if (channel >= 24) return 0xFFFF;
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return _buffer[channel] & 0x0FFF;
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}
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||||
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||||
|
||||
void TLC5947::setAll(uint16_t PWM)
|
||||
{
|
||||
uint16_t pwm = PWM > 4095 ? 4095 : PWM;
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for (int chan = 0; chan < 24; chan++)
|
||||
{
|
||||
_buffer[chan] = pwm;
|
||||
}
|
||||
write();
|
||||
}
|
||||
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||||
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||||
void TLC5947::write()
|
||||
{
|
||||
// also write when blank == LOW
|
||||
// to "preload the registers"
|
||||
// local vars to maximize speed.
|
||||
uint8_t _clk = _clock;
|
||||
uint8_t _dat = _data;
|
||||
|
||||
for (int chan = 23; chan >= 0; chan--)
|
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{
|
||||
for (int mask = 0x1000; mask; mask >>= 1)
|
||||
{
|
||||
digitalWrite(_clk, LOW);
|
||||
digitalWrite(_dat, _buffer[chan] & mask ? HIGH : LOW);
|
||||
digitalWrite(_clk, HIGH);
|
||||
}
|
||||
}
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||||
digitalWrite(_clk, LOW);
|
||||
// enable
|
||||
digitalWrite(_latch, HIGH);
|
||||
digitalWrite(_latch, LOW);
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||||
}
|
||||
|
||||
void TLC5947::enable()
|
||||
{
|
||||
digitalWrite(_blank, HIGH);
|
||||
}
|
||||
|
||||
|
||||
void TLC5947::disable()
|
||||
{
|
||||
digitalWrite(_blank, LOW);
|
||||
}
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
|
51
libraries/TLC5947/TLC5947.h
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51
libraries/TLC5947/TLC5947.h
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|
||||
#pragma once
|
||||
//
|
||||
// FILE: TLC5947.h
|
||||
// AUTHOR: Rob Tillaart
|
||||
// VERSION: 0.1.0
|
||||
// DATE: 2023-06-17
|
||||
// PURPOSE: Arduino library for the TLC5947 24 channel PWM device
|
||||
// URL: https://github.com/RobTillaart/TLC5947
|
||||
|
||||
|
||||
#define TLC5947_LIB_VERSION (F("0.1.0"))
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||||
|
||||
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||||
#include "Arduino.h"
|
||||
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||||
|
||||
#define TLC5947_MAX_CHANNELS 24
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||||
|
||||
|
||||
class TLC5947
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{
|
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public:
|
||||
TLC5947(uint8_t clock, uint8_t data, uint8_t latch, uint8_t blank);
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||||
~TLC5947();
|
||||
|
||||
bool begin();
|
||||
|
||||
// fill the buffer
|
||||
void setPWM(uint8_t channel, uint16_t PWM);
|
||||
void setAll(uint16_t PWM);
|
||||
// get from the buffer, might differ from device!
|
||||
uint16_t getPWM(uint8_t channel);
|
||||
|
||||
// write the buffer to the device
|
||||
void write();
|
||||
|
||||
// control the blank line.
