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Add interrupt feature #7

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b8b52a7
Data Ready pin feature
marqdevx Feb 3, 2021
5e15f38
Added active High and Low
marqdevx Feb 12, 2021
d5c376d
Added Active High and Low
marqdevx Feb 12, 2021
8ef580f
Add files via upload
marqdevx Mar 19, 2021
3b97655
Add files via upload
marqdevx Mar 19, 2021
378645b
Update HTS.cpp
marqdevx Mar 19, 2021
339f396
Add files via upload
marqdevx Mar 19, 2021
1921fc2
Add files via upload
marqdevx Mar 19, 2021
8af9c21
Merge branch 'arduino-libraries:master' into master
marqdevx May 11, 2021
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9 changes: 8 additions & 1 deletion keywords.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,16 @@ end KEYWORD2
readTemperature KEYWORD2
readHumidity KEYWORD2

enableDataReady KEYWORD2
disableDataReady KEYWORD2
setOpenDrain KEYWORD2
setPushPull KEYWORD2
setActiveHigh KEYWORD2
setActiveLow KEYWORD2
Comment on lines +21 to +26
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Suggested change
enableDataReady KEYWORD2
disableDataReady KEYWORD2
setOpenDrain KEYWORD2
setPushPull KEYWORD2
setActiveHigh KEYWORD2
setActiveLow KEYWORD2
enableDataReady KEYWORD2
disableDataReady KEYWORD2
setOpenDrain KEYWORD2
setPushPull KEYWORD2
setActiveHigh KEYWORD2
setActiveLow KEYWORD2

In order to be recognized by the Arduino IDE, the keyword fields must be separated by a single true tab (not spaces):
https://arduino.github.io/arduino-cli/latest/library-specification/#keywordstxt-format


#########################################
# Constants
#########################################

FAHRENHEIT LITERAL1
FAHRENHEIT LITERAL1
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Suggested change
FAHRENHEIT LITERAL1
FAHRENHEIT LITERAL1

CELSIUS LITERAL1
42 changes: 39 additions & 3 deletions src/HTS.cpp
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Expand Up @@ -26,6 +26,7 @@
#define HTS221_WHO_AM_I_REG 0x0f
#define HTS221_CTRL1_REG 0x20
#define HTS221_CTRL2_REG 0x21
#define HTS221_CTRL3_REG 0x22 //Dara Ready (b7 0 active high)(open drain, b6 1)(b2, 1 enable data ready)
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remove the comment

#define HTS221_STATUS_REG 0x27
#define HTS221_HUMIDITY_OUT_L_REG 0x28
#define HTS221_TEMP_OUT_L_REG 0x2a
Expand All @@ -39,6 +40,7 @@
#define HTS221_T0_OUT_REG 0x3c
#define HTS221_T1_OUT_REG 0x3e


HTS221Class::HTS221Class(TwoWire& wire) :
_wire(&wire)
{
Expand All @@ -56,8 +58,12 @@ int HTS221Class::begin()

readHTS221Calibration();

// turn on the HTS221 and enable Block Data Update
i2cWrite(HTS221_CTRL1_REG, 0x84);
// enable HTS221
i2cWrite(HTS221_CTRL1_REG, 0x80);

// Default DREADY configuration
disableDataReady();
setPushPull();

return 1;
}
Expand All @@ -70,9 +76,39 @@ void HTS221Class::end()
_wire->end();
}

void HTS221Class::enableDataReady(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b11111000;
i2cWrite(HTS221_CTRL3_REG, data | 0b1 << 2);
}

void HTS221Class::disableDataReady(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b11111000;
i2cWrite(HTS221_CTRL3_REG, data | 0b0 << 2);
}

void HTS221Class::setOpenDrain(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b10111100;
i2cWrite(HTS221_CTRL3_REG, data | 0b1 << 6);
}

void HTS221Class::setPushPull(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b10111100;
i2cWrite(HTS221_CTRL3_REG, data);
}

void HTS221Class::setActiveHigh(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b01111111;
i2cWrite(HTS221_CTRL3_REG, data);
}

void HTS221Class::setActiveLow(){
uint8_t data = i2cRead(HTS221_CTRL3_REG) & 0b01111111;
i2cWrite(HTS221_CTRL3_REG, data | 0b1 << 7);
}

Comment on lines +79 to +108
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do you need all these methods? where are they used? i think that is better implement only the part we need for the library

float HTS221Class::readTemperature(int units)
{
// Wait for ONE_SHOT bit to be cleared by the hardware
// Wait for ONE_SHOT bit to be cleared by the hardware
while (i2cRead(HTS221_CTRL2_REG) & 0x01);

// trigger one shot
Expand Down
9 changes: 8 additions & 1 deletion src/HTS.h
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Expand Up @@ -22,7 +22,7 @@

#include <Arduino.h>
#include <Wire.h>

#define HTS221_CTRL3_REG 0x22
enum {
FAHRENHEIT,
CELSIUS
Expand All @@ -38,6 +38,13 @@ class HTS221Class {
float readTemperature(int units = CELSIUS);
float readHumidity();

void enableDataReady(); //Outputs pin3 DREADY
void disableDataReady();
void setOpenDrain();
void setPushPull();
void setActiveHigh();
void setActiveLow();

private:
int i2cRead(uint8_t reg);
int i2cRead16(uint8_t reg) {
Expand Down