Thursday, March 26, 2020

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XH-M411 Digital Step Up Power Supply Module Boost DC-DC 3V-35V to 5V-45V Voltage Converter Regulator
XH-M411 Digital Step Up Power Supply Module Boost DC-DC 3V-35V to 5V-45V Voltage Converter RegulatorXH-M411 Digital Step Up Power Supply Module Boost DC-DC 3V-35V to 5V-45V Voltage Converter RegulatorXH-M411 Digital Step Up Power Supply Module Boost DC-DC 3V-35V to 5V-45V Voltage Converter Regulator



Features:
 
- This is a great DC to DC step-up power supply module for electric equipment, digital products, etc.
- Input and output are designed with screw terminals for convenient wire connection and disconnection.
- There is a heat sink on board that would ensure a better heat dissipation.
- Designed with USB and 2.5A large current output, can identify resistance and charge several phones at same time.
- It can also be used as a power supply for laptops or voltage regulator for solar panels.
 
Specifications:
 
Input voltage: 4.5-40V
Output voltage: 5-45V
Input current: max 5A 
Voltage Display Range: 5V-30V(if input voltage is lower than 4.5V, it will not display)
Voltage Display Error: +/-0.1V
Size: 72 x 48 x 16mm
 
Instruction:
 
1. Connect the module to power supply (4.5-40V), the input indicator light is on, and module is working normally.
2. Adjust the blue potentiometer knob (generally turn clockwise to step up and turn counterclockwise to step down) and check the output voltage with a multimeter until it meets requirement.
3.If the output voltage of the module can not be adjusted, which means it is always equal to the input voltage, please turn the potentiometer counter-clockwise for several circles then the voltage can be adjusted normally.
 
Note:
 
1. The output voltage is greater than the input voltage before it can be used! 
2. The current can not be greater than 5A .
3. The input voltage can not be less than 4.5V.
4. This kit requires professional knowledge and ability, please make sure you know how to use it.
 
Package Included:
 
1 x XH-M411 Digital Step Up Power Supply Module







XH-M411 Digital Step Up Power Supply Module Boost DC-DC 3V-35V to 5V-45V Voltage Converter RegulatorSee detail


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STM8S Development Board ARM STM8S207 + STM8S103 Board with Color Touch Screen Audio Voice Gravity Sensor Interface
STM8S Development Board ARM STM8S207 + STM8S103 Board with Color Touch Screen Audio Voice Gravity Sensor InterfaceSTM8S Development Board ARM STM8S207 + STM8S103 Board with Color Touch Screen Audio Voice Gravity Sensor InterfaceSTM8S Development Board ARM STM8S207 + STM8S103 Board with Color Touch Screen Audio Voice Gravity Sensor Interface



Features:
 
- Onboard two STM8S MCU, two single-chip MCU can communicate through the serial port. Users can comprehensive learning STM8S.
- STM8S207R8 MCU, with 52 GPIO, 64K FLASH, 6K SRAM.
- STM8S103F3 MCU, with 16 GPIO, 8K FLASH, 1K SRAM.
- Onboard 24M external crystal, support STM8S run at the fastest speed.
- Standard microUSB interface powered, horizontal SWIM interface, neat simple connection.
- Onboard a variety of peripheral interfaces, can access a variety of expansion modules.
- Onboard touch keys, buzzer, LED, photoresistance, RTC, FLASH etc.
- Onboard power indicator, RESET key.
- Download the test program at the factory.
SWIM Interface:The SWIM interface is the interface for the STM8S download program and the debugger, connect STM8S to the computer via STLink.

Application Examples:

5

6

 

Package Included:

1 x STM8S Development Board ARM STM8S207 + STM8S103 Board








STM8S Development Board ARM STM8S207 + STM8S103 Board with Color Touch Screen Audio Voice Gravity Sensor InterfaceSee detail


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STM32F407ZGT6 Development Board ARM M4 STM32F4 Board Compatibility Multiple Extension
STM32F407ZGT6 Development Board ARM M4 STM32F4 Board Compatibility Multiple ExtensionSTM32F407ZGT6 Development Board ARM M4 STM32F4 Board Compatibility Multiple ExtensionSTM32F407ZGT6 Development Board ARM M4 STM32F4 Board Compatibility Multiple Extension



