AI-Thinker LoRa Ra-01S Module (410-525MHz)
AI-Thinker LoRa Ra-01S Module (410-525MHz) - Image 2
SKU: IOWC-0042
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AI-Thinker LoRa Ra-01S Module (410-525MHz)

₹443.00 (Inclusive of all taxes)
Out of Stock

The AI-Thinker Ra-01S is a compact SX1268-based LoRa module operating in the 410-525MHz spectrum, designed for ultra-long-range, low-power wireless communication. It interfaces via SPI and is ideal for developers integrating LoRa into IoT sensor nodes and remote telemetry systems.

Features

  • Ultra-Long Range LoRa Modem: Features the SX1268 chip with patented LoRa modulation for robust, long-distance communication up to +22dBm output power and high sensitivity down to -148dBm.
  • Wide Frequency Band Support: Operates across the 410MHz to 525MHz spectrum, compatible with regional ISM bands for global IoT deployments.
  • Ultra-Low Power Consumption: Engineered for battery-operated nodes with a minimum receive current of 4.5mA and a standby current of just 1.6mA.
  • Flexible Antenna Integration: Supports half-hole pads, through-hole pads, or an IPEX socket for versatile antenna connection strategies.
  • SPI Interface for Easy Integration: Utilizes a standard SPI interface with a packet engine for simplified communication with host microcontrollers like ESP32 or STM32.

Out of stock

Description

The AI-Thinker Ra-01S module encapsulates the Semtech SX1268 LoRa transceiver in a miniature SMD16 footprint, providing a complete RF solution for sub-GHz IoT networks. Its architecture is optimized for spread-spectrum communication, offering exceptional link budget and interference immunity compared to traditional FSK/GFSK modulation, which is critical for reliable data transmission in congested RF environments.

Power management is a core design tenet, with the module supporting a wide supply voltage from 2.7V to 3.6V and featuring multiple low-power states. This makes it suitable for solar-powered or battery-backed applications in smart agriculture, remote metering, and environmental monitoring where years of operation are required. The integrated packet engine with CRC offloads processing from the host MCU, streamlining firmware development.

Key Features

  • Based on the high-performance Semtech SX1268 LoRa transceiver chip.
  • Supports multiple modulation schemes: LoRa, FSK, GFSK, MSK, GMSK, and OOK for flexibility.
  • High RF output power up to +22dBm and exceptional receiver sensitivity as low as -148dBm for maximum range.
  • Extremely low current consumption: 4.5mA in receive mode and 1.6mA in standby mode.
  • Compact dual-row stamp hole (SMD) package measuring only 17mm x 16mm.
  • SPI communication interface with a 256-byte data packet engine supporting CRC.
  • Robust operating temperature range from -40°C to +85°C for industrial and outdoor use.

Applications

  • Automatic Meter Reading (AMR) for water, gas, and electricity utilities.
  • Smart Agriculture and Remote Irrigation System monitoring and control.
  • Home and Building Automation for wireless sensor networks.
  • Industrial Telemetry and IIoT for remote equipment monitoring.
  • Security Systems and Environmental Sensing in remote locations.

Technical Specifications

Wireless Chip/SoCSemtech SX1268
Wireless ProtocolLoRa, FSK, GFSK, MSK, GMSK, OOK
Frequency Range410 MHz - 525 MHz
RF Transmit PowerUp to +22 dBm
Receiver SensitivityAs low as -148 dBm (LoRa)
Supply Voltage2.7 V - 3.6 V
Operating Current (RX)4.5 mA (min)
Standby Current1.6 mA
InterfaceSPI
Antenna ConnectorHalf-hole/Through-hole pads, IPEX socket option
Operating Temperature-40°C to +85°C
Dimensions17 mm x 16 mm x 3.2 mm

Frequently Asked Questions

What microcontroller can I use to control the Ra-01S module, and how do I connect it?

You can use any microcontroller with an SPI interface, such as an ESP32, STM32, or Arduino. Connect the module's SCK, MISO, MOSI, and NSS (chip select) pins to the corresponding SPI pins on your MCU. Ensure a stable 3.3V power supply and a common ground. The NRESET and BUSY pins may also need to be connected for full functionality, depending on your driver library.

How do I select and solder an antenna for the Ra-01S module?

The module supports three methods: solder a wire antenna (e.g., 1/4 wavelength) to the half-hole pads, solder an antenna with a through-hole pin, or connect an external antenna via an IPEX-to-SMA pigtail if your variant has the IPEX socket. Ensure your antenna is tuned for your operating frequency (e.g., 433MHz or 868MHz within the 410-525MHz band) and maintain a 50-ohm impedance for optimal RF performance.

What is the typical current consumption during transmission (TX) and how can I minimize power usage?

Current during transmission depends on the set output power; at maximum +22dBm, it can reach approximately 140mA. To minimize power, use the lower TX power settings available via the SX1268 registers and implement deep sleep modes between transmissions. The module's standby current is only 1.6uA, so putting it to sleep between send/receive cycles is crucial for battery longevity in IoT sensor nodes.

Package Includes

  • 1 x AI-Thinker LoRa Ra-01S Module

Additional Information

Weight 0.003 kg
Dimensions 1.7 × 1.6 × 0.32 cm

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