Wireless NRF24L01 Con Temperatura

Multiple Nodes nRF24L01+ Wireless Temperature DS18B20 wit !rduino "N# $2 Transmitter Transmitter % 1 Re&ei'er(  11 January 2016 admin Arduino UNO, DS18B20, LCD Display , Multi Cann!ls , Multipl! Nod!s, n"#2$L01%,  &  &!mp!ratur! !mp!ratur!

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nRF24L01+  &!mp!ratur !mp!ratur! ! S!nsor DS18B20 & '2C LCD display 16(2 Arduino UNO $)*+ r!sistor

Li*rar n"#2$L01 Lirary "#2$ Lirary Dallas&!mp!ratur! Lirary Li-uidCrystal.'2C Lirary /ir! Lirary

Wirin, Wire nRF24L01+  to Arduino UNO GND <–> GND VCC <–> Arduino 3.3V CE <–> Arduino pin 9 CSN <–> Arduino pin 10 SCK <–> Arduino pin 13 MOS <–> Arduino pin 11 MSO <–> Arduino pin 1!

nRF2 4L01+ DS18B20 TX 1

nRF2 4L01+ DS18B20 TX 2

nRF24L01+ RX "Mu#tip#e Node

%$-ode Upload Code to TX 1 #include #include "nRF24L01.h" #include "RF24.h" #include #include

#define ONE_WIRE_BUS 2

OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

float temp1;

RF24 radio(9, 10); const uint64_t pipes[3] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0E2LL, 0xF0F0F0F0E3LL };

void setup(void) { Serial.begin(9600); sensors.begin(); radio.begin(); radio.setDataRate(RF24_250KBPS); radio.openWritingPipe(pipes[1]); radio.startListening(); }

void loop(void) { sensors.requestTemperatures(); temp1 = sensors.getTempCByIndex(0); radio.write(&temp1, sizeof(temp1)); delay(10); }

Upload Code to TX 2

#include #include "nRF24L01.h" #include "RF24.h" #include #include

#define ONE_WIRE_BUS 2

OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire);

float temp2;

RF24 radio(9, 10); const uint64_t pipes[3] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0E2LL, 0xF0F0F0F0E3LL };

void setup(void) { Serial.begin(9600); sensors.begin(); radio.begin(); radio.setDataRate(RF24_250KBPS); radio.openWritingPipe(pipes[2]); radio.startListening(); }

void loop(void) { sensors.requestTemperatures(); temp2 = sensors.getTempCByIndex(0); radio.write(&temp2, sizeof(temp2)); delay(10); }

Upload Code to RX (Multiple Nodes) #include #include #include #include #include #include

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Addr, En, Rw, Rs, d4, d5, d6, d7, backlighpin, polarity

float temp1, temp2;

RF24 radio(9, 10); const uint64_t pipes[3] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0E2LL, 0xF0F0F0F0E3LL };

void setup(void) { Serial.begin(9600); radio.begin(); radio.setDataRate(RF24_250KBPS); radio.openReadingPipe(1, pipes[1]); radio.openReadingPipe(2, pipes[2]); radio.startListening(); lcd.begin(16, 2); lcd.backlight(); lcd.clear(); lcd.print("nRF24L01+ Temp"); delay(1000); lcd.clear(); lcd.print("Connecting....."); delay(1000); }

void loop(void) { lcd.clear(); delay(500); if ( radio.available() ) {

delay(50); radio.read(&temp1, sizeof(temp1)); lcd.setCursor(0, 0); lcd.print("Temp 1"); lcd.setCursor(9, 0); lcd.print(temp1); lcd.print(" C");

delay(50); radio.read(&temp2, sizeof(temp2)); lcd.setCursor(0, 1); lcd.print("Temp 2"); lcd.setCursor(9, 1); lcd.print(temp2); lcd.print(" C"); } else { lcd.println("No radio available"); } delay(1000); }

DS18B20 nRF24L01+ Temperature wit L-D Displa &e'p 1 ('d &e'p ! on )CD Di$p#(*