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add button inputs keys funcions #83

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add button inputs keys funcions #83

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2017010
Add keys scan funcions (input keys) for HT16K33
phd0 Feb 6, 2024
e6b1669
complete cpp file
phd0 Feb 6, 2024
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124 changes: 92 additions & 32 deletions Adafruit_LEDBackpack.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -43,11 +43,11 @@
#endif

#ifndef _swap_int16_t
#define _swap_int16_t(a, b) \
{ \
int16_t t = a; \
a = b; \
b = t; \
#define _swap_int16_t(a, b) \
{ \
int16_t t = a; \
a = b; \
b = t; \
} ///< 16-bit var swap
#endif

Expand Down Expand Up @@ -153,17 +153,38 @@ static const PROGMEM uint8_t sevensegfonttable[] = {

static const PROGMEM uint16_t alphafonttable[] = {

0b0000000000000001, 0b0000000000000010, 0b0000000000000100,
0b0000000000001000, 0b0000000000010000, 0b0000000000100000,
0b0000000001000000, 0b0000000010000000, 0b0000000100000000,
0b0000001000000000, 0b0000010000000000, 0b0000100000000000,
0b0001000000000000, 0b0010000000000000, 0b0100000000000000,
0b1000000000000000, 0b0000000000000000, 0b0000000000000000,
0b0000000000000000, 0b0000000000000000, 0b0000000000000000,
0b0000000000000000, 0b0000000000000000, 0b0000000000000000,
0b0001001011001001, 0b0001010111000000, 0b0001001011111001,
0b0000000011100011, 0b0000010100110000, 0b0001001011001000,
0b0011101000000000, 0b0001011100000000,
0b0000000000000001,
0b0000000000000010,
0b0000000000000100,
0b0000000000001000,
0b0000000000010000,
0b0000000000100000,
0b0000000001000000,
0b0000000010000000,
0b0000000100000000,
0b0000001000000000,
0b0000010000000000,
0b0000100000000000,
0b0001000000000000,
0b0010000000000000,
0b0100000000000000,
0b1000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0000000000000000,
0b0001001011001001,
0b0001010111000000,
0b0001001011111001,
0b0000000011100011,
0b0000010100110000,
0b0001001011001000,
0b0011101000000000,
0b0001011100000000,
0b0000000000000000, //
0b0000000000000110, // !
0b0000001000100000, // "
Expand Down Expand Up @@ -259,9 +280,8 @@ static const PROGMEM uint16_t alphafonttable[] = {
0b0001001000000000, // |
0b0010010010001001, // }
0b0000010100100000, // ~
0b0011111111111111,

};
0b0011111111111111 };


void Adafruit_LEDBackpack::setDisplayState(bool state) {
uint8_t buffer;
Expand All @@ -287,16 +307,15 @@ void Adafruit_LEDBackpack::blinkRate(uint8_t b) {
}

Adafruit_LEDBackpack::Adafruit_LEDBackpack(void) {}

bool Adafruit_LEDBackpack::begin(uint8_t _addr, TwoWire *theWire) {
if (i2c_dev)
delete i2c_dev;
i2c_dev = new Adafruit_I2CDevice(_addr, theWire);
if (!i2c_dev->begin())
return false;

i2c_addr = _addr;
// turn on oscillator
uint8_t buffer[1] = {0x21};
uint8_t buffer[1] = { 0x21 };
i2c_dev->write(buffer, 1);

// internal RAM powers up with garbage/random values.
Expand All @@ -305,11 +324,8 @@ bool Adafruit_LEDBackpack::begin(uint8_t _addr, TwoWire *theWire) {
// when it is turned on.
clear();
writeDisplay();

blinkRate(HT16K33_BLINK_OFF);

setBrightness(15); // max brightness

return true;
}

Expand All @@ -322,7 +338,6 @@ void Adafruit_LEDBackpack::writeDisplay(void) {
buffer[1 + 2 * i] = displaybuffer[i] & 0xFF;
buffer[2 + 2 * i] = displaybuffer[i] >> 8;
}

i2c_dev->write(buffer, 17);
}

Expand All @@ -332,6 +347,55 @@ void Adafruit_LEDBackpack::clear(void) {
}
}

// Helper button functions, the data is updated every readSwitches() call!

bool Adafruit_LEDBackpack::isKeyPressed(uint8_t group, uint8_t k) {
if (group < 0 or group > 2 or k > 12)
return false;
return (keys[group] & _BV(k));
}

bool Adafruit_LEDBackpack::wasKeyPressed(uint8_t group, uint8_t k) {
if (group < 0 or group > 2 or k > 12)
return false;
return (lastkeys[group] & _BV(k));
}

bool Adafruit_LEDBackpack::justPressed(uint8_t group, uint8_t k) {
return (isKeyPressed(group, k) & !wasKeyPressed(group, k));
}

bool Adafruit_LEDBackpack::justReleased(uint8_t group, uint8_t k) {
return (!isKeyPressed(group, k) & wasKeyPressed(group, k));
}

bool Adafruit_LEDBackpack::readSwitches(void) {
memcpy(lastkeys, keys, sizeof(keys));

