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Commit8105af6

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library: add RGB LED TLC59731
Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
1 parentbb11ba8 commit8105af6

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/*
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RGB_LED_TLC59731
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This example code is in the public domain.
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Blink one RGB LED with different default colors:
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RGB_LED_TLC59731::OFF
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RGB_LED_TLC59731::RED
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RGB_LED_TLC59731::GREEN
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RGB_LED_TLC59731::BLUE
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RGB_LED_TLC59731::MAGENTA
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RGB_LED_TLC59731::CYAN
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RGB_LED_TLC59731::YELLOW
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RGB_LED_TLC59731::WHITE
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*/
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#include<RGB_LED_TLC59731.h>
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staticuint8_t step =1;
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/**
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STM32WB5MM-DK have an RGB LED connected to TLC59731
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It requires to enable it thanks LED_SELECT pin
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and to have JP5 on and JP4 off
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*/
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#if defined(RGB_LED) && defined(LED_SELECT)
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RGB_LED_TLC59731LED(RGB_LED, LED_SELECT);
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#else
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RGB_LED_TLC59731LED();
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#endif
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voidsetup() {
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/* Change default brightness*/
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LED.setBrightness(0x10);
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}
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voidloop() {
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uint8_t *color = RGB_LED_TLC59731::OFF;
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switch (step) {
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case1:
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color = RGB_LED_TLC59731::RED;
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break;
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case2:
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color = RGB_LED_TLC59731::GREEN;
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break;
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case4:
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color = RGB_LED_TLC59731::BLUE;
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break;
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case8:
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color = RGB_LED_TLC59731::MAGENTA;
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break;
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case16:
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color = RGB_LED_TLC59731::CYAN;
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break;
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case32:
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color = RGB_LED_TLC59731::YELLOW;
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break;
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case64:
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color = RGB_LED_TLC59731::WHITE;
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break;
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default:
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color = RGB_LED_TLC59731::OFF;
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break;
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}
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/* Blink*/
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LED.on(color);
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delay(500);
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LED.off();
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delay(500);
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step = (step ==64) ?1 : step *2;
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}
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#######################################
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# Syntax Coloring Map For RGB_LED_TLC59731
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#######################################
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#######################################
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# Datatypes (KEYWORD1)
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#######################################
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RGB_LED_TLC59731KEYWORD1
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#######################################
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# Methods and Functions (KEYWORD2)
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#######################################
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onKEYWORD2
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offKEYWORD2
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getBrightnessKEYWORD2
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setBrightnessKEYWORD2
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#######################################
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# Constants (LITERAL1)
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#######################################
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OFFLITERAL1
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REDLITERAL1
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GREENLITERAL1
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BLUELITERAL1
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MAGENTALITERAL1
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CYANLITERAL1
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YELLOWLITERAL1
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WHITELITERAL
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name=RGB LED TLC59731
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version=1.0.0
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author=Frederic Pillon
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maintainer=stm32duino
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sentence=Allows to control one RGB LED driven by TLC59731 PWM LED Driver
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paragraph=Control one RGB LED driven by TLC59731 PWM LED Driver
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category=Signal Input/Output
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url=https://github.com/stm32duino/Arduino_Core_STM32/tree/master/libraries/RGB_LED_TLC59731
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architectures=stm32
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/*
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*******************************************************************************
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* Copyright (c) 2021, STMicroelectronics
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* All rights reserved.
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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*******************************************************************************
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*/
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#include"RGB_LED_TLC59731.h"
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#defineWRITE_COMMAND0x3A
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#ifndef DEFAULT_BRIGHTNESS
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#defineDEFAULT_BRIGHTNESS0x41
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#endif
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uint8_t RGB_LED_TLC59731::brightness = DEFAULT_BRIGHTNESS;
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uint8_t RGB_LED_TLC59731::OFF[3] = {0,0,0 };
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uint8_t RGB_LED_TLC59731::RED[3] = {DEFAULT_BRIGHTNESS,0,0 };
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uint8_t RGB_LED_TLC59731::GREEN[3] = {0, DEFAULT_BRIGHTNESS,0 };
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uint8_t RGB_LED_TLC59731::BLUE[3] = {0,0, DEFAULT_BRIGHTNESS};
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uint8_t RGB_LED_TLC59731::MAGENTA[3] = {DEFAULT_BRIGHTNESS,0, DEFAULT_BRIGHTNESS};
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uint8_t RGB_LED_TLC59731::CYAN[3] = {0, DEFAULT_BRIGHTNESS, DEFAULT_BRIGHTNESS};
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uint8_t RGB_LED_TLC59731::YELLOW[3] = {DEFAULT_BRIGHTNESS, DEFAULT_BRIGHTNESS,0 };
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uint8_t RGB_LED_TLC59731::WHITE[3] = {DEFAULT_BRIGHTNESS, DEFAULT_BRIGHTNESS, DEFAULT_BRIGHTNESS};
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/**
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* @brief Set RGB LED color
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* @param rgb[3]: red,green, blue value in range [0-255]
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* @retval None
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*/
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voidRGB_LED_TLC59731::on(uint8_t rgb[3])
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{
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on(rgb[0], rgb[1], rgb[2]);
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}
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/**
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* @brief Set RGB LED color
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* @param red: red value in range [0-255]
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* @param green: green value in range [0-255]
