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0.1.2 MCP23008
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rob tillaart
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@ -1,3 +1,18 @@
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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:
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defines:
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- ARDUINO_ARCH_RP2040
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warnings:
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flags:
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packages:
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rp2040:rp2040:
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url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
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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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@ -9,3 +24,4 @@ compile:
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- esp32
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# - esp8266
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# - mega2560
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- rpipico
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23
libraries/MCP23008/CHANGELOG.md
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23
libraries/MCP23008/CHANGELOG.md
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# Change Log MCP23008
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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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## [0.1.2] - 2022-11-17
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- add RP2040 in build-CI
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- add changelog.md
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- minor edit readme.md
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- update datasheet page numbers of registers MCP23008.cpp
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## [0.1.1] - 2022-09-28
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- optimize digitalWrite() - as that is the most used one
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## [0.1.0] - 2022-01-10
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- initial version released
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## [0.0.0] - 2019-10-12
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- pre release
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@ -1,32 +1,27 @@
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//
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// FILE: MCP23008.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.1
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// VERSION: 0.1.2
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// PURPOSE: Arduino library for I2C MCP23008 8 channel port expander
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// DATE: 2019-10-12
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// URL: https://github.com/RobTillaart/MCP23008
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//
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// HISTORY:
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// 0.1.0 2022-01-10 initial version
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// 0.1.1 2022-09-28 optimize digitalWrite() [as that is the most used one]
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#include "MCP23008.h"
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// Registers // description datasheet
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#define MCP23008_DDR_A 0x00 // Data Direction Register A P
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#define MCP23008_POL_A 0x01 // Input Polarity A P
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#define MCP23008_GPINTEN_A 0x02 // NOT USED interrupt enable P
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#define MCP23008_DEFVAL_A 0x03 // NOT USED interrupt def P
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#define MCP23008_INTCON_A 0x04 // NOT USED interrupt control P
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#define MCP23008_IOCR 0x05 // IO control register P
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#define MCP23008_PUR_A 0x06 // Pull Up Resistors A P
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#define MCP23008_INTF_A 0x07 // NOT USED interrupt flag P
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#define MCP23008_INTCAP_A 0x08 // NOT USED interrupt capture P
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#define MCP23008_GPIO_A 0x09 // General Purpose IO A P
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#define MCP23008_OLAT_A 0x0A // NOT USED output latch P
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// Registers // DESCRIPTION DATASHEET
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#define MCP23008_DDR_A 0x00 // Data Direction Register A P 10
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#define MCP23008_POL_A 0x01 // Input Polarity A P 11
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#define MCP23008_GPINTEN_A 0x02 // NOT USED interrupt enable P 12
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#define MCP23008_DEFVAL_A 0x03 // NOT USED interrupt def P 13
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#define MCP23008_INTCON_A 0x04 // NOT USED interrupt control P 14
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#define MCP23008_IOCR 0x05 // IO control register P 15
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#define MCP23008_PUR_A 0x06 // Pull Up Resistors A P 16
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#define MCP23008_INTF_A 0x07 // NOT USED interrupt flag P 17
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#define MCP23008_INTCAP_A 0x08 // NOT USED interrupt capture P 18
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#define MCP23008_GPIO_A 0x09 // General Purpose IO A P 19
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#define MCP23008_OLAT_A 0x0A // NOT USED output latch P 20
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MCP23008::MCP23008(uint8_t address, TwoWire *wire)
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@ -2,7 +2,7 @@
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//
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// FILE: MCP23008.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.1
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// VERSION: 0.1.2
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// PURPOSE: Arduino library for I2C MCP23008 16 channel port expander
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// DATE: 2022-01-10
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// URL: https://github.com/RobTillaart/MCP23008
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@ -12,7 +12,7 @@
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#include "Wire.h"
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#define MCP23008_LIB_VERSION (F("0.1.1"))
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#define MCP23008_LIB_VERSION (F("0.1.2"))
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#define MCP23008_OK 0x00
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#define MCP23008_PIN_ERROR 0x81
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@ -36,8 +36,8 @@ public:
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bool isConnected();
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// single pin interface
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// mode = INPUT, OUTPUT or INPUT_PULLUP (==INPUT)
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// single pin interface
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// mode = INPUT, OUTPUT or INPUT_PULLUP (== INPUT)
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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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@ -48,8 +48,8 @@ public:
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bool getPullup(uint8_t pin, bool &pullup);
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// 8 pins interface
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// value = bit pattern
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// 8 pins interface
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// value = bit pattern
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bool pinMode8(uint8_t value);
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bool write8(uint8_t value);
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int read8();
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@ -62,13 +62,13 @@ If one of the above functions return false, there might be an error.
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- **int lastError()** Above functions set an error flag that can be read with this function.
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Reading it will reset the flag to **MCP23008_OK**.
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| DESCRIPTION | VALUE |
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|:----------------------|:-----:|
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| MCP23008_OK | 0x00 |
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| MCP23008_PIN_ERROR | 0x81 |
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| MCP23008_I2C_ERROR | 0x82 |
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| MCP23008_VALUE_ERROR | 0x83 |
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| MCP23008_PORT_ERROR | 0x84 |
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| DESCRIPTION | VALUE |
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|:-----------------------|:-------:|
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| MCP23008_OK | 0x00 |
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| MCP23008_PIN_ERROR | 0x81 |
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| MCP23008_I2C_ERROR | 0x82 |
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| MCP23008_VALUE_ERROR | 0x83 |
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| MCP23008_PORT_ERROR | 0x84 |
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## Operation
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@ -15,7 +15,7 @@
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"type": "git",
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"url": "https://github.com/RobTillaart/MCP23008.git"
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},
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"version": "0.1.1",
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"version": "0.1.2",
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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=MCP23008
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version=0.1.1
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version=0.1.2
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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 MCP23008 8 channel port expander 8 IO-lines
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