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Swarm M138 User Manual

Swarm M138
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Swarm M138 Modem
Product Manual
Swarm M138 Modem Product Manual
Revision 1.00
November 2021
© 2021 Swarm Technologies, Inc.
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Swarm M138 Specifications

General IconGeneral
BrandSwarm
ModelM138
CategoryModem
LanguageEnglish

Summary

Safety Information and Compliance

Electrical Interfaces

4.2 Modem Pin Allocation

Shows the pinout diagram and numbering scheme for the mPCIe connector.

4.3 DC Power Interface

Details the DC power inputs and their characteristics for the modem.

Design Guidance

Software Interface

General Command Structure

Explains the NMEA format, command syntax, and checksum calculation.

Table of Commands

Lists all available modem commands and their brief descriptions.

$CS - Configuration Settings

Retrieves and displays device configuration settings, including device ID.

$DT - Date/Time

Sets or queries unsolicited report messages for date and time.

$FV - Firmware Version

Returns the current device firmware version.

$GJ - GPS Jamming/Spoofing Indication

Reports GPS jamming and spoofing status and levels.

$GN - Geospatial Information

Retrieves GPS location, altitude, course, and speed data.

$GP - GPIO1 Control

Allows control and indication of the GPIO1 pin's operation.

$GS - GPS Fix Quality

Reports on GPS fix quality, including HDOP, VDOP, and number of satellites.

$MM - Messages Received Management

Manages received messages, allowing count, mark, and delete operations.

$MT - Messages to Transmit Management

Manages messages to be transmitted, allowing count, list, and delete operations.

$PO - Power Off

Commands the device to power off into a low-power mode.

$TD - Transmit Data

Transmits data to the Swarm network, with options for app ID, hold duration, and expiration.