// Optional: compute packet loss rate over 100 packets // If loss > 50% => that distance is beyond GK range.
void loop() static unsigned long lastSend = 0; if (millis() - lastSend >= 1000) lastSend = millis();
if (success) Serial.print("ACK received. Payload: "); Serial.println(payload); // Here you would update startupRangeOK or GKrange based on distance input // For manual testing: enter distance from serial monitor else Serial.println("Transmission failed – beyond GK range?");
#include <SPI.h> #include <nRF24L01.h> #include <RF24.h> RF24 radio(7, 8); const byte address[6] = "00001"; Script RF24- alcance de arranque- alcance de GK...
void setup() Serial.begin(9600); radio.begin(); radio.setChannel(100); radio.setPALevel(RF24_PA_MAX); // start with max power radio.setDataRate(RF24_250KBPS); // slower rate = longer range radio.openWritingPipe(address); radio.stopListening();
void setup() Serial.begin(9600); radio.begin(); radio.setChannel(100); radio.setPALevel(RF24_PA_MAX); radio.setDataRate(RF24_250KBPS); radio.openReadingPipe(0, address); radio.startListening();
if (incoming == expectedPacket) receivedPackets++; expectedPacket++; Serial.print("Good packet #"); Serial.println(receivedPackets); else Serial.println("Out‑of‑order packet – interference!"); // Optional: compute packet loss rate over 100
// Range thresholds int startupRangeOK = 0; // distance where first ACK received int GKrange = 0; // distance where packet loss > 50%
void loop() if (radio.available()) int incoming; radio.read(&incoming, sizeof(incoming));
Since "GK" in Spanish football/sports means ( Guarda-Redas ), but in electronics could be a custom variable, I’ll provide a structured technical explanation focused on RF24 range testing , startup range calibration , and "GK" interpreted as a range threshold for signal quality . Below is a you can use for a
Below is a you can use for a blog, tutorial, or documentation. RF24 Script: Understanding Startup Range and GK Range 1. Introduction to RF24 and nRF24L01 Modules The RF24 library is the most common Arduino/C++ library for interfacing with nRF24L01 transceiver modules (2.4 GHz). These modules are popular in IoT, RC controls, and sensor networks due to their low cost and decent range (up to ~100m line-of-sight with PA+LNA antennas).
// Send a simple counter static int payload = 0; payload++; bool success = radio.write(&payload, sizeof(payload));
int receivedPackets = 0; int expectedPacket = 1;
// TX side pseudo‑code void measureRange() for (int power = RF24_PA_MIN; power <= RF24_PA_MAX; power++) radio.setPALevel(power); delay(100); int successCount = 0; for (int i = 0; i < 50; i++) if (radio.write(&testPayload, sizeof(testPayload))) successCount++; delay(10); float successRate = successCount / 50.0; Serial.print("Power level "); Serial.print(power); Serial.print(" success rate: "); Serial.println(successRate); if (successRate >= 0.5) Serial.println("GK range achieved at this power level."); break;