Ebyte E108-GN02D User manual

E108-GN02D User Manual
GK9501 Positioning module

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
1
CONTENTS
CHAPTER 1 OVERVIEW..................................................................................................................2
1.1 INTRODUCTION...........................................................................................................................2
1.2 FEATURES................................................................................................................................ 2
1.3 APPLICATION SCENARIO.............................................................................................................3
CHAPTER 2 QUICK START..........................................................................................................3
CHAPTER 3 SPECIFICATIONS....................................................................................................... 5
3.1 GPS PERFORMANCE PARAMETERS.............................................................................................5
3.2 BASIC PARAMETERS................................................................................................................... 6
CHAPTER 4 SIZE AND PIN DEFINITION.................................................................................. 7
CHAPTER 5 HARDWARE DESIGN................................................................................................ 8
CHAPTER 6 WORKING MODE.................................................................................................... 8
CHAPTER 7 RELATED MODELS................................................................................................... 8
CHAPTER 8 BULK PACKAGING................................................................................................... 9
REVISION HISTORY.......................................................................................................................10
ABOUT US....................................................................................................................................... 10

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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Chapter 1 Overview
1.1 Introduction
E108-GN02D is a high-performance, high-integration, low-power, low-cost multi-mode satellite
positioning and navigation module. It is small in size and low in power consumption. It can be used for
GNSS positioning such as car navigation, smart wear, and drone flight control. Application. Provides
hardware interface, supports UART communication and low power consumption mode. Support
BDS/GPS/GLONASS/GALILEO/QZSS/SBAS and other satellite positioning.
The module adopts the integrated design of radio frequency baseband antenna,
integrates DC/DC, LDO, radio frequency front end, low-power application
processor, RAM, Flash storage, RTC and power management, etc. It is powered
by button battery RTC and backup RAM. Reduce first positioning time. The
module supports serial port to connect with other peripherals, and the operation
is simple, and it will automatically start running after power on. Allow users to
get started very quickly.
1.2 Features
Support BDS/GPS/GLONASS/GALILEO/QZSS/SBAS multi-system joint positioning and
single-system independent positioning;
D-GNSS differential positioning, A-GNSS assisted positioning, ephemeris prediction, DR
integrated navigation application, the fastest data update rate is 10Hz;
32-bit application processor, the highest frequency is 133MHz, supports dynamic frequency
adjustment;
Support PPS output, the default period is 1s;
Built-in reset controller;
Support UART communication;
RTC: Support 32.768 KHz ± 20 ppm crystal oscillator, 1.1V RTC clock output, support
external signal wake-up;
Output format: Support NMEA0183 V4.1 and previous versions, the maximum fixed update
frequency can reach 10Hz;
High sensitivity: capture cold start -149dBm, hot start -162dBm, tracking -166dBm;
Ultra-low power consumption: 35mA capture, low power consumption mode can be entered
through the interface.

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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1.3 Application scenario
Vehicle positioning and navigation equipment;
Wearable devices, such as GPS trackers, etc.;
UAV positioning, industrial computers, etc.;
Industry equipment that requires GNSS positioning or navigation；
Chapter 2 Quick start
This chapter is tested based on E108-GN02D:
1. Connect to a computer through a serial converter.
2. You can open the serial port assistant to view the data reported by the serial port, or use our
naviTrack to view.

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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When the baud rate is set to 9600 bps, data will be reported all the time after opening the
serial port. The common output format is as follows:
GGA: time, location, number of satellites;
GSA: GPS receiver operating mode, satellites used for positioning, DOP value, positioning
status;
GSV: visible GPS satellite information, elevation angle, azimuth angle, signal to noise ratio;
RMC: time, date, location, speed;
VTG: ground speed information;
For detailed meaning, please refer to the third section NMEA0183 protocol;
For ease of use, we recommend using the exclusive tool TaviTrack for debugging. For
detailed usage, please refer to the "naviTrack User Manual".

