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0.2.5 PCA9634
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@ -6,7 +6,7 @@ jobs:
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lint:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/checkout@v3
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- uses: arduino/arduino-lint-action@v1
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with:
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library-manager: update
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@ -8,7 +8,7 @@ jobs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- 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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@ -10,7 +10,7 @@ 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@v2
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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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@ -6,12 +6,17 @@ 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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## [0.2.5] - 2023-01-19
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- fix #22 update readme.md
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- update GitHub actions
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- update license
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- minor edits (comments)
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## [0.2.4] - 2022-11-19
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- add RP2040 in build-CI
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- add changelog.md
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## [0.2.3] - 2022-09-11
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- update documentation
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- fix begin() for ESP32 ambiguity - See PCA9635 #17
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@ -32,11 +37,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
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----
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## [0.1.2] - 2022-04-13
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## [0.1.2] - 2022-04-13
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- issue #7 add constants and functions for mode registers.
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## [0.1.1] - 2022-01-04
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- minor fixes
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## [0.1.1] - 2022-01-04
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- minor fixes
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## [0.1.0] - 2022-01-03
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- initial version -- based upon 0.3.2 PCA9635
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@ -1,6 +1,6 @@
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MIT License
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Copyright (c) 2022-2022 Rob Tillaart
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Copyright (c) 2022-2023 Rob Tillaart
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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
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@ -1,8 +1,8 @@
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//
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// FILE: PCA9634.cpp
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// AUTHOR: Rob Tillaart
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// DATE: 03-01-2022
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// VERSION: 0.2.4
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// DATE: 2022-01-03
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// VERSION: 0.2.5
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// PURPOSE: Arduino library for PCA9634 I2C LED driver
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// URL: https://github.com/RobTillaart/PCA9634
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@ -66,15 +66,15 @@ void PCA9634::configure(uint8_t mode1_mask, uint8_t mode2_mask)
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}
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// write value to single PWM registers
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// write value to single PWM registers
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uint8_t PCA9634::write1(uint8_t channel, uint8_t value)
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{
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return writeN(channel, &value, 1);
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}
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// write three values in consecutive PWM registers
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// typically for RGB values
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// write three values in consecutive PWM registers
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// typically for RGB values
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uint8_t PCA9634::write3(uint8_t channel, uint8_t R, uint8_t G, uint8_t B)
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{
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uint8_t arr[3] = { R, G, B };
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@ -82,8 +82,8 @@ uint8_t PCA9634::write3(uint8_t channel, uint8_t R, uint8_t G, uint8_t B)
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}
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// write count values in consecutive PWM registers
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// checks if [channel + count - 1 > 8]
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// write count values in consecutive PWM registers
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// checks if [channel + count - 1 > 8]
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uint8_t PCA9634::writeN(uint8_t channel, uint8_t* arr, uint8_t count)
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{
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if (channel + count > _channelCount)
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@ -108,6 +108,37 @@ uint8_t PCA9634::writeN(uint8_t channel, uint8_t* arr, uint8_t count)
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}
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uint8_t PCA9634::writeN_noStop(uint8_t channel, uint8_t* arr, uint8_t count)
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{
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if (channel + count > _channelCount)
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{
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_error = PCA9634_ERR_WRITE;
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return PCA9634_ERROR;
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}
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uint8_t base = PCA9634_PWM(channel);
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_wire->beginTransmission(_address);
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_wire->write(base);
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for(uint8_t i = 0; i < count; i++)
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{
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_wire->write(arr[i]);
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}
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// OK so far
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return PCA9634_OK;
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}
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uint8_t PCA9634::writeStop()
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{
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_error = _wire->endTransmission();
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if (_error != 0)
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{
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_error = PCA9634_ERR_I2C;
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return PCA9634_ERROR;
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}
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return PCA9634_OK;
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}
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uint8_t PCA9634::writeMode(uint8_t reg, uint8_t value)
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{
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if ((reg == PCA9634_MODE1) || (reg == PCA9634_MODE2))
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@ -120,7 +151,7 @@ uint8_t PCA9634::writeMode(uint8_t reg, uint8_t value)
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}
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// Note 0xFF can also mean an error.... check error flag..
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// Note 0xFF can also mean an error.... ==> check error flag.
