Method sendCommand_Blocking

src/ELMduino.cpp:2420–2428

obd_rx_states ELM327::sendCommand_Blocking(const char* cmd) Description: ------------ * Sends a command/query and waits for a respoonse (blocking function) Sometimes it's desirable to use a blocking command, e.g when sending an AT command. This function removes the need for the caller to set up a loop waiting for the command to finish. Caller is free to parse the payload

  * int8_t - the ELM_XXX status of getting the OBD response
*/
int8_t ELM327::sendCommand_Blocking(const char *cmd)
{
    sendCommand(cmd);
    uint32_t startTime = millis();
    while (get_response() == ELM_GETTING_MSG) {
        if (millis() - startTime > timeout_ms) break;
    }
    return nb_rx_state;
}

/*
 obd_rx_states ELM327::get_response(void)