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‎README.txt

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TM1628 library
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--------------
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Vasyl Yudin
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Email: vasyl(dot)yudin(at)gmail(dot)com
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URL: github TM1628
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A library for interacting an arduino with a TM1628.
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Includes:
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- Support for the TM1628;
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- Helper method for displaying time;
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- Reading simultaneous button presses;
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- Support for dimming the display and LEDs;
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- Support for method 'print';
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USAGE NOTES
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-----------
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Just put the files on a TM1628 directory under "arduino/libraries" on your arduino IDE instalation

‎TM1628.cpp

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#if defined(ARDUINO) && ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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#include "TM1628.h"
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byte _curpos = 0x00;
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byte buffer[14] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
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const byte seg_addr[7]={0x00,0x01,0x07,0x02,0x03,0x04,0x05};//no bit of digital segments
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// SG0 SG1 SG2 SG3 SG4 SG5 SG6 SG7 DVD VCD MP3 PLY PAU PBC RET DTS DDD CL1 CL2 //name -|
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const byte led_addr[19]={0x03,0x0B,0x0D,0x07,0x05,0x09,0x0D,0x01,0x01,0x03,0x05,0x09,0x0b,0x07,0x00,0x08,0x06,0x02,0x04};//adress -| for the signs's and disc's leds
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const byte led_val[19]= {0x01,0x01,0x01,0x01,0x01,0x01,0x02,0x01,0x02,0x02,0x02,0x02,0x02,0x02,0x40,0x40,0x40,0x40,0x40};//byte -|
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TM1628::TM1628(byte _dio_pin, byte _clk_pin, byte _stb_pin) {
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this->_dio_pin = _dio_pin;
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this->_clk_pin = _clk_pin;
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this->_stb_pin = _stb_pin;
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pinMode(_dio_pin, OUTPUT);
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pinMode(_clk_pin, OUTPUT);
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pinMode(_stb_pin, OUTPUT);
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digitalWrite(_stb_pin, HIGH);
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digitalWrite(_clk_pin, HIGH);
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sendCommand(0x40);
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sendCommand(0x80);
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digitalWrite(_stb_pin, LOW);
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send(0xC0);
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clear();
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digitalWrite(_stb_pin, HIGH);
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}
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void TM1628::begin(boolean active = true, byte intensity = 1) {
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sendCommand(0x80 | (active ? 8 : 0) | min(7, intensity));
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}
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void TM1628::update() {
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for (int i=0; i<14; i++)
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sendData(i, buffer[i]);
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}
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void TM1628::setTime(int hour,int min,int sec) {
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if (hour >= 100) setSeg(0, (hour/100));
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if (hour >= 10) setSeg(1, (hour%100)/10);
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setSeg(2, (hour%100)%10);
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setSeg(3, (min/10));
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setSeg(4, (min%10));
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setSeg(5, (sec/10));
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setSeg(6, (sec%10));
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update();
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}
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void TM1628::clear() {
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for (int i=0; i<14; i++)
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buffer[i]=0x00;
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_curpos=0x00;
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update();
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}
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void TM1628::setLED(byte led){
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buffer[led_addr[led]] = buffer[led_addr[led]] ^ led_val[led];
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update();
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}
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void TM1628::setLEDon(byte led){
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buffer[led_addr[led]] |= led_val[led];//= buffer[led_addr[led]] | led_val[led];
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update();
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}
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void TM1628::setLEDoff(byte led){
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buffer[led_addr[led]] &= 0xFF - led_val[led];//= buffer[led_addr[led]] & (0xFF - led_val[led]);
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update();
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}
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void TM1628::setDisc(boolean onoff){
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if (onoff) {
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for(int i=0;i<8;i++)// turn on all disc segments
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buffer[led_addr[i]] = buffer[led_addr[i]] | led_val[i];
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} else {
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for(int i=0;i<8;i++)
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buffer[led_addr[i]] = buffer[led_addr[i]] & (0xFF - led_val[i]);
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}
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update();
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}
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byte TM1628::getButtons() {
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byte keys = 0;
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digitalWrite(_stb_pin, LOW);
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send(0x42);
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for (int i = 0; i < 5; i++) {
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keys |= receive() << i;
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}
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digitalWrite(_stb_pin, HIGH);
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return keys;
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}
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void TM1628::write(byte chr){
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if(_curpos<0x07) {
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setChar(_curpos, chr);
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_curpos++;
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}
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}
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void TM1628::setCursor(byte pos){
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_curpos = pos;
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}
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/*********** mid level **********/
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void TM1628::sendData(byte addr, byte data) {
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sendCommand(0x44);
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digitalWrite(_stb_pin, LOW);
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send(0xC0 | addr);
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send(data);
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digitalWrite(_stb_pin, HIGH);
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}
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void TM1628::sendCommand(byte data) {
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digitalWrite(_stb_pin, LOW);
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send(data);
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digitalWrite(_stb_pin, HIGH);
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}
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void TM1628::setSeg(byte addr, byte num) {
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for(int i=0; i<7; i++){
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bitWrite(buffer[i*2], seg_addr[addr], bitRead(NUMBER_FONT[num],i));
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}
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}
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void TM1628::setChar(byte addr, byte chr) {
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for(int i=0; i<7; i++){
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bitWrite(buffer[i*2], seg_addr[addr], bitRead(FONT_DEFAULT[chr - 0x20],i));
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}
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update();
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}
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/************ low level **********/
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void TM1628::send(byte data) {
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for (int i = 0; i < 8; i++) {
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digitalWrite(_clk_pin, LOW);
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digitalWrite(_dio_pin, data & 1 ? HIGH : LOW);
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data >>= 1;
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digitalWrite(_clk_pin, HIGH);
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}
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}
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byte TM1628::receive() {
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byte temp = 0;
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// Pull-up on
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pinMode(_dio_pin, INPUT);
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digitalWrite(_dio_pin, HIGH);
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for (int i = 0; i < 8; i++) {
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temp >>= 1;
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digitalWrite(_clk_pin, LOW);
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if (digitalRead(_dio_pin)) {
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temp |= 0x80;
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}
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digitalWrite(_clk_pin, HIGH);
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}
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// Pull-up off
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pinMode(_dio_pin, OUTPUT);
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digitalWrite(_dio_pin, LOW);
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return temp;
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}

