87 lines
2.1 KiB
Arduino
87 lines
2.1 KiB
Arduino
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// rf95_server.pde
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// -*- mode: C++ -*-
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// Example sketch showing how to create a simple messageing server
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// with the RH_RF95 class. RH_RF95 class does not provide for addressing or
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// reliability, so you should only use RH_RF95 if you do not need the higher
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// level messaging abilities.
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// It is designed to work with the other example rf95_client
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// Tested with Anarduino MiniWirelessLoRa, Rocket Scream Mini Ultra Pro with
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// the RFM95W, Adafruit Feather M0 with RFM95
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#include <SPI.h>
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#include <RH_RF95.h>
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// Singleton instance of the radio driver
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RH_RF95 rf95(10,2);
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int led = 13; // do not use SPI pins
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void setup()
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{
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// Rocket Scream Mini Ultra Pro with the RFM95W only:
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// Ensure serial flash is not interfering with radio communication on SPI bus
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// pinMode(4, OUTPUT);
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// digitalWrite(4, HIGH);
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pinMode(led, OUTPUT);
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Serial.begin(9600);
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while (!Serial) ; // Wait for serial port to be available
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Serial.println("Server starting");
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if (!rf95.init())
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{
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Serial.println("init failed");
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while(true) ;
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}
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Serial.println("rf95.init() ok");
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// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on
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rf95.setFrequency(868.0);
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//rf95.setTxPower(10, true);
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}
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void loop()
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{
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if (rf95.available())
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{
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Serial.print("rf95.available() ok ");
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// Should be a message for us now
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uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
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uint8_t len = sizeof(buf);
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if (rf95.recv(buf, &len))
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{
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//RH_RF95::printBuffer("request: ", buf, len);
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Serial.print("got request: ");
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Serial.println((char*)buf);
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//Serial.print("RSSI: ");
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//Serial.println(rf95.lastRssi(), DEC);
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// Send a reply
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digitalWrite(led, HIGH);
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Serial.println("Sending a reply");
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uint8_t data[] = "And hello back to you";
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rf95.send(data, sizeof(data));
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rf95.waitPacketSent();
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Serial.println("Reply sent");
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digitalWrite(led, LOW);
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}
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else
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{
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Serial.println("recv failed - empty buffer");
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}
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}
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}
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