Digi XBee3 XB3M1

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Serial communication

Serial interface 134

Serial data 134

UART data flow 134

Serial buffers 135

CTS flow control 135

RTS flow control 135

Enable UART or SPI ports 135

I2C 136

Digi XBee3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide

133

Main Page

Default Chapter4
- Table of Contents4
Digixbee3Cellularlte-M/NB-Iotglobalsmartmodemuserguide15
- Applicable Firmware and Hardware15
- NB-Iot Network15
- SIM Cards15
Get Started with the Xbee Smart Modem Development Kit16
- Identify the Kit Contents17
- Acquire a SIM Card18
  - US Customers18
  - European Customers18
- Connect the Hardware19
- XBIB-U-DEV Reference21
- XBIB-CU-TH Reference23
- XBIB-C-GPS Reference26
- Interface with the XBIB-C-GPS Module27
- Cellular Service29
- Configure and Update Your Xbee30
- Xbee Bootloader39
Xbee Connection Examples41
- Connect to the Echo Server42
- Connect to the ELIZA Server44
- Connect to the Daytime Server46
- Perform a (GET) HTTP Request48
- Get Started with Coap50
- Connect to a TCP/IP Address54
- Get Started with MQTT55
- Debugging63
- Software Libraries63
Get Started with Micropython64
- About Micropython65
  - Why Use Micropython65
- Micropython on the Xbee Smart Modem65
- Use XCTU to Enter the Micropython Environment65
- Use the Micropython Terminal in XCTU66
  - Troubleshooting66
- Example: Hello World66
- Example: Turn on an LED66
- Example: Debug the Secondary UART67
- Exit Micropython Mode68
- Other Terminal Programs68
  - Tera Term for Windows69
- Use Picocom in Linux70
Get Started with BLE72
- Enable BLE on an Xbee Device72
- Enable BLE and Configure the BLE Password Using XCTU72
- Get the Digi Xbee Mobile Phone Application73
- Connect with BLE and Configure Your Xbee Device74
- BLE Reference74
Get Started with Digi Remote Manager77
- Create a Remote Manager Account and Add Devices77
- Configure Remote Manager Features by Scheduling Tasks79
- Manage Data in Remote Manager88
- Remote Manager Reference95
Technical Specifications99
- Interface and Hardware Specifications100
- Cellular RF Characteristics100
- Bluetooth RF Characteristics100
- Cellular Networking Specifications100
- Power Requirements101
- Power Consumption102
- Electrical Specifications103
- Regulatory Approvals104
Hardware105
- Mechanical Drawings106
- Pin Signals106
  - Pin Connection Recommendations107
- Rssi Pwm108
- SIM Card108
- Associate LED Functionality108
Antenna Recommendations110
- Antenna Placement111
Design Recommendations112
- Cellular Component Firmware Updates113
- Power Supply Considerations113
- Minimum Connection Diagram113
- Heat Considerations and Testing114
- Custom Configuration: Create a New Factory Default114
  - Set a Custom Configuration115
  - Clear All Custom Configurations on a Device115
- Clean Shutdown115
Cellular Connection Process117
- Connecting118
  - Cellular Network118
  - Data Network Connection118
- Data Communication with Remote Servers (TCP/UDP)118
- Disconnecting119
Modes120
- Select an Operating Mode121
- Transparent Operating Mode122
- API Operating Mode122
- Command Mode122
- Micropython Mode124
- USB Direct Mode125
  - Configure the Data Pins125
  - Enable USB Direct Mode125
- Bypass Operating Mode (DEPRECATED)125
Sleep Modes127
- About Sleep Modes128
- Normal Mode128
- Pin Sleep Mode128
- Cyclic Sleep Mode128
- Cyclic Sleep with Pin Wake up Mode128
- SPI Mode and Sleep Pin Functionality128
- The Sleep Timer129
- Micropython Sleep Behavior129
Power Saving Features130
- Airplane Mode131
- Power Saving Mode (PSM)131
- PSM Behavior131
- Deep Sleep Mode131
Serial Communication133
- Serial Interface134
