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0.1.3 TCA9555
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libraries/TCA9555/CHANGELOG.md
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libraries/TCA9555/CHANGELOG.md
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# Change Log TCA9555
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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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## [0.1.3] - 2022-11-25
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- Add RP2040 support to build-CI.
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- Add CHANGELOG.md
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- update readme.md
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## [0.1.2] - 2021-12-28
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- update Arduino-CI
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- update readme.md
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- update license
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- minor edits
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## [0.1.1] - 2021-06-10
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- add 16 bit interface
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## [0.1.0] - 2021-06-09
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- initial version
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@ -107,14 +107,17 @@ See examples
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#### Must
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- buy TCA9555 / TCA9535
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- test all functionality (initial version is written with no hardware around)
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- add TCA9535 error codes
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#### Should
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- INPUT_PULLUP mappen op INPUT (pinMode ?)
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- investigate internal pull up etc.
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- add TCA9535 error codes
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- investigate TCA9535 differences
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- elaborate derived class
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#### Could
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- rethink class hierarchy
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- buy TCA9555 / TCA9535
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- rethink class hierarchy?
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- investigate internal pull up etc.
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@ -1,28 +1,23 @@
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//
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// FILE: TCA9555.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.2
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// VERSION: 0.1.3
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// PURPOSE: Arduino library for I2C TCA9555 16 channel port expander
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// DATE: 2021-06-09
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// URL: https://github.com/RobTillaart/TCA9555
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//
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// HISTORY:
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// 0.1.0 2021-06-09 initial version
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// 0.1.1 2021-06-10 add 16 bit interface
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// 0.1.2 2021-12-28 update Arduino-CI, readme, license, minor edits
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#include "TCA9555.h"
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// REGISTERS
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#define TCA9555_INPUT_PORT_REGISTER_0 0x00 // read()
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// REGISTERS
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#define TCA9555_INPUT_PORT_REGISTER_0 0x00 // read()
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#define TCA9555_INPUT_PORT_REGISTER_1 0x01
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#define TCA9555_OUTPUT_PORT_REGISTER_0 0x02 // write()
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#define TCA9555_OUTPUT_PORT_REGISTER_0 0x02 // write()
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#define TCA9555_OUTPUT_PORT_REGISTER_1 0x03
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#define TCA9555_POLARITY_REGISTER_0 0x04 // get/setPolarity
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#define TCA9555_POLARITY_REGISTER_0 0x04 // get/setPolarity
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#define TCA9555_POLARITY_REGISTER_1 0x05
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#define TCA9555_CONFIGURATION_PORT_0 0x06 // pinMode
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#define TCA9555_CONFIGURATION_PORT_0 0x06 // pinMode
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#define TCA9555_CONFIGURATION_PORT_1 0x07
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@ -62,9 +57,9 @@ bool TCA9555::isConnected()
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//////////////////////////////////////////////////////////
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//
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// 1 PIN INTERFACE
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// 1 PIN INTERFACE
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//
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bool TCA9555::pinMode(uint8_t pin, uint8_t mode)
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bool TCA9555::pinMode(uint8_t pin, uint8_t mode) // pin = 0..15
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{
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if (pin > 15)
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{
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@ -92,7 +87,7 @@ bool TCA9555::pinMode(uint8_t pin, uint8_t mode)
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}
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bool TCA9555::digitalWrite(uint8_t pin, uint8_t value) // pin = 0..15
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bool TCA9555::digitalWrite(uint8_t pin, uint8_t value) // pin = 0..15
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{
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if (pin > 15)
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{
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@ -115,7 +110,7 @@ bool TCA9555::digitalWrite(uint8_t pin, uint8_t value) // pin = 0..15
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}
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uint8_t TCA9555::digitalRead(uint8_t pin)
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uint8_t TCA9555::digitalRead(uint8_t pin) // pin = 0..15
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{
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if (pin > 15)
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{
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@ -136,7 +131,7 @@ uint8_t TCA9555::digitalRead(uint8_t pin)
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}
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bool TCA9555::setPolarity(uint8_t pin, uint8_t value) // pin = 0..15
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bool TCA9555::setPolarity(uint8_t pin, uint8_t value) // pin = 0..15
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{
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if (pin > 15)
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{
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@ -177,7 +172,7 @@ uint8_t TCA9555::getPolarity(uint8_t pin)
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//////////////////////////////////////////////////////////
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//
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// 8 PIN INTERFACE
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// 8 PIN INTERFACE
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//
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bool TCA9555::pinMode8(uint8_t port, uint8_t mask)
