EH-MW24 Datasheet V0.1 Copyright© 2022 Ehong Information Technology Co. Ltd. All rights reserved.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Table of Contents 1 Product Overview ....................................................................................................... 4 2 Hardware Specification ................................................................................................ 5 2.1 Block Diagram .............................................................................
(31) Documentation Title Documentation No EH-MW24 Datasheet 6.3 Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Hosted Development Kit (Pmod Adapter) .................................................................. 22 6.3.1 6.3.2 6.3.3 6.4 Revision Hardware Configuration .................................................................................................................22 Block Diagram ...........................................................................
(31) Documentation Title EH-MW24 Datasheet 1 Documentation No Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Product Overview Powered by the widely-deployed Qualcomm BLE 5 and 802.15.4 combo QCA4024 wireless MCU, the Ehong EH-MW24 IoT connectivity stamp module is purpose-built for IoT applications that are running on top of ZigBee or Thread over 802.15.4. Additional BLE 5 support can be used for commissioning or any other applications utilizing BLE mesh connectivity.
(31) Documentation Title Documentation No EH-MW24 Datasheet 2 Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Hardware Specification This section provides detailed hardware design and specification of EH-MW24 module. Overall hardware design was optimized for smaller footprint and maximized cost saving. 2.1 Block Diagram EH-MW24 is powered by Qualcomm QCA4024 with an integrated 4MB flash, an 40MHz XTAL as well as discrete RF components.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 2.1.2 External PA Design Block Diagram BT/15.4 ANT (PCB) BT/15.4 ANT (U.FL) 2.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 2.2.2 Pin Definition Pin Pin Name Type Description 23 VDD33 PWR Power input (2.93 ~ 3.63V) connected to 3.3V±10% as default 21 VDDIO PWR Host I/O voltage input (1.8V or 3.
(31) Documentation Title Documentation No EH-MW24 Datasheet 32 GPIO_11 DI/DO 27 GPIO_12 DI/DO 29 GPIO_16 DI/DO 20 GPIO_17 DI/DO 14 GPIO_18 DI/DO 11 GPIO_19 DI/DO 20 GPIO_20 DI/DO 15 GPIO_21 DI/DO 13 GPIO_22 DI/DO 16 GPIO_23 DI/DO 17 GPIO_24 DI/DO 18 GPIO_25 DI/DO 19 GPIO_26 DI/DO 28 GPIO_27 DI/DO 7 GPIO_55 DI/DO 6 GPIO_56 DI/DO 5 GPIO_57 DI/DO 4 GPIO_58 DI/DO 3 GPIO_59 DI/DO 2 GPIO_60 DI/DO Revision Classification Status Date V0.
(31) 2.2.
(31) 2.3 Peripheral Interfaces EH-MW24 supports the following peripheral interfaces through 24x multiplexed GPIO: • • • • • • • • • • 1x SDIO slave 1x SPI master or slave 1x High-Speed UART (3Mbps) 1x UART (115.2kbps) 2x I2C master 1x I2S master or slave 5x 12-bit ADC 7x PWM 1x JTAG 1x USB 2.0 (for manufacturing testing) 2.4 Bootstrap Signals 2.4.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 2.4.4 32.768KHz Sleep Clock Mode GPIO_20 GPIO_21 Description 0 0 Chip Internal LPO 1 0 External Crystal 32.768KHz 0 1 External 32.
(31) Documentation Title Documentation No EH-MW24 Datasheet 3 Electrical Characteristics 3.1 Absolute Maximum Ratings Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 The absolute maximum ratings provided in this section reflect the stress levels that, if exceeded, may cause permanent damage to the device. No functionality is guaranteed outside the operating specifications.
(31) Documentation Title Documentation No EH-MW24 Datasheet 4 Radio Performance 4.1 BLE Radio Characteristics Parameter Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Description Typical Unit BLE Data Rate 1Mbps +7 dBm BLE Data Rate 2Mbps +7 dBm BLE Data Rate 1Mbps -88 dBm BLE Data Rate 2Mbps -88 dBm Typical Unit Tx Power Rx Sensitivity 4.2 802.15.4 Radio Characteristics Parameter Description Tx Power 802.15.
(31) Documentation Title Documentation No EH-MW24 Datasheet 5 Mechanical Specification 5.1 Dimensional View 5.2 Pad Dimension Revision Classification Status Date V0.
(31) Documentation Title Documentation No EH-MW24 Datasheet Parameter Description A Pin Exterior B Pin Interior Diameter C Pin Interior Offset D Pin Spacing E Pin Exterior F Pin Comer Spacing Value Revision Classification Status Date V0.
