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0.1.2 MTP40F
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@ -6,6 +6,10 @@ 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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and this project adheres to [Semantic Versioning](http://semver.org/).
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## [0.1.2] - 2023-11-14
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- update readme.md
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## [0.1.1] - 2023-08-02
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## [0.1.1] - 2023-08-02
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- fix **getGasConcentration()** status handling
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- fix **getGasConcentration()** status handling
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- update readme.md
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- update readme.md
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@ -16,7 +20,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
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- add default value to **setSelfCalibrationHours(hours = 168)**
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- add default value to **setSelfCalibrationHours(hours = 168)**
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- update examples
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- update examples
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## [0.1.0] - 2023-07-25
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## [0.1.0] - 2023-07-25
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- initial version.
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- initial version.
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@ -2,7 +2,7 @@
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// FILE: MTP40F.cpp
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// FILE: MTP40F.cpp
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// AUTHOR: Rob Tillaart
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// AUTHOR: Rob Tillaart
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// DATE: 2023-07-25
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// DATE: 2023-07-25
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// VERSION: 0.1.1
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// VERSION: 0.1.2
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// PURPOSE: Arduino library for MTP40F CO2 sensor
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// PURPOSE: Arduino library for MTP40F CO2 sensor
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// URL: https://github.com/RobTillaart/MTP40F
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// URL: https://github.com/RobTillaart/MTP40F
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@ -211,7 +211,7 @@ int MTP40F::lastError()
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// PRIVATE
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// PROTECTED
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//
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//
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bool MTP40F::request(uint8_t *data, uint8_t commandLength, uint8_t responseLength)
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bool MTP40F::request(uint8_t *data, uint8_t commandLength, uint8_t responseLength)
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{
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{
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@ -3,7 +3,7 @@
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// FILE: MTP40F.h
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// FILE: MTP40F.h
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// AUTHOR: Rob Tillaart
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// AUTHOR: Rob Tillaart
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// DATE: 2023-07-25
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// DATE: 2023-07-25
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// VERSION: 0.1.1
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// VERSION: 0.1.2
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// PURPOSE: Arduino library for MTP40F CO2 sensor
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// PURPOSE: Arduino library for MTP40F CO2 sensor
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// URL: https://github.com/RobTillaart/MTP40F
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// URL: https://github.com/RobTillaart/MTP40F
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@ -11,7 +11,7 @@
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#include "Arduino.h"
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#include "Arduino.h"
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#define MTP40F_LIB_VERSION (F("0.1.1"))
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#define MTP40F_LIB_VERSION (F("0.1.2"))
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#define MTP40F_DEFAULT_ADDRESS 0x64
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#define MTP40F_DEFAULT_ADDRESS 0x64
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@ -64,8 +64,9 @@ public:
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//////////////////////////////////////////////////////
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//////////////////////////////////////////////////////
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//
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// PROTECTED
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//
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protected:
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protected:
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Stream * _ser;
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Stream * _ser;
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uint8_t _buffer[16];
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uint8_t _buffer[16];
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@ -1,9 +1,12 @@
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[![Arduino CI](https://github.com/RobTillaart/MTP40F/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
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[![Arduino CI](https://github.com/RobTillaart/MTP40F/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
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[![JSON check](https://github.com/RobTillaart/MTP40F/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/MTP40F/actions/workflows/jsoncheck.yml)
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[![Arduino-lint](https://github.com/RobTillaart/MTP40F/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/MTP40F/actions/workflows/arduino-lint.yml)
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[![Arduino-lint](https://github.com/RobTillaart/MTP40F/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/MTP40F/actions/workflows/arduino-lint.yml)
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[![JSON check](https://github.com/RobTillaart/MTP40F/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/MTP40F/actions/workflows/jsoncheck.yml)
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[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/MTP40F.svg)](https://github.com/RobTillaart/MTP40F/issues)
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[![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/MTP40F/blob/master/LICENSE)
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[![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/MTP40F/blob/master/LICENSE)
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[![GitHub release](https://img.shields.io/github/release/RobTillaart/MTP40F.svg?maxAge=3600)](https://github.com/RobTillaart/MTP40F/releases)
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[![GitHub release](https://img.shields.io/github/release/RobTillaart/MTP40F.svg?maxAge=3600)](https://github.com/RobTillaart/MTP40F/releases)
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[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/MTP40F.svg)](https://registry.platformio.org/libraries/robtillaart/MTP40F)
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# MTP40F
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# MTP40F
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@ -45,7 +48,7 @@ commands e.g. **setSelfCalibration()**.
