FastclockTestClientRF/src/main.cpp

198 lines
6.0 KiB
C++

/*
* Getting Started example sketch for nRF24L01+ radios
* This is a very basic example of how to send data from one node to another
* Updated: Dec 2014 by TMRh20
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
/****************** User Config ***************************/
/*** Set this radio as radio number 0 or 1 ***/
bool radioNumber = 0;
/* Hardware configuration: Set up nRF24L01 radio on SPI bus plus pins 7 & 8 */
RF24 radio(8, 10); // CSN, CE
/**********************************************************/
byte addresses[][6] = {"1ClkM","2ClkM"};
// Used to control whether this node is sending or receiving
bool role = 0;
void setup() {
Serial.begin(19200);
Serial.println(F("*** RECEIVE DUMP ****"));
//Serial.println(F("*** PRESS 'T' to begin transmitting to the other node"));
radio.begin();
// Set the PA Level low to prevent power supply related issues since this is a
// getting_started sketch, and the likelihood of close proximity of the devices. RF24_PA_MAX is default.
radio.setPALevel(RF24_PA_LOW);
radio.setChannel(1);
radio.setDataRate(RF24_2MBPS);
radio.setCRCLength(RF24_CRC_8);
radio.setAutoAck(0);
// Open a writing and reading pipe on each radio, with opposite addresses
if (radioNumber) {
radio.openWritingPipe(addresses[1]);
radio.openReadingPipe(1,addresses[0]);
} else {
radio.openWritingPipe(addresses[0]);
radio.openReadingPipe(1,addresses[1]);
}
radio.powerUp();
Serial.println("Radio details:");
radio.printDetails();
// Start the radio listening for data
}
void sendRegistration(void) {
char sendBuffer[32];
memset(sendBuffer, 0, 32);
sendBuffer[0] = 'r';
strncpy(sendBuffer+1, "testClient", 10);
radio.stopListening();
radio.write(sendBuffer, 11);
radio.startListening();
}
void loop() {
char buffer[32];
memset(buffer, 0, 32);
if (radio.available()) {
radio.read(buffer, 32);
Serial.print(F("Received: type="));
Serial.print(buffer[0]);
if (buffer[0] == 'c') {
Serial.print(F(", day="));
Serial.print((int) buffer[1]);
Serial.print(F(", time="));
Serial.print((int) buffer[2]);
Serial.print(':');
Serial.print((int) buffer[3]);
Serial.print(':');
Serial.print((int) buffer[4]);
Serial.print(F(", speed=1:"));
Serial.println(1000.0 / ((int) buffer[5] << 2));
} else if (buffer[0] == 'R') {
Serial.print(F(", clockName="));
Serial.println(buffer+1);
} else {
Serial.print(F("Unknown message received. Type="));
Serial.print(buffer[0]);
for (int i=0; i<8; ++i) {
Serial.print(' '); Serial.print(buffer[i+1], HEX);
}
Serial.println(F(" ..."));
}
}
static unsigned long lastTick = 0;
if (millis() - lastTick > 5000) {
lastTick = millis();
Serial.print("#");
}
#if 0
/****************** Ping Out Role ***************************/
if (role == 1) {
radio.stopListening(); // First, stop listening so we can talk.
Serial.println(F("Now sending"));
unsigned long start_time = micros(); // Take the time, and send it. This will block until complete
if (!radio.write( &start_time, sizeof(unsigned long) )){
Serial.println(F("failed"));
}
radio.startListening(); // Now, continue listening
unsigned long started_waiting_at = micros(); // Set up a timeout period, get the current microseconds
boolean timeout = false; // Set up a variable to indicate if a response was received or not
while ( ! radio.available() ){ // While nothing is received
if (micros() - started_waiting_at > 200000 ){ // If waited longer than 200ms, indicate timeout and exit while loop
timeout = true;
break;
}
}
if ( timeout ){ // Describe the results
Serial.println(F("Failed, response timed out."));
}else{
unsigned long got_time; // Grab the response, compare, and send to debugging spew
radio.read( &got_time, sizeof(unsigned long) );
unsigned long end_time = micros();
// Spew it
Serial.print(F("Sent "));
Serial.print(start_time);
Serial.print(F(", Got response "));
Serial.print(got_time);
Serial.print(F(", Round-trip delay "));
Serial.print(end_time-start_time);
Serial.println(F(" microseconds"));
}
// Try again 1s later
delay(1000);
}
/****************** Pong Back Role ***************************/
if ( role == 0 )
{
unsigned long got_time;
if( radio.available()){
// Variable for the received timestamp
while (radio.available()) { // While there is data ready
radio.read( &got_time, sizeof(unsigned long) ); // Get the payload
}
radio.stopListening(); // First, stop listening so we can talk
radio.write( &got_time, sizeof(unsigned long) ); // Send the final one back.
radio.startListening(); // Now, resume listening so we catch the next packets.
Serial.print(F("Sent response "));
Serial.println(got_time);
}
}
/****************** Change Roles via Serial Commands ***************************/
if ( Serial.available() )
{
char c = toupper(Serial.read());
if ( c == 'T' && role == 0 ){
Serial.println(F("*** CHANGING TO TRANSMIT ROLE -- PRESS 'R' TO SWITCH BACK"));
role = 1; // Become the primary transmitter (ping out)
}else
if ( c == 'R' && role == 1 ){
Serial.println(F("*** CHANGING TO RECEIVE ROLE -- PRESS 'T' TO SWITCH BACK"));
role = 0; // Become the primary receiver (pong back)
radio.startListening();
}
}
#endif
} // Loop