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Connectivity for Local Sensors and Actuators Using nRF24L01+

This slides cover local connectivity using nRF24L01+ and sample integration for connecting local sensors/actuators to Blynk cloud.


nRF24L01+ is a highly integrated, ultra low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band 2.400 - 2.4835GHz.

The Nordic nRF24L01+ integrates a complete 2.4GHz RF transceiver, RF synthesizer, and baseband logic including the hardware protocol accelerator (Enhanced ShockBurst) supporting a high-speed SPI interface for the application controller.

With peak RX/TX currents lower than 14mA, a sub uA power down mode, advanced power management, and a 1.9 to 3.6V supply range, the nRF24L01+ provides a true ULP solution enabling months to years of battery life from coin cell or AA/AAA batteries.

nRF24L01+

  1. ISM Frequency Band at 2.400 - 2.4835 GHz (Spacing at 1 or 2 MHz, GFSK)
  2. 126 RF Channels
  3. Air Data Rate Configurable to 2 Mbps (Options: 250 kbps, 1 Mbps)
  4. 4-Pin Hardware SPI
  5. 5V Tolerant Inputs
  6. 6 Data Pipe MultiCeiver for 1:6 star networks

Notes: Radio is sensitive to Noises! Make sure that the circuit (wire, solder, etc.) is stable. Anything fluxtuates is bad!

References

  1. Nordic Semiconductor
  2. Example Sketches @arduino-info
  3. Connecting the Radio | MySensors
  4. nRF24/RF24: Optimized fork of nRF24L01 for Arduino & Raspberry Pi/Linux Devices
Author

Eueung Mulyana

Engineer. Lecturer. Programmer. Open Source Enthusiast.