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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1. Run naviTrack. with administrator privileges, run the above page;
2. Select the corresponding com port and click connect. After the connection is successful,
you can see the reported data in the NMEA window.
3. For detailed meaning, please refer to the description in the third section NMEA0183
protocol;
4. After the positioning is successful, you can get the latitude and longitude information in
the $GPRMC field reported by the serial port. For more detailed tool usage information,
please refer to the user manual in the toolkit。
Chapter 3 Specifications
3.1 GPS performance parameters
Category
Index item
Typical value
Unit
Positioning time
(Test condition 1)
Cold start
27.5
S
Hot Start
＜1
S
Recapture
＜1
S

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
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A-GNSS
＜10
S
Sensitivity
(Test condition 2)
Cold start
-149
dBm
Hot Start
-162
dBm
Recapture
-164
dBm
track
-166
dBm
Precision
(Test condition 3)
Horizontal positioning
accuracy
2.5
m
High positioning accuracy
3.5
m
Speed positioning accuracy
0.1
m/s
Timing accuracy
30
ns
Power consumption
(Test condition 4)
Capture current
35
mA
Tracking current
20
mA
Operating temperature
--
-35℃--85℃
--
storage temperature
--
-55℃--100℃
--
humidity
--
5%--95%RH(No
condensation)
--
Note: The above result is GPS/Beidou dual mode working mode
[Test condition 1]: The number of receiving satellites is greater than 6, the signal strength of all
satellites is -130dBm, and the average value is taken after 10 tests, and the positioning error is less
than 10 meters.
[Test condition 2]: The external LNA has a noise figure of 0.8, the number of received satellites is
greater than 6, and the received signal strength value is locked within five minutes or without
losing lock.
[Test condition 3]: Open and unobstructed environment, continuous 24 hours power-on test, 50%
CEP.
[Test condition 4]: The number of receiving satellites is greater than 6, and the signal strength of
all satellites is -130dBm.
3.2 Basic parameters
Category
Description
letter of agreement
Support NMEA0183 V4.1 and previous versions, the maximum
fixed update frequency can reach 10Hz
Supported positioning system
BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
Support peripheral interface
UART (TXD/RXD)
Low power consumption
Support
Periodic low power consumption
Support
Direct low power consumption
Support
Parameter setting software
Support
Certification
Pending
Module size
22*20*5.8mm(L*W*H)
interface
6P wiring seat, spacing 1.0mm

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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power supply
VCC (3-5.5V)
Serial port
Communication
level
2.8V—3.3V（2.8V）
Baud rate (bps)
9600~921600，default 9600
Data bit
8bit
Stop bit
1
Chapter 4 Size and pin definition
22*20*5.8mm
22mm long
20mm wide
5.8mm in height
Pin number
Name
Description
1
CE
Power enable terminal, can be pulled down to enter low power
consumption mode (default is high)
2
1PPS
1PPS output, users can set frequency, duration, etc. through commands
3
GND
Module power ground wire
4
TXD
UART output (2.8V level)

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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5
RXD
UART input (2.8V level)
6
VCC
Module power supply (3V—5.5V)
Chapter 5 Hardware Design
It is recommended to use a DC stabilized power supply to power the module, the power supply
ripple should not exceed 30mV, and the module must be reliably grounded;
Please pay attention to the correct connection of the positive and negative poles of the power
supply. Reverse connection may cause permanent damage to the module;
Please check the power supply to ensure that it is within the recommended power supply voltage.
If it exceeds the maximum value, it will cause permanent damage to the module;
The serial ports TXD and RXD are LVTTL levels. If connected to a PC, RS232 level conversion
is required. User can use this serial port
Receive positioning information data and software upgrades.
This module is a temperature-sensitive device, and drastic changes in temperature will reduce its
performance. Try to stay away from high-temperature airflow and high-power during use.
Heating device
When designing the power supply circuit for the module, it is often recommended to reserve more
than 30% of the margin, and the whole machine is conducive to long-term stable operation;
The module should be as far away as possible from power supply, transformer, high frequency
wiring and other parts with large electromagnetic interference;
Assuming that there are devices with large electromagnetic interference around the module, it will
greatly affect the performance of the module. According to the intensity of the interference, it is
recommended to stay away from the module. If the situation permits, proper isolation and
shielding can be done；
Chapter 6 Working Mode
1. Please refer to "GK9501 Input and Output Format" in the data package for the command
format of related software functions of the module.
2. This module supports AGPS settings. For detailed setting methods, please refer to the "Goke
AGPS User Manual" in the information package.
Chapter 7 Related Models

Chengdu Ebyte Electronic Technology Co., Ltd. E108-GN02D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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Product number
IC
Support satellite
Package form
Size mm
Interface
E108-GN01
GK9501
BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
SMD
16*12*2.4
UART/GPIO
E108-CN02
GK9501
BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
SMD
10.1*9.7*2.4
UART/GPIO
E108-CN02D
GK9501
BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
DPI
22*20*5.8
UART
Chapter 8 Bulk Packaging