Dragino LGT-92 LoRaWAN User Manual Download Page 7

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LGT-92 LoRa GPS Tracker User Manual

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LoRa Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm

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Tracking: max: 38mA

1.3

Features



LoRaWAN 1.0.2 Class A,Class C



STM32L072CZT6 MCU



SX1276/78 Wireless Chip



Pre-load bootloader on USART1/USART2



MDK-ARM Version 5.24a IDE



Preamble detection



Frequency bands CN470/EU433/KR920/US915/IN865



EU868/AS923/AU915



Open source hardware / software



Regular/ Real-time GPS tracking

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Built-in 9 axis accelerometer (MPU9250)

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Motion sensing capability

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Power Monitoring

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Charging circuit via USB port (for model LGT-92-LI)



1000mA Li-on Battery power (for model LGT-92-LI)



2 x AA battery holder for 1.5v AA battery (for model LGT-92-AA)



Tri-color LED, Alarm button

1.4

Applications



Logistics and Supply Chain Management



Human tracking

1.5

Hardware Changelog

LGT-92 v1.5



GPS module change to L76-L



Change USB trace so can recharge when power off

LGT-92 v1.4



Connect GPS 1pps to STM32 PA4



Change GPS antenna type to Active GPS



Add Bead and filter capacitor in the GPS VCC



Change LDO to ME6210A33PG to reduce the idle power consumption.

LGT-92 v1.3:



Add C25,R1, used to support LGT-92-AA version.

Summary of Contents for LGT-92 LoRaWAN

Page 1: ...ED description Buttons correct accelerometer payload info 2019 Mar 29 1 4 0 Add LGT 92 AA board description and photo Add Software hardware change log Change Payload to add Alarm flag 2019 May 11 1 4...

Page 2: ...s a big change compare to previous one Please read chapter 2 for detail 2019 Nov 15 1 5 1 Add work flow for v1 5 LED status 2019 Nov 28 1 5 2 Fix work flow error Add new downlink payload in 1 5 2019 N...

Page 3: ...Payload Analyze 14 2 3 2 Add Payload format in TTN 16 2 4 Downlink Payload 18 2 5 LED Status 18 2 6 Button Function 19 2 7 USB Port Function 19 2 8 Firmware Change Log 19 3 Use AT Command 20 3 1 Acces...

Page 4: ...33 6 6 How to set up LGT 92 to work in 8 channel mode in US915 AU915 CN470 bands 34 6 7 What is the pin mapping for the USB program cable 35 6 8 How to set up LGT 92 to work with Single Channel Gatewa...

Page 5: ...h performance ARM Cortex M0 32 bit RISC core operating at a 32 MHz frequency a memory protection unit MPU high speed embedded memories 192 Kbytes of Flash program memory 6 Kbytes of data EEPROM and 20...

Page 6: ...rammable bit rate up to 300 kbps High sensitivity down to 148 dBm Bullet proof front end IIP3 12 5 dBm Excellent blocking immunity Low RX current of 10 3 mA 200 nA register retention Fully integrated...

Page 7: ...ion sensing capability Power Monitoring Charging circuit via USB port for model LGT 92 LI 1000mA Li on Battery power for model LGT 92 LI 2 x AA battery holder for 1 5v AA battery for model LGT 92 AA T...

Page 8: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 8 40...

Page 9: ...mA li on battery Enable charge circuit FPC internal LoRa Antenna Can power by USB port Real time tracking Short tracking period Rechargeable LGT 92 AA Without Enclosure With 1 5v AA type battery holde...

Page 10: ...AN network user just need to input the OTAA keys in the LoRaWAN IoT server and power on the LGT 92 It will auto join the network via OTAA In case user can t set the OTAA keys in the LoRaWAN OTAA serve...

Page 11: ...al 11 40 The LG308 is already set to connect to TTN network What the rest need to is register this device in TTN Step 1 Create a device in TTN with the OTAA keys from LGT 92 Each LGT 92 is shipped wit...

Page 12: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 12 40 Input these keys to their LoRaWAN Server portal Below is TTN screen shot Add APP EUI in the application Add APP KEY and DEV EUI...

Page 13: ...GPS signal and the green LED will blink Once LGT 92 get the GPS info it will upload a LoRa message include battery GPS info X Y axis info If LGT 92 can t get GPS info into 2 minutes it will still upl...

Page 14: ...use AT SGM 0 to enable the motion sensor to roll pitch info from accelerometer When accelerometer info is enable total payload will be 15 bytes please note 15 bytes won t work on DR0 on US915 AU915 f...

Page 15: ...axis motion sensor the total payload will be 15 bytes while US915 AU915 DR0 accept only 11 bytes payload In this case the payload on server will be ignore and shows as below d While GPS can t get loca...

Page 16: ...and frequency so can customized the movement detect thread hold See AT Command manual LON Enable Disable LED activity for uplink 0x00 Disable LED indicator 0x01 Enable LED indicator Default Value Roll...