Wire.beginTransmission((byte)i2c_addr);
Wire.write(0x40);
Wire.endTransmission();
Wire.requestFrom((byte)i2c_addr, (byte)6);
for (uint8_t i = 0; i < 6; i++)
_keys[i] = Wire.read();
keys[0] = _keys[0] | (_keys[1] & 0x1F) << 8;
keys[1] = _keys[2] | (_keys[3] & 0x1F) << 8;
keys[2] = _keys[4] | (_keys[5] & 0x1F) << 8;

for (uint8_t i = 0; i < 3; i++) {
if (lastkeys[i] != keys[i]) {
/* for (uint8_t j = 0; j < 3; j++) {
Serial.print("0x");
Serial.print(keys[j], HEX);
Serial.print(" ");
}
Serial.println(); */
return true;
}
}
return false;
}

/******************************* QUAD ALPHANUM OBJECT */

Adafruit_AlphaNum4::Adafruit_AlphaNum4(void) {}
Expand All @@ -342,15 +406,12 @@ void Adafruit_AlphaNum4::writeDigitRaw(uint8_t n, uint16_t bitmask) {

void Adafruit_AlphaNum4::writeDigitAscii(uint8_t n, uint8_t a, bool d) {
uint16_t font = pgm_read_word(alphafonttable + a);

displaybuffer[n] = font;

/*
Serial.print(a, DEC);
Serial.print(" / '"); Serial.write(a);
Serial.print("' = 0x"); Serial.println(font, HEX);
*/

if (d)
displaybuffer[n] |= (1 << 14);
}
Expand Down Expand Up @@ -643,7 +704,6 @@ void Adafruit_7segment::println(double n, int digits) {
void Adafruit_7segment::print(double n, int digits) { printFloat(n, digits); }

size_t Adafruit_7segment::write(char c) {

uint8_t r = 0;

if (c == '\n')
Expand Down Expand Up @@ -783,8 +843,8 @@ void Adafruit_7segment::printFloat(double n, uint8_t fracDigits, uint8_t base) {
}

// did toIntFactor shift the decimal off the display?
if (toIntFactor < 1) {
printError();
if (toIntFactor < 1) {
printError();
} else {
// otherwise, display the number
int8_t displayPos = 4;
Expand Down
63 changes: 55 additions & 8 deletions Adafruit_LEDBackpack.h
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,13 @@ See https://learn.adafruit.com/14-segment-alpha-numeric-led-featherwing/usage
/*!
@brief Class encapsulating the raw HT16K33 controller device.
*/
class Adafruit_LEDBackpack {
class Adafruit_LEDBackpack
{
private:
uint8_t i2c_addr;
uint16_t keys[3], lastkeys[3];
uint8_t _keys[6];

public:
/*!
@brief Constructor for HT16K33 devices.
Expand Down Expand Up @@ -139,14 +145,48 @@ class Adafruit_LEDBackpack {

uint16_t displaybuffer[8]; ///< Raw display data

/*!
@brief return position of key.
@param group 0 to 2 of 13 keys
@param k number of key (0 to 12)
*/
bool isKeyPressed(uint8_t group, uint8_t k);

/*!
@brief return previous position of key.
@param group 0 to 2 of 13 keys
@param k number of key (0 to 12)
*/
bool wasKeyPressed(uint8_t group, uint8_t k);

/*!
@brief true only one time : return OFF -> ON position of key.
@param group 0 to 2 of 13 keys
@param k number of key (0 to 12)
*/
bool justPressed(uint8_t group, uint8_t k);

/*!
@brief true only one time : return ON -> OFF position of key.
@param group 0 to 2 of 13 keys
@param k number of key (0 to 12)
*/
bool justReleased(uint8_t group, uint8_t k);

/*!
@brief read all the keys, and return TRUE if one or more keys change.
*/
bool readSwitches();

protected:
Adafruit_I2CDevice *i2c_dev = NULL; ///< Pointer to I2C bus interface
};

