SPECIFICATIONS

Frequently Asked Questions (FAQ):

1. 1. hat is the difference between RFM95 and RFM95W?

2. Answer: They are identical. The "W" indicates the overseas version, with only minor differences in silk-screen printing. Their functionality is exactly the same.

3. 2. Why is the chip inside the RFM95W labeled as RFM96 instead of RFM95?

4. Answer: The main chip used in the RFM95W is actually the RFM96. For the module model, please refer to the label on the back of the device.

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RFM95 / RFM95W / RFM95-915MHz LoRa Wireless Transceiver

Product Introduction:

The RFM95 transceiver is a LoRa long-range communication module that offers ultra-long-range spread spectrum communication, exceptional interference immunity, and extremely low current consumption. Utilizing HopeRF's patented LoRa modulation technology, the RFM95 achieves a receiving sensitivity of up to -148 dBm while maintaining low crystal and material costs. Its high sensitivity, combined with an integrated +20 dBm power amplifier, results in an industry-leading link budget, making it an ideal choice for long-range and stable performance applications. LoRa provides significant advantages in traditional modulation technologies, modularity, and sensitivity, effectively addressing traditional design challenges such as long distance, anti-interference, and power consumption.

The RFM95 also supports high-performance (G)FSK modulation modes and is compatible with systems such as WMBus and IEEE802.15.4g. It features low phase noise, high sensitivity, excellent receiver chain performance, and high IIP3, while consuming significantly less current than similar devices in the industry.

Basic Parameters:

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  LoRa long-range communication module

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  Maximum link budget up to 168 dB

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  +20 dBm – 100 mW stable RF output power and operating voltage

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  +14 dBm high-efficiency power amplifier (PA)

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  Programmable data rate up to 300 kbps

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  High sensitivity: as low as -148 dBm

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  Robust front-end: IIP3 = -12.5 dBm

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  Strong anti-interference capability

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  Low receiving current: 10.3 mA; register retention current: 200 nA

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  Highly integrated synthesizer with 61 Hz resolution

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  Supports FSK, GFSK, MSK, GMSK, LoRa, and OOK modulation modes

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  Built-in bit synchronizer for clock recovery

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  Preamble detection

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  127 dB dynamic range RSSI

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  Automatic RF detection and CAD (Channel Activity Detection), ultra-fast AFC (Automatic Frequency Control)

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  Packet buffer up to 256 bytes with built-in CRC

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  Built-in temperature sensor and low battery detection indicator

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  Module size: 16 × 16 mm

Main Applications:

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  Remote wireless meter reading

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  Home and building automation

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  Wireless alarm and security systems

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  Industrial monitoring

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  Remote irrigation systems