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The CRC of the sensor responses are not verified by the library (yet).
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The CRC of the sensor responses are not verified by the library (yet).
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###s# Hardware interface MTP40-F
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#### Hardware interface MTP40-F
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Has TTL level RS232, I2C and PWM IO.
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Has TTL level RS232, I2C and PWM IO.
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@ -54,25 +57,25 @@ Has TTL level RS232, I2C and PWM IO.
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+-------------+
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+-------------+
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VCC (3v3 out) 5 --| |-- 1 Vin
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VCC (3v3 out) 5 --| |-- 1 Vin
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TX 6 --| |-- 2 GND
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TX / SDA 6 --| |-- 2 GND
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RX 7 --| |-- 3 ALARM
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RX / SCL 7 --| |-- 3 ALARM
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R?T 8 --| |-- 4 PWM / I2C
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R/T 8 --| |-- 4 PWM / I2C
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GND 9 --| |
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GND 9 --| |
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+-------------+
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+-------------+
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```
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```
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| Pin | Name | Description |
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| Pin | Name | Description |
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|:-----:|:----------|:-----------------------------|
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|:-----:|:-----------|:-----------------------------|
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| 1 | Vin | 4.2V - 5.5V |
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| 1 | Vin | 4.2V - 5.5V |
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| 2 | GND | idem |
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| 2 | GND | idem |
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| 3 | ALARM | HIGH above 1000 PPM, LOW below 800 PPM (hysteresis) |
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| 3 | ALARM | HIGH above 1000 PPM, LOW below 800 PPM (hysteresis) |
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| 4 | PWM/I2C | PWM out |
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| 4 | PWM/I2C | PWM out |
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| 5 | VCC_O | 3V3 out for serial |
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| 5 | VCC_O | 3V3 out for serial |
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| 6 | TX | Transmit 9600 baud or SDA |
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| 6 | TX / SDA | Transmit 9600 baud or SDA |
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| 7 | RX | Receive 9600 baud or SCL |
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| 7 | RX / SCL | Receive 9600 baud or SCL |
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| 8 | R/T | select I2C / Serial |
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| 8 | R/T | select Serial or I2C |
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| 9 | GND | idem |
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| 9 | GND | idem |
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#### Links
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#### Links
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@ -208,7 +211,6 @@ Note: read datasheet!
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datasheet states 0x2000 but that is 8192 which is rather strange.
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datasheet states 0x2000 but that is 8192 which is rather strange.
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Assumption 2000 decimal is meant.
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Assumption 2000 decimal is meant.
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#### Could
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#### Could
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- serial bus with multiple devices? => diodes
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- serial bus with multiple devices? => diodes
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- some functions returning bool should return int
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- some functions returning bool should return int
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to handle errors better MTP40F_OK or ERROR flag.
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to handle errors better MTP40F_OK or ERROR flag.
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#### Wont
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#### Wont
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- store SPC point in the class?
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- store SPC point in the class?
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## Support
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If you appreciate my libraries, you can support the development and maintenance.
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Improve the quality of the libraries by providing issues and Pull Requests, or
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donate through PayPal or GitHub sponsors.
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Thank you,
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// This sketch is meant to test the PWM conversion formula.
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// This sketch is meant to test the PWM conversion formula.
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// Written for an Arduino UNO.
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// Written for an Arduino UNO.
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// - it first loops through all possible values.
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// - it first loops through all possible values.
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// - then it generates a random pulselength (within range) on pin 7
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// - then it generates a random pulse length (within range) on pin 7
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// - connect pin 7 to interrupt pin 3 as test.
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// - connect pin 7 to interrupt pin 3 as test.
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//
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//
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// Connect the PWM output to the interrupt pin 2 or 3 of the UNO.
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// Connect the PWM output to the interrupt pin 2 or 3 of the UNO.
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"type": "git",
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"type": "git",
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"url": "https://github.com/RobTillaart/MTP40F.git"
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"url": "https://github.com/RobTillaart/MTP40F.git"
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},
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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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"license": "MIT",
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"frameworks": "arduino",
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"frameworks": "*",
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"platforms": "*",
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"platforms": "*",
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"headers": "MTP40F.h"
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"headers": "MTP40F.h"
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}
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}
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name=MTP40F
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name=MTP40F
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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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author=Rob Tillaart <rob.tillaart@gmail.com>
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maintainer=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 MTP40F CO2 sensor
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sentence=Arduino library for MTP40F CO2 sensor
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