@Bruzzer, Я всё сделал и эта ошибка исчезла, но появилась другая. Эта ошибка также связана с printf, но теперь уже с командой. Сам код:
/*
March 2014 - TMRh20 - Updated along with High Speed RF24 Library fork
Parts derived from examples by J. Coliz <
[email protected]>
*/
/**
Example for efficient call-response using ack-payloads
This example continues to make use of all the normal functionality of the radios including
the auto-ack and auto-retry features, but allows ack-payloads to be written optionlly as well.
This allows very fast call-response communication, with the responding radio never having to
switch out of Primary Receiver mode to send back a payload, but having the option to switch to
primary transmitter if wanting to initiate communication instead of respond to a commmunication.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
// Hardware configuration: Set up nRF24L01 radio on SPI bus plus pins 9 & 10
RF24 radio(9, 10);
// Topology
byte addresses[][6] = {"1Node", "2Node"}; // Radio pipe addresses for the 2 nodes to communicate.
// Role management: Set up role. This sketch uses the same software for all the nodes
// in this system. Doing so greatly simplifies testing.
typedef enum { role_ping_out = 1, role_pong_back } role_e; // The various roles supported by this sketch
const char* role_friendly_name[] = { "invalid", "Ping out", "Pong back"}; // The debug-friendly names of those roles
role_e role = role_pong_back; // The role of the current running sketch
byte counter = 1; // A single byte to keep track of the data being sent back and forth
void setup() {
Serial.begin(9600);
printf_begin(); <------------------------------------------------------------------Здесь ошибка
printf("\n\rRF24/examples/GettingStarted/\n\r");
printf("ROLE: %s\n\r", role_friendly_name[role]);
printf("*** PRESS 'T' to begin transmitting to the other node\n\r");
// Setup and configure radio
radio.begin();
radio.setAutoAck(1); // Ensure autoACK is enabled
radio.enableAckPayload(); // Allow optional ack payloads
radio.setRetries(0, 15); // Smallest time between retries, max no. of retries
radio.setPayloadSize(1); // Here we are sending 1-byte payloads to test the call-response speed
radio.openWritingPipe(addresses[1]); // Both radios listen on the same pipes by default, and switch when writing
radio.openReadingPipe(1, addresses[0]); // Open a reading pipe on address 0, pipe 1
radio.startListening(); // Start listening
radio.powerUp();
radio.printDetails(); // Dump the configuration of the rf unit for debugging
}
void loop(void) {
/****************** Ping Out Role ***************************/
if (role == role_ping_out) { // Radio is in ping mode
byte gotByte; // Initialize a variable for the incoming response
radio.stopListening(); // First, stop listening so we can talk.
printf("Now sending %d as payload. ", counter); // Use a simple byte counter as payload
unsigned long time = micros(); // Record the current microsecond count
if ( radio.write(&counter, 1) ) { // Send the counter variable to the other radio
if (!radio.available()) { // If nothing in the buffer, we got an ack but it is blank
printf("Got blank response. round-trip delay: %lu microseconds\n\r", micros() - time);
} else {
while (radio.available() ) { // If an ack with payload was received
radio.read( &gotByte, 1 ); // Read it, and display the response time
printf("Got response %d, round-trip delay: %lu microseconds\n\r", gotByte, micros() - time);
counter++; // Increment the counter variable
}
}
} else {
printf("Sending failed.\n\r"); // If no ack response, sending failed
}
delay(1000); // Try again later
}
/****************** Pong Back Role ***************************/
if ( role == role_pong_back ) {
byte pipeNo, gotByte; // Declare variables for the pipe and the byte received
while ( radio.available(&pipeNo)) { // Read all available payloads
radio.read( &gotByte, 1 );
// Since this is a call-response. Respond directly with an ack payload.
// Ack payloads are much more efficient than switching to transmit mode to respond to a call
radio.writeAckPayload(pipeNo, &gotByte, 1 ); // This can be commented out to send empty payloads.
printf("Sent response %d \n\r", gotByte);
}
}
/****************** Change Roles via Serial Commands ***************************/
if ( Serial.available() )
{
char c = toupper(Serial.read());
if ( c == 'T' && role == role_pong_back )
{
printf("*** CHANGING TO TRANSMIT ROLE -- PRESS 'R' TO SWITCH BACK\n\r");
role = role_ping_out; // Change roles (ping out)
radio.openWritingPipe(addresses[0]); // Open different pipes when writing. Write on pipe 0, address 0
radio.openReadingPipe(1, addresses[1]); // Read on pipe 1, as address 1
}
else if ( c == 'R' && role == role_ping_out )
{
printf("*** CHANGING TO RECEIVE ROLE -- PRESS 'T' TO SWITCH BACK\n\r");
role = role_pong_back; // Become the primary receiver (pong back)
radio.openWritingPipe(addresses[1]); // Since only two radios involved, both listen on the same addresses and pipe numbers in RX mode
radio.openReadingPipe(1, addresses[0]); // then switch pipes & addresses to transmit.
radio.startListening(); // Need to start listening after opening new reading pipes
}
}
}
Ошибка:
Arduino: 1.8.13 (Windows 10), Плата:"Arduino Nano, ATmega328P"
GettingStarted_CallResponse:18:10: fatal error: printf.h: No such file or directory
compilation terminated.
exit status 1
printf.h: No such file or directory
Этот отчёт будет иметь больше информации с
включенной опцией Файл -> Настройки ->
"Показать подробный вывод во время компиляции"
