Hello Arduino forum!
I have a little problem with a project i wanna build.
If i change the display from parallex to a lcd keypad shield i get some strange characters on the display.
Can someone look at the code of there's a newbie problem?
Thanks!
this is the project i trying to get working: Reactive Targets for 6mm Airsoft and NERF®
Can someone look at the code of there's a newbie problem?
Not after you put it in the rubbish bin. Use Reply, and the link below the text area to post your code HERE.
here you go
#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 4, 5, 6, 7); // select the pins used on the LCD panel
// define some values used by the panel and buttons
int lcd_key = 0;
int adc_key_in = 0;
#define btnRIGHT 0
#define btnUP 1
#define btnDOWN 2
#define btnLEFT 3
#define btnSELECT 4
#define btnNONE 5
int read_LCD_buttons(){ // read the buttons
adc_key_in = analogRead(0); // read the value from the sensor
// my buttons when read are centered at these valies: 0, 144, 329, 504, 741
// we add approx 50 to those values and check to see if we are close
// We make this the 1st option for speed reasons since it will be the most likely result
if (adc_key_in > 1000) return btnNONE;
// For V1.0 comment the other threshold and use the one below:
if (adc_key_in < 50) return btnRIGHT;
if (adc_key_in < 195) return btnUP;
if (adc_key_in < 380) return btnDOWN;
if (adc_key_in < 555) return btnLEFT;
if (adc_key_in < 790) return btnSELECT;
return btnNONE; // when all others fail, return this.
}
const boolean inputMode = HIGH;// high for buttons LOW for piezo
const int numPorts=2;
int led[numPorts]={31,33};
int ins[numPorts]={A8,A9};
int goButton=btnSELECT;
int rotarySwitch[3]={22,24,26};
int theDelay=1;
unsigned long time1;
unsigned long time2;
float interval1;
void setup()
{
pinMode(goButton,INPUT);
digitalWrite(goButton,HIGH);
for (int i=0; i<numPorts; i++)
{
pinMode(led[i], OUTPUT);
pinMode(ins[i],INPUT);
//if (inputMode==HIGH) digitalWrite(ins[i],HIGH); // activate internal pullup;
}
for (int i=0; i<3; i++)
{
pinMode(rotarySwitch[i],INPUT);
digitalWrite(rotarySwitch[i],HIGH);//internal pullup
}
Serial.begin(9600);
lcd.print(0x0C); delay(5);
doPost();
lcd.print(0x0C); delay(5);
lcd.print(0xFA); //define custom character 2
//Now send the eight data bytes
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00011111);
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00000000);
lcd.print(B00011111);
//Serial1.write(0x02); //Display the new custom character 2
lcd.print(0x11);
lcd.print(0x0C); delay(5);
// 0000000000111111
// 0123456789012345
lcd.println("Select a mode ");
lcd.println("then press GO ");
}
void loop()
{
//Serial1.write(0x12);
//delay(1000);
lcd.print(0x0C); delay(5);
// 0000000000111111
// 0123456789012345
lcd.println("Select a mode ");
lcd.println("press RUN ");
while ((PINC & B00010000));
//doRapidFire();
if (digitalRead(rotarySwitch[0])==LOW) doQuickDraw();
else if (digitalRead(rotarySwitch[1])==LOW) doTimedMode();
else if (digitalRead(rotarySwitch[2])==LOW) doRapidFire();
//doQuickDraw();
//doTimedMode();
//doRapidFire();
}
void doTimedMode()
{
randomSeed(millis());
int currentPort=random(4);
int newPort=random(4);
int maxRounds=32;
int hitCounter=0;
time1=millis();
interval1=0;
lcd.print(0x0C); delay(5);
// 0000000000111111
lcd.println("Timed mode");
delay(3000);
lcd.print(0x0C); delay(5);
lcd.print(0xDF); // C note
lcd.println("GO");
while (interval1 < 10000) // 10 seconds
{
//time1=millis();
digitalWrite(led[currentPort],HIGH);
switch (currentPort)
{
case 0:
while (!(PINC & B00000001));
break;
case 1:
while (!(PINC & B00000010));
break;
case 2:
while (!(PINC & B00000100));
break;
case 3:
while (!(PINC & B00001000));
break;
}
hitCounter++;
//delay(1000);
time2=millis();
interval1=(time2-time1);
digitalWrite(led[currentPort],LOW);
lcd.print(0x0C); delay(5);
// 0000000000111111
lcd.print("Hits: ");
lcd.println(hitCounter,DEC);
newPort=random(4);
while (newPort==currentPort) newPort=random(4);
currentPort=newPort;
}
lcd.print(0x0C); delay(5);
lcd.print(hitCounter,DEC);
lcd.println(" Hits");
lcd.print(0x0D);
lcd.println("in 10Secs");