/*!
@brief Class for 24-element bargraph displays.
*/
class Adafruit_24bargraph : public Adafruit_LEDBackpack {
class Adafruit_24bargraph : public Adafruit_LEDBackpack
{
public:
/*!
@brief Constructor for 24-element bargraph displays.
Expand All @@ -164,7 +204,8 @@ class Adafruit_24bargraph : public Adafruit_LEDBackpack {
/*!
@brief Class for 8x16 pixel single-color matrices.
*/
class Adafruit_8x16matrix : public Adafruit_LEDBackpack, public Adafruit_GFX {
class Adafruit_8x16matrix : public Adafruit_LEDBackpack, public Adafruit_GFX
{
public:
/*!
@brief Constructor for 8x16 pixel single-color matrices.
Expand All @@ -186,7 +227,8 @@ class Adafruit_8x16matrix : public Adafruit_LEDBackpack, public Adafruit_GFX {
@brief Class for 8x16 pixel single-color mini matrices.
*/
class Adafruit_8x16minimatrix : public Adafruit_LEDBackpack,
public Adafruit_GFX {
public Adafruit_GFX
{
public:
/*!
@brief Constructor for 8x16 pixel single-color mini matrices.
Expand All @@ -207,7 +249,8 @@ class Adafruit_8x16minimatrix : public Adafruit_LEDBackpack,
/*!
@brief Class for 8x8 pixel single-color matrices.
*/
class Adafruit_8x8matrix : public Adafruit_LEDBackpack, public Adafruit_GFX {
class Adafruit_8x8matrix : public Adafruit_LEDBackpack, public Adafruit_GFX
{
public:
/*!
@brief Constructor for 8x8 pixel single-color matrices.
Expand All @@ -229,7 +272,8 @@ class Adafruit_8x8matrix : public Adafruit_LEDBackpack, public Adafruit_GFX {
@brief Class for bi-color matrices.
*/
class Adafruit_BicolorMatrix : public Adafruit_LEDBackpack,
public Adafruit_GFX {
public Adafruit_GFX
{
public:
/*!
@brief Constructor for 8x8 pixel bi-color matrices.
Expand All @@ -252,7 +296,8 @@ class Adafruit_BicolorMatrix : public Adafruit_LEDBackpack,
/*!
@brief Class for 7-segment numeric displays.
*/
class Adafruit_7segment : public Adafruit_LEDBackpack {
class Adafruit_7segment : public Adafruit_LEDBackpack
{
public:
/*!
@brief Constructor for 7-segment numeric displays.
Expand Down Expand Up @@ -463,7 +508,9 @@ class Adafruit_7segment : public Adafruit_LEDBackpack {
/*!
@brief Class for four-digit alphanumeric displays.
*/
class Adafruit_AlphaNum4 : public Adafruit_LEDBackpack {
class Adafruit_AlphaNum4 : public Adafruit_LEDBackpack
{

public:
/*!
@brief Constructor for four-digit alphanumeric displays.
Expand Down
62 changes: 62 additions & 0 deletions keywords.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,62 @@
#######################################
# Syntax Coloring Map For Adafruit_LEDBackpack
#######################################
# Class
#######################################

Adafruit_LEDBackpack KEYWORD1
Adafruit_24bargraph KEYWORD1
Adafruit_8x16matrix KEYWORD1
Adafruit_8x16minimatrix KEYWORD1
Adafruit_8x8matrix KEYWORD1
Adafruit_BicolorMatrix KEYWORD1
Adafruit_7segment KEYWORD1
Adafruit_AlphaNum4 KEYWORD1

#######################################
# Methods and Functions
#######################################

begin KEYWORD2
setDisplayState KEYWORD2
setBrightness KEYWORD2
setPixelColor KEYWORD2
blinkRate KEYWORD2
writeDisplay KEYWORD2
clear KEYWORD2
isKeyPressed KEYWORD2
wasKeyPressed KEYWORD2
justPressed KEYWORD2
getPixels KEYWORD2
justReleased KEYWORD2
readSwitches KEYWORD2
writeDigitRaw KEYWORD2
writeDigitAscii KEYWORD2


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

ALPHANUM_SEG_A LITERAL1
ALPHANUM_SEG_B LITERAL1
ALPHANUM_SEG_C LITERAL1
ALPHANUM_SEG_D LITERAL1
ALPHANUM_SEG_E LITERAL1
ALPHANUM_SEG_F LITERAL1
ALPHANUM_SEG_G1 LITERAL1
ALPHANUM_SEG_G2 LITERAL1
ALPHANUM_SEG_H LITERAL1
ALPHANUM_SEG_J LITERAL1
ALPHANUM_SEG_K LITERAL1
ALPHANUM_SEG_L LITERAL1
ALPHANUM_SEG_M LITERAL1
ALPHANUM_SEG_N LITERAL1
ALPHANUM_SEG_DP LITERAL1

HT16K33_BLINK_CMD LITERAL1
HT16K33_BLINK_DISPLAYON LITERAL1
HT16K33_BLINK_OFF LITERAL1
HT16K33_BLINK_2HZ LITERAL1
HT16K33_BLINK_1HZ LITERAL1
HT16K33_BLINK_HALFHZ LITERAL1
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