The WS8425DLS is a wireless transceiver module developed based on Semtech’s latest generation LoRa® LR2021 chip. It supports both sub-GHz and 2.4GHz bands, bridging the gap from low-speed sensing to high-speed data transmission.
The module’s typical receive sensitivity reaches -143 dBm (SF12/62 kHz). In the sub-GHz band, FLRC is supported with data rates up to 2.6 Mbps, while standard LoRa mode achieves up to 125 kbps. This bandwidth improvement enables image transmission, audio/voice fragment streaming, and larger packet updates.
The module supports common sub-GHz (430–510 MHz) and 2.4 GHz ISM bands. It integrates LR-FHSS frequency hopping spread spectrum technology, keeps sleep current ≤3.5 µA, supports RTToF ranging, and is fully compatible with LoRaWAN, BLE 5.0, and Wi-SUN protocols.
Supports sub-GHz and 2.4 GHz dual-band operation
Maximum transmit power: 22dBm for sub-GHz, 12dBm for 2.4 GHz
Supports LoRa®, FLRC, G(MSK), 4-FSK, OOK, BPSK, OQPSK modulation
Fully compatible with SX1261/2/8 devices and LoRaWAN standard defined by LoRa Alliance
High air data rate: FLRC up to 2.6 Mbps, LoRa up to 125 kbps
Wide voltage range: 1.8–3.7 V
4-wire SPI interface for direct MCU connection
Industrial-grade design: -40 °C–85 °C long-term operation
Compact size: 19* 15 * 3 mm
Dual RF interface: U.FL connector or stamp-hole
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