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TM1638.cpp
136 lines (119 loc) · 3.61 KB
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TM1638.cpp
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#include "Arduino.h"
#include "TM1638.h"
bool TM1638::getButton(button_t s){
_buttons = getButtons();
return bitRead(_buttons, s);
}
// buttons K3/KS1-8
uint8_t TM1638::getButtons(){
digitalWrite(_stb_pin, LOW);
writeData(INSTRUCTION_READ_KEY);
//Twait 1µs
pinMode(_dio_pin, INPUT);
digitalWrite(_clk_pin, LOW);
uint8_t data[4];
for (uint8_t i=0; i<sizeof(data);i++){
data[i] = shiftIn(_dio_pin, _clk_pin, LSBFIRST);
delayMicroseconds(1);
}
pinMode(_dio_pin, OUTPUT);
digitalWrite(_stb_pin, HIGH);
_buttons=0;
for (uint8_t i=0; i<4;i++){
_buttons |= data[i]<<i;
}
return _buttons;
}
void TM1638::reset(){
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA| INSTRUCTION_ADDRESS_AUTO);
digitalWrite(_stb_pin, LOW);
writeData(FIRST_DISPLAY_ADDRESS);
for(uint8_t i=0;i<16;i++)
writeData(0);
digitalWrite(_stb_pin, HIGH);
}
void TM1638::displayVal(uint8_t digitId, uint8_t val){
if ((digitId>7) | (val>15) | (val<0)) return;
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA| INSTRUCTION_ADDRESS_FIXED);
writeDataAt(FIRST_DISPLAY_ADDRESS+14-(digitId*2), _digits[val]);
}
void TM1638::displayDig(uint8_t digitId, uint8_t pgfedcba){
if (digitId>7) return;
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA| INSTRUCTION_ADDRESS_FIXED);
writeDataAt(FIRST_DISPLAY_ADDRESS+14-(digitId*2), pgfedcba);
}
void TM1638::displayClear(){
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA | INSTRUCTION_ADDRESS_FIXED);
for (uint8_t i=0;i<15;i+=2){
writeDataAt(FIRST_DISPLAY_ADDRESS+i,0x00);
}
}
void TM1638::writeLed(uint8_t num,bool state){
if ((num<1) | (num>8)) return;
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA | INSTRUCTION_ADDRESS_FIXED);
writeDataAt(FIRST_DISPLAY_ADDRESS + (num*2-1), state);
}
void TM1638::writeLeds(uint8_t val){
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA | INSTRUCTION_ADDRESS_FIXED);
for(uint8_t i=1;i<9;i++){
writeDataAt(FIRST_DISPLAY_ADDRESS + (i*2-1), val & 0x01);
val >>= 1;
}
}
void TM1638::displayTurnOn(){
setDisplayMode(DISPLAY_TURN_ON | _pulse);
_isOn = true;
}
void TM1638::displayTurnOff(){
setDisplayMode(DISPLAY_TURN_OFF | _pulse);
_isOn = false;
}
void TM1638::displaySetBrightness(pulse_t newpulse){
if ((newpulse<PULSE1_16) | (newpulse>PULSE14_16)) return;
_pulse = newpulse;
uint8_t data = (_isOn) ? DISPLAY_TURN_ON : DISPLAY_TURN_OFF;
data |= _pulse;
setDisplayMode(data);
}
void TM1638::writeData(uint8_t data){
shiftOut(_dio_pin,_clk_pin,LSBFIRST,data);
}
void TM1638::writeDataAt(uint8_t displayAddress, uint8_t data){
digitalWrite(_stb_pin, LOW);
writeData(displayAddress);
writeData(data);
digitalWrite(_stb_pin, HIGH);
delayMicroseconds(1);
}
void TM1638::setDisplayMode(uint8_t displayMode){
digitalWrite(_stb_pin, LOW);
writeData(displayMode);
digitalWrite(_stb_pin, HIGH);
delayMicroseconds(1);
}
void TM1638::setDataInstruction(uint8_t dataInstruction){
digitalWrite(_stb_pin, LOW);
writeData(dataInstruction);
digitalWrite(_stb_pin, HIGH);
delayMicroseconds(1);
}
void TM1638::test(){
uint8_t val=0;
for(uint8_t i=0;i<5;i++){
setDisplayMode(DISPLAY_TURN_ON | _pulse);
setDataInstruction(INSTRUCTION_WRITE_DATA| INSTRUCTION_ADDRESS_AUTO);
digitalWrite(_stb_pin, LOW);
writeData(FIRST_DISPLAY_ADDRESS);
for(uint8_t i=0;i<16;i++)
writeData(val);
digitalWrite(_stb_pin, HIGH);
delay(1000);
val = ~val;
}
}