Specifications
- Type:
- Gps Receiver
- Use:
- GPS receiver module
- Screen Size:
- nane
- Place of Origin:
- Guangdong, China (Mainland)
- Brand Name:
- SKYLAB
- Model Number:
- SKM66, SKM66
- Warranty:
- 2 Years
- Name:
- High-performance Glonass/BD/Cheap GPS Solution Module For Drones & UAV
- Brad:
- SKYLAB
- High sensitivity:
- -165dBm
- Operating temperature range:
- -40 to 85℃
- mode:
- periodic mode
- sensor:
- Built-in low-field magnetic sensor HMC5883L
- SBAS:
- WAAS/EGNOS/MSAS
- Magnetic sensor interface:
- Serial Clock I2C Master/Slave Clock
- Certificate:
- CE FCC RoHS
- Packaging Details:
- SKM66 modules are shipped in ESC and moistureproof packing tray and with 24 units per tray. Each tray in 'dry' package
- Delivery Detail:
- Shipped in 3 days after payment
High-performance Glonass/BD/Cheap GPS Solution Module For Drones & UAV
1.Introduction:
The SKM66D is a high-performance GNSS all-in-one solution module that features super sensitivity, ultra low power and small form factor. The RF signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.
It is based on the high performance features of the MediaTek MT3333 single-chip architecture, Its –165dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GNSS was not possible before. It Built-in low-field magnetic sensor HMC5883L, the sensors’ solid-state construction with very low cross-axis sensitivity is designed to measure both the direction and the magnitude of Earth’s magnetic fields, from milli-gauss to 8 gauss.
2. Features:
GPS/GLONASS/BD/QZSS reseiver
Ultra high sensitivity: -165dBm
Extremely fast TTFF at low signal level
Built-in 12 multi-tone active interference canceller
Ultra low power consumption
Advanced Features: AlwaysLocate; AIC; EPO;EASY
SBAS (WAAS,EGNOS,MSAS,GAGAN)
Built-in low-field magnetic sensor HMC5883L
RoHS compliant (Lead-free)
3.Applications
LBS (Location based Service)
PND (Portable Navigation Device)
Vehicle navigation system
Aeromodelling
Interfaces Configuration
Power Supply
Regulated power for the SKM66D is required. The input voltage Vcc should be 3.3V to 5V range, current is no less than 100mA. Suitable decoupling must be provided by external decoupling circuitry (10uF and 1uF). It can reduce the Noise from power supply and increase power stability. Main power supply Vcc current varies according to the processor load and satellite acquisition. Maximum Vcc peak current is about 40 mA during acquisition.
UART Port
The module supports one full duplex serial channels UART. The serial connections are at 2.85V LVTTL logic levels, if need different voltage levels, use appropriate level shifters. the data format is however fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The UART is as NMEA output and PMTK command input.
I2C Interface
SKM66D built-in low-field magnetic sensor HMC5883L, Control of this device is carried out via the I2C bus. This device will be connected to this bus as a slave device under the control of a master device, such as the processor.
Datasheet can be downloaded at honeywell's web-site:
https://aerospace.honeywell.com/en/products/sensors/magnetic-sensing-solutions/3-axis-compass-integrated-circuits
Advanced Software Features
Standby Mode
User can issue software command to make GNSS module go into standby mode that consumes less than 200uA current. GNSS module will be awaked when receiving any byte. The following flow chart is an example to make GNSS module go into standby mode and then wake up.
Periodic Mode
When GNSS module is commanded to periodic mode, it will be in operation and standby periodically. Its status of power consumption is as below chart.
AlwaysLocate™
AlwaysLocateTM is an intelligent controller of periodic mode. Depending on the environment and motion conditions, GNSS module can adaptively adjust working/standby time to achieve balance of positioning accuracy and power consumption. In this mode, the host CPU does not need to control GNSS module until the host CPU needs the GPS position data. The following flow chart is an example to make GNSS module go into AlwaysLocateTm mode and then back to normal operation mode.
AGPS Support for Fast TTFF (EPO™)
The AGPS (EPO™) supply the predicated Extended Prediction Orbit data to speed TTFF ,users can download the EPO data to GPS engine from the FTP server by internet or wireless network ,the GPS engine will use the EPO data to assist position calculation when the navigation information of satellites are not enough or weak signal zone .
EASY™
The EASY™ is embedded assist system for quick positioning, the GPS engine will calculate and predict automatically the single emperies ( Max. up to 3 days )when power on ,and save the predict information into the memory , GPS engine will use these information for positioning if no enough information from satellites , so the function will be helpful for positioning and TTFF improvement under indoor or urban condition ,the Backup power (VBACKUP) is necessary .
Embedded Logger function
The Embedded Logger function don’t need host CPU (MCU ) and external flash to handle the operation , GPS Engine will use internal flash (embedded in GPS chipset ) to log the GPS data (Data format : UTC, Latitude , longitude, Valid ,Checksum ), the max log days can up to 2 days under AlwaysLocate™ condition .
AIC_Multi-tone active interference canceller
Because different application (Wi-Fi , GSM/GPRS,3G/4G,Bluetooth )are integrated into navigation system , the harmonic of RF signal will influence the GPS reception , The multi- tone active-interference canceller can reject external RF interference which come from other active components on the main board , to improve the capacity of GPS reception without any needed HW change in the design .SKM66D can cancel up to 12 independent channel interference continuous wave.
5.Picture reference:
6. Company profile:
.,located in Shenzhen, specialized in researching and developing GNSS (GPS,Beidou,GALILEO ,GLONASS), WiFi ,GPRS, Bluetooth technologies applications .Have launched some series of GNSS/GPRS/WiFi/Bluetooth module with the features of super sensitivity ,especially ,GNSS have ultra low power and fast TTFF ,easy to be integrated into customers' system and solutions .
Established in 2002, with the development of current most advanced wireless technologies ,SKYLAB has established a strong R&D team which is able to response to the ever-changing wireless communications market quickly and flexibly by the abundant experience and skill on developing RF technologies & wireless application technologies .
SKYLAB has been fully committed to provide innovative and high-quality GNSS/GPRS/WiFi/Bluetooth modules ,application solutions and best service to create long-term value and potential growth for our customers in the future .
Should you have any requests, please delet us an email at your earliest convenience. We should be on service for you at the shortest time!
http://www.alibaba.com/product-detail/Skylab-High-Intergrated-AP-Mini-WiFi_60484672410.html