ino – Wenzlaff.de – Rund um die Programmierung

Es können mit diesen günstigen Modulen Geräusche analog oder auch digital drahtlos übertragen werden.

Die VirtualWire Library kann für die Ansteuerung verwendet werden. Hier ein Beispiel mit dem Arduino der Raspberry Pi würde natürlich auch gehen.

Tech. Daten

Empfänger
1.Product Model: MX-05V
2.Operating voltage: DC5V
3.Quiescent Current: 4MA
4.Receiving frequency: 315 MHZ (in Deutschland nicht zugelassen, dort z.B. 433 Mhz verwenden)
5.Receiver sensitivity:-105DB
6.Size: 30 * 14 * 7mm
7.External antenna: 32CM single core wire, wound into a spiral

Sender
1.Product Model: MX-FS-03V
2.Launch distance :20-200 meters (different voltage, different results)
3.Operating voltage :3.5-12V
4.Dimensions: 19 * 19mm
5.Operating mode: AM
6.Transfer rate: 4KB / S
7.Transmitting power: 10mW
8.Transmitting frequency: 315 M (in Deutschland nicht zugelassen, dort z.B. 433 Mhz verwenden)
9.An external antenna: 25cm ordinary multi-core or single-core line
10.Pinout from left → right: (DATA; VCC; GND)

Mikrofon
LM393 oder KY-038

Das Sender Programm, das in den Arduino geflasht werden muss:

/*
  TWSendRawSound 
  
  Beschreibung: Dieses Programm liesst die Daten von dem Soundsensor analog ein und sendet Signale per WiFi.
  
  Folgende Verbindungen sind noetig:
  
  Arduino Nano: A3 auf PIN 2 OUT
               +5v auf PIN 3 +5 Volt
               GND auf PIN 1 GND
                         
               
  Serielle Konsole auf 9600 Baud stellen.
  
  Compile mit Arduino 1.6.2 IDE. Einstellung: Board Arduino Nano
  
  Copyright (C) 2015 Thomas Wenzlaff http://www.wenzlaff.de
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see {http://www.gnu.org/licenses/}.
 */

#include <VirtualWire.h>

// Baud Rate zum Host PC, evl. aendern
const long BAUD_RATE = 9600L;

// Baud Rate zum Virtual Wirer
const int BAUD_VIRTUAL_WIRE = 2000;

// PIND zu Virtual Wire
const int VIRTUAL_WIRE_PIN = 12;

// SOUND Sensor an analog Pin 3
const int SOUND_SENSOR_PIN = 3;

void sendString(String message, bool wait)
{
  byte messageLength = message.length() + 1; 

  // convert string to char array
  char charBuffer[messageLength]; 
  message.toCharArray(charBuffer, messageLength);

  vw_send((uint8_t *)charBuffer, messageLength); 

  if (wait) vw_wait_tx(); 
}
 
void setup() {
  
    Serial.begin(BAUD_RATE);
    Serial.println("Starte TWSendRawSound V. 1.0 von wenzlaff.info");
    pinMode(SOUND_SENSOR_PIN, INPUT);
  
    vw_set_tx_pin(VIRTUAL_WIRE_PIN); 
    vw_setup(BAUD_VIRTUAL_WIRE);
}
 
void loop() {
    // analog
    int sensorDaten = analogRead(SOUND_SENSOR_PIN); 
    // digital würde auch gehen mit
    // int sensorDaten =digitalRead(soundSensor);
    // dann aber den digitalen Pin auf der anderen Seite des Nano verwenden
    if (sensorDaten <= 1000){ //rausche verhindern
      // ueber WIFI senden
      String data =  String(sensorDaten, DEC); 
      sendString(data, true); 
      }
  
}

TWSendRawSound

Beschreibung: Dieses Programm liesst die Daten von dem Soundsensor analog ein und sendet Signale per WiFi.

Folgende Verbindungen sind noetig:

Arduino Nano: A3 auf PIN 2 OUT

+5v auf PIN 3 +5 Volt

GND auf PIN 1 GND

Serielle Konsole auf 9600 Baud stellen.

Compile mit Arduino 1.6.2 IDE. Einstellung: Board Arduino Nano

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program. If not, see {http://www.gnu.org/licenses/}.