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* @param blue: blue value in range [0-255]
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* @retval None
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*/
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voidRGB_LED_TLC59731::on(uint8_t red,uint8_t green,uint8_t blue)
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{
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if (!_enabled) {
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if (_enable_pin != NC) {
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pinMode(pinNametoDigitalPin(_enable_pin), OUTPUT);
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digitalWriteFast(_enable_pin, HIGH);
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}
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pinMode(pinNametoDigitalPin(_rgb_pin), OUTPUT);
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_enabled =true;
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}
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/* Data Transfer Rate (T_CYCLE) Measurement Sequence*/
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digitalWriteFast(_rgb_pin, HIGH);
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delayMicroseconds(_T_Rise);
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digitalWriteFast(_rgb_pin, LOW);
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delayMicroseconds(_T_Cycle0);
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/* Write command*/
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senByte(WRITE_COMMAND);
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/* Write the GS data*/
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senByte(red);
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senByte(green);
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senByte(blue);
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/* GS Latch*/
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delayMicroseconds(_T_GS_Lat);
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}
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/**
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* @brief Set RGB LED Off
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* @param None
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* @retval None
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*/
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voidRGB_LED_TLC59731::off(void)
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{
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/* Set RGB LED off value*/
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on(RGB_LED_TLC59731::OFF);
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pinMode(pinNametoDigitalPin(_rgb_pin), INPUT_ANALOG);
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if (_enable_pin != NC) {
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digitalWriteFast(_enable_pin, LOW);
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pinMode(pinNametoDigitalPin(_enable_pin), INPUT_ANALOG);
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_enabled =false;
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}
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}
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/**
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* @brief Set brightness value
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* @param value: new brightness value
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* @retval None
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*/
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voidRGB_LED_TLC59731::setBrightness(uint8_t value)
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{
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RGB_LED_TLC59731::brightness = value;
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RGB_LED_TLC59731::RED[0] = value;
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RGB_LED_TLC59731::GREEN[1] = value;
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RGB_LED_TLC59731::BLUE[2] = value;
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RGB_LED_TLC59731::MAGENTA[0] = value;
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RGB_LED_TLC59731::MAGENTA[2] = value;
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RGB_LED_TLC59731::CYAN[1] = value;
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RGB_LED_TLC59731::CYAN[2] = value;
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RGB_LED_TLC59731::YELLOW[0] = value;
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RGB_LED_TLC59731::YELLOW[1] = value;
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RGB_LED_TLC59731::WHITE[0] = value;
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RGB_LED_TLC59731::WHITE[1] = value;
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RGB_LED_TLC59731::WHITE[2] = value;
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}
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/* Private*/
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voidRGB_LED_TLC59731::sendBit(uint8_t bit)
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{
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/* Start next cycle*/
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digitalWriteFast(_rgb_pin, HIGH);
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delayMicroseconds(_T_Rise);
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digitalWriteFast(_rgb_pin, LOW);
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delayMicroseconds(_T_Rise);
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if (bit) {
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digitalWriteFast(_rgb_pin, HIGH);
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delayMicroseconds(_T_Rise);
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digitalWriteFast(_rgb_pin, LOW);
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delayMicroseconds(_T_Cycle1);
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}else {
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delayMicroseconds(_T_Cycle0);
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}
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}
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voidRGB_LED_TLC59731::senByte(uint8_t byte)
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{
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sendBit(byte & (1 <<7));
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sendBit(byte & (1 <<6));
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sendBit(byte & (1 <<5));
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sendBit(byte & (1 <<4));
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sendBit(byte & (1 <<3));
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sendBit(byte & (1 <<2));
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sendBit(byte & (1 <<1));
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sendBit(byte & (1 <<0));
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}
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/*
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*******************************************************************************
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* Copyright (c) 2021, STMicroelectronics
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* All rights reserved.
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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*******************************************************************************
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*/
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#ifndef __RGB_LED_TLC59731_H__
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#define__RGB_LED_TLC59731_H__
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#include"Arduino.h"
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classRGB_LED_TLC59731 {
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public:
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RGB_LED_TLC59731(uint32_t rgb_pin = LED_BUILTIN,uint32_t enable_pin = NC):
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_rgb_pin(digitalPinToPinName(rgb_pin)), _enable_pin(digitalPinToPinName(enable_pin)) {};
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voidon(uint8_t rgb[3]);
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voidon(uint8_t red,uint8_t green,uint8_t blue);
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voidoff(void);
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inlineuint8_tgetBrightness(void)
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{
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return brightness;
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}
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voidsetBrightness(uint8_t value);
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staticuint8_t brightness;
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staticuint8_t OFF[3];
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staticuint8_t RED[3];
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staticuint8_t GREEN[3];
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staticuint8_t BLUE[3];
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staticuint8_t MAGENTA[3];
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staticuint8_t CYAN[3];
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staticuint8_t YELLOW[3];
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staticuint8_t WHITE[3];
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private:
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PinName _rgb_pin;
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PinName _enable_pin;
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bool _enabled{false};
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constuint32_t _T_Rise{1};
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constuint32_t _T_Cycle0{4};
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constuint32_t _T_Cycle1{1};
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// GS Data Latch (GSLAT) Sequence delay
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constuint32_t _T_GS_Lat{_T_Cycle0 *8};
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voidsendBit(uint8_t bit);
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voidsenByte(uint8_t byte);
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};
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// extern IWatchdogClass IWatchdog;
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#endif/* __RGB_LED_TLC59731_H__*/

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