(31) Documentation Title Documentation No EH-MW24 Datasheet 6 Development Kit 6.1 Overview Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Two kinds of development kits are created to allow EH-MW24 operate in either hostless mode or hosted modes. The hosted mode can further be broken down to either Network Co-Processor (NCP) mode or Radio Co-Processor (RCP) to allow flexibility to adapt to an external host. 6.1.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Host Application Processor ZigBee Thread In Network Communication Processor (NCP) mode, all protocol stack will be offloading to EH-NW24 while an external host is focusing on IoT applications.
(31) Documentation Title Documentation No EH-MW24 Datasheet 6.2 Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Hostless Development Kit 6.2.1 Hardware Configuration 15-pin 2.54 mm (0.1”) Header Cortex Debug 10-pin connector 4-position DIP Switch Micro USB PWR-ON LED Reset Button 15-pin 2.54 mm (0.1”) Header It has the following headers, connectors, DIP switch and LED: 1. 2x 15-pin 2.54mm (0.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 2. Micro-USB connector – This USB port is used to power the development kit as well as to provide UART interface to EH-MW24 via USB to UART bridge. It can be also used to re-flash image and perform manufacturing test. 3. Cortex Debug 10-pin connector – This standard connector is used for JTAG function supported by QCA4024.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.
(31) 6.2.3 Dimension 6.3 Hosted Development Kit (Pmod Adapter) Hosted development kit is created per various industry standards. One of those standards being used is Digilent PmodTM Interface Specification (https://digilent.com/reference/pmod/start). 6.3.1 Hardware Configuration Hosted development kit (Pmod Adapter) is shown below: 3-pin 2.54 mm (0.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 It has the following headers, connectors, DIP switch and LED: 1. 2x6 2.54mm (0.1”) Header Pmod Type 2A (SPI)/3A (UART) – Interface type can be configured by DIP switch SW2. In case of UART, male and female can be configured DIP switch SW3.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 OFF Pmod Type 3A (UART) ON Pmod Type 3A (UART) Male OFF Pmod Type 3A (UART) Female ON RTC 32kHz XTAL enabled OFF RTC 32kHz XTAL disabled SW3 SW4 6.3.
(31) 6.3.3 Dimension 6.
(31) Documentation Title Documentation No EH-MW24 Datasheet 7 7.1 Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Manufacturing Recommendation Power Layout Guideline The module is powered by either 3V battery or DC 3.3V. Power pin connection capacitor is as close as possible to chip and pin. Decoupling the power supply from the chip using a capacitor. Use capacitors to prevent noise from coupling back to the power plane. 7.
(31) Documentation Title EH-MW24 Datasheet Documentation No Revision Classification Status Date V0.
(31) Documentation Title EH-MW24 Datasheet 8 Documentation No Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Packaging Modules are packaged on reels loaded with 1000 modules. Each reel is placed in an antistatic bag with a desiccant pack and a humidity card and placed in an 36x25x12cm box. Anti-static warnings and labels adhere to the outside of the bag. Warning The MeshConnect Modules contain highly sensitive electronic circuitry.
(31) Documentation Title Documentation No EH-MW24 Datasheet 9 Regulatory Compliance Revision Classification Status Date V0.
(31) Documentation Title Documentation No EH-MW24 Datasheet 10 Order Information Part Number Value EH-MW24 PCB only antenna EH-MW24W PCB or U.FL antenna EH-MW24E External PA PCB only antenna EH-MW24EW External PA PCB or U.FL antenna Revision Classification Status Date V0.
(31) Documentation Title Documentation No EH-MW24 Datasheet Revision Classification Status Date V0.1 Public Preliminary Apr 15, 2022 Revision History Revision Description Date 0.1 Initial version May 31, 2022 1.0 Documentation Title EH-MW24 Datasheet Documentation No Revision Classification Status Date V0.
FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two cond itions: (1) this device may not cause harmful interference, and (2) this device must accept any int erference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could v oid the user’s authority to operate the equipment.
ISED Statement ‐English: This device complies with Industry Canada license‐exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, a nd (2) This device must accept any interference, including interference that may cause undesired operation of the device. The digital apparatus complies with Canadian CAN ICES‐3 (B)/NMB‐3(B). ‐ French: Le présentappareilestconforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.
Note Importante: Dans le cas où ces conditions ne peuvent être satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre émetteur), l'autorisation du Canada n'est plus considéré comme valide et l' IC ne peut pas être utilisé sur le produit final. Dans ces circonstances, l'intégrateur OEM sera chargé de réévaluer le produit final (y compris l'émetteur) et l'obtention d'une autorisation distincte au Canada.
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