Features:
 
- Main chip: STM32F407ZGT6, 114 GPIO, 1M FLASH, 196K SRAM
- Support multiple ROM extension: reserved EEPROM pad and flash pad, onboard micro-SD card interface , convenient to expand ROM.
- Simple and neat wiring: Micro USB interface power supply, horizontal SWD interface input.
- Lead out all GPIO, free connecting external circuit.
- Onboard SWD and JTAG interface, support STLINK and JLINK download.
- Onboard BOOT0 config key, support ISP serial download program.
- Onboard RTC cell holder. After installing the battery can provide power maintenance and backup.
- Onboard 8M external crystal, the maximum speed can be doubled to 168M.
- Size: 10.35cm x 7.50cm

2

3

5_

8_

Support Color touch screen TFT:

M4 GUI high speed test, draw about  6470 thousand pixels per second, the speed is 2 times more than M3.

 

6_

 

 

Simulation / Download Interface:

  • SWD interface: Recommended to use STLINK to download and debug program.

7_SWD

 

  • JTAG interface: can use JLINK to download and debug program.

 

8_JTAG

 

  • TTL Serial: support TTL serial download program.

8_ISP

Package Included:

1 x 
STM32F407ZGT6 Development Board








STM32F407ZGT6 Development Board ARM M4 STM32F4 Board Compatibility Multiple ExtensionSee detail


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WEAH-252 2-way Divider Frequency Speaker Crossover Home Audio High and Low Sound Quality Improvement
WEAH-252 2-way Divider Frequency Speaker Crossover Home Audio High and Low Sound Quality ImprovementWEAH-252 2-way Divider Frequency Speaker Crossover Home Audio High and Low Sound Quality ImprovementWEAH-252 2-way Divider Frequency Speaker Crossover Home Audio High and Low Sound Quality Improvement



Feature:

 Simple high and low frequency divider, can be used for bookshelf box or multimedia speakers, etc.
 Size: 67*44mm

 Package includes:

 1 x frequency divider






WEAH-252 2-way Divider Frequency Speaker Crossover Home Audio High and Low Sound Quality ImprovementSee detail


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LCD Display A6 Smart Attendance Machine Recorder Biometric Fingerprint Time Clock
LCD Display A6 Smart Attendance Machine Recorder Biometric Fingerprint Time ClockLCD Display A6 Smart Attendance Machine Recorder Biometric Fingerprint Time ClockLCD Display A6 Smart Attendance Machine Recorder Biometric Fingerprint Time Clock



Features :

Strictly follow the national security product standard.Suitable for the entrances and exits of office, factory, hotel, school, etc.
Adopting the Energy-saving fingerprint sensor and power management function, makes the product perfect.
Easy to learn, once enroll the fingerprint, you can share it on other Realand terminals.
2.4 inch TFT screen.
USB Flash Drive Download + USB Communication.
No need software, T9 input method editors, on the machine name, Department, frequency and other information, can be directly output attendance reports, user operation is simple
 
Specification :

Screen: 2.4 inch TFT
Fingerprint Sensor: (Energy-saving)Optical Fingerprint Sensor (Resolution:500DPI)
CPU: 32bit CPU
Fingerprint Capacity: 600
Log Capacity: 10,000 events
Communication: USB
Identification Mode: Fingerprint, Password,
USB Flash Drive Up/Download: Available
Record Query: Available(people can query their own attendance record after authentication)
Rotational Angle: Total Rotational Angle
Effective collecting area: 16x16mm
Identification Time : ≤1s
FRR: ≤0.1%
FAR: ≤0.0001%
Operating Mode: Off-line / Online
Authentication Mode: 1:1, 1:N
Language: Chinese, English, Korean
Voice Prompt: Available
Power Management: Auto Sleep Time, Auto Power Off Time
Power Adapter: DC 5V/1A
Operating Environment : Operating Temp: 0℃ ~ +45℃, Humidity(RH): 20%~80%
Size of the Terminal: 170(L) × 118(W) × 30(H) mm
Weight: 460g
 
Package includeds :

1 x Attendance Machine
1 x User Manual
1 x Power
4 x Screw
4 x Screw cap
 
Details pictures :












LCD Display A6 Smart Attendance Machine Recorder Biometric Fingerprint Time ClockSee detail


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