Swarm Asset Tracker PRODUCT MANUAL Revision 1.11 · October 2022 © 2022 Swarm Technologies, Inc.
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Revision History Revision Date Comment 1.00 09/16/22 Swarm Asset Tracker Product Manual - Initial Release 1.10 10/13/22 Formatting Updates Updated Sections 1 and 4 Added Sections 7 and 8 Added FCC Statement of Compliance 1.11 10/27/22 Added FTDI Pinout to Section 4.3 Added USB Charging Note to Section 4.4 © 2022 SWARM TECHNOLOGIES Firmware Version 3.0.0 SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
Additional Resources: Please visit our developer tools webpage for quickstart guides and other helpful resources: https://swarm.space/documentation-swarm © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
Revision History 4 Additional Resources: 5 1 Product Overview 7 2 Device Registration 8 3 Mechanical Specification 3.1 Dimensions 3.2 Environmental 3.3 Torque Specifications 9 9 9 10 4 Electrical Interfaces 4.1 DC Power Interface and Charging 4.2 Power On/Off Control 4.3 Serial Data Interface 4.4 USB Power and Data Interface 11 11 13 14 16 5 Mounting Guidance 5.1 Mounting Feet 5.2 Magnet Mounts 5.3 VHB Tape 5.4 Pole Mounting Kit 17 17 17 17 18 6 RF Interfaces 6.1 RF Antenna 6.1.
1 Product Overview The Swarm Asset Tracker is an end-to-end solution for tracking equipment, vehicles, and other remote assets. The Swarm Asset Tracker functions anywhere in the world using Swarm's global satellite network, and is ideally suited for remote locations that lack terrestrial network coverage. The Swarm Asset Tracker is an out-of-the-box commercial product that can be set up within minutes to transmit its GPS information and internal battery voltage.
2 Device Registration Create your Swarm Hive account at https://bumblebee.hive.swarm.space/hive/ui/sign-up and sign into your account. Navigate to the Register Device page: Figure 1: Swarm Hive Register Device Page. Click Start Scanning to scan your Swarm Asset Tracker’s QR Code that is located on the sticker affixed to the enclosure. If you are unable to use the browser-based scanner, you can also use your camera app to scan the Asset Tracker QR code, and enter the auth code in the Hive manually.
3 Mechanical Specification 3.1 Dimensions The overall dimensions of the Asset Tracker and its weight are summarized below. Parameter Value Length 120.0 mm Width 120.0 mm Height with Antenna 250 mm Weight 227 g Table 2: Modem Mechanical Dimensions and Weight. For detailed dimensional drawings of the Asset Tracker’s enclosure, please refer to the drawings available here for Hammond P/N 1557D. 3.2 Environmental The environmental specifications of the Asset Tracker are summarized below.
3.3 Torque Specifications The torque specifications for the Asset Tracker are summarized below. Parameter Recommended Value Enclosure screws kit 78 ozf-in Antenna SMA connector 10 in-lbs M8 power connector 8.8 in-lbs Table 4: Torque Specifications. © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
4 Electrical Interfaces The following subsections contain information for the electrical interfaces of the Modem. 4.1 DC Power Interface and Charging External DC voltage can be supplied from the asset via an onboard male M8 circular connector pictured below. The asset should be capable of supplying the required current in order to recharge the onboard batteries. The Asset Tracker can also be charged via micro-usb, see Section 4.5 for more details. The unit will ONLY charge between -10C and +50C.
Input Voltage [VDC] Typical Current Draw [mA] 6 1000 9 620 12 460 18 300 24 230 28 200 Table 5: External Power Current Draw. Figure 4: DC Input Voltage vs. Current Draw. © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
4.2 Power On/Off Control In order to power the Asset Tracker ON, press the ON/OFF button once. You’ll see dim lights around the edge of the PCB light up. In order to power the Asset Tracker OFF, press the ON/OFF button again. Figure 5: Power On/Off Button. © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
4.3 Serial Data Interface The serial data interface is a CMOS serial UART 3-wire (serial Rx, serial Tx, and ground) interface at 3.3V digital signal levels over which the Modem transfers commands, responses, and message data. The FTDI header for the serial data interface is accessible inside the enclosure after removing the 4 screws at the bottom. The serial communication parameters can be found below. Figure 6: Serial Data Interface. Pin Number Function 1 GND 2 N.C 3 N.