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uint8_t PCA9634::readMode(uint8_t reg)
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{
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if ((reg == PCA9634_MODE1) || (reg == PCA9634_MODE2))
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@ -148,8 +179,8 @@ uint8_t PCA9634::setLedDriverMode(uint8_t channel, uint8_t mode)
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}
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uint8_t reg = PCA9634_LEDOUT_BASE + (channel >> 2);
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// some bit magic
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uint8_t shift = (channel & 0x03) * 2; // 0,2,4,6 places
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// some bit magic
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uint8_t shift = (channel & 0x03) * 2; // 0, 2, 4, 6 places
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uint8_t setmask = mode << shift;
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uint8_t clrmask = ~(0x03 << shift);
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uint8_t value = (readReg(reg) & clrmask) | setmask;
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@ -158,7 +189,7 @@ uint8_t PCA9634::setLedDriverMode(uint8_t channel, uint8_t mode)
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}
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// returns 0..3 if OK, other values indicate an error
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// returns 0..3 if OK, other values indicate an error
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uint8_t PCA9634::getLedDriverMode(uint8_t channel)
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{
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if (channel >= _channelCount)
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@ -168,13 +199,13 @@ uint8_t PCA9634::getLedDriverMode(uint8_t channel)
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}
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uint8_t reg = PCA9634_LEDOUT_BASE + (channel >> 2);
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uint8_t shift = (channel & 0x03) * 2; // 0,2,4,6 places
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uint8_t shift = (channel & 0x03) * 2; // 0, 2, 4, 6 places
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uint8_t value = (readReg(reg) >> shift ) & 0x03;
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return value;
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}
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// note error flag is set to PCA9634_OK after read!
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// note error flag is set to PCA9634_OK after read!
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int PCA9634::lastError()
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{
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int e = _error;
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@ -186,7 +217,7 @@ int PCA9634::lastError()
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/////////////////////////////////////////////////////
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//
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// SUB CALL - ALL CALL
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// SUB CALL - ALL CALL
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//
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bool PCA9634::enableSubCall(uint8_t nr)
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{
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@ -310,7 +341,7 @@ int PCA9634::I2C_SoftwareReset(uint8_t method)
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/////////////////////////////////////////////////////
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//
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// PRIVATE
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// PRIVATE
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//
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uint8_t PCA9634::writeReg(uint8_t reg, uint8_t value)
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{
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@ -340,5 +371,5 @@ uint8_t PCA9634::readReg(uint8_t reg)
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}
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// -- END OF FILE --
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// -- END OF FILE --
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@ -2,8 +2,8 @@
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//
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// FILE: PCA9634.h
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// AUTHOR: Rob Tillaart
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// DATE: 03-01-2022
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// VERSION: 0.2.4
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// DATE: 2022-01-03
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// VERSION: 0.2.5
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// PURPOSE: Arduino library for PCA9634 I2C LED driver, 8 channel
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// URL: https://github.com/RobTillaart/PCA9634
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@ -12,7 +12,7 @@
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#include "Wire.h"
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#define PCA9634_LIB_VERSION (F("0.2.4"))
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#define PCA9634_LIB_VERSION (F("0.2.5"))
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#define PCA9634_MODE1 0x00
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#define PCA9634_MODE2 0x01
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@ -24,7 +24,7 @@
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#define PCA9634_GRPPWM 0x0A
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#define PCA9634_GRPFREQ 0x0B
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// check datasheet for details
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// check datasheet for details
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#define PCA9634_LEDOUT_BASE 0x0C // 0x0C..0x0D
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#define PCA9634_LEDOFF 0x00 // default @ startup
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#define PCA9634_LEDON 0x01
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@ -59,10 +59,18 @@
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#define PCA9634_MODE2_TOTEMPOLE 0x04 // 0 = open drain 1 = totem-pole
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#define PCA9634_MODE2_NONE 0x00
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// (since 0.2.0)
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// Registers in which the ALLCALL and sub-addresses are stored
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#define PCA9634_SUBADR(x) (0x0D +(x)) // x = 1..3
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#define PCA9634_ALLCALLADR 0x11
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// Standard ALLCALL and sub-addresses --> only work for write commands and NOT for read commands
