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Gašper Dobrovoljc
2023-03-11 15:11:03 +01:00
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lib/Adafruit_SHT31/.github/ISSUE_TEMPLATE.md vendored Normal file
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Thank you for opening an issue on an Adafruit Arduino library repository. To
improve the speed of resolution please review the following guidelines and
common troubleshooting steps below before creating the issue:
- **Do not use GitHub issues for troubleshooting projects and issues.** Instead use
the forums at http://forums.adafruit.com to ask questions and troubleshoot why
something isn't working as expected. In many cases the problem is a common issue
that you will more quickly receive help from the forum community. GitHub issues
are meant for known defects in the code. If you don't know if there is a defect
in the code then start with troubleshooting on the forum first.
- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
check all of the steps and commands to run have been followed. Consult the
forum if you're unsure or have questions about steps in a guide/tutorial.
- **For Arduino projects check these very common issues to ensure they don't apply**:
- For uploading sketches or communicating with the board make sure you're using
a **USB data cable** and **not** a **USB charge-only cable**. It is sometimes
very hard to tell the difference between a data and charge cable! Try using the
cable with other devices or swapping to another cable to confirm it is not
the problem.
- **Be sure you are supplying adequate power to the board.** Check the specs of
your board and plug in an external power supply. In many cases just
plugging a board into your computer is not enough to power it and other
peripherals.
- **Double check all soldering joints and connections.** Flakey connections
cause many mysterious problems. See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
- **Ensure you are using an official Arduino or Adafruit board.** We can't
guarantee a clone board will have the same functionality and work as expected
with this code and don't support them.
If you're sure this issue is a defect in the code and checked the steps above
please fill in the following fields to provide enough troubleshooting information.
You may delete the guideline and text above to just leave the following details:
- Arduino board: **INSERT ARDUINO BOARD NAME/TYPE HERE**
- Arduino IDE version (found in Arduino -> About Arduino menu): **INSERT ARDUINO
VERSION HERE**
- List the steps to reproduce the problem below (if possible attach a sketch or
copy the sketch code in too): **LIST REPRO STEPS BELOW**

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lib/Adafruit_SHT31/.github/PULL_REQUEST_TEMPLATE.md vendored Normal file
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Thank you for creating a pull request to contribute to Adafruit's GitHub code!
Before you open the request please review the following guidelines and tips to
help it be more easily integrated:
- **Describe the scope of your change--i.e. what the change does and what parts
of the code were modified.** This will help us understand any risks of integrating
the code.
- **Describe any known limitations with your change.** For example if the change
doesn't apply to a supported platform of the library please mention it.
- **Please run any tests or examples that can exercise your modified code.** We
strive to not break users of the code and running tests/examples helps with this
process.
Thank you again for contributing! We will try to test and integrate the change
as soon as we can, but be aware we have many GitHub repositories to manage and
can't immediately respond to every request. There is no need to bump or check in
on a pull request (it will clutter the discussion of the request).
Also don't be worried if the request is closed or not integrated--sometimes the
priorities of Adafruit's GitHub code (education, ease of use) might not match the
priorities of the pull request. Don't fret, the open source community thrives on
forks and GitHub makes it easy to keep your changes in a forked repo.
After reviewing the guidelines above you can delete this text from the pull request.

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lib/Adafruit_SHT31/.travis.yml Normal file
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language: c
sudo: false
cache:
directories:
- ~/arduino_ide
- ~/.arduino15/packages/
git:
depth: false
quiet: true
env:
global:
- ARDUINO_IDE_VERSION="1.8.7"
- PRETTYNAME="Adafruit SHT31-D Library"
# Optional, will default to "$TRAVIS_BUILD_DIR/Doxyfile"
# - DOXYFILE: $TRAVIS_BUILD_DIR/Doxyfile
before_install:
- source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh)
install:
- true
script:
- build_main_platforms
# Generate and deploy documentation
after_success:
- source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/library_check.sh)
- source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/doxy_gen_and_deploy.sh)