|
||||
void enable();
|
||||
void disable();
|
||||
|
||||
private:
|
||||
uint16_t *_buffer;
|
||||
uint8_t _clock;
|
||||
uint8_t _data;
|
||||
uint8_t _latch;
|
||||
uint8_t _blank;
|
||||
};
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
|
48
libraries/TLC5947/examples/TLC5947_demo/TLC5947_demo.ino
Normal file
48
libraries/TLC5947/examples/TLC5947_demo/TLC5947_demo.ino
Normal file
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|
||||
//
|
||||
// FILE: TLC5947_demo.ino
|
||||
// AUTHOR: Rob Tillaart
|
||||
// PURPOSE: demo
|
||||
// URL: https://github.com/RobTillaart/TLC5947
|
||||
|
||||
|
||||
#include "TLC5947.h"
|
||||
|
||||
|
||||
TLC5947 tlc(13, 12, 11, 10);
|
||||
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(115200);
|
||||
Serial.println(__FILE__);
|
||||
Serial.print("TLC5947_LIB_VERSION: \t");
|
||||
Serial.println(TLC5947_LIB_VERSION);
|
||||
|
||||
if (tlc.begin() == false)
|
||||
{
|
||||
Serial.println("error");
|
||||
while(1);
|
||||
}
|
||||
|
||||
for (int ch = 0; ch < 24; ch++)
|
||||
{
|
||||
tlc.setPWM(ch, random(4096));
|
||||
}
|
||||
tlc.write();
|
||||
|
||||
delay(1000);
|
||||
tlc.disable();
|
||||
delay(1000);
|
||||
tlc.enable();
|
||||
|
||||
}
|
||||
|
||||
|
||||
void loop()
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
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@ -0,0 +1,65 @@
|
||||
//
|
||||
// FILE: TLC5947_performance.ino
|
||||
// AUTHOR: Rob Tillaart
|
||||
// PURPOSE: demo
|
||||
// URL: https://github.com/RobTillaart/TLC5947
|
||||
|
||||
|
||||
#include "TLC5947.h"
|
||||
|
||||
|
||||
TLC5947 tlc(13, 12, 11, 10);
|
||||
|
||||
uint32_t start, stop;
|
||||
|
||||
void setup()
|
||||
{
|
||||
Serial.begin(115200);
|
||||
Serial.println(__FILE__);
|
||||
Serial.print("TLC5947_LIB_VERSION: \t");
|
||||
Serial.println(TLC5947_LIB_VERSION);
|
||||
|
||||
if (tlc.begin() == false)
|
||||
{
|
||||
Serial.println("error");
|
||||
while (1);
|
||||
}
|
||||
|
||||
testSetPWM();
|
||||
testWrite();
|
||||
|
||||
Serial.println("\nDone...");
|
||||
}
|
||||
|
||||
|
||||
void loop()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
void testSetPWM()
|
||||
{
|
||||
delay(100);
|
||||
start = micros();
|
||||
for (int ch = 0; ch < 24; ch++)
|
||||
{
|
||||
tlc.setPWM(ch, 42);
|
||||
}
|
||||
stop = micros();
|
||||
Serial.print("SETPWM\t");
|
||||
Serial.println(stop - start);
|
||||
}
|
||||
|
||||
|
||||
void testWrite()
|
||||
{
|
||||
delay(100);
|
||||
start = micros();
|
||||
tlc.write();
|
||||
stop = micros();
|
||||
Serial.print("WRITE\t");
|
||||
Serial.println(stop - start);
|
||||
}
|
||||
|
||||
|
||||
// -- END OF FILE --
|
25
libraries/TLC5947/keywords.txt
Normal file
25
libraries/TLC5947/keywords.txt
Normal file
@ -0,0 +1,25 @@
|
||||
# Syntax Colouring Map For TLC5947
|
||||
|
||||
|
||||
# Data types (KEYWORD1)
|
||||
TLC5947 KEYWORD1
|
||||
|
||||
|
||||
# Methods and Functions (KEYWORD2)
|
||||
begin KEYWORD2
|
||||
|
||||
setPWM KEYWORD2
|
||||
getPWM KEYWORD2
|
||||
setAll KEYWORD2
|
||||
|
||||
enable KEYWORD2
|
||||
disable KEYWORD2
|
||||
|
||||
|
||||
# Instances (KEYWORD2)
|
||||
|
||||
|
||||
# Constants (LITERAL1)
|
||||
TLC5947_LIB_VERSION LITERAL1
|
||||
|
||||
|
23
libraries/TLC5947/library.json
Normal file
23
libraries/TLC5947/library.json
Normal file
@ -0,0 +1,23 @@
|
||||
{
|
||||
"name": "TLC5947",
|
||||
"keywords": "",
|
||||
"description": "Arduino library for TLC5947 24 channel 12 bit PWM.",
|
||||
"authors":
|
||||
[
|
||||
{
|
||||
"name": "Rob Tillaart",
|
||||
"email": "Rob.Tillaart@gmail.com",
|
||||
"maintainer": true
|
||||
}
|
||||
],
|
||||
"repository":
|
||||
{
|
||||
"type": "git",
|
||||
"url": "https://github.com/RobTillaart/TLC5947.git"
|
||||
},
|
||||
"version": "0.1.0",
|
||||
"license": "MIT",
|
||||
"frameworks": "arduino",
|
||||
"platforms": "*",
|
||||
"headers": "TLC5947.h"
|
||||
}
|
11
libraries/TLC5947/library.properties
Normal file
11
libraries/TLC5947/library.properties
Normal file
@ -0,0 +1,11 @@
|
||||
name=TLC5947
|
||||
version=0.1.0
|
||||
author=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
maintainer=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
sentence=Arduino library for TLC5947 24 channel 12 bit PWM.
