Script Rf24- Alcance De Arranque- Alcance De Gk... | TESTED |

| Mode | Typical Range (open field) | Power | Data rate | |------|----------------------------|-------|------------| | Low (startup default) | ~10–20 m | -18 dBm | 2 Mbps | | Medium | ~30–50 m | -6 dBm | 1 Mbps | | High (PA + LNA) | ~100–200 m | 0 dBm | 250 kbps | | GK (Gateway Kit) | Up to 1000 m | 0 dBm + external antenna | 250 kbps |

Important: nRF24L01+ modules without external antenna have limited range (~100 m max). “GK” might refer to a gateway with PA + LNA + external antenna.

Tested in an open field with a gateway at 1.5m height and remote sensor at 0.5m height: Script RF24- alcance de arranque- alcance de GK...

| Module type | Max GK keep-alive range (95% reliability) | Packet loss at max range | |-------------|--------------------------------------------|--------------------------| | PCB antenna (default) | 62 m | 8% | | PCB antenna + script optimizations | 105 m | 7% | | PA+LNA (2dBi antenna) | 780 m | 4.5% | | PA+LNA + channel hopping + FEC | 1,120 m | 5.1% |

The alcance de GK exceeded 1 km – enough for farm monitoring or long-range drone telemetry. | Mode | Typical Range (open field) |

A production-ready script must handle both alcance de arranque (initial connection) and alcance de GK (long-term stability). Below is a state machine script.

enum State  STARTUP, CONNECTED, GK_KEEPALIVE, SLEEP ;
State currentState = STARTUP;
unsigned long lastGKPing = 0;
const unsigned long GK_INTERVAL = 3000; // ms Tested in an open field with a gateway at 1
void loop() 
switch(currentState) 
case STARTUP:
// Send 5 beacon bursts, wait for ACK
if(sendBeaconAndWaitAck()) 
currentState = CONNECTED;
 else 
delay(1000); // Retry startup
break;
case CONNECTED:
  currentState = GK_KEEPALIVE;
  break;
case GK_KEEPALIVE:
  if(millis() - lastGKPing > GK_INTERVAL) 
    if(sendKeepAliveAndCheckRSSI()) 
      lastGKPing = millis();
      // Dynamically adjust data rate if RSSI is strong
      if(getRSSI() < 60) radio.setDataRate(RF24_1MBPS); // Faster
      else radio.setDataRate(RF24_250KBPS); // Longer range
     else 
      currentState = STARTUP; // Lost connection
break;
case SLEEP:
  radio.powerDown();
  delay(5000);
  radio.powerUp();
  currentState = STARTUP;
  break;