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1. Product Introduction
▫️ Key Features
Ra-01
- The Ra-01 LoRa module utilizes the SX1278 RF chip featuring SEMTECH's LoRa™ modulation.
- This technology enables ultra-long-range spread spectrum communication with high sensitivity (-148dBm), +20dBm transmit power, enhanced interference immunity, and minimized current consumption.
- Compared to traditional modulation, LoRa™ significantly improves blocking resistance and selectivity, resolving the inherent trade-off between range, interference immunity, and power consumption. Typical applications include automated meter reading, building/home automation, security systems, and remote irrigation.
▫️ Technical Highlights
LoRa™ modem
Supports FSK, GFSK, MSK, GMSK, LoRa™, and OOK modulation methods
Supports frequency bands of 410MHz~525MHz
Operating voltage: 3.3V, maximum output: +20dBm, maximum operating current: 105mA
Low power consumption in receiving state: receiving current is 12.15mA, standby current is 1.6mA
High sensitivity: as low as -140dBm
Small-size dual-row stamp hole surface-mount package
The module adopts an SPI interface, uses half-duplex communication, with CRC and a data packet engine of up to 256 bytes
▫️ Selection Table
Type
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Parameter
| Product Image |
| Wireless Protocol |
| Chip |
| Module Flash Size (Mbits) |
| Frequency Band (MHz) |
| Package |
| Dimensions (L×W×H) (mm) |
| Operating Temp Range (℃) |
| Storage Temp Range (℃) |
| Antenna Type |
| Interface |
| Available GPIO |
| Min Voltage (V) |
| Max Voltage (V) |
| Typical Voltage (V) |
| Max Current (mA) |
| Rx Current (mA) |
| Standby Current (μA) |
| Sleep Current (μA) |
| Certifications |
| Max TX Power (dBm) |
| Modulation |
| Max Distance (m) |
| Protocol Support |
2. About Modules
| Module | Datasheets | PCB Footprints | Chip Manual |
|---|---|---|---|
| Ra-01 | View | Download | SX1276 Manual (EN) |
3. Certification Related
| Module | Certificate | Link |
|---|---|---|
| Ra-01 | CE (RED) | View |
| Ra-01 | FCC | View |