Projekt:Tüftlerclub/Arduino

nRF24L01

Sender

#include <SPI.h> 
#include <RF24.h>

RF24 radio(7, 8); // (CE, CSN)

const byte address[6] = "1RF24";

void setup() {
  radio.begin(); 
  radio.setPALevel(RF24_PA_MAX); 
  radio.setChannel(125);
  radio.openWritingPipe(address); 
  radio.stopListening();
}

void loop() {
  const char text[] = "Moin"; 
  radio.write(&text, sizeof(text));
  delay(2000);
}

Empfänger

#include <SPI.h> 
#include <RF24.h>

RF24 radio(7, 8); // (CE, CSN)

const byte address[6] = "1RF24";

void setup() { 
  Serial.begin(115200); 
  radio.begin(); 
  radio.setPALevel(RF24_PA_MAX); 
  radio.setChannel(125);
  radio.openReadingPipe(0,address); 
  radio.startListening();
}

void loop() { 
  if(radio.available()){
    char text[33] = {0}; 
    radio.read(&text, sizeof(text)-1); 
    Serial.println(text);
  } 
}

RFID

DumpToSerial

#include <SPI.h>
#include <MFRC522.h>

const int resetPIN = 9;    
const int slavePIN = 10;  
 
MFRC522 mfrc522(slavePIN, resetPIN);  

void setup() {
  Serial.begin(9600);   
  SPI.begin();
  mfrc522.PCD_Init(); 
}

void loop() {
  if ( ! mfrc522.PICC_IsNewCardPresent()) {
    return;
  }

  if ( ! mfrc522.PICC_ReadCardSerial()) {
    return;
  }
  mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
}

UID

#include <SPI.h>
#include <MFRC522.h>

const int resetPIN = 9;    
const int slavePIN = 10;  
 
MFRC522 mfrc522(slavePIN, resetPIN);  
  
void setup() {
  Serial.begin(9600);   
  SPI.begin();  
  mfrc522.PCD_Init(); 
}

void loop() {
  if ( ! mfrc522.PICC_IsNewCardPresent()) {
    return; 
  }

  if ( ! mfrc522.PICC_ReadCardSerial()) {
    return; 
  }

  Serial.print("ID:"); 

  for (int i = 0; i < mfrc522.uid.size; i++) {
    Serial.print(mfrc522.uid.uidByte[i], HEX); 
    Serial.print(" "); 
  }
  
  Serial.println(); 
}

Bluetooth

Module

Typ: DSD TECH HM-11 Bluetooth 4.0 BLE-Modul

AT-Befehlssatz:

• AT+IMME1 -> start work after AT+START, AT+CON, AT+CONNL commands
• AT+ROLE1 -> master / central role
• AT+DISC? -> discovery scan
• AT+CON6C79B8B6DF44 -> connect an device with MAC address

1

• A5DFF72A-D084-473F-BO35-637025B24A85
• MAC: 6C79B8B6DF44

2

• A9BF45E6-7D70-4A9B-8A9B-0A213E7393D7
• MAC: 6C79B8B48559

Master

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(10, 11); // RX, TX

void setup() {
  BTSerial.begin(9600);
  BTSerial.print("AT");
  BTSerial.print("AT+IMME1");
  BTSerial.print("AT+ROLE1");
  BTSerial.print("AT+DISC?");
  delay(800);
  BTSerial.print("AT+CON6C79B8B6DF44");
  delay(800);
}

void loop() {
  BTSerial.print("Test");
  delay(1000);
}

Slave

#include <SoftwareSerial.h>

SoftwareSerial BTSerial(10, 11); // RX, TX

void setup() {
  Serial.begin(9600);
  delay(500);
  BTSerial.begin(9600);
}

void loop() {
 if (BTSerial.available())
    Serial.write(BTSerial.read());
}

IR-Empfang

#include <IRremote.h>

int IrWert = 0;
const int IrPin = 10;

void setup() {
   IrReceiver.begin(IrPin);
   Serial.begin(9600);
}

void loop() {
  if (IrReceiver.decode()) {
    IrReceiver.resume();
    IrWert = IrReceiver.decodedIRData.command; 
    Serial.print(IrWert);
    delay(500);
  }
}

Servomotor

#include <Servo.h>

Servo myservoA; 
Servo myservoB;

void setup() { 
myservoA.attach(9);
myservoB.attach(10); 
}

void servo(char servo, int pos, int msek) {
if (servo == 'A') {
myservoA.write(pos);
delay(msek);
}
if (servo == 'B') {
myservoB.write(pos);
delay(msek); 
}
if (servo == 'X') {
myservoA.write(pos); 
myservoB.write(pos); 
delay(msek);
}}

void loop() { 
servo('X',0,1000);
servo('X',180,1000);
}

Farbmischer

const int rSensor = A1; 
const int gSensor = A2; 
const int bSensor = A3; 

const int rPin = 9;
const int gPin = 10; 
const int bPin = 11;   

int rValue = 0; 
int gValue = 0; 
int bValue = 0; 

void setup() {
  pinMode(rPin, OUTPUT);
  pinMode(gPin, OUTPUT);
  pinMode(bPin, OUTPUT);
}

void loop() {
  rValue = analogRead(rSensor);
  gValue = analogRead(gSensor);
  bValue = analogRead(bSensor);
  
  rValue =  255 - (rValue / 4);
  gValue =  255 - (gValue / 4);
  bValue =  255 - (bValue / 4);
  
  analogWrite(rPin,rValue);
  analogWrite(gPin,gValue);
  analogWrite(bPin,bValue);
  
  delay(100);
}

• Arduino Cloud: Farbmischer