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lib/Adafruit_SHT31/Adafruit_SHT31.cpp Normal file
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/***************************************************
This is a library for the SHT31 Digital Humidity & Temp Sensor
Designed specifically to work with the SHT31 Digital sensor from Adafruit
----> https://www.adafruit.com/products/2857
These sensors use I2C to communicate, 2 pins are required to interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
#include "Adafruit_SHT31.h"
Adafruit_SHT31::Adafruit_SHT31() {
_i2caddr = NULL;
humidity = 0.0f;
temp = 0.0f;
}
boolean Adafruit_SHT31::begin(uint8_t i2caddr) {
Wire.begin();
_i2caddr = i2caddr;
reset();
// return (readStatus() == 0x40);
return true;
}
uint16_t Adafruit_SHT31::readStatus(void) {
writeCommand(SHT31_READSTATUS);
Wire.requestFrom(_i2caddr, (uint8_t)3);
uint16_t stat = Wire.read();
stat <<= 8;
stat |= Wire.read();
// Serial.println(stat, HEX);
return stat;
}
void Adafruit_SHT31::reset(void) {
writeCommand(SHT31_SOFTRESET);
delay(10);
}
void Adafruit_SHT31::heater(boolean h) {
if (h)
writeCommand(SHT31_HEATEREN);
else
writeCommand(SHT31_HEATERDIS);
}
float Adafruit_SHT31::readTemperature(void) {
if (!readTempHum())
return NAN;
return temp;
}
float Adafruit_SHT31::readHumidity(void) {
if (!readTempHum())
return NAN;
return humidity;
}
boolean Adafruit_SHT31::readTempHum(void) {
uint8_t readbuffer[6];
writeCommand(SHT31_MEAS_HIGHREP);
delay(20);
Wire.requestFrom(_i2caddr, (uint8_t)6);
if (Wire.available() != 6)
return false;
for (uint8_t i = 0; i < 6; i++) {
readbuffer[i] = Wire.read();
// Serial.print("0x"); Serial.println(readbuffer[i], HEX);
}
uint16_t ST, SRH;
ST = readbuffer[0];
ST <<= 8;
ST |= readbuffer[1];
if (readbuffer[2] != crc8(readbuffer, 2))
return false;
SRH = readbuffer[3];
SRH <<= 8;
SRH |= readbuffer[4];
if (readbuffer[5] != crc8(readbuffer + 3, 2))
return false;
// Serial.print("ST = "); Serial.println(ST);
double stemp = ST;
stemp *= 175;
stemp /= 0xffff;
stemp = -45 + stemp;
temp = stemp;
// Serial.print("SRH = "); Serial.println(SRH);
double shum = SRH;
shum *= 100;
shum /= 0xFFFF;
humidity = shum;
return true;
}
void Adafruit_SHT31::writeCommand(uint16_t cmd) {
Wire.beginTransmission(_i2caddr);
Wire.write(cmd >> 8);
Wire.write(cmd & 0xFF);
Wire.endTransmission();
}
uint8_t Adafruit_SHT31::crc8(const uint8_t *data, int len) {
/*
*
* CRC-8 formula from page 14 of SHT spec pdf
*
* Test data 0xBE, 0xEF should yield 0x92
*
* Initialization data 0xFF
* Polynomial 0x31 (x8 + x5 +x4 +1)
* Final XOR 0x00
*/
const uint8_t POLYNOMIAL(0x31);
uint8_t crc(0xFF);
for (int j = len; j; --j) {
crc ^= *data++;
for (int i = 8; i; --i) {
crc = (crc & 0x80) ? (crc << 1) ^ POLYNOMIAL : (crc << 1);
}
}
return crc;
}

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/***************************************************
This is a library for the SHT31 Digital Humidity & Temp Sensor
Designed specifically to work with the SHT31 Digital sensor from Adafruit
----> https://www.adafruit.com/products/2857
These sensors use I2C to communicate, 2 pins are required to interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
#ifndef ADAFRUIT_SHT31_H
#define ADAFRUIT_SHT31_H
#include "Arduino.h"
#include "Wire.h"
#define SHT31_DEFAULT_ADDR 0x44
#define SHT31_MEAS_HIGHREP_STRETCH 0x2C06
#define SHT31_MEAS_MEDREP_STRETCH 0x2C0D
#define SHT31_MEAS_LOWREP_STRETCH 0x2C10
#define SHT31_MEAS_HIGHREP 0x2400
#define SHT31_MEAS_MEDREP 0x240B
#define SHT31_MEAS_LOWREP 0x2416
#define SHT31_READSTATUS 0xF32D
#define SHT31_CLEARSTATUS 0x3041
#define SHT31_SOFTRESET 0x30A2
#define SHT31_HEATEREN 0x306D
#define SHT31_HEATERDIS 0x3066
/**
* Driver for the Adafruit SHT31-D Temperature and Humidity breakout board.
*/
class Adafruit_SHT31 {
public:
/**
* Constructor.
*/
Adafruit_SHT31();
/**
* Initialises the I2C bus, and assigns the I2C address to us.
*
* @param i2caddr The I2C address to use for the sensor.
*
* @return True if initialisation was successful, otherwise False.
*/
boolean begin(uint8_t i2caddr = SHT31_DEFAULT_ADDR);
/**
* Gets a single temperature reading from the sensor.
*
* @return A float value indicating the temperature.
*/
float readTemperature(void);
/**
* Gets a single relative humidity reading from the sensor.
*
* @return A float value representing relative humidity.
*/
float readHumidity(void);
/**
* Gets the current status register contents.
*
* @return The 16-bit status register.
*/
uint16_t readStatus(void);
/**
* Performs a reset of the sensor to put it into a known state.
*/
void reset(void);
/**
* Enables or disabled the heating element.
*
* @param h True to enable the heater, False to disable it.
*/
void heater(boolean h);
/**
* Performs a CRC8 calculation on the supplied values.
*
* @param data Pointer to the data to use when calculating the CRC8.
* @param len The number of bytes in 'data'.
*
* @return The computed CRC8 value.
*/
uint8_t crc8(const uint8_t *data, int len);
private:
/**
* Placeholder to track the I2C address.
*/
uint8_t _i2caddr;
/**
* Placeholder to track humidity internally.
*/
float humidity;
/**
* Placeholder to track temperature internally.
*/
float temp;
/**
* Internal function to perform a temp + humidity read.
*
* @return True if successful, otherwise false.
*/
boolean readTempHum(void);
/**
* Internal function to perform and I2C write.
*
* @param cmd The 16-bit command ID to send.
*/
void writeCommand(uint16_t cmd);
/**
* Internal function to read data over the I2C bus.
*
* @return True if successful, otherwise False.
*/
boolean readData(void);
};
#endif

