Description
- 2x Wio-LR2021 Module for 868/915 MHz & 2.4 GHz Bands
- 2x Seeed Studio XIAO nRF54L15 Module
- 2x LoRa Plus Expansion Board
- 2x LF Antenna (868-915 MHz)
- 2x HF Antenna (2.4 GHz)
- 2x USB Cable Type-A Male to Type-C Male (1m)
- 2x U.FL to U.FL RF coaxial cable (100mm)

| RF Chip Specification | |
|---|---|
| Main Chip | LR2021 |
| Chip Size | 5 (W) × 5 (L) × 0.9 (H) mm |
| Chip Package | QFN-48 |
| Power Supply | 1.8 – 3.7 V (3.3 V typical) |
| Sleep Current | 470 nA (without RTC) 1.28 µA (with RTC) |
| Power Mode | SIMO DC-DC / LDO |
| Maximum Operating Current (Transmitter) | Sub-GHz: 105 mA @ +22 dBm 2.4 GHz: 27 mA @ +14 dBm |
| Maximum Operating Current (Receiver) | LoRa SF7 @ 125 kHz: 5.7 mA FLRC: 10.9 mA |
| Output Power | Sub-GHz: +22 dBm to −10 dBm 2.4 GHz: +12 dBm |
| Receiving Sensitivity | LoRa SF12 @ 125 kHz: −141.5 dBm FLRC @ 260 kbps: −111 dBm BLE @ 2 Mbps: −97 dBm |
| Harmonic Noise | 915 MHz @ 100 kHz: −104 dBc/Hz 2.45 GHz @ 100 kHz: −93 dBc/Hz |
| Antenna | RFI_LF (Sub-GHz) RFI_HF (2.4 GHz) Impedance: 50 Ω |
| Interface | SPI |
| Working Temperature | -40°C to +85°C |
| General | |
| Board Size | 65 (W) × 73 (L) × 27 (H) mm |
| Voltage | 3.3 V (USB Type-C) |
| Buttons | K1: User Button K2: Reset Button |
| Display | 0.96" OLED, 128 × 64 pixels |
| Grove Interface | I2C ×2 UART ×1 |
| Debug Interface | SWD |
| MCU | SAMD |
| Antenna | Sub-GHz, 2.4 GHz |
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WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.