IsegEncodeDigit() converts one digit to segment data.

uint8_t IsegEncodeDigit(uint8_t digit)

const uint8_t CLK_PIN = 14;
const uint8_t DIO_PIN = 15;
 
void setup() {
  IsegBegin(CLK_PIN, DIO_PIN, 100, 0);  // Set the CLK/DIO pins and device number of the TM1637 FND.
  IsegBrightness(5, true, 0);  // Set display brightness and on/off state.
}
 
void loop() {
  const uint16_t value = analogRead(A0);  // Read the raw analog value of the specified channel.
  uint8_t digits[4] = {
    IsegEncodeDigit((value / 1000) % 10),  // Convert one digit to segment data.
    IsegEncodeDigit((value / 100) % 10),  // Convert one digit to segment data.
    IsegEncodeDigit((value / 10) % 10),  // Convert one digit to segment data.
    IsegEncodeDigit(value % 10)  // Convert one digit to segment data.
  };
  IsegWrite(digits, 4, 0, 0);  // Output segment data at the specified position.
  delay(100);
}

• These commands are only for 4-digit FND displays with a TM1637 IC. They do not directly drive a generic multiplexed FND display.
• Use display commands after successfully calling IsegBegin().
• Initialization fails if CLK and DIO use the same pin, or if the device number is 7 or higher.
• length + position must be 4 or less. Numbers outside the range are not displayed, and false is returned.
• Communication may block execution for several ms. Do not call this from an interrupt service routine.
• Do not use the specified pins simultaneously for UART, PWM, encoders, external interrupts or other functions.
• Check the actual module and product manuals for FND power and signal voltages.

← Built-in Command List