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lib/Adafruit_SHT31/README.md Normal file
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# Adafruit SHT31-D Temperature and Humidity Sensor Breakout [![Build Status](https://travis-ci.org/adafruit/Adafruit_SHT31.svg?branch=master)](https://travis-ci.org/adafruit/Adafruit_SHT31)
![Adafruit SHT31](https://cdn-learn.adafruit.com/assets/assets/000/028/970/small360/adafruit_products_2857_iso_ORIG.jpg?1449606376)
This is a library for the SHT31 Digital Humidity + Temp sensor.
It is designed specifically to work with the SHT31 Digital in the Adafruit shop:
- https://www.adafruit.com/products/2857
These sensors use **I2C** to communicate, 2 pins are required to interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
Check out the links above for our tutorials and wiring diagrams
## Installation
Use the Arduino Library Manager to install this library. If you're unfamiliar
with how this works, we have a great tutorial on Arduino library installation
at: http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use
<!-- START COMPATIBILITY TABLE -->
## Compatibility
MCU | Tested Works | Doesn't Work | Not Tested | Notes
------------------ | :----------: | :----------: | :---------: | -----
Atmega328 @ 16MHz | X | | |
Atmega328 @ 12MHz | X | | |
Atmega32u4 @ 16MHz | X | | |
Atmega32u4 @ 8MHz | X | | |
ESP8266 | X | | |
Atmega2560 @ 16MHz | X | | |
ATSAM3X8E | X | | |
ATSAM21D | X | | |
ATtiny85 @ 16MHz | X | | |
ATtiny85 @ 8MHz | X | | |
Intel Curie @ 32MHz | | | X |
STM32F2 | | | X |
* ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
* ATmega328 @ 12MHz : Adafruit Pro Trinket 3V
* ATmega32u4 @ 16MHz : Arduino Leonardo, Arduino Micro, Arduino Yun, Teensy 2.0
* ATmega32u4 @ 8MHz : Adafruit Flora, Bluefruit Micro
* ESP8266 : Adafruit Huzzah
* ATmega2560 @ 16MHz : Arduino Mega
* ATSAM3X8E : Arduino Due
* ATSAM21D : Arduino Zero, M0 Pro
* ATtiny85 @ 16MHz : Adafruit Trinket 5V
* ATtiny85 @ 8MHz : Adafruit Gemma, Arduino Gemma, Adafruit Trinket 3V
<!-- END COMPATIBILITY TABLE -->

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lib/Adafruit_SHT31/examples/SHT31test/SHT31test.ino Normal file
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/***************************************************
This is an example for the SHT31-D Humidity & Temp Sensor
Designed specifically to work with the SHT31-D sensor from Adafruit
----> https://www.adafruit.com/products/2857
These sensors use I2C to communicate, 2 pins are required to
interface
****************************************************/
#include <Arduino.h>
#include <Wire.h>
#include "Adafruit_SHT31.h"
Adafruit_SHT31 sht31 = Adafruit_SHT31();
void setup() {
Serial.begin(9600);
while (!Serial)
delay(10); // will pause Zero, Leonardo, etc until serial console opens
Serial.println("SHT31 test");
if (! sht31.begin(0x44)) { // Set to 0x45 for alternate i2c addr
Serial.println("Couldn't find SHT31");
while (1) delay(1);
}
}
void loop() {
float t = sht31.readTemperature();
float h = sht31.readHumidity();
if (! isnan(t)) { // check if 'is not a number'
Serial.print("Temp *C = "); Serial.println(t);
} else {
Serial.println("Failed to read temperature");
}
if (! isnan(h)) { // check if 'is not a number'
Serial.print("Hum. % = "); Serial.println(h);
} else {
Serial.println("Failed to read humidity");
}
Serial.println();
delay(1000);
}

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lib/Adafruit_SHT31/library.properties Normal file
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name=Adafruit SHT31 Library
version=1.1.0
author=Adafruit
maintainer=Adafruit <info@adafruit.com>
sentence=Arduino library for SHT31 temperature & humidity sensor.
paragraph=Arduino library for SHT31 temperature & humidity sensor.
category=Sensors
url=https://github.com/adafruit/Adafruit_SHT31
architectures=*