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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/GettingStarted
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 sending 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 = 1; // 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 role, false = RX role
-
-// For this example, we'll be using a payload containing
-// a single float number that will be incremented
-// on every successful transmission
-float payload = 0.0;
-
-void setup() {
-
- 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/GettingStarted"));
-
- // 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 a float
- radio.setPayloadSize(sizeof(payload)); // float datatype occupies 4 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
-
- unsigned long start_timer = micros(); // start the timer
- bool report = radio.write(&payload, sizeof(float)); // transmit & save the report
- unsigned long end_timer = micros(); // end the timer
-
- if (report) {
- Serial.print(F("Transmission successful! ")); // payload was delivered
- Serial.print(F("Time to transmit = "));
- Serial.print(end_timer - start_timer); // print the timer result
- Serial.print(F(" us. Sent: "));
- Serial.println(payload); // print payload sent
- payload += 0.01; // increment float payload
- } else {
- Serial.println(F("Transmission failed or timed out")); // payload was not delivered
- }
-
- // to make this example readable in the serial monitor
- delay(1000); // slow transmissions down by 1 second
-
- } else {
- // This device is a RX node
-
- uint8_t pipe;
- if (radio.available(&pipe)) { // is there a payload? get the pipe number that received it
- uint8_t bytes = radio.getPayloadSize(); // get the size of the payload
- radio.read(&payload, bytes); // fetch payload from FIFO
- Serial.print(F("Received "));
- Serial.print(bytes); // print the size of the payload
- Serial.print(F(" bytes on pipe "));
- Serial.print(pipe); // print the pipe number
- Serial.print(F(": "));
- Serial.println(payload); // print the payload's value
- }
- } // 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;
- 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