chain 57 Report post Posted March 27, 2015 I have been unable to change the baud rate in my SERLCD_16_2_5V_M43 (Connected to Arduino)I followed instructions in Linksprite documentation...I used the following in Setup:void setup() { Serial.begin(9600);Serial.write(124);Serial.write(13);Serial.begin(2400);}Do I need to somehow exit the command mode ? Could you point me to a code example for changing the baud rate ? Share this post Link to post Share on other sites
chain 57 Report post Posted March 27, 2015 You can refer to this code example: (change baud rate to 19200) #include #define Baud_2400 0x0b#define Baud_4800 0x0c#define Baud_9600 0x0d#define Baud_14400 0x0e#define Baud_19200 0x0f #define txPin 2SoftwareSerial LCD = SoftwareSerial(0, txPin);// since the LCD does not send data back to the Arduino, we should only define the txPinconst int LCDdelay=10; // conservative, 2 actually worksvoid SetLcdBaud(int Baud){ unsigned int serialbaud; LCD.write(0x7C); LCD.write(Baud); switch(Baud) { case 0x0b : serialbaud = 2400; break; case 0x0c : serialbaud = 4800; break; case 0x0d : serialbaud = 9600; break; case 0x0e : serialbaud = 14400; break; case 0x0f : serialbaud = 19200; break; } LCD.begin(serialbaud); delay(100);} // wbp: goto with row & columnvoid lcdPosition(int row, int col) { LCD.write(0xFE); //command flag LCD.write((col + row*64 + 128)); //position delay(LCDdelay);}void clearLCD(){ LCD.write(0xFE); //command flag LCD.write(0x01); //clear command. delay(LCDdelay);}void backlightOn() { //turns on the backlight LCD.write(0x7C); //command flag for backlight stuff LCD.write(157); //light level. delay(LCDdelay);}void backlightOff(){ //turns off the backlight LCD.write(0x7C); //command flag for backlight stuff LCD.write(128); //light level for off. delay(LCDdelay);}void serCommand(){ //a general function to call the command flag for issuing all other commands LCD.write(0xFE);} void setup(){ pinMode(txPin, OUTPUT); LCD.begin(9600); SetLcdBaud(Baud_19200); delay(200); backlightOff() ; delay(1000); backlightOn() ; clearLCD(); lcdPosition(0,0); LCD.print("test baud rate 19200");} void loop(){} Share this post Link to post Share on other sites