Shandong USR IOT Technology Limited USRGM3 사용자 매뉴얼

차례

• USR-GM3/GM3s User Guide

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• Quick Start

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• 1.1. Testing environment

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• 1.2. Transmission

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• 2. Introduction

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• 2.1. Short Description

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• 2.2. Characteristic

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• 2.3. Features

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• 2.4. Application Field

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• 3. Hardware

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• 3.1. Pin Description

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• 3.1.1. Outside View

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• 3.1.2. Pin Assignment（Top）

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• 3.1.3. PCB Layout

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• 3.1.4. Pin Description

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• 3.1.5. Outside Antenna

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• 3.2. Hardware Block Diagram

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• 4. Module Functions

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• 4.1. Work Mode

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• 4.1.1. Switching Work Mode

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• 4.1.2. Network transmission

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• 4.1.3. HTTPD Function

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• 4.1.4. SMS Message Transmission

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• 4.2. Register Package

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• 4.2.1. Description

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• 4.2.2. Usage

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• 4.3. Heart Beat Package

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• 4.3.1. Description

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• 4.3.2. Usage

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• 4.4. UART

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• 4.4.1. RS485

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• 4.4.2. Similar RFC2217

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• 5. Parameters Setting

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• 5.1. Operating AT command

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• 5.2. AT Command Format

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• 5.3. AT Command Set

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• Appendix A: Contact

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• Appendix B: Disclaimer

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• Appendix C: Update History

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