|
||||
paragraph=
|
||||
category=Sensors
|
||||
url=https://github.com/RobTillaart/TLC5947
|
||||
architectures=*
|
||||
includes=TLC5947.h
|
||||
depends=
|
90
libraries/TLC5947/test/unit_test_001.cpp
Normal file
90
libraries/TLC5947/test/unit_test_001.cpp
Normal file
@ -0,0 +1,90 @@
|
||||
//
|
||||
// FILE: unit_test_001.cpp
|
||||
// AUTHOR: Rob Tillaart
|
||||
// DATE: 2023-06-17
|
||||
// PURPOSE: unit tests for the TLC5947 library
|
||||
// https://github.com/RobTillaart/TLC5947
|
||||
// https://github.com/Arduino-CI/arduino_ci/blob/master/REFERENCE.md
|
||||
//
|
||||
|
||||
// supported assertions
|
||||
// ----------------------------
|
||||
// assertEqual(expected, actual); // a == b
|
||||
// assertNotEqual(unwanted, actual); // a != b
|
||||
// assertComparativeEquivalent(expected, actual); // abs(a - b) == 0 or (!(a > b) && !(a < b))
|
||||
// assertComparativeNotEquivalent(unwanted, actual); // abs(a - b) > 0 or ((a > b) || (a < b))
|
||||
// assertLess(upperBound, actual); // a < b
|
||||
// assertMore(lowerBound, actual); // a > b
|
||||
// assertLessOrEqual(upperBound, actual); // a <= b
|
||||
// assertMoreOrEqual(lowerBound, actual); // a >= b
|
||||
// assertTrue(actual);
|
||||
// assertFalse(actual);
|
||||
// assertNull(actual);
|
||||
|
||||
// // special cases for floats
|
||||
// assertEqualFloat(expected, actual, epsilon); // fabs(a - b) <= epsilon
|
||||
// assertNotEqualFloat(unwanted, actual, epsilon); // fabs(a - b) >= epsilon
|
||||
// assertInfinity(actual); // isinf(a)
|
||||
// assertNotInfinity(actual); // !isinf(a)
|
||||
// assertNAN(arg); // isnan(a)
|
||||
// assertNotNAN(arg); // !isnan(a)
|
||||
|
||||
|
||||
#include <ArduinoUnitTests.h>
|
||||
|
||||
|
||||
#include "Arduino.h"
|
||||
#include "TLC5947.h"
|
||||
|
||||
|
||||
|
||||
unittest_setup()
|
||||
{
|
||||
fprintf(stderr, "TLC5947_LIB_VERSION: %s\n", (char *) TLC5947_LIB_VERSION);
|
||||
}
|
||||
|
||||
|
||||
unittest_teardown()
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
unittest(test_begin)
|
||||
{
|
||||
TLC5947 tlc(13, 12, 11, 10);
|
||||
|
||||
assertTrue(tlc.begin());
|
||||
}
|
||||
|
||||
|
||||
unittest(test_setPWM_I)
|
||||
{
|
||||
TLC5947 tlc(13, 12, 11, 10);
|
||||
tlc.begin();
|
||||
|
||||
for (uint8_t chan = 0; chan < 24; chan++)
|
||||
{
|
||||
tlc.setPWM(chan, chan * 170);
|
||||
assertEqual(tlc.getPWM(chan), chan * 170);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
unittest(test_setPWM_II)
|
||||
{
|
||||
TLC5947 tlc(13, 12, 11, 10);
|
||||
tlc.begin();
|
||||
|
||||
tlc.setAll(421);
|
||||
for (uint8_t chan = 0; chan < 24; chan++)
|
||||
{
|
||||
assertEqual(tlc.getPWM(chan), 421);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
unittest_main()
|
||||
|
||||
|
||||
// -- END OF FILE --
|
||||
|
Loading…
Reference in New Issue
Block a user