invalid conversion from 'char*' to 'char' -fpermissive

Projects Programming
1

#include "SIM900.h"
#include <SoftwareSerial.h>
#include "sms.h"
SMSGSM sms;

int numdata;
boolean started=false;
char smsbuffer[160];
char n[20];

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);
#include "HX711.h"
int Weight = 0;

const int down = 7;
const int up = 6;
const int ok = 5;
const int cancel = 4;
const int numReadings = 20;

int p;
int denda;
//int ngirim;

int readings[numReadings];
int readIndex = 0;
int total = 0;
int weight = 0;
int berattot = 0;

void berat()
{

Weight = Get_Weight();
total = total - readings[readIndex];

readings[readIndex] = Weight;

total = total + readings[readIndex];

readIndex = readIndex + 1;

if (readIndex >= numReadings) {

readIndex = 0;
}

berattot = total / numReadings;
p = berattot / 10;
Serial.println(p);
delay(1);

lcd.setCursor(2,0);
lcd.print("BERAT: TON");

if (p < 0)
{//delay (100);
lcd.setCursor(9,0);
lcd.print("0"); }

if (p > 0)
{//delay (100);
lcd.setCursor(9,0);
lcd.print(p); }

delay(50);
//lcd.clear();
}

void setup()
{

Init_Hx711();
lcd.begin(20,4);

delay(3000);
Get_Maopi();
for (int thisReading = 0; thisReading < numReadings; thisReading++) {
readings[thisReading] = 0;
}

Serial.begin(9600);
Serial.println("GSM Shield testing.");

if (gsm.begin(2400)){
Serial.println("\nstatus=READY");
started=true;
}
else Serial.println("\nstatus=IDLE");

if(started){

// if (sms.SendSMS("+6285741119138", "Arduino SMS"))
// Serial.println("\nSMS sent OK");
}
}

void loop()
{
menu();
}

void menu()
{
MENU1:
lcd.setCursor(0,0);
lcd.print("PILIH JENIS TRUK");
lcd.setCursor(0,1);
lcd.print(">>Engkel");
lcd.setCursor(0,2);
lcd.print(" Tronton");
lcd.setCursor(0,3);
lcd.print(" Trailer");
if (digitalRead(up)==LOW)
{delay (500); lcd.clear();goto MENU3;}
if (digitalRead(down)==LOW)
{delay (500); lcd.clear();goto MENU2;}
if (digitalRead(ok)==LOW)
{delay (500); lcd.clear();goto KAT1;}
goto MENU1;

MENU2:
lcd.setCursor(0,0);
lcd.print("PILIH JENIS TRUK");
lcd.setCursor(0,1);
lcd.print(" Engkel");
lcd.setCursor(0,2);
lcd.print(">>Tronton");
lcd.setCursor(0,3);
lcd.print(" Trailer");
if (digitalRead(up)==LOW)
{delay (500); lcd.clear();goto MENU1;}
if (digitalRead(down)==LOW)
{delay (500); lcd.clear();goto MENU3;}
if (digitalRead(ok)==LOW)
{delay (500); lcd.clear();goto KAT2;}
goto MENU2;

MENU3:
lcd.setCursor(0,0);
lcd.print("PILIH JENIS TRUK");
lcd.setCursor(0,1);
lcd.print(" Engkel");
lcd.setCursor(0,2);
lcd.print(" Tronton");
lcd.setCursor(0,3);
lcd.print(">>Trailer");
if (digitalRead(up)==LOW)
{delay (500); lcd.clear();goto MENU2;}
if (digitalRead(down)==LOW)
{delay (500); lcd.clear();goto MENU1;}
if (digitalRead(ok)==LOW)
{delay (500); lcd.clear();goto KAT3;}
goto MENU3;

KAT1:
berat();

if (p > 20)
{lcd.clear(); delay (100);
lcd.setCursor(0,2);
lcd.print("OVERLOAD"); }

if (p > 5 && p < 20)
{lcd.clear(); delay (100);
lcd.setCursor(0,1);
lcd.print("OK Selamat Jalan >>>");}

denda = (p-20)*500;
Serial.println(denda);
lcd.setCursor(0,4);
lcd.print("DENDA: Rp ");

if (denda < 0) {delay (100);
lcd.setCursor(10,4);
lcd.print("0"); }

if (denda > 20) {delay (100);
lcd.setCursor(10,4);
lcd.print(denda); }

if (digitalRead(cancel)==LOW)
{delay (500); lcd.clear();goto MENU1;}
goto KAT1;

KAT2:
berat();

if (p > 27)
{lcd.clear(); delay (100);
lcd.setCursor(0,2);
lcd.print("OVERLOAD"); }

if (p > 5 && p < 27)
{lcd.clear(); delay (100);
lcd.setCursor(0,1);
lcd.print("OK Selamat Jalan >>>");}

denda = (p-27)*500;
Serial.println(denda);
lcd.setCursor(0,4);
lcd.print("DENDA: Rp ");

if (denda < 0) {delay (100);
lcd.setCursor(10,4);
lcd.print("0"); }

if (denda > 27) {delay (100);
lcd.setCursor(10,4);
lcd.print(denda); }

if (digitalRead(cancel)==LOW)
{delay (500); lcd.clear();goto MENU1;}
goto KAT2;

KAT3:
berat();

if (p > 30)
{lcd.clear(); delay (100);
lcd.setCursor(0,2);
lcd.print("OVERLOAD"); }

if (p > 5 && p < 30)
{lcd.clear(); delay (100);
lcd.setCursor(0,1);
lcd.print("OK Selamat Jalan >>>");}

denda = (p-30)*500;
Serial.println(denda);
lcd.setCursor(0,4);
lcd.print("DENDA: Rp ");
char ngirim = (char) denda;
String stringOne = String('ngirim');

if (denda < 0) {delay (100);
lcd.setCursor(10,4);
lcd.print("0"); }

if (denda > 30) {delay (100);
lcd.setCursor(10,4);
lcd.print(denda);

if(started){
sms.SendSMS("+6285741119138", (ngirim));}

if (digitalRead(cancel)==LOW)
{delay (500); lcd.clear();goto MENU1;}
goto KAT3;
}

void kirim()
{
if(started){

if(gsm.readSMS(smsbuffer, 160, n, 20))
{
Serial.println(n);
Serial.println(smsbuffer);
}
delay(1000);
}

}

invalid conversion from 'char*' to 'char' -fpermissive

I try to send data from load cell, but I get problem like this. how to resolve this problem ?

2

can you please put your LONG code into the right code brackets to make it readable? see How to use this forum - please read step 7.

can you print the full error code from your compiler. it will give you more information than this. it will tell you at which line of code, the variable that is being converted etc...

3

Please edit your post and use code tags

type
** **[code]** **
before your code
type
** **[/code]** **
after your code

Please provide links to the exact libraries that you use.

4

Somewhere in your code you are trying to use char variable (1 byte size) where is required an address of char (2 bytes on ATmega). Please use code tags for your code (leftmost button above edit window).
EDIT: Eh sorry, the opposite: you are trying to use address of char where is required a char.

5

I suppose you are using this library?

  [color=red]int[/color] denda;
...
  denda = (p-20)*500;
...
  denda = (p-27)*500;
...
 char ngirim = ([color=red]char[/color]) denda;

seems really really weird

and

char ngirim = (char) denda;
...
sms.SendSMS("+6285741119138", ([color=red]ngirim[/color]));}

is definitely (one of) your problem(s) as the signature of sendSMS() is

char SendSMS(char *number_str, [color=red]char *message_str[/color]);