Differences

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--- en-us_commands:reference:iclcdscrollleft [2026/09/08 00:53] – 바깥 편집 127.0.0.1
+++ en-us_commands:reference:iclcdscrollleft [2026/09/14 20:30] (current) – external edit 127.0.0.1
@@ Line 14: / Line 14: @@
 ===== Example =====
+This example connects a 20×4 PCF8574 character LCD at address ''0x27'' to the MPAINO-8A8R(T) I2C port. Change the ''IclcdBegin()'' arguments if your LCD has a different address or size.
 <code cpp>
-const uint8_t LCD_DEVICE = 0;
+bool lcdReady = false;
-const uint8_t degreeChar[8] = {0x0C, 0x12, 0x12, 0x0C, 0, 0, 0, 0};
 void setup() {
-  if (!IclcdBegin(0x27, 20, 4, true, LCD_DEVICE)) return;  // Set the address and dimensions of the PCF8574 character LCD.
+  lcdReady = IclcdBegin(0x27, 20, 4);  // Set the LCD address and display size.
-  IclcdCreateChar(0, degreeChar, LCD_DEVICE);  // Register a custom character.
+  if (lcdReady) IclcdPrint(F("Scrolling text"));  // Display text to observe the operation.
-  IclcdClear(LCD_DEVICE);  // Clear the LCD screen.
-  IclcdHome(LCD_DEVICE);  // Move the cursor to the first position.
-  IclcdDisplay(true, LCD_DEVICE);  // Turn the LCD display on or off.
-  IclcdCursor(false, LCD_DEVICE);  // Show or hide the cursor.
-  IclcdBlink(false, LCD_DEVICE);  // Enable or disable cursor blinking.
-  IclcdBacklight(true, LCD_DEVICE);  // Turn the LCD backlight on or off.
-  IclcdTextDirection(true, LCD_DEVICE);  // Set the direction in which characters are entered.
-  IclcdAutoscroll(false, LCD_DEVICE);  // Enable or disable autoscroll.
 }
 void loop() {
-  const float temperature = ntcReadf(0);  // Return the NTC 3950 10kΩ sensor temperature as a floating-point value in °C.
+  if (!lcdReady) return;
-  IclcdSetCursor(0, 0, LCD_DEVICE);  // Move the cursor to the specified column and row.
+  IclcdScrollLeft();  // Shift the display one column left.
-  IclcdPrint(F("Temperature"), LCD_DEVICE);  // Print a string or number to the LCD.
+  delay(500);
-  IclcdSetCursor(0, 1, LCD_DEVICE);  // Move the cursor to the specified column and row.
-  IclcdPrint(temperature, 1, LCD_DEVICE);  // Print a string or number to the LCD.
-  IclcdWrite(0, LCD_DEVICE);  // Output a character code or custom character.
-  IclcdPrint('C', LCD_DEVICE);  // Print a string or number to the LCD.
-  if (Iup(0, IdigitalRead(0, 5))) IclcdScrollLeft(LCD_DEVICE);  // Shift the displayed content one position left. / Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state. / Return true only at the instant the input changes from OFF to ON.
-  if (Iup(1, IdigitalRead(1, 5))) IclcdScrollRight(LCD_DEVICE);  // Shift the displayed content one position right. / Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state. / Return true only at the instant the input changes from OFF to ON.
-  if (Iup(2, IdigitalRead(2, 5))) IclcdCommand(0x02, LCD_DEVICE);  // Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state. / Send an LCD control command directly. / Return true only at the instant the input changes from OFF to ON.
 }
 </code>