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Ai-Thinker Ra-07/Ra-07H module is a LoRaWAN module that supports long-distance communication, ultra-low power consumption, high sensitivity, and high cost performance. The chip ASR6501 of the module integrates a LoRa radio transceiver, a LoRa modem and a 32-bit RISC MCU. MCU uses ARM Cortex M0 + core, operating frequency is 48MHz. The operating frequency range of ASR6501 can support continuous coverage from 150MHz to 960MHz; it supports LoRa modulation and (G)FSK modulation.

Ra-08(H) is an LoRa module designed and developed by Shenzhen Ai-Thinker Technology Co., Ltd. The module is used for ultra-long distance spread spectrum communications. Its chip ASR6601 is a universal LPWAN wireless communication SOC, integrated with RF transceivers, modems, and a 32-bit RISC MCU. The MCU adopts an ARM core with a working frequency of 48MHz. The Ra-08 module supports LoRa modulation and traditional (G) FSK modulation under the LPWAN. At the same time, the transmitter also supports BPSK modulation and (G) MSK modulation, receiver support (G) MSK modulation. The Ra-08 module provides long-range and ultra-low power communications for LPWAN applications, which can be widely used in smart meters, supply chain and logistics, home building automation, security system, remote irrigation system and other scenes.


Ai-Thinker Ra-08/Ra-08H key features and specifications:

  • Programmable embedded Arm Cortex-M4 MCU with 128 KB of Flash and 16 KB of SRAM
  • LoRa radio
    • Sensitivity – -138 dBm @ SF12/125KHz
    • Tx power – Up to +22dBm
    • Frequencies
      • Ra-08 – 410 MHz to 525 MHz
      • Ra-08H – 803 MHz to 930 MHz
    • Spread spectrum factor – SF5, SF6, SF7, SF8, SF9, SF10, SF11, SF12
    • LoRa, (G)FSK, BPSK, and (G)MSK modulation
    • Bit rate up to 62.5 Kbps in LoRa modulation mode, up to 300 Kbps in (G)FSK modulation mode
    • Antenna options – IPEX connector, or solder via castellated hole or through-hole
  • Peripherals – GPIOs, I2C, I2S, UART, LPUART, SWD, SPI, QSPI and WDG
  • Security – AES, DES, RSA, ECC, SHA and SM2/3/4
  • Supply Voltage – 3.3V (2.7V to 3.6V)
  • Power Consumption – Down to 0.9uA in deep sleep mode
  • Dimensions – 16 x 16 x 3.2m (SMD-18 package)

with ASR6601

Application field

It can be widely used in various IoT scenarios:

  • Automatic meter reading

  • Home Building Automation

  • Security system

  • Remote irrigation system



1. Ra-08(H) AT command

2. Ra-08(H) Resource summary

3. Ra-08 series development board introductory tutorial, standard LoRaWAN docking private server

4. LoRa & Microcontroller solution | ASR6601 Tutorial LoRaWAN



Ra-08H LoRaWAN 868MHz RF Module with ASR6601 chip, antenna and adaptor

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