Hello power broker, thank you very much for answering me and trying to help me, tremendous work you have done with the library, I hope to be able to use it, I have an elm327 v1.5 wifi connected to an esp8266 (nodemcu v3), and this esp8266 connected by usb to the pc from where I see the serial monitor. The code is the one you have put in the example and the error it gives me is timeout. I can connect to the elm327 from the pc via telnet without problems, as well as from the cell phone with the torque app and others. in advance thank you very much, below I leave the code used.
#include <ESP8266WiFi.h>
#include "ELMduino.h"
const char* ssid = "WiFi-OBDII";
//const char* password = "your-password";
//IP Adress of your ELM327 Dongle
IPAddress server(192, 168, 0, 10);
WiFiClient client;
ELM327 myELM327;
uint32_t rpm = 0;
void setup()
{
Serial.begin(115200);
// Connecting to ELM327 WiFi
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid);
// WiFi.begin(ssid, password); //Use this line if your ELM327 has a password protected WiFi
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("Connected to Wifi");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
if (client.connect(server, 35000))
Serial.println("connected");
else
{
Serial.println("connection failed");
ESP.reset();
}
myELM327.begin(client);
}
void loop()
{
float tempRPM = myELM327.rpm();
if (myELM327.status == ELM_SUCCESS)
{
rpm = (uint32_t)tempRPM;
Serial.print("RPM: "); Serial.println(rpm);
}
else
printError();
}
void printError()
{
Serial.print("Received: ");
for (byte i = 0; i < myELM327.recBytes; i++)
Serial.write(myELM327.payload[i]);
Serial.println();
if (myELM327.status == ELM_SUCCESS)
Serial.println(F("\tELM_SUCCESS"));
else if (myELM327.status == ELM_NO_RESPONSE)
Serial.println(F("\tERROR: ELM_NO_RESPONSE"));
else if (myELM327.status == ELM_BUFFER_OVERFLOW)
Serial.println(F("\tERROR: ELM_BUFFER_OVERFLOW"));
else if (myELM327.status == ELM_UNABLE_TO_CONNECT)
Serial.println(F("\tERROR: ELM_UNABLE_TO_CONNECT"));
else if (myELM327.status == ELM_NO_DATA)
Serial.println(F("\tERROR: ELM_NO_DATA"));
else if (myELM327.status == ELM_STOPPED)
Serial.println(F("\tERROR: ELM_STOPPED"));
else if (myELM327.status == ELM_TIMEOUT)
Serial.println(F("\tERROR: ELM_TIMEOUT"));
else if (myELM327.status == ELM_TIMEOUT)
Serial.println(F("\tERROR: ELM_GENERAL_ERROR"));
delay(100);
}
On the other hand, I would like to share a code that works in the configuration I have (elm327v1.5, esp8266nodemcu and pc) so I rule out that the problem is the hardware, but this code does not bring the information as I want, it returns it without format and in hex
#include <ESP8266WiFi.h>
const char* ssid = "WiFi-OBDII";
//const char* pass = "pass";
//ip ELM327
IPAddress server(192, 168, 0, 10);
boolean last_in = false;
WiFiClient client;
void setup() {
Serial.begin(9600);
delay(10);
Serial.println("");
Serial.println("");
Serial.println("Conectando a ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid);
// WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("Conectado a Wifi");
Serial.println("Direccion IP: ");
Serial.println(WiFi.localIP());
if (client.connect(server, 35000)) {
Serial.println("Conectado");
//Serial.println("<ATZ");
// Make a Request
//client.println("ATZ");
}
else {
Serial.println("Error de conexion");
ESP.reset();
}
}
void loop() {
if (!client.connected()) {
Serial.println("");
Serial.println("CLIENTE DESCONECTADO - RESETEANDO!");
client.stop();
ESP.reset();
}
// si hay bytes entrantes disponibles desde el servidor, léalos e imprímalos:
if (client.available()) {
if (!last_in) {
Serial.println("");
Serial.print(">");
last_in = true;
}
char c = client.read();
//Serial.print("");
//Serial.print(c, HEX);
//Serial.println("");
Serial.print(c);
}
// siempre que haya bytes en la cola de serie, léalos y envíelos al socket si está abierto:
while (Serial.available() > 0) {
if (last_in) {
//Serial.println("");
//Serial.print("<< Enviando request");
//Serial.println("");
last_in = false;
}
char inChar = Serial.read();
if (client.connected()) {
client.print(inChar);
Serial.println("");
}
}
}