Description

Key Features:

✔ 433MHz ISM Band – Long-range (up to 500m in open areas) with external antenna.
✔ SPI Interface – Easy integration with Arduino, Raspberry Pi, STM32.
✔ Configurable Channels – 126 frequency steps (avoid interference).
✔ Low Power Consumption – 1.9–3.6V operation, sleep mode for battery savings.
✔ High Speed – 50kbps max data rate (adjustable).
✔ Built-in CRC & Auto Retransmit – Ensures reliable data delivery.

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Applications:

• Wireless Sensor Networks – Weather stations, soil monitors.

• Remote Control – Drones, RC cars, smart home devices.

• Industrial Telemetry – Machine data transmission.

• DIY IoT Projects – Replace Wi-Fi where coverage is weak.

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Pinout & Wiring (SPI):

• VCC → 3.3V (1.9–3.6V range).

• GND → Ground.

• SCK, MOSI, MISO, CSN → SPI pins of MCU.

• CE, TX_EN, PWR_UP → Control pins.

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Technical Specifications:

• Frequency: 433MHz (315/868/915MHz variants available).

• Range: Up to 500m LOS (line-of-sight, with antenna).

• Modulation: GFSK (Gaussian Frequency Shift Keying).

• Antenna: External 433MHz whip antenna included.

• Dimensions: 20mm × 15mm.

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Package Includes:

• 1x NRF905 RF Module.

• 1x 433MHz Antenna.

• Header pins (unassembled).

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Why Choose the NRF905?

✅ Better Range Than NRF24L01 – Ideal for outdoor use.
✅ Simple SPI Control – Works with Arduino RF libraries.
✅ Low-Cost Wireless – No Wi-Fi/BT overhead.