delay(5000);
}
void doRapidFire()
{
randomSeed(millis());
int currentPort=random(4);
int newPort=random(4);
int maxRounds=32;
time1=millis();
lcd.print(0x0C); delay(5);
// 0000000000111111
lcd.println("Rapid Fire mode");
delay(2000);
lcd.print(0xDF); // C note
for (int i=0; i<maxRounds; i++)
{
lcd.print(0x0C); delay(10);
// 0000000000111111
lcd.println("Rapid Fire mode");
lcd.print("Round ");
lcd.print(i+1,DEC);
lcd.print(" of ");
lcd.print(maxRounds,DEC);
lcd.println("");
digitalWrite(led[currentPort],HIGH);
switch (currentPort)
{
case 0:
while (!(PINC & B00000001));
break;
case 1:
while (!(PINC & B00000010));
break;
case 2:
while (!(PINC & B00000100));
break;
case 3:
while (!(PINC & B00001000));
break;
}
//delay(1000);
//interval1=interval1+0.00001;
digitalWrite(led[currentPort],LOW);
newPort=random(4);
while (newPort==currentPort) newPort=random(4);
//newPort=3;
currentPort=newPort;
}
time2=millis();
interval1=(time2-time1);
interval1=interval1/1000;
lcd.print(0x0C); delay(5);
lcd.println("Rapid Time:"); lcd.print(0x0D);
lcd.print(interval1,4);
lcd.println(" secs");
delay(5000);
}
void doQuickDraw()
{
randomSeed(millis());
int firstTime=true;
int currentPort=random(4);
int maxRounds=8;
lcd.print(0x0C); delay(5);
lcd.println("Quickdraw mode ");
delay(2000);
for (int i=0; i<maxRounds; i++)
{
lcd.print(0x0C); delay(5);
lcd.println("Quickdraw mode ");
lcd.print("Round ");
lcd.print(i+1,DEC);
lcd.print(" of ");
lcd.print(maxRounds,DEC);
lcd.println("");
delay(random(3000)+1000);
if (firstTime==true) { lcd.print(0xDF); firstTime=false; }// C note
time1=millis();
digitalWrite(led[currentPort],HIGH);
switch (currentPort)
{
case 0:
while (!(PINC & B00000001));
break;
case 1:
while (!(PINC & B00000010));
break;
case 2:
while (!(PINC & B00000100));
break;
case 3:
while (!(PINC & B00001000));
break;
}
//delay(1000);
time2=millis();
interval1=(time2-time1);
interval1=interval1/1000;
digitalWrite(led[currentPort],LOW);
lcd.print(0x0C); delay(5);
lcd.println("Quickdraw Time: ");
lcd.print(interval1,3);
lcd.println(" seconds");
delay(2000);
currentPort=random(4);
}
delay(5000);
}
void doPost()
{
lcd.print(0xD2); // 1/16 note
lcd.print(0xE3);//E
//delay(100);
lcd.print(0xDC);//A
//delay(100);
lcd.print(0xDE);//B
for (int lop=0; lop<20; lop++)
{
theDelay+=10;
if (theDelay>500) theDelay=1;
for (int i=0; i<numPorts; i++)
{
//if (digitalRead(ins[i])==HIGH)
{
digitalWrite(led[i], HIGH); // turn the LED on (HIGH is the voltage level)
}
}
delay(theDelay); // wait for a second
for (int i=0; i<numPorts; i++)
{
digitalWrite(led[i], LOW); // turn the LED off by making the voltage LOW
}
delay(theDelay); // wait for a second
}
}
There are two or more stickies at the top of the forum. It is quite clear that you didn't read them. If you thought that there was some reason that they didn't apply to you, you were wrong.
Read them and post your code PROPERLY. I am 100% certain that you code does NOT look like that.
Consult the documentation for the pin numbers of the two LCD displays. I'll bet they're different.
The numbers in the code are the ones for the new display.
If i change the display from parallex to a lcd keypad shield i get some strange characters on the display.
Are they from the control characters you are sending it?
No, they are no control characters.
They work on other codes without problems
No, they are no control characters.
Really? What's this, then?
lcd.print(0x0C); delay(5);
lcd.print(0xFA); //define custom character 2
//Now send the eight data bytes
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00011111);
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00000100);
lcd.print(B00000000);
lcd.print(B00011111);
//Serial1.write(0x02); //Display the new custom character 2
lcd.print(0x11);
lcd.print(0x0C);
so i have to edit that part, how can i do that?
how can i do that?
Start with an example sketch written for the new LCD.
You get the strange characters on your display due to the lcd.println() function.
Look up the documentation for this function and you will be able to determine why it produces strange characters.
Hint: You won't find any documentation
Don