Reyax RYLR998 LoRa Transceiver
Plug in a Reyax RYLR998 LoRa transceiver to connect Palpable devices over radio when WiFi can't reach. Wire 4 pins (3.3V, GND, TX, RX) to the Pi's GPIO header and devices start sharing sensor data automatically.
Good to know
- Range depends on environment: up to 20 km line of sight, ~500m through buildings.
- Frequency is auto-selected from the device's WiFi country code to comply with regional ISM regulations.
About it
The RYLR998 uses a Semtech LLCC68 chip with +22 dBm output for up to 20 km range (line of sight). Connect to the Pi Zero 2W's UART pins (GPIO14 TX, GPIO15 RX) with 4 wires. The system handles frequency selection, encryption, and peer discovery — scripts and displays work exactly as if all devices were on the same WiFi network. Supports 868 and 915 MHz ISM bands (auto-selected from your region).
Where to buy
Facts
Tested
Its driver works. We have not signed it off on a real board yet.
Current
17.5 mA
The catalog lists a typical draw of 17.5 mA for the RYLR998, copied from the maker’s description and not measured by Palpable.
Board size
14 × 14.6 mm
The RYLR998 board measures 14 × 14.6 mm and stands 6.2 mm tall with its parts. It has no mounting holes. These dimensions are from the datasheet.
Chip
SX1262
Its radio is the Semtech SX1262.
Free to reuse
Every fact here is open data under CC BY 4.0. Copy it into your own docs or code, and credit Palpable. Download it
This record was last changed on October 6, 2026.