ATTOWAVE AMWUA2404 Wi-Fi and Bluetooth Module User Manual

August 27, 2024
AttoWave

ATTOWAVE AMWUA2404 Wi-Fi and Bluetooth Module

Specifications

  • Product Description: Wi-Fi&Bluetooth LE V5.0 Module
  • Major Chipset: ESP32-C3
  • Host Interface: UART
  • Dimension: 25 x 15 x 1 mm (L x W x H)
  • Antenna: Inverted-F Antenna (Built-in)

Product Overview
The AMWUA2404 is a Wi-Fi&Bluetooth Module by Attowave co., Ltd. designed to add Wi-Fi&Bluetooth capabilities to Radar detectors. It utilizes Wi- Fi&Bluetooth Low Energy technology to establish communication between the Radar detector and a smartphone equipped with Wi-Fi&Bluetooth LE.

Features

  • Wi-Fi &Bluetooth: Enables Wi-Fi&Bluetooth connectivity

Specifications Table
General

  • Wi-Fi Feature:
    • Frequency Range: 2412 ~ 2462 MHz
    • Modulation: OFDM for Wi-Fi 802.11b/g/n
    • Channel Number: 20MHz: 11, 40MHz: 7
  • Bluetooth Feature:
    • Bluetooth Version: BLE 5.0
    • Frequency Range: 2402 ~ 2480 MHz
    • Modulation: GFSK for Bluetooth
    • Channel Number: 40
    • Bit Rate of Transmitter: 1Mbps
  • Operating Conditions Feature:
    • Voltage: 3.3V
    • Operating Temperature: -20 ~ 80°C
    • Operating Humidity: TBD
    • Storage Temperature: -40 ~ 85°C
    • Storage Humidity: TBD
    • ESD Protection: Human Body Model Changed Device Model

Pin Definition
Electrical Characteristics
Federal Communications Commission Interference Statement

FAQ
Frequently Asked Questions:

  1. Q: What is the purpose of the AMWUA2404 module?
    A: The AMWUA2404 module is designed to add Wi-Fi&Bluetooth functionality to Radar detectors for communication with compatible smartphones.

Introduction

Product Overview
The AMWUA2404 was an Attowave co., Ltd. Wi-Fi&Bluetooth Module. The AMWUA2404 is used to add Wi-Fi&Bluetooth to Radar detectors. It uses Wi-Fi&Bluetooth Low Energy to communicate between the Radar detector and a Wi-Fi&Bluetooth LE equipped smartphone.

Features

Wi-Fi &Bluetooth

  • ESP32-C3
  • Processor
  • 32-bit RISC-V single-core processor, up to 160MHz
  • AES-128bit encryption Processor
  • Memory
  • 384 KB ROM
  • 400 KB Retention SRAM
  • External Flash
  • 16M-Byte SPI Flash
  • Operating Clock
  • 40MHz
  • Antenna
  • Inverted-F Antenna
  • IO Interfaces
  • UART
  • SWD
  • GPIO
  • Power Input
  • Single 3.3V Power Input
  • Package
  • Module – 25 x 15 x 1 mm (L x W x H)

Specifications Table

General

Feature Description
Product Description Wi-Fi&Bluetooth LE V5.0 Module
Major Chipset ESP32-C3
Host Interface UART
Dimension 25 x 15 x 1 mm (L x W x H)
Antenna Inverted-F Antenna (Built-in)

Wi-Fi

Feature Description
Wi-Fi IEEE 802.11 b/g/n-compliant
Frequency Range 2412 ~ 2462 MHz
Modulation OFDM for Wi-Fi
Channel Number 802.11b/g/n 20MHz : 11

802.11n 40MHz : 7

Bluetooth

Feature Description
Bluetooth version BLE 5.0
Frequency Range 2402 ~ 2480 MHz
Modulation GFSK for Bluetooth
Channel Number 40
Bit Rate of Transmitter 1Mbps

Operating Conditions

Feature Description

Operating Conditions
Voltage| 3.3V
Operating Temperature| -20 ~ 80℃
Operating Humidity| TBD
Storage Temperature| -40 ~ 85℃
Storage Humidity| TBD
ESD Protection
Human Body Model| TBD
---|---
Changed Device Model| TBD

Pin Definition

Pin name Basic Description Type Level

Power Supply
VDD3P3| 3.3V Power Supply| AIO| 3.3V
VDDA| 3.3V Analog Power Supply| AIO| 3.3V
GND| Ground| AIO|
Debug Interface and Reset
U0RXD| UART0 receive data| DI| 3.3V
U0TXD| UART0 transmit data| DO| 3.3V
CHIP_EN| High : Enables the chip.         Low : The chip powers off.| I| 3.3V
SPI Bus Interface
SPI_CLK| Input/Output, SPI clock| DO| 3.3V
SPI_EN| Output, SPO chip enable| DO| 3.3V
SPI_DO| Output, SPI Data output| DO| 3.3V
SPI_DI| Input, SPI Data input| DI| 3.3V
UART Interface
U1RX| UART0 receive data| DI| 3.3V
U1TX| UART0 transmit data| DO| 3.3V
GPIO
P07| GPIO7| I/O| 3.3V
Clock
XTAL_M| Output, Crystal output for the 40 MHz XTAL| AO|
XTAL_P| Input, Crystal input for the 40 MHz XTAL| AI|

Electrical Characteristics

Absolute Maximum Ratings

Symbol Parameter Min Typ Max Unit
VDD3P3 3.3V power supply 3.3 3.6 V

Recommended Operating Conditions

Symbol Parameter Min Typ Max Unit
VDD3P3 3.3V power supply 3.0 3.3 3.6 V

Digital IO Pin DC Characteristics

Symbol Parameter Min Typ Max Unit
VIH Input High Voltage 0.84 V
VIL Input Low Voltage 0.36 V

Federal Communications Commission Interference Statement

Liability for illegal acts
Anyone who uses this product for illegal purposes shall be liable and he or she shall be held responsible for all and any consequences.

FCC licensing information
λ Federal Communications Commission Interference statement
NOTE: Change or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures.

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio, TV technician for help.

This device complies with part 15 of the FCC Rules.

Operation is subject to the following two Conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

NOTE: To comply with FCC RF exposure limits for general population/uncontrolled exposure, the antenna(s) used for this transmitter must not be collocated or operating in conjunction with any other antenna or transmitter.

RF exposure statements
NOTE: The modular transmitter NO its own RF shielding, and tested inside of a host device.
This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body or nearby persons.
CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter.
The devices must be installed and used in strict accordance with the manufacturer’s instructions as described in the user documentation that comes with the product.
We will retain control over the final installation of the modular such that compliance of the end product is assured. In such cases, an operating condition on the limit modular approval for the module must be only approved for use when installed in devices produced by a specific manufacturer. If any hardware modify or RF control software modify will be made by host manufacturer, C2PC or new certificate should be apply to get approval, if those change and modification made by host manufacturer not expressly approved by the party responsible for compliance ,then it is illegal.
If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “CONTAINS FCC ID: AMWUA2404”

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