SKU: IOWC-1740
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Elecrow Crowtail LoRa RA-08H Module (803-930MHz)

₹1,179.00 (Inclusive of all taxes)
Out of Stock

The Elecrow Crowtail LoRa RA-08H module is a Crowtail-compatible, long-range wireless transceiver based on the ASR6601 SoC, supporting LoRa, (G)FSK, BPSK, and (G)MSK modulation for LPWAN applications from 803-930MHz.

Features

  • Based on the ASR6601 SoC integrating a 32-bit RISC MCU, RF transceiver, and modem for flexible LPWAN development.
  • Supports ultra-long-range LoRa communication with +22dBm output power and high sensitivity down to -138dBm.
  • Operates across the 803-930MHz frequency band, compatible with regional ISM allocations for global deployments.
  • Features ultra-low power consumption with deep sleep modes drawing as low as 0.9µA for battery-powered IoT nodes.
  • Crowtail form factor with a 3.3-5V operating range for easy plug-and-play integration with Elecrow base shields and Arduino.

Out of stock

Description

The Crowtail LoRa RA-08H module leverages the ASR6601 system-on-chip, a highly integrated LPWAN solution combining a 32-bit RISC microcontroller, memory, and a multi-modulation RF front-end. This integration allows developers to implement custom firmware for sensor data acquisition, processing, and wireless transmission without an external MCU, simplifying node design and reducing BOM cost.

Its RF performance is tailored for challenging environments, offering configurable spreading factors from SF5 to SF12 and supporting both modern LoRa modulation and legacy protocols like (G)FSK. The module’s power architecture is optimized for field deployments, balancing a high +22dBm transmit power for maximum link budget with sophisticated sleep modes that extend battery life in periodic reporting scenarios, making it suitable for remote telemetry and industrial monitoring.

Key Features

  • Integrated ASR6601 SoC with 32-bit RISC MCU, 128KB Flash, and 16KB SRAM for standalone operation.
  • Multi-modulation support includes LoRa, (G)FSK, BPSK, and (G)MSK for protocol flexibility.
  • Ultra-high receiver sensitivity of -138dBm at SF12/125kHz maximizes range in low-SNR conditions.
  • Advanced power management with multiple sleep modes, featuring a deep sleep current of just 0.9µA.
  • Configurable RF output power up to +22dBm to optimize for range versus power consumption.
  • Wide operating frequency band from 803MHz to 930MHz covers major regional ISM allocations.
  • Crowtail standardized connector interface for rapid prototyping with compatible baseboards.
  • Robust 3.3V to 5V supply voltage range for compatibility with various development platforms.

Applications

  • Remote environmental monitoring sensors for agriculture, weather stations, and soil analysis.
  • Industrial telemetry and IIoT for asset condition monitoring, tank levels, and equipment health.
  • Smart city deployments including smart parking, waste management, and utility metering.
  • Supply chain and logistics tracking for pallets, containers, and high-value goods.
  • Home and building automation systems for security, leak detection, and energy management.

Technical Specifications

Core SoC / ModuleASR6601 (RA-08H Module)
Wireless ProtocolLoRa, (G)FSK, BPSK, (G)MSK
Frequency Range803 - 930 MHz
RF Transmit PowerUp to +22 dBm
Receiver Sensitivity-138 dBm (@125kHz, SF12)
Supply Voltage3.3V - 5V DC
Deep Sleep Current0.9 µA
Embedded Memory128 KB Flash, 16 KB SRAM
InterfaceCrowtail Connector (UART, GPIO, Power)
Typical Range1 km (Open Space)
DimensionsApprox. 40mm x 20mm (Board)
Weight7 g

Frequently Asked Questions

What is the primary microcontroller inside the RA-08H module and how do I program it?

The module is based on the ASR6601 SoC, which integrates a 32-bit RISC microcontroller. You program it using the dedicated ASR6601 SDK and toolchain provided by ASR Microelectronics. Development typically involves writing C code, compiling with the SDK, and flashing the firmware via a UART bootloader using a USB-to-serial adapter connected to the module's TX/RX pins through the Crowtail connector.

How do I configure the module's operating frequency and LoRa spreading factor?

Frequency and LoRa parameters (like SF, bandwidth, coding rate) are configured via AT commands or, more commonly, through direct register writes in your custom firmware using the ASR6601 driver libraries. You must set the center frequency within the 803-930MHz band and select a spreading factor from SF5 to SF12, balancing data rate, range, and power consumption for your specific application scenario.

What is the power supply requirement and how do I achieve the lowest sleep current?

The module operates from 3.3V to 5V DC supplied via the Crowtail connector's VCC and GND pins. To achieve the specified 0.9µA deep sleep current, you must correctly configure the ASR6601's power mode registers in firmware to enter the lowest-power sleep state and ensure all unused GPIOs are configured as inputs or outputs set to a low power state. An accurate, low-quiescent-current voltage regulator is also recommended for the supply.

Package Includes

  • 1x Elecrow Crowtail LoRa RA-08H Module
  • 1x Crowtail Connection Cable

Additional Information

Weight 0.007 kg