Overview
The nrf24 node provides high-speed 2.4GHz radio communication using
NRF24L01+ modules. Supporting data rates up to 2Mbps with 6 simultaneous data pipes, it is ideal for
sensor networks, remote control systems, and custom wireless data links.
Properties
| Property | Type | Required | Default | Description |
|---|---|---|---|---|
| cePin | number | Yes | - | Chip Enable GPIO pin number |
| csnPin | number | Yes | - | Chip Select Not GPIO pin number |
| channel | number | No | 76 | RF channel (0-125), each channel = 1MHz |
| dataRate | string | No | "1mbps" | "250kbps" | "1mbps" | "2mbps" |
| address | string | Yes | - | Pipe address as 5-byte hex string |
| payloadSize | number | No | 32 | Fixed payload size in bytes (1-32) |
| autoAck | boolean | No | true | Enable auto-acknowledgment for reliable delivery |
Inputs
{
"payload": {
"data": [0x48, 0x65, 0x6C, 0x6C, 0x6F],
"pipe": 1,
"address": "0xE7E7E7E7E7"
}
}{
"payload": {
"command": "configure",
"channel": 100,
"dataRate": "250kbps",
"txPower": "MAX"
}
}Outputs
{
"payload": {
"pipe": 1,
"data": [0x48, 0x65, 0x6C, 0x6C, 0x6F],
"length": 5,
"rssi": "strong"
}
}{
"payload": {
"status": "sent",
"ack": true,
"retries": 1,
"pipe": 1
}
}Use Case Examples
Sensor Mesh
Build a network of up to 6 sensor nodes reporting to a central hub using the multi-pipe architecture.
Remote Control
Create custom wireless remote controls for robots, drones, and RC vehicles with low-latency 2Mbps links.
Data Links
Establish point-to-point wireless data links between boards for telemetry, logging, and command channels.
Gaming Peripherals
Build wireless controllers and input devices with ultra-low latency using 2Mbps data rate.
Tips & Best Practices
Use PA+LNA modules (NRF24L01+PA+LNA) for extended range up to 1km. Standard modules reach about 100m.
Keep RF channel above 76 to avoid Wi-Fi interference. Wi-Fi channels 1-11 overlap with NRF24 channels 0-75.
Add a 10uF capacitor across VCC and GND of the module to stabilize power. Many reliability issues come from power instability.
Use 250kbps data rate for maximum range and sensitivity. The lower rate provides about 10dB better reception.