One step closer to a functional Moscow Time display. The plan is to use an ESP8266 so therefore I use a shift register even though the Arduino I am testing on now has enough outputs
Discussion
Does markdown "code" work? let's see 👇
``#define one_pin 4
#define ten_pin 5
#define hundred_pin 6
#define thousand_pin 7
int latch_pin = 8;
int clock_pin = 12;
int data_pin = 11;
byte common_cathodes[] = {one_pin, ten_pin, hundred_pin, thousand_pin};
// Array with the decimal value for the numbers that will be shown in the bubble display
const int num_array[] = {
243, // 0
66, // 1
217, // 2
218, // 3
106, // 4
186, // 5
59, // 6
194, // 7
251, // 8
234 // 9
};
const int display_delay = 1; // Delay
void setup() {
pinMode(latch_pin, OUTPUT);
pinMode(clock_pin, OUTPUT);
pinMode(data_pin, OUTPUT);
for (int i = 0; i < 4; i++) {
pinMode(common_cathodes[i], OUTPUT);
digitalWrite(common_cathodes[i], HIGH);
}
}
void loop() {
display(1337);
}
void display(int num) {
// Display a number on the bubble display
int one_num = num % 10;
int ten_num = (num / 10) % 10;
int hundred_num = (num / 100) % 10;
int thousand_num = (num / 1000) % 10;
int num_places[] = {one_num, ten_num, hundred_num, thousand_num};
for (int i = 0; i < 4; i++) {
digitalWrite(latch_pin, LOW); // Latch pin LOW
shiftOut(data_pin, clock_pin, LSBFIRST, num_array[num_places[i]]);
digitalWrite(common_cathodes[i], LOW); // Set the cathode to LOW to display the correct number
digitalWrite(latch_pin, HIGH); // Latch pin HIGH
delay(display_delay);
digitalWrite(common_cathodes[i], HIGH);
}
}``