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Problemas com codigo Arduino
Estou tendo um problema com o seguinte código, ele deveria enviar os dados lido pelo sensor de temperatura por meio de comunicação serial, no entanto não estou conseguindo localizar/corrigir o erro indicado quando o código é verificado pela IDE do Arduino.
#include <FloatToString.h>
#include "DHT.h"
#define DHTTYPE DHT11
#define DHTPIN 3
DHT dht(DHTPIN, DHTTYPE);
int led = 2; // Pino do led branco
char comando = '0';
char buffer[25];
void setup() {
Serial.begin(9600); // inicializa a comunicação serial na velocidade 9600
pinMode(led, OUTPUT); //<-l
digitalWrite(led, LOW); //<-l
dht.begin();
}
void loop() {
int estadoLed = 0;
char c = Serial.read();
if (c != NULL) {
if (c != comando) {
comando = c;
}
}
float u = dht.readHumidity();
float t = dht.readTemperature();
Serial.print(comando);
if (comando == '1'){ // se na serial receber o caracter 'a'
if ( estadoLed = 0) {
estadoLed = 1;
digitalWrite(led, HIGH);
}
Serial.write('t');
Serial.write((floatToString(buffer,t, 2)));
Serial.write('u');
Serial.write((floatToString(buffer,u, 2)));
}
else { // se na serial receber o caracter 'a'
if ( estadoLed = 1) {
estadoLed = 0;
digitalWrite(led, LOW);
}
}
delay(2000);
}
Respostas a este tópico
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Permalink Responder até mineirin RV em
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Oi LOS, boa tarde,
só faltou você dizer qual é o erro.
Rui
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Permalink Responder até Lucas Oliveira em
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Faltou mesmo citar os erros,
Arduino: 1.6.5 (Windows 7), Placa:"Arduino/Genuino Uno"
In file included from sketch_oct26a.ino:1:0:
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:2:1: error: expected unqualified-id before '<' token
<!-- saved from url=(0072)http://playground.arduino.cc/Main/FloatToString?action=sourceblock&... -->
^
In file included from C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:12:0,
from sketch_oct26a.ino:1:
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:151:61: error: 'size_t' has not been declared
extern void *bsearch(const void *__key, const void *__base, size_t __nmemb,
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:152:8: error: 'size_t' has not been declared
size_t __size, int (*__compar)(const void *, const void *));
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:183:33: error: 'size_t' has not been declared
extern void qsort(void *__base, size_t __nmemb, size_t __size,
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:183:49: error: 'size_t' has not been declared
extern void qsort(void *__base, size_t __nmemb, size_t __size,
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:298:21: error: 'size_t' was not declared in this scope
extern void *malloc(size_t __size) __ATTR_MALLOC__;
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:310:8: error: 'size_t' does not name a type
extern size_t __malloc_margin;
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:327:21: error: 'size_t' was not declared in this scope
extern void *calloc(size_t __nele, size_t __size) __ATTR_MALLOC__;
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:327:36: error: 'size_t' was not declared in this scope
extern void *calloc(size_t __nele, size_t __size) __ATTR_MALLOC__;
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:327:51: error: expression list treated as compound expression in initializer [-fpermissive]
extern void *calloc(size_t __nele, size_t __size) __ATTR_MALLOC__;
^
c:\program files (x86)\arduino\hardware\tools\avr\avr\include\stdlib.h:346:35: error: 'size_t' has not been declared
extern void *realloc(void *__ptr, size_t __size) __ATTR_MALLOC__;
^
In file included from sketch_oct26a.ino:1:0:
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h: In function 'char* floatToString(char*, float, int, int, bool)':
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:29:16: error: 'lt' was not declared in this scope
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:29:18: error: expected ')' before ';' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:29:21: error: expected ';' before ')' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:32:20: error: 'lt' was not declared in this scope
for (i = 0; i < places; i++)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:32:30: error: expected ')' before ';' token
for (i = 0; i < places; i++)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:32:35: error: expected ';' before ')' token
for (i = 0; i < places; i++)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:38:16: error: 'lt' was not declared in this scope
