Personal'm doing a project where I use 3 sensors and send their values ??to a 20x4 LCD but I are happening these problems described below:
Topic 1-I have for example the sensor to measure 23A then cut the chain getting to 0 but the lcd is 03 ie 3 does not disappear as I clean those 3 characters lcd whenever changes values ??or simply any other process.
Topic 2-I wanted to make a sort of table in LCD as shown in the picture and wanted to do vertical lines to separate columns from each other was just as the picture shows
Topic 3-line 3 column 0 upostamente should appear a P because it appears that (Square) messed up?
Also sending the code so that they can analyze:
Topic 1 ;
//-----------------------Sensor de corrente 235A(BAT)-----------------------------------------------------------
lcd.setCursor(3,1);
lcd.print(12); //Valor de tensão na bateria
valor235 = analogRead(A5); //Valor do pino Analógico 5
//Sinal entre 1V e 3V
//5V=1024 1.47mV = (0.80851024)/5 = 165.5808 //1.96-(0.2354.9)=0.8085
//5V=1024 2.45mV = (3.1151024)/5 = 638,952 ~639 //1.96+(0.2354.9)=3.115
minimo235=((1.86-(0.1*9.4))1024/5);
maximo235=((1.86+(0.19.4))*1024/5);
corrente235 = map(valor235, minimo235, maximo235, -235, 235); //Calculo
Serial.print("BAT:");
Serial.print(corrente235); //Apresentação dos resultados da corrente no serial monitor
Serial.print("A");
lcd.setCursor(3, 2);
lcd.print(corrente235); //Apresentação do resultado/temperatura no LCD
delay(2000); //Actualização dos dados a cada 2 segundo
PBAT=TBAT*corrente235; //Potência da bateria
Serial.print(PBAT);
lcd.setCursor(3,3);
lcd.print(PBAT);
//--------------------------------------------------------------------------------------------------------------------
Topic 2:
lcd.setCursor(18,0);
lcd.println("|");
lcd.setCursor(18,1);
lcd.println("|");
lcd.setCursor(18,2);
lcd.println("|");
lcd.setCursor(18,3);
lcd.println("|");
lcd.setCursor(13,0);
lcd.println("|");
lcd.setCursor(13,1);
lcd.println("|");
lcd.setCursor(13,2);
lcd.println("|");
lcd.setCursor(13,3);
lcd.println("|");
Tópic 3:
//-----------------------1ªColuna------------------------------------------------------------
lcd.setCursor(0,1);//Coluna 0,1 Linha 0 (V)
lcd.print("V= ");
lcd.setCursor(0,2);//Coluna 0,1 Linha 1 (I)
lcd.print("I=");
lcd.setCursor(0,3);//Coluna 0.1 Linha 2 (P)
lcd.print("P=");
Greetings
