RF22
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Server node for RF22Mesh network chain
// rf22_mesh_server1.pde // -*- mode: C++ -*- // Example sketch showing how to create a simple addressed, routed reliable messaging server // with the RF22Mesh class. // It is designed to work with the other examples rf22_mesh_* // Hint: you can simulate other network topologies by setting the // RF22_TEST_NETWORK define in RF22Router.h // Mesh has much greater memory requirements, and you may need to limit the // max message length to prevent wierd crashes #define RF22_MAX_MESSAGE_LEN 50 #include <RF22Router.h> #include <RF22Mesh.h> #include <SPI.h> // In this small artifical network of 4 nodes, #define CLIENT_ADDRESS 1 #define SERVER1_ADDRESS 2 #define SERVER2_ADDRESS 3 #define SERVER3_ADDRESS 4 // Singleton instance of the radio RF22Mesh rf22(SERVER1_ADDRESS); void setup() { Serial.begin(9600); if (!rf22.init()) Serial.println("RF22 init failed"); // Defaults after init are 434.0MHz, 0.05MHz AFC pull-in, modulation FSK_Rb2_4Fd36 } uint8_t data[] = "And hello back to you from server1"; // Dont put this on the stack: uint8_t buf[RF22_ROUTER_MAX_MESSAGE_LEN]; void loop() { while (1) { uint8_t len = sizeof(buf); uint8_t from; if (rf22.recvfromAck(buf, &len, &from)) { Serial.print("got request from : 0x"); Serial.print(from, HEX); Serial.print(": "); Serial.println((char*)buf); // Send a reply back to the originator client if (rf22.sendtoWait(data, sizeof(data), from) != RF22_ROUTER_ERROR_NONE) Serial.println("sendtoWait failed"); } } }