‎TM1628.h

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#ifndef TM1628_h
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#define TM1628_h
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#if defined(ARDUINO) && ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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#include "TM16XXFonts.h"
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#include "Print.h"
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//flags for turn on/off
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#define ON true
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#define OFF false
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//flags for indicating LEDs
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#define LED_SE0 0x00
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#define LED_SE1 0x01
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#define LED_SE2 0x02
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#define LED_SE3 0x03
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#define LED_SE4 0x04
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#define LED_SE5 0x05
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#define LED_SE6 0x06
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#define LED_SE7 0x07
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#define LED_DVD 0x08
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#define LED_VCD 0x09
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#define LED_MP3 0x0A
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#define LED_PLY 0x0B
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#define LED_PAU 0x0C
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#define LED_PBC 0x0D
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#define LED_RET 0x0E
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#define LED_DTS 0x0F
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#define LED_DDD 0x10
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#define LED_CL1 0x11
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#define LED_CL2 0x12
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class TM1628 : public Print
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{
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public:
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// init
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TM1628(byte _dio_pin, byte _clk_pin, byte _stb_pin);
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void begin(boolean active, byte intensity);
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void update();
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void clear();
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void setSeg(byte addr, byte num);
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void setChar(byte _curpos, byte chr);
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void setCursor(byte pos);
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virtual void write(byte chr);
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void setTime(int hour, int min, int sec);
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void setLED(byte led);
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void setLEDon(byte led);
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void setLEDoff(byte led);
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void setDisc(boolean onoff);
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byte getButtons();
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protected:
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byte receive();
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void sendData(byte addr, byte data);
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void sendCommand(byte data);
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void send(byte data);
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byte _dio_pin;
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byte _clk_pin;
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byte _stb_pin;
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byte _curpos;
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// byte buffer[];
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// byte seg_addr[];
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};
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#endif

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