Parameter Value Baud Rate 115200 Data Bits 8 Bits Parity None Stop bits 1 Bit Flow Control None Table 7: Serial Data Interface Specifications. In addition, the electrical characteristics for SERIAL_RX, SERIAL_TX can be found below. Symbol Parameter Min Typ. Max Unit VIL I/O input low level voltage -0.3 - 0.3*3.3V V VIH I/O input high level voltage 0.7*3.3V - 3.3V V Table 8: Electrical characteristics for SERIAL_RX, SERIAL_TX.
4.4 USB Power and Data Interface A USB interface is provided via a micro-usb connector accessible inside the enclosure after removing the 4 screws at the bottom. The connector can be used to charge the Asset Tracker and for configuration of the Asset Tracker. The unit will ONLY charge between -10C and +50C. All other functions will work uninterrupted across the operating temperature range. The current consumption during USB charging is 500mA. Figure 7: USB Power and Data Interface.
5 Mounting Guidance This section describes the recommended mounting practices for successful deployment of the Swarm Asset Tracker. 5.1 Mounting Feet Please refer to this document on Hammond’s website for instructions on how to install the enclosure mounting feet. 5.2 Magnet Mounts Magnet mounting can also be utilized. A total of 4 magnets per Asset Tracker are recommended for reliable mounting of the device. An example magnet part number is provided below along with the recommended screw part number.
5.4 Pole Mounting Kit Pole mounting kits can be purchased from Hammond Manufacturing at this link. The mounting kit can be used to secure the Asset Tracker to a variety of surfaces quickly and securely. Please refer to this document on the Hammond website for mounting instructions. Recommended Pole Mounting Kit Hammond: PMB Series © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
6 RF Interfaces This section describes the physical characteristics of the RF connectors and specifications of the RF Interface. 6.1 RF Antenna For illustrative purposes, a picture of the Swarm ¼-wave antenna is shown in Figure 9. Figure 8: Swarm Coiled ¼ Wave Antenna. © 2022 SWARM TECHNOLOGIES SWARM ASSET TRACKER PRODUCT MANUAL · REV 1.
6.1.1 Antenna Characteristics The Modem is certified with the following antenna as described below. No power reduction compensation is required for use with this antenna. Swarm Coiled ¼ Wave Antenna Parameter Value Length 22.0 cm Diameter (Connector) 11.2 mm Diameter (along major length) 7.6 mm Weight 31.5 g Operating Temperature -55 °C to +130 °C Operating Humidity 0-100% humidity, condensable Impedance 50 Ohms nominal Polarization Linearly Polarized VSWR (between Swarm Bands) Max Δ < 0.
7 Message Transmission 7.1 Motion Detection Disabled The default configuration of the Swarm Asset Tracker is 1 GPS acquisition every 2 hours with 1 transmission per 2 hour window. Motion detection is also enabled by default. A visual representation of the default configuration is shown in Figure 9 below. Figure 9: Visual Representation of the Swarm Asset Tracker’s Default Configuration In the first GPS state, the Asset Tracker will attempt to acquire a GPS fix for up to 4 minutes.
7.2 Motion Detection Enabled When motion detection is enabled, it acts as a modifier for the profile described in Section 7.1. If motion is detected while the Asset Tracker is awake and not in its sleep mode, there will be no change to the configured profile. There are two possible scenarios that could occur if motion is detected while the Asset Tracker is in its sleep mode.
8 Transmitted Data 8.
8.2 Accessing Transmitted Data using the Swarm Hive 8.2.1 Map Page The Map Page on the Swarm Hive will show the last known location of the device along with historical data. After logging in, the user can navigate to this page and filter devices using the Device ID of the Asset Tracker. 8.2.2 Reports Page The Swarm Hive can be used to generate reports for Asset Tracker data. Reports can be configured using the Reports Page after logging into the Swarm Hive.
8.2.3 REST API Customers can extract data from the Swarm Hive by using the provided REST API. Documentation for the REST API can be found on the Swarm Hive’s API Docs page linked here. The API Docs page provides a list of REST endpoints that are available from Swarm for customers to use. Each endpoint can be tested using the interactive API Docs page to test the functionality and also view the expected response. 8.2.
9 FCC Statement of Compliance Swarm Technologies, Inc. 435 N. Whisman Rd. Ste 100 Mountain View, CA 94043 Model: ATM138 Contains FCC ID: 2AVE9-M138 Contains IC: 25817-M138 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.
