Tus neeg siv phau ntawv
Table Of Contents
- Disclaimer
- 1 Product overview
- 2 Specification and parameters
- 3 Size and pins definition
- 4 Recommended circuit diagram
- 5 Hardware design
- 6 E108-Product test
- 7 Command format
- 7.1 GKC interface data format
- 7.2 GKC command
- 7.2. Response message
- 7.2.2 System reboot
- 7.2.3 Erase auxiliary information
- 7.2.4 Low power mode
- 7.2.5 Message interval configuration
- 7.2.6 Periodic low power mode
- 7.2.7 Set star search mode
- 7.2.8 Save star search mode
- 7.2.9 Serial port parameter setting
- 7.2.10 Set NMEA output
- 7.2.11 GPD document delete
- 7.2.12 Set NMEA serial port parameter
- 7.2.13 PPS configuration
- 7.2.14 Query message interval
- 7.2.15 Return message interval
- 7.2.16 Set NMEA output frequency
- 7.2.17 Query NMEA output frequency
- 7.2.18 Return the NMEA output frequency
- 7.2.19 Set reference coordinates
- 7.2.20 Query Reference Coordinate System
- 7.2.21 Return Reference Coordinate System
- 7.2.22 Query RTC time
- 7.2.23 Return RTC time
- 7.2.24 Set the speed threshold
- 7.2.25 Set HDOP Threshold
- 7.2.26 Get HDOP Threshold
- 7.2.27 Version number query
- 7.2.28 Return the current version number
- 7.2.29 Set location and time information
- 7.2.30 Set positioning mode
- 7.2.31 Query ID information
- 7.2.32 Return ID information
- 7.3 Support NMEA0183 protocol
- 8 GDP User Guidance
- 9 FAQ
- 10 Welding instruction
- 11 E108 Series
- 12 Packing for batch order
- Revision history
- About us
Chengdu Ebyte Electronic Technology Co.,Ltd. E108-GN User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
2
9
2 Specification and parameters
2.1 Working parameter
Main parameters
Performance
Remarks
Min.
Typ.
Max.
Working voltage (V)
3.0
5.0
5.5
≥5.0V can guarantee the output power
Communication level (V)
2.8
Risk of burnout with 5V TTL
Working temperature (℃)
-35
-
+85
Industrial grade design
Working frequency band (MHz)
2400
-
2518
Support ISM band
Power
consu-
mption
Emission current (mA)
35
Instantaneous power consumption
Receive current (mA)
20
Sleep current (μA)
120
Software shutdown
2.2 Hardware parameter
Main parameters
Description
Remarks
Baud rate (bps)
9600~921600
Default 9600
Data bits
8bit
Stop bit
1
Communication Interface
UART
（
TXD/RXD
）
or GPIO
Packaging method
Half hole
SMT
Dimensions
See Chapter 3 Pin
Definitions
Antenna interface
Stamp hole
Letter of agreement
Support NMEA0183
V4.1 and previous
versions
Maximum fixed update frequency up to 10Hz
Supported positioning
systems
BDS/GPS/GLONASS
2.3 GPS performance parameter
Category
Index Item
Typical Value
Unit
Positioning time
(Test Condition 1)
Cold start
27.5
s
Hot Start
<1
s
Recapture
<1
s
Positioning time
(Test Condition 1)
A-GNSS
<10
s
Sensitivity
(Test Condition 2)
Cold start
-149
dBm
Hot Start
-162
dBm
Recapture
-164
dBm