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#define PCA9634_ALLCALL 0x70 // TDS of chip says 0xE0, however,
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// in this library the LSB is added during the write command
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// (0xE0 --> 0b11100000, 0x70 --> 0b1110000)
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#define PCA9634_SUB1 0x71 // see line above (0xE2 --> 0x71)
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#define PCA9634_SUB2 0x72 // see line above (0xE4 --> 0x72)
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#define PCA9634_SUB3 0x74 // see line above (0xE8 --> 0x74)
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class PCA9634
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{
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@ -70,11 +78,11 @@ public:
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explicit PCA9634(const uint8_t deviceAddress, TwoWire *wire = &Wire);
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#if defined (ESP8266) || defined(ESP32)
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bool begin(int sda, int scl,
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uint8_t mode1_mask = PCA9634_MODE1_ALLCALL,
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bool begin(int sda, int scl,
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uint8_t mode1_mask = PCA9634_MODE1_ALLCALL,
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uint8_t mode2_mask = PCA9634_MODE2_NONE);
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#endif
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bool begin(uint8_t mode1_mask = PCA9634_MODE1_ALLCALL,
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bool begin(uint8_t mode1_mask = PCA9634_MODE1_ALLCALL,
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uint8_t mode2_mask = PCA9634_MODE2_NONE);
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void configure(uint8_t mode1_mask, uint8_t mode2_mask);
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bool isConnected();
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@ -93,10 +101,16 @@ public:
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// generic worker, write N consecutive PWM registers
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uint8_t writeN(uint8_t channel, uint8_t* arr, uint8_t count);
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// generic worker, write N consecutive PWM registers without Stop command
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uint8_t writeN_noStop(uint8_t channel, uint8_t* arr, uint8_t count);
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// write stop command to end transmission
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uint8_t writeStop();
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// reg = 1, 2 check datasheet for values
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uint8_t writeMode(uint8_t reg, uint8_t value);
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uint8_t readMode(uint8_t reg);
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// convenience wrappers
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// convenience wrappers
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uint8_t setMode1(uint8_t value) { return writeMode(PCA9634_MODE1, value); };
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uint8_t setMode2(uint8_t value) { return writeMode(PCA9634_MODE2, value); };
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uint8_t getMode1() { return readMode(PCA9634_MODE1); };
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@ -113,6 +127,7 @@ public:
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int lastError();
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/////////////////////////////////////////////////////
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//
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// SUB CALL - ALL CALL (since 0.2.0)
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@ -16,7 +16,7 @@ Arduino library for PCA9634 I2C 8 bit PWM LED driver, 8 channel.
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This library is to control the I2C PCA9634 PWM extender.
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The 8 channels are independently configurable in steps of 1/256.
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this allows for better than 1% fine tuning of the duty-cycle
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of the PWM signal.
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of the PWM signal.
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library is a 8 channel derived variation of the PCA9635 class.
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(these might merge in the future)
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@ -27,15 +27,15 @@ library is a 8 channel derived variation of the PCA9635 class.
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### Constructor
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- **PCA9634(uint8_t deviceAddress, TwoWire \*wire = &Wire)** Constructor with I2C device address,
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- **PCA9634(uint8_t deviceAddress, TwoWire \*wire = &Wire)** Constructor with I2C device address,
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and optional the Wire interface as parameter.
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- **bool begin(uint8_t mode1_mask = PCA9634_MODE1_ALLCALL, uint8_t mode2_mask = PCA9634_MODE2_NONE)**
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initializes the library after startup. Optionally setting the MODE1 and MODE2 configuration registers.
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- **bool begin(uint8_t mode1_mask = PCA9634_MODE1_ALLCALL, uint8_t mode2_mask = PCA9634_MODE2_NONE)**
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initializes the library after startup. Optionally setting the MODE1 and MODE2 configuration registers.
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See PCA9634.h and datasheet for settings possible.
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- **bool begin(int sda, int scl, uint8_t mode1_mask = PCA9634_MODE1_ALLCALL, uint8_t mode2_mask = PCA9634_MODE2_NONE)**
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idem, ESP32 ESP8266 only.
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- **void configure(uint8_t mode1_mask, uint8_t mode2_mask)**
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To configure the library after startup one can set the MODE1 and MODE2 configuration registers.
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- **bool begin(int sda, int scl, uint8_t mode1_mask = PCA9634_MODE1_ALLCALL, uint8_t mode2_mask = PCA9634_MODE2_NONE)**
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idem, ESP32 ESP8266 only.
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- **void configure(uint8_t mode1_mask, uint8_t mode2_mask)**
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To configure the library after startup one can set the MODE1 and MODE2 configuration registers.
