mirror of
https://github.com/RobTillaart/Arduino.git
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58 lines
1.1 KiB
Arduino
58 lines
1.1 KiB
Arduino
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//
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// FILE: TM1637_alpha.ino
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// AUTHOR: William F. Dudley Jr.
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// VERSION: 0.1.0
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// PURPOSE: demo TM1637 library
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// DATE: 2021-10-12
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// URL: https://github.com/RobTillaart/TM1637
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#include "TM1637.h"
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TM1637 TM;
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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TM.init(2, 3);
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TM.setBrightness(2);
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}
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void ascii_to_7segment(char *buff, uint8_t *data) {
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for(int8_t i = 0, j=5 ; j > -1 && i < 12 && buff[i] ; i++) {
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if(isalpha(buff[i])) { buff[i] = tolower(buff[i]); }
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if(buff[i] >= '0' && buff[i] <= '9') {
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data[j--] = buff[i] - '0';
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}
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else if(buff[i] >= 'a' && buff[i] <= 'f') {
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data[j--] = buff[i] - 'a' + 10;
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}
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else if(buff[i] >= 'g' && buff[i] <= 'z') {
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data[j--] = buff[i] - 'g' + 18;
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}
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else if(buff[i] == '.') {
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data[j+1] |= 0x80; // decimal point on previous digit
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}
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else {
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data[j--] = 0x10; // blank
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}
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}
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}
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void loop()
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{
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char buff[20];
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uint8_t data[10];
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strcpy(buff, "hello ");
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Serial.println("hello");
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ascii_to_7segment(buff, data);
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TM.displayRaw(data, -1);
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delay(1000);
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TM.displayClear();
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delay(1000);
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}
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// -- END OF FILE --
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