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authorkrolyxon <me@krolyxon.com>2026-06-08 23:12:15 +0530
committerkrolyxon <me@krolyxon.com>2026-06-08 23:12:15 +0530
commit8a4d103196312b8a18afc0a2ba0fc13ff1a0b180 (patch)
treea92424ac65fbdb93702ea8c44a5c52c9fd66e28c /.pio/libdeps/esp32-s3-n16r8/RF24/examples/StreamingData
parent1d557527be495c59bbc07f194d903b1cec1780d3 (diff)
remove .pio
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-/*
- * See documentation at https://nRF24.github.io/RF24
- * See License information at root directory of this library
- * Author: Brendan Doherty 2bndy5
- */
-
-/**
- * A simple example of streaming data from 1 nRF24L01 transceiver to another.
- *
- * This example was written to be used on 2 devices acting as "nodes".
- * Use the Serial Monitor to change each node's behavior.
- */
-#include <SPI.h>
-#include "printf.h"
-#include "RF24.h"
-
-#define CE_PIN 7
-#define CSN_PIN 8
-// instantiate an object for the nRF24L01 transceiver
-RF24 radio(CE_PIN, CSN_PIN);
-
-// Let these addresses be used for the pair
-uint8_t address[][6] = { "1Node", "2Node" };
-// It is very helpful to think of an address as a path instead of as
-// an identifying device destination
-
-// to use different addresses on a pair of radios, we need a variable to
-// uniquely identify which address this radio will use to transmit
-bool radioNumber; // 0 uses address[0] to transmit, 1 uses address[1] to transmit
-
-// Used to control whether this node is sending or receiving
-bool role = false; // true = TX node, false = RX node
-
-// For this example, we'll be sending 32 payloads each containing
-// 32 bytes of data that looks like ASCII art when printed to the serial
-// monitor. The TX node and RX node needs only a single 32 byte buffer.
-#define SIZE 32 // this is the maximum for this example. (minimum is 1)
-char buffer[SIZE + 1]; // for the RX node
-uint8_t counter = 0; // for counting the number of received payloads
-void makePayload(uint8_t); // prototype to construct a payload dynamically
-
-
-void setup() {
-
- buffer[SIZE] = 0; // add a NULL terminating character (for easy printing)
-
- Serial.begin(115200);
- while (!Serial) {
- // some boards need to wait to ensure access to serial over USB
- }
-
- // initialize the transceiver on the SPI bus
- if (!radio.begin()) {
- Serial.println(F("radio hardware is not responding!!"));
- while (1) {} // hold in infinite loop
- }
-
- // print example's introductory prompt
- Serial.println(F("RF24/examples/StreamingData"));
-
- // To set the radioNumber via the Serial monitor on startup
- Serial.println(F("Which radio is this? Enter '0' or '1'. Defaults to '0'"));
- while (!Serial.available()) {
- // wait for user input
- }
- char input = Serial.parseInt();
- radioNumber = input == 1;
- Serial.print(F("radioNumber = "));
- Serial.println((int)radioNumber);
-
- // role variable is hardcoded to RX behavior, inform the user of this
- Serial.println(F("*** PRESS 'T' to begin transmitting to the other node"));
-
- // Set the PA Level low to try preventing power supply related problems
- // because these examples are likely run with nodes in close proximity to
- // each other.
- radio.setPALevel(RF24_PA_LOW); // RF24_PA_MAX is default.
-
- // save on transmission time by setting the radio to only transmit the
- // number of bytes we need to transmit
- radio.setPayloadSize(SIZE); // default value is the maximum 32 bytes
-
- // set the TX address of the RX node for use on the TX pipe (pipe 0)
- radio.stopListening(address[radioNumber]); // put radio in TX mode
-
- // set the RX address of the TX node into a RX pipe
- radio.openReadingPipe(1, address[!radioNumber]); // using pipe 1
-
- // additional setup specific to the node's RX role
- if (!role) {
- radio.startListening(); // put radio in RX mode
- }
-
- // For debugging info
- // printf_begin(); // needed only once for printing details
- // radio.printDetails(); // (smaller) function that prints raw register values
- // radio.printPrettyDetails(); // (larger) function that prints human readable data
-
-} // setup()
-
-
-void loop() {
-
- if (role) {
- // This device is a TX node
-
- radio.flush_tx();
- uint8_t i = 0;
- uint8_t failures = 0;
- unsigned long start_timer = micros(); // start the timer
- while (i < SIZE) {
- makePayload(i); // make the payload
- if (!radio.writeFast(&buffer, SIZE)) {
- uint8_t flags = radio.getStatusFlags();
- if (flags & RF24_TX_DF) {
- failures++;
- // now we need to reset the tx_df flag and the radio's CE pin
- radio.ce(LOW);
- radio.clearStatusFlags(RF24_TX_DF);
- radio.ce(HIGH);
- }
- // else the TX FIFO is full; just continue loop.
- } else {
- i++;
- }
-
- if (failures >= 100) {
- Serial.print(F("Too many failures detected. Aborting at payload "));
- Serial.println(buffer[0]);
- break;
- }
- }
- unsigned long end_timer = micros(); // end the timer
-
- Serial.print(F("Time to transmit = "));
- Serial.print(end_timer - start_timer); // print the timer result
- Serial.print(F(" us with "));
- Serial.print(failures); // print failures detected
- Serial.println(F(" failures detected"));
-
- // to make this example readable in the serial monitor
- delay(1000); // slow transmissions down by 1 second
-
- } else {
- // This device is a RX node
-
- if (radio.available()) { // is there a payload?
- radio.read(&buffer, SIZE); // fetch payload from FIFO
- Serial.print(F("Received: "));
- Serial.print(buffer); // print the payload's value
- Serial.print(F(" - "));
- Serial.println(counter++); // print the received counter
- }
- } // role
-
- if (Serial.available()) {
- // change the role via the serial monitor
-
- char c = toupper(Serial.read());
- if (c == 'T' && !role) {
- // Become the TX node
-
- role = true;
- counter = 0; //reset the RX node's counter
- Serial.println(F("*** CHANGING TO TRANSMIT ROLE -- PRESS 'R' TO SWITCH BACK"));
- radio.stopListening();
-
- } else if (c == 'R' && role) {
- // Become the RX node
-
- role = false;
- Serial.println(F("*** CHANGING TO RECEIVE ROLE -- PRESS 'T' TO SWITCH BACK"));
- radio.startListening();
- }
- }
-
-} // loop
-
-
-void makePayload(uint8_t i) {
- // Make a single payload based on position in stream.
- // This example employs function to save memory on certain boards.
-
- // let the first character be an identifying alphanumeric prefix
- // this lets us see which payload didn't get received
- buffer[0] = i + (i < 26 ? 65 : 71);
- for (uint8_t j = 0; j < SIZE - 1; ++j) {
- char chr = j >= (SIZE - 1) / 2 + abs((SIZE - 1) / 2 - i);
- chr |= j < (SIZE - 1) / 2 - abs((SIZE - 1) / 2 - i);
- buffer[j + 1] = chr + 48;
- }
-}