radio.available() never becomes true. Fixes:
You can reliably communicate over with a $4 PA+LNA module. For embedded developers working on meshtastic-like networks, remote weather stations, or drone command links, mastering these RF24 scripts is a game-changer.
. This defines the transmission power, which directly impacts the "startup range." RF24_PA_MIN
| Component | Specification | |-----------|----------------| | RF Module | nRF24L01+ with PA/LNA (assumed) | | Frequency | 2.4 GHz | | Data rate | 250 kbps (max range) or 2 Mbps (tested) | | CRC | 16-bit | | Auto-retransmit | Enabled (for GK range) | | MCU | Arduino/STM32 | | Antenna | External 2dBi (startup range), optional for GK |
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