- Serial Data134
- UART Data Flow134
- Serial Buffers135
- CTS Flow Control135
- RTS Flow Control135
- Enable UART or SPI Ports135
- I2C136
SPI Operation137
- SPI Communications138
- Full Duplex Operation139
- Low Power Operation140
- Select the SPI Port140
- Force UART Operation141
- Data Format141
File System142
- Overview of the File System143
- XCTU Interface144
- Encrypt Files144
Socket Behavior145
- Supported Sockets146
- Best Practices When Using Sockets146
  - Sockets and Remote Manager146
  - Sockets and API Mode146
- Socket Timeouts146
- Socket Limits in API Mode147
- Enable Incoming TCP Sockets in API Mode147
- API Mode Behavior for Outgoing TCP and SSL Connections147
- API Mode Behavior for Outgoing UDP Data148
- API Mode Behavior for Incoming TCP Connections148
- API Mode Behavior for Incoming UDP Data149
- Transparent Mode Behavior for Outgoing TCP and SSL Connections149
- Transparent Mode Behavior for Outgoing UDP Data150
- Transparent Mode Behavior for Incoming TCP Connections150
- Transparent Mode Behavior for Incoming UDP Connections150
Transport Layer Security (TLS)151
- TLS at Commands152
- Transparent Mode and TLS153
- API Mode and TLS153
- Key Formats153
- Certificate Formats153
- Certificate Limitations153
- Cipher Suites154
- Server Name Indication (SNI)154
- Secure the Connection between an Xbee and Remote Manager with Server Authentication154
Atcommands158
- Special Commands158
- Cellular Commands160
- Network Commands165
- Addressing Commands169
- Serial Interfacing Commands172
- I/O Settings Commands175
- I/O Sampling Commands183
  - TP (Temperature)183
  - IS (Force Sample)183
- Sleep Commands185
- Command Mode Options187
- Micropython Commands189
  - PS (Python Startup)189
  - PY (Micropython Command)189
- Firmware Version/Information Commands191
- Diagnostic Interface Commands193
- Execution Commands196
  - NR (Network Reset)196
  - R (Modem Reset)196
- File System Commands197
- BLE Commands200
- Remote Manager Commands202
- System Commands205
Operate in API Mode206
- API Mode Overview207
- Use the AP Command to Set the Operation Mode207
- API Frame Format207
  - API Operation (AP Parameter = 1)207
  - API Operation with Escaped Characters (AP Parameter = 2)208
API Frames212
- AT Command - 0X08212
- AT Command: Queue Parameter Value - 0X09213
- Transmit (TX) SMS - 0X1F214
- Transmit (TX) Request: Ipv4 - 0X20215
- Tx Request with TLS Profile - 0X23217
- AT Command Response - 0X88219
- Transmit (TX) Status - 0X89220
- Modem Status - 0X8A222
- Receive (RX) Packet: SMS - 0X9F223
- Receive (RX) Packet: Ipv4 - 0Xb0224
- User Data Relay - 0X2D225
  - Example Use Cases225
- User Data Relay Output - 0Xad227
- BLE Unlock API - 0X2C228
  - Example Sequence to Perform at Command Xbee API Frames over BLE230
- BLE Unlock Response - 0Xac232
Packaged Firmware Updates234
- About Packaged Firmware Updates234
- FW Update - 0X2B235
- FW Update Response - 0Xab235
- Important Notes236
- Perform a Cellular Component Firmware Update236
- Error Recovery237
Troubleshooting238
- Cannot Find the Serial Port for the Device239
- Correct a Macos Java Error241
  - Condition241
  - Solution241
- Unresponsive Cellular Component in Bypass Mode242
  - Condition242
  - Solution242
- Syntax Error at Line 1242
- Error Failed to Send SMS242
- Network Connection Issues243
  - Condition243
  - Solution243
- Brownout Issue243
- Hardware Flow Control in Bypass Mode244
- Socket Leaks244
  - Condition244
  - Solution245
Regulatory Information246
- United States (FCC)247
- Innovation, Science and Economic Development Canada (ISED)250
  - Labeling Requirements250

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