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Description
- 1x Elecrow nRFLR1121 Wireless Transceiver Module - Integrates Nordic nRF52840 & Semtech LR1121
- 20 x 3.5 mm
- High performance with maximum transmit power of +20dBm
- Supports transmission rates from 1.91 to 62.5 kbps
- Sensitivity of -141dBm at SF12/BW=125kHz
- Link budget of 166dB
- Ultra-low power consumption with a sleep current of 6uA
- Supports sub-GHz, global 2.4GHz spectrum, S-band, and LoRa point-to-point communication
- Wireless connection supports 850~930MHz global LoRa & LoRaWAN ISM frequency
- Supports low-power Bluetooth mesh network, NFC, Thread, and Zigbee
- Built-in AT command firmware with SDK support for customized development
- AT command set accessible via UART interface
- Long-distance communication up to 10km
- Rich peripherals with various GPIO interfaces such as UART, I2C, ADC
- FCC, CE, RoHS certified
- Processor: RF chip nRF52840, dual-core 32-bit, 64MHz main frequency
- RF chip: Semtech LR 1121
- LoRa specification: Transmit power TX +22 dBm max, receiving sensitivity -141dBm
- Demodulator supports LoRa/(G)FSK/GMSK/Sigfox signal modulation
- Supports S-band satellite frequency hopping spread spectrum communication
- LoRa frequency range: 150MHz to 960MHz and 2400 MHz bands
- Spreading factor: SF5~SF12
- Data transfer rate: 1.91 to 62.5 Kbps
- Communication interface: SPI (0~10Mbps)
- Lead pin includes SPI signal, VCC, multiple GND, NRST, ANT, TX control, RX control, BUSY status, NFC, SWD debugging pin
- Antenna via RF pins, not onboard
- Reference power consumption: 6uA (sleep), 126mA (transmit + MCU), 18mA (receive + MCU)
- Communication distance: 5~6km, maximum over 10km
- Crystal type: Industrial grade 32MHz TCXO
- LoRaWAN protocol: Class A/B/C, compliant with LoRaWAN 1.0.4 specification
- Operating voltage: 1.8~3.7V
- Operating temperature: -40°C to +85°C, industrial standard design
- Weight: 3g