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See PCA9634.h and datasheet for settings possible.
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- **bool isConnected()** checks if address is visible on I2C bus.
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- **uint8_t channelCount()** returns the number of channels = 8.
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@ -55,22 +55,23 @@ Configure LED behaviour.
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| PCA9634_LEDPWM | 0x02 | set LED in PWM mode, 0..255 |
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| PCA9634_LEDGRPPWM | 0x03 | add LED to the GRPPWM* |
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\* all LEDs in the group GRPPWM can be set to the same PWM value in one set.
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This is ideal to trigger e.g. multiple LEDs (servo's) at same time.
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### Read and write
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Read and write individual values to LED channels.
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Read and write individual values to LED channels.
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Requires LEDs' DriverMode of the specific channels to be in PWM mode.
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- **uint8_t write1(uint8_t channel, uint8_t value)** writes a single 8 bit PWM value.
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- **uint8_t write3(uint8_t channel, uint8_t R, uint8_t G, uint8_t B)**
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- **uint8_t write3(uint8_t channel, uint8_t R, uint8_t G, uint8_t B)**
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writes three consecutive PWM registers.
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typical use is to write R, G, B values for a full colour LED.
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- **uint8_t writeN(uint8_t channel, uint8_t \* array, uint8_t count)**
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write count consecutive PWM registers.
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May return **PCA9634_ERR_WRITE** if array has too many elements
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- **uint8_t writeN(uint8_t channel, uint8_t \* array, uint8_t count)**
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write count consecutive PWM registers.
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May return **PCA9634_ERR_WRITE** if array has too many elements
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(including channel as offset).
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@ -80,7 +81,7 @@ Used to configure the PCA963x general behaviour.
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- **uint8_t writeMode(uint8_t reg, uint8_t value)** configuration of one of the two configuration registers.
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Check datasheet for details.
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- **uint8_t readMode(uint8_t reg)** reads back the configured mode,
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- **uint8_t readMode(uint8_t reg)** reads back the configured mode,
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useful to add or remove a single flag (bit masking).
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- **uint8_t setMode1(uint8_t value)** convenience wrapper.
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- **uint8_t setMode2(uint8_t value)** convenience wrapper.
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@ -103,13 +104,14 @@ useful to add or remove a single flag (bit masking).
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| PCA9634_MODE1_SUB3 | 0x02 | 0 = disable 1 = enable |
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| PCA9634_MODE1_ALLCALL | 0x01 | 0 = disable 1 = enable |
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| PCA9634_MODE1_NONE | 0x00 | |
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| | | |
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| ---- | | |
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| PCA9634_MODE2_BLINK | 0x20 | 0 = dim 1 = blink |
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| PCA9634_MODE2_INVERT | 0x10 | 0 = normal 1 = inverted |
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| PCA9634_MODE2_STOP | 0x08 | 0 = on STOP 1 = on ACK |
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| PCA9634_MODE2_TOTEMPOLE | 0x04 | 0 = open drain 1 = totem-pole |
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| PCA9634_MODE2_NONE | 0x00 | |
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These constants makes it easier to set modes without using a non descriptive
|
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bit mask. The constants can be merged by OR-ing them together, see snippet:
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@ -134,8 +136,8 @@ Check datasheet for the details.
|
||||
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- **void setGroupPWM(uint8_t value)** sets all channels that are part of the PWM group to value.
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- **uint8_t getGroupPWM()** get the current PWM setting of the group.
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- **void setGroupFREQ(uint8_t value)** is used for blinking the group of configured LED.
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Value goes from 0 to 255 with each step representing an increase of approx. 41 ms.
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- **void setGroupFREQ(uint8_t value)** is used for blinking the group of configured LED.
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Value goes from 0 to 255 with each step representing an increase of approx. 41 ms.
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So 0x00 results in 41 ms blinking period (on AND off) and 0xFF in approx. 10.5 s.
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- **uint8_t getGroupFREQ()** returns the set frequency of the PWM group.
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@ -164,13 +166,14 @@ It needs more testing and if there are issues, please report.
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AllCall is automatically activated for each device on startup.