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{
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@ -193,7 +188,7 @@ bool TCA9555::pinMode8(uint8_t port, uint8_t mask)
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}
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bool TCA9555::write8(uint8_t port, uint8_t mask) // port = 0..1
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bool TCA9555::write8(uint8_t port, uint8_t mask) // port = 0..1
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{
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if (port > 1)
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{
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@ -240,12 +235,12 @@ uint8_t TCA9555::getPolarity8(uint8_t port)
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if (port > 1)
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{
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_error = TCA9555_PORT_ERROR;
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return false;
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return 0;
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}
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_error = TCA9555_OK;
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if (port == 0) return readRegister(TCA9555_POLARITY_REGISTER_0);
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if (port == 1) return readRegister(TCA9555_POLARITY_REGISTER_1);
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return 0; // keeps compiler happy
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return 0; // keeps compiler happy
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}
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@ -291,7 +286,7 @@ bool TCA9555::setPolarity16(uint16_t mask)
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uint8_t TCA9555::getPolarity16()
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{
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uint16_t rv = 0;
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uint16_t rv = 0;
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rv |= (getPolarity8(1) << 8);
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rv |= getPolarity8(0);
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return rv;
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@ -300,15 +295,15 @@ uint8_t TCA9555::getPolarity16()
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int TCA9555::lastError()
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{
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int e = _error;
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_error = TCA9555_OK; // reset error after read.
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return e;
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int error = _error;
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_error = TCA9555_OK; // reset error after read.
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return error;
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}
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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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bool TCA9555::writeRegister(uint8_t reg, uint8_t value)
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{
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@ -346,7 +341,7 @@ uint8_t TCA9555::readRegister(uint8_t reg)
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/////////////////////////////////////////////////////////////////////////////
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//
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// TCA9535
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// TCA9535
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//
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TCA9535::TCA9535(uint8_t address, TwoWire *wire)
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:TCA9555(address, wire)
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@ -2,7 +2,7 @@
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//
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// FILE: TCA9555.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.2
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// VERSION: 0.1.3
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// PURPOSE: Arduino library for I2C TCA9555 16 channel port expander
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// DATE: 2021-06-09
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// URL: https://github.com/RobTillaart/TCA9555
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@ -12,7 +12,7 @@
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#include "Wire.h"
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#define TCA9555_LIB_VERSION (F("0.1.2"))
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#define TCA9555_LIB_VERSION (F("0.1.3"))
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#define TCA9555_OK 0x00
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#define TCA9555_PIN_ERROR 0x81
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@ -43,7 +43,7 @@ public:
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bool pinMode(uint8_t pin, uint8_t mode);
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bool digitalWrite(uint8_t pin, uint8_t value);
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uint8_t digitalRead(uint8_t pin);
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bool setPolarity(uint8_t pin, uint8_t value); // input pins only.
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bool setPolarity(uint8_t pin, uint8_t value); // input pins only.
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uint8_t getPolarity(uint8_t pin);
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@ -75,15 +75,15 @@ protected:
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bool writeRegister(uint8_t reg, uint8_t value);
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uint8_t readRegister(uint8_t reg);
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uint8_t _address;
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TwoWire* _wire;
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uint8_t _error;
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uint8_t _address;
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TwoWire* _wire;
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uint8_t _error;
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};
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/////////////////////////////////////////////////////////////////////////////
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//
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// TCA9535 class which is just a wrapper (for now)
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// TCA9535 class which is just a wrapper (for now)
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//
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class TCA9535 : public TCA9555
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{
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@ -15,7 +15,7 @@
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"type": "git",
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"url": "https://github.com/RobTillaart/TCA9555.git"
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},
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"version": "0.1.2",
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"version": "0.1.3",
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"license": "MIT",
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"frameworks": "arduino",
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"platforms": "*",
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@ -1,5 +1,5 @@
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name=TCA9555
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version=0.1.2
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version=0.1.3
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author=Rob Tillaart <rob.tillaart@gmail.com>
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maintainer=Rob Tillaart <rob.tillaart@gmail.com>
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sentence=Arduino library for I2C TCA9555 16 channel port expander - 16 IO-lines
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