Page 17: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 17 40...

Page 18: ...AT MD Movment Detect Any A5 2 or 4 Total bytes 2 or 4 Example 0xA501 AT MD 1 0xA5031904 AT MD 3 25 04 AT KAT Keep Alive Time Any A9 4 Example 0xA9000258 Set AT KAT 0x258 600S The FPort no fix if the p...

Page 19: ...vice RED button See work flow When keep pressing the Alarm button for more than 3 seconds the tracker will immediately send an empty uplink packet lat lon will be all 0x00 in this very first packet to...

Page 20: ...supports AT Command set in stock firmware User can use a USB to TTL adapter to connect to LGT 92 for using AT command as below In PC User needs to set serial tool baud rate to 9600 to access serial co...

Page 21: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 21 40...

Page 22: ...NWKID Network ID You can enter this command change only after successful network connection AT NWKSKEY Network Session Key Joining and sending date on LoRa network AT CFM Confirm Mode AT CFS Confirm...

Page 23: ...SNR of the Last Received Packet AT VER Image Version and Frequency Band AT FDR Factory Data Reset AT PORT Application Port AT CHS Get or Set Frequency Unit Hz for Single Channel Mode AT CHE Get or Se...

Page 24: ...pin ST LINK v2 SWCLK Dupont green pin ST LINK v2 SWDIO Dupont white pin LGT 92 power can be on or off Video Instruction is here https youtu be H 45v5 xI U Text step as below Step1 Install ST LINK driv...

Page 25: ...will now blinking once see it blinks release the reset button on the LGT 92 Step6 The led on the ST LINK adapter will now blinking once see it blinks release the reset button on the LGT 92 The ST Lin...

Page 26: ...install MDK support and get license 1 Open the web http www2 keil com stmicroelectronics stm32 mdk 2 Download the keil 3 Login with an account that has administration rights 4 Right click the Vision...

Page 27: ...a GPS Tracker User Manual 27 40 7 Enter the Product Serial Number 4PPFW QBEHZ M0D5M along with your contact information and click the button Submit An e mail is sent back with the License ID Code LIC...

Page 28: ...w dragino com LGT 92 LoRa GPS Tracker User Manual 28 40 8 To activate the Software Product enter the LIC in the field New License ID Code LIC of the dialog License Management and click Add LIC 9 Finis...

Page 29: ...40 5 2 2 Install STM32L0 Series Device 1 Open the web https www keil com dd2 pack eula container 2 Find the STMicroelectronics STM32L0 Series Device and download it 3 Find the Software Pack and instal...

Page 30: ...his error 5 2 3 Compile Source Code 1 Download the source code from Software Source Code Download Link 2 Use Keil to open the project file STM32CubeExpansion_LRWAN Projects Multi Applications LoRa DRA...

Page 31: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 31 40 4 If you want to change frequency modify the Preprocessor Symbols For example change EU868 to US915 5 Compile and build...

Page 32: ...is placed outdoor and transmission periodically is 5 minutes The device can last about 19 days Please note this is an ideal case on the GPS signal strength Actually battery use time is affected by ma...

Page 33: ...idn t provide further software develop support on this topic In this demo we will show the communication between LoRa Shield and LGT 92 both of them use the basic LoRa library LGT 92 will send a messa...

Page 34: ...7 2 903 9 904 1 904 3 904 5 904 7 904 9 905 1 905 3 Channel 8 15 3 905 5 905 7 905 9 906 1 906 3 906 5 906 7 906 9 Channel 16 23 4 907 1 907 3 907 5 907 7 907 9 908 1 908 3 908 5 Channel 24 31 5 908...

Page 35: ...8 8 919 919 2 919 4 919 6 919 8 Channel 16 23 4 920 920 2 920 4 920 6 920 8 921 921 2 921 4 Channel 24 31 5 921 6 921 8 922 922 2 922 4 922 6 922 8 923 Channel 32 39 6 923 2 923 4 923 6 923 8 924 924...

Page 36: ...re above three keys match User can change either in TTN or Device to make then match In TTN NETSKEY and APPSKEY can be configured by user in setting page but Device Addr is generated by TTN User can a...

Page 37: ...in a short period To overcome this issue you can 1 Try to type the command in a txt file and paste it to the console to shorter the input time for command 2 Try to run AT FDR first to reset the device...

Page 38: ...ifferent version ST Link v2 The white one as below is the most stable and recommended one 2 The white version ST Link v2 such as below photo has different hardware version The original one doesn t hav...

Page 39: ...nd CN470 LoRaWAN CN470 band 9 Packing Info Package Includes LGT 92 LoRa GPS Tracker x 1 USB recharge program cable x 1 Dimension and weight Device Size 85 x 48 x 15 cm Device Weight 50g 10 Support Sup...

Page 40: ...www dragino com LGT 92 LoRa GPS Tracker User Manual 40 40 11 Reference Product Page DataSheet Image Download AT Command Manual TTN Frequency Bands...

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