/
receiver.ino
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/
receiver.ino
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// Feather9x_RX
#include <SPI.h>
#include <RH_RF95.h>
#include <Servo.h>
Servo myservo;
/* for Feather32u4 RFM9x */
#define RFM95_CS 8
#define RFM95_RST 4
#define RFM95_INT 7
// Set frequency
#define RF95_FREQ 915.0
// Singleton instance of the radio driver
RH_RF95 rf95(RFM95_CS, RFM95_INT);
// Blinky on receipt
#define LED 13
void setup() {
pinMode(LED, OUTPUT);
pinMode(RFM95_RST, OUTPUT);
digitalWrite(RFM95_RST, HIGH);
myservo.attach(12);
Serial.begin(115200);
while (!Serial) {
delay(1);
}
delay(100);
//reset
digitalWrite(RFM95_RST, LOW);
delay(10);
digitalWrite(RFM95_RST, HIGH);
delay(10);
while (!rf95.init()) {
Serial.println("LoRa radio init failed");
while (1);
}
Serial.println("LoRa radio init OK!");
if (!rf95.setFrequency(RF95_FREQ)) {
Serial.println("setFrequency failed");
while (1);
}
Serial.print("Set Freq to: ");
Serial.println(RF95_FREQ);
// The default transmitter power is 13dBm, using PA_BOOST.
// If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then
// you can set transmitter powers from 5 to 23 dBm:
rf95.setTxPower(5);
}
void loop() {
if (rf95.available()) {
// Should be a message for us now
uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf);
if (rf95.recv(buf, &len)){
int valor = buf[0]; //Received value
myservo.write(valor); //Value to servo
digitalWrite(LED, HIGH);
Serial.print("Received: ");
Serial.println(valor);
Serial.print("RSSI: ");
Serial.println(rf95.lastRssi(), DEC);
// Send a reply
uint8_t data[] = "Dato recibido.";
rf95.send(data, sizeof(data));
rf95.waitPacketSent();
Serial.println("Sent a reply");
digitalWrite(LED, LOW);
}
}
}