#include <VirtualWire.h>

// Baud Rate zum Host PC, evl. aendern

const long BAUD_RATE = 9600L;

// Baud Rate zum Virtual Wirer

const int BAUD_VIRTUAL_WIRE = 2000;

// PIND zu Virtual Wire

const int VIRTUAL_WIRE_PIN = 12;

// SOUND Sensor an analog Pin 3

const int SOUND_SENSOR_PIN = 3;

void sendString(String message, bool wait)

{

byte messageLength = message.length() + 1;

// convert string to char array

char charBuffer[messageLength];

message.toCharArray(charBuffer, messageLength);

vw_send((uint8_t *)charBuffer, messageLength);

if (wait) vw_wait_tx();

}

void setup() {

Serial.begin(BAUD_RATE);

Serial.println("Starte TWSendRawSound V. 1.0 von wenzlaff.info");

pinMode(SOUND_SENSOR_PIN, INPUT);

vw_set_tx_pin(VIRTUAL_WIRE_PIN);

vw_setup(BAUD_VIRTUAL_WIRE);

}

void loop() {

// analog

int sensorDaten = analogRead(SOUND_SENSOR_PIN);

// digital würde auch gehen mit

// int sensorDaten =digitalRead(soundSensor);

// dann aber den digitalen Pin auf der anderen Seite des Nano verwenden

if (sensorDaten <= 1000){ //rausche verhindern

// ueber WIFI senden

String data = String(sensorDaten, DEC);

sendString(data, true);

}

Der ganze Aufbau des Senders:

Der Arduino:

Das Micro im Detail:

Das Empfänger Programm in den Empfänger Arduino flashen. In dieser Version werden die Daten nur in der Konsole ausgegeben. Cool…

/*
  TWSoundEmpfang.ino
  
  Der Empfaenger der Sound Auswertung..
  
  Serielle Konsole auf 9600 Baud stellen.
  
  Compile mit Arduino 1.6.2 IDE. Einstellung: Board Arduino Nano, Prozessor Arduino ATMega328, Programmer USBtinyISP
  
  Copyright (C) 30.08.2015 Thomas Wenzlaff http://www.wenzlaff.de
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see {http://www.gnu.org/licenses/}.
 */

#include <VirtualWire.h>

const int led_pin = 13;
const int transmit_pin = 12;
const int receive_pin = 11;
const int transmit_en_pin = 3;

byte message[VW_MAX_MESSAGE_LEN]; // Buffer fuer die eintreffenden Nachrichten
byte messageLength = VW_MAX_MESSAGE_LEN; // die Groesse der Nachricht

void setup()
{
    delay(1000);
    Serial.begin(9600);	
    Serial.println("Starte TWSoundEmpfaenger V. 1.0 von wenzlaff.info");

    vw_set_tx_pin(transmit_pin);
    vw_set_rx_pin(receive_pin);
    vw_set_ptt_pin(transmit_en_pin);
    vw_set_ptt_inverted(true); // fuer DR3100
    vw_setup(2000);	 // Bits per sec
    
    Serial.println("OK");

    vw_rx_start();
}

void loop()
{
  if (vw_get_message(message, &messageLength)) // non-blocking
  {
    digitalWrite(led_pin, HIGH);
    // Serial.print("OK: ");
    for (int i = 0; i < messageLength; i++)
    {
      Serial.write(message[i]);
    }
    digitalWrite(led_pin, LOW);
    Serial.println();
  }
  
}

TWSoundEmpfang.ino

Der Empfaenger der Sound Auswertung..

Serielle Konsole auf 9600 Baud stellen.

Compile mit Arduino 1.6.2 IDE. Einstellung: Board Arduino Nano, Prozessor Arduino ATMega328, Programmer USBtinyISP

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program. If not, see {http://www.gnu.org/licenses/}.

#include <VirtualWire.h>

const int led_pin = 13;

const int transmit_pin = 12;

const int receive_pin = 11;

const int transmit_en_pin = 3;

byte message[VW_MAX_MESSAGE_LEN]; // Buffer fuer die eintreffenden Nachrichten

byte messageLength = VW_MAX_MESSAGE_LEN; // die Groesse der Nachricht

void setup()

{

delay(1000);

Serial.begin(9600);

Serial.println("Starte TWSoundEmpfaenger V. 1.0 von wenzlaff.info");

vw_set_tx_pin(transmit_pin);

vw_set_rx_pin(receive_pin);

vw_set_ptt_pin(transmit_en_pin);

vw_set_ptt_inverted(true); // fuer DR3100

vw_setup(2000); // Bits per sec

Serial.println("OK");

vw_rx_start();

}

void loop()

{

if (vw_get_message(message, &messageLength)) // non-blocking

{

digitalWrite(led_pin, HIGH);

// Serial.print("OK: ");

for (int i = 0; i < messageLength; i++)

{

Serial.write(message[i]);

}

digitalWrite(led_pin, LOW);

Serial.println();

}

Reichweite:
Bisher habe ich die Daten nur von einem Raum in den anderen übertragen. Weiter Tests folgen…

Schlagwort: ino

Arduino: Drahtlos senden von Geräuschen (analog oder digital)