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||||
|
||||
#### Description
|
||||
|
||||
**SUB CALL** allows one to make groups of PCA9634 devices and control them on group level.
|
||||
The number of groups one can make depends on free I2C addresses on one I2C bus.
|
||||
Using multiple I2C buses or multiplexers will even increase the possible number.
|
||||
Every PCA9634 device can be member of up to three of these groups.
|
||||
To become member one needs to set the **setSubCallAddress(nr, address)** and enable
|
||||
Using multiple I2C buses or multiplexers will even increase the possible number.
|
||||
Every PCA9634 device can be member of up to three of these groups.
|
||||
To become member one needs to set the **setSubCallAddress(nr, address)** and enable
|
||||
it with **enableSubCall(nr)**.
|
||||
|
||||
In the same way one can become member of an **ALL CALL** group.
|
||||
@ -196,26 +199,26 @@ The functions to enable all/sub-addresses are straightforward:
|
||||
|
||||
### I2C Software reset
|
||||
|
||||
The goal of this function is to reset ALL PCA9634 devices on the bus.
|
||||
The goal of this function is to reset ALL PCA9634 devices on the bus.
|
||||
When using the software reset, ALL devices attached to the bus are set to their hardware startup conditions.
|
||||
Generally, there are multiple definitions of software resets by the I²C inventor NXP.
|
||||
Generally, there are multiple definitions of software resets by the I²C inventor NXP.
|
||||
To accommodate this, two different modes for this function have been defined and tested (library version 0.2.2).
|
||||
|
||||
- Method 1 is a tested method which is specific to the PCA9634.
|
||||
Since the number of different types of I²C chips is very large, side-effects on other chips might be possible.
|
||||
Since the number of different types of I²C chips is very large, side-effects on other chips might be possible.
|
||||
Before using this method, consult the data sheets of all chips on the bus to mitigate potential undefined states.
|
||||
- Method 0 is a somewhat “general” method which resets many chips on the I²C-bus.
|
||||
However, this method DOES NOT reset the PCA9634 chip.
|
||||
- Method 0 is a somewhat “general” method which resets many chips on the I²C-bus.
|
||||
However, this method DOES NOT reset the PCA9634 chip.
|
||||
Therefore, consult the data sheet of all different chips on the bus to mitigate potential undefined states.
|
||||
|
||||
When only working with PCA9634 chips on a bus, only method 1 is required.
|
||||
|
||||
```cpp
|
||||
ledArray.I2C_SoftwareReset(1); // for method 1
|
||||
ledArray.I2C_SoftwareReset(0); // for method 0
|
||||
ledArray.I2C_SoftwareReset(1); // for method 1
|
||||
ledArray.I2C_SoftwareReset(0); // for method 0
|
||||
```
|
||||
|
||||
In case you experience issues with this function on your chips (non-PCA9634),
|
||||
In case you experience issues with this function on your chips (non-PCA9634),
|
||||
please give feedback, so the documentation can be improved.
|
||||
|
||||
For further details of the development, see - #10 (comment)
|
||||
@ -228,16 +231,21 @@ See examples
|
||||
|
||||
## Future
|
||||
|
||||
#### must
|
||||
#### Must
|
||||
|
||||
- improve documentation
|
||||
|
||||
#### should
|
||||
#### Should
|
||||
|
||||
- unit tests
|
||||
- SUB CALL if possible?
|
||||
- ALL CALL if possible?
|
||||
- add examples
|
||||
|
||||
#### could
|
||||
|
||||
#### Could
|
||||
|
||||
- move code from .h to .cpp
|
||||
- sync with PCA9635 developments
|
||||
- merge with PCA9635 and a PCA963X base class if possible
|
||||
|
||||
|
@ -15,7 +15,7 @@
|
||||
"type": "git",
|
||||
"url": "https://github.com/RobTillaart/PCA9634.git"
|
||||
},
|
||||
"version": "0.2.4",
|
||||
"version": "0.2.5",
|
||||
"license": "MIT",
|
||||
"frameworks": "arduino",
|
||||
"platforms": "*",
|
||||
|
@ -1,5 +1,5 @@
|
||||
name=PCA9634
|
||||
version=0.2.4
|
||||
version=0.2.5
|
||||
author=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
maintainer=Rob Tillaart <rob.tillaart@gmail.com>
|
||||
sentence=Arduino library for PCA9634 I2C LED driver 8 channel
|
||||
|
@ -94,4 +94,5 @@ unittest(test_LedDriverMode)
|
||||
|
||||
unittest_main()
|
||||
|
||||
// --------
|
||||
// -- END OF FILE --
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user