54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
// ask_reliable_datagram_server.pde
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// -*- mode: C++ -*-
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// Example sketch showing how to create a simple addressed, reliable messaging server
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// with the RHReliableDatagram class, using the RH_ASK driver to control a ASK radio.
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// It is designed to work with the other example ask_reliable_datagram_client
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// Tested on Arduino Mega, Duemilanova, Uno, Due, Teensy
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#include <RHReliableDatagram.h>
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#include <RH_ASK.h>
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#include <SPI.h>
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#define CLIENT_ADDRESS 1
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#define SERVER_ADDRESS 2
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// Singleton instance of the radio driver
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RH_ASK driver;
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// RH_ASK driver(2000, 2, 4, 5); // ESP8266: do not use pin 11
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// Class to manage message delivery and receipt, using the driver declared above
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RHReliableDatagram manager(driver, SERVER_ADDRESS);
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void setup()
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{
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Serial.begin(9600);
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if (!manager.init())
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Serial.println("init failed");
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}
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uint8_t data[] = "And hello back to you";
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// Dont put this on the stack:
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uint8_t buf[RH_ASK_MAX_MESSAGE_LEN];
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void loop()
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{
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if (manager.available())
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{
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// Wait for a message addressed to us from the client
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uint8_t len = sizeof(buf);
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uint8_t from;
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if (manager.recvfromAck(buf, &len, &from))
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{
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Serial.print("got request from : 0x");
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Serial.print(from, HEX);
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Serial.print(": ");
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Serial.println((char*)buf);
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// Send a reply back to the originator client
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if (!manager.sendtoWait(data, sizeof(data), from))
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Serial.println("sendtoWait failed");
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}
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}
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}
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