Hey guys i recently bought an emulator from the freematics its called obd2 emulator mk2.
I connected it to my Arduino UNO with wires and it doesn't seem to be working x_x
please help someone.
Here's my code ,
#include <Arduino.h>
#include <Wire.h>
#include <OBD.h>
COBDI2C obd;
void setup()
{ Serial.begin(38400);
Serial.println("ATZ"); //shoud initialize the emulator
Serial.println("ATE1"); // turn on character echoeing
// use the debug LED as output
pinMode(13, OUTPUT);
// start communication with OBD-II UART adapter
obd.begin();
// initiate OBD-II connection until success
while (!obd.init());
}
void loop()
{
int value;
if (obd.read(PID_RPM, value)) {
// RPM is successfully read and its value stored in variable 'value'
// light on LED when RPM exceeds 3000
digitalWrite(13, value > 3000 ? HIGH : LOW);
delay (2000);
}
}
The emulator comes with a GUI , when i increase rpm in it to above 3000 the led should light up but the led doesnt light up. can someone tell me what i am dong wrong?
heres the serial interface commands for the emulator:
Serial Control Interface
========================
The serial control interface is implemented as AT command-set containing following commands. The baud rate is 38400bps. All commands and responses are terminated with '\r' (ASCII: 0xd).
ATZ
Function: initializing the emulator
Response: the name and version of the emulator
ATE0/ATE1
Function: turning off/on character echoing
Response: OK
ATSET BUS [Protocol]
Function: changing the simulated protocol (default is CAN bus 11-bit/500Kbps)
Argument: a string that specifies the protocol which can be one of the following:
CAN_11B_500K
CAN_29B_500K
CAN_11B_250K
CAN_29B_250K
KWP2000_FAST
KWP2000_5BPS
ISO9141_2
Response: OK or Error
ATSET DTC=[OBD-II Trouble Code]
Function: setting a DTC (up to 6 allowed)
Argument: a code that identifies a malfunction or failure of a vehicle component (refer to this website)
Response: OK or Error
ATSET VIN=[Vehicle Identification Number]
Function: setting the emulated VIN
Argument: a 17-digit vehicle identification number
Response: OK or Error
ATSET [PID]=[Value]
Function: setting the value of an OBD-II PID
Arguments:
PID: a 4-digit HEX number specifying an OBD-II PID
Value£º the value of the OBD-II-PID
Response: OK or Error
ATGET [PID]
Function: retrieving the current value of an OBD-II PID
Argument: a 4-digit HEX number specifying an OBD-II PID
Response: The raw HEX data of the requested OBD-II PID
I have attached the layout of the connections .
