EthercatDevice_DmpLCD.lcdPrint()

[EthercatDevice_DmpLCD_Generic]

Description

Print the specified string to the LCD display on the EtherCAT slave device.

Derived Class:

Syntax

int lcdPrint(const char *fmt, …);

Parameters

• [in] const char *fmt
  The string to be printed on the LCD display. This is a pointer to a null-terminated string containing the format specification for the output. The format string follows the same format as the printf function in C, allowing for insertion of variables and formatting options.
• [in] …
  This is a variable number of arguments that will be inserted into the formatted string according to the format specifiers in the fmt string.

Return Value

Return an error code. If the returned value is zero, it indicates a successful execution of this function.

Comment

This function must be called after a successful execution of EthercatMaster::begin(). This function is non-blocking and can be called within the Cyclic Callback.

Example

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_QECR00UN01 slave;

void CyclicCallback() {
  slave.update();
}

void setup() {
  master.begin();
  slave.attach(0, master);
  slave.lcdInit(ECAT_LCD_ILI9341_1);
  master.attachCyclicCallback(CyclicCallback);
  master.start();

  slave.lcdPrint("Hello World!\n");
}

void loop() {
  // ...
}

Please see EthercatDevice_DmpLCD_Generic Class for more QEC Stepper Drivers instructions and API usage.