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:38:18: error: expected ')' before ';' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:38:21: error: expected ';' before ')' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:40:27: error: 'lt' was not declared in this scope
while ((tens * 10.0) <= tempfloat) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:40:29: error: expected ')' before ';' token
while ((tens * 10.0) <= tempfloat) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:40:30: error: expected primary-expression before '=' token
while ((tens * 10.0) <= tempfloat) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:40:41: error: expected ';' before ')' token
while ((tens * 10.0) <= tempfloat) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:45:20: error: 'gt' was not declared in this scope
if (tenscount > 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:45:22: error: expected ')' before ';' token
if (tenscount > 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:45:25: error: expected ';' before ')' token
if (tenscount > 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:47:5: error: 'else' without a previous 'if'
else
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:50:16: error: 'lt' was not declared in this scope
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:50:18: error: expected ')' before ';' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:50:21: error: expected ';' before ')' token
if (value < 0)
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:55:19: error: 'gt' was not declared in this scope
if (minwidth > charcount){
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:55:21: error: expected ')' before ';' token
if (minwidth > charcount){
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:55:32: error: expected ';' before ')' token
if (minwidth > charcount){
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:60:16: error: 'gt' was not declared in this scope
if (extra > 0 and rightjustify) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:60:18: error: expected ')' before ';' token
if (extra > 0 and rightjustify) {
^
C:\Program Files (x86)\Arduino\libraries\FloatToString/FloatToString.h:60:38: error: expected ';' before ')' token
if (extra > 0 and rightjustify) {
^
sketch_oct26a:46: error: expected '}' at end of input
expected '}' at end of input
Este relatório deveria ter mais informações
"Mostrar saída verbosa durante a compilação"
habilitado em Arquivo > Preferências.Já tentei analisar o relatório de erros mas não consegui identificar qual a causa
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Permalink Responder até Eduardo Silva em
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Erro na biblioteca FloatToString, procura outra, pois está está detonada, tente usar um método para transformar de float para string, mais acha que é preciso fazer isso ? mostra direto na serial.
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Permalink Responder até Lucas Oliveira em
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Eu já troquei a biblioteca, vou tentar achar uma nova. Já fiz o teste sem efetuar a conversação mas ele da problema na hora do envio dos dados. Qual outro método você indicaria para a conversação?
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Permalink Responder até Lucas Oliveira em
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Arrumei os erros que estava tendo, depois de muita pesquisa percebi que estava errando por estar tentando complicar onde não deveria, em vez de converter achei uma maneira de enviar a variável diretamente para a comunicação serial, caso alguém precise segue o código.
#include "DHT.h" // definiçoes do DHT11
#define DHTTYPE DHT11
#define DHTPIN 3
DHT dht(DHTPIN, DHTTYPE);
int led = 2; // pino do led
char comando = '0'; // variaveis de controle
int estadoLed = 0;
void setup() {
Serial.begin(9600); // inicializaçao comunicacao serial
pinMode(led, OUTPUT); // inicializaçao led
digitalWrite(led, LOW);
dht.begin();// inicializaçao DHT11
}
void loop() {
char c = Serial.read(); //leitura dos dados recebidos
if ((c == '0' || c == '1') && (c != comando)) {
comando = c;
Serial.print(comando); // comparaçao e filtragem dos dados recebidos
}
float u = dht.readHumidity(); // leitura e impresao dos dados do DHT11
float t = dht.readTemperature();
if (comando == '1') { // verificaçao do comando
if ( estadoLed == 0) {
estadoLed = 1; // controle do led
digitalWrite(led, HIGH);
}
Serial.write('t'); // envio dos dados
Serial.print(t,BIN);
delay(1000);
Serial.write('u');
Serial.print(u,BIN);
}
else if (comando == '0') {
if ( estadoLed == 1) {
estadoLed = 0;
digitalWrite(led, LOW);
}
Serial.write('0');
}
delay(1000);
}
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