Elektronikus összetevők

3In1 BME280 GY-BME280 Digital Sensor SPI I2C Humidity Temperature and Barometric Pressure Sensor Module 1.8-5V DC High Precision 
BME280, the precision sensor from , is soldered onto PCB.
Not only the pressure and the temperature, this sensor can measure humidity.
It uses both I2C and SPI (supports 3-, 4-wire SPI) interface
 
Specifications:
Supply Voltage: 1.8 - 5V DC
Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz)
Operational Range:
Temperature: -40 to 85°C
Humidity: 0-100%
Pressure: 300-1100 hPa
Resolution:
Temperature: 0.01°C
Humidity: 0.008%
Pressure: 0.18Pa
Accuracy:
Temperature: -1°C
Humidity: -3%
Pressure: -1Pa
I2C address
SDO LOW : 0x76
SDO HIGH: 0x77
 
 
 
 
 
 
 

3In1 BME280 GY-BME280 Digital Sensor SPI I2C Humidity Temperature and Barometric Pressure Sensor Module 1.8-5V DC High Precision 
BME280, the precision sensor from , is soldered onto PCB.
Not only the pressure and the temperature, this sensor can measure humidity.
It uses both I2C and SPI (supports 3-, 4-wire SPI) interface
 
Specifications:
Supply Voltage: 1.8 - 5V DC
Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz)
Operational Range:
Temperature: -40 to 85°C
Humidity: 0-100%
Pressure: 300-1100 hPa
Resolution:
Temperature: 0.01°C
Humidity: 0.008%
Pressure: 0.18Pa
Accuracy:
Temperature: -1°C
Humidity: -3%
Pressure: -1Pa
I2C address
SDO LOW : 0x76
SDO HIGH: 0x77
 
 
 
 
 
 
 

SIM800L ESP-800L Core Boare Pin compatible ESP8266 5v power supply TTL UART
 

5S 18.5V 21V 10A high current Li-ion Lithium Battery BMS 18650 Charger Protection Board

skype : wingxine Request datasheet and demo video.
BTS7960B H-bridge 43A high-power motor driver Module Overview:
This driver uses Infineon chips BTS7960 composed of high-power drive full H-bridge driver module with thermal over-current protection. Double BTS7960 H-bridge driver circuit, with a strong drive and braking, effectively isolating the microcontroller and motor driver! High-current 43A
Features:
Double BTS7960 large current (43 A) H bridge driver;
5V isolate with MCU, and effectively protect MCU;
5V power indicator on board;
voltage indication of motor driver output end;
can solder heat sink;
 
 
Just need four lines from MCU to driver module (GND. 5V. PWM1. PWM2);
isolation chip 5 V power supply (can share with MCU 5 V);
size: 4 * 5 * 1.2 cm;
Able to reverse the motor forward, two PWM input frequency up to 25kHZ;
two heat flow passing through an error signal output;
isolated chip 5V power supply (can be shared with the MCU 5V), can also use the on-board 5V supply;
the supply voltage 5.5V to 27V;

Raspberry Pi Camera Module China Version
 
Description:
Raspberry Pi Camera Module China Version
 
This camera is made in China, but function is same with original UK version
 
Package Included:
1 X Raspberry Pi Camera
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Automatic irrigation module DIY kit soil moisture detection automatic water pumping.
Components included in the suit:
Relay module 1 block.
Soil moisture probe comparison module 1 block.
1 small pump
Battery box 1
USB power line 1.
The silicone software
50cm (pipe default 50cm)

 
NOTE: This module is step-up and step-down converter and  integrates LM2596 and LM2577.
Features:
In :                                                        Input positive
In-:                                        Input negative
Out :                                    Output positive
Out-:                                                      Output negative
Size:                                          53x38x21 (length*width*height)(mm)
Color:                                          As the picture show
Weight:                                       32g
Input voltage:                            3.5-28V
LED Indicator :                              YES
Output voltage:                          1.25-26V(Adjustable)
Input current:                            Rated current is 1A 
Output current:                         Rated current is 1A
 
 

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

Driver download address: http://drive.google.com/open?id=1us2XLkDSgD_9jPmDEjGY1nvqdUSqTszg
 
 
USB Programmer
 
Condition: New
 
Support 24EEPROM and 25 SPI flash 8pin/16pin chip
 
USB to TTL port, can getroot online
 
With CH341A chip
 
Recognize 25 series chip automatically
 
And support download STC series procedure of singlechip
 
With 24/25 status indicator lamp
 
SPI pin to support expanding the utility
 
Color is shown as pictures
 
PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!
 
Provide 5V-3.3V power supply output
 
Dimension:70mm x 27mm

A description of
a baby which is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. Use this sensor produced an automatic plant waterer device, so that the plants in your garden without people to manage. 
2 adjustable sensitivity blue digital potentiometer adjustment (Figure) 
4 Operating voltage 3.3V-5V- 
module dual output mode, the digital output is simple, more accurate analog output. 
A fixed bolt hole for easy installation 
7 small plates, PCB size: 3cm * 1.6cm 
8 power indicator (red) and digital switching output indicator (green) 
9 comparator LM393 chip, stable
Two small plate interface description (4-wire)
1 VCC external 3.3V-5V 
2 GND external GND 
3 DO small board digital output interface (0 and 1) 
4 AO the small plates analog output interface
Three instructions for use
Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil.
2 module in the soil humidity less than a set threshold value when the DO port output high, when the when soil humidity exceeds the threshold value is set, the module D0 output low;
3 small plates digital outputs D0 can be directly connected with the microcontroller, microcontroller to detect high and low, and thus to detect soil moisture;
4 small plates digital output DO shop relay module can directly drive the buzzer module, and which can form a soil moisture alarm equipment;
5 small plates analog output AO and AD module connected through the AD converter, you can get more accurate values of soil moisture;
Four shipping list
1 As shown in soil moisture detection module the finished board set (including the detection plate and soil moisture probes)
2 20cm DuPont line 5, to facilitate wiring;

   Support Arduin IDE
   more to see:
   .cc/d1/Getting_Started
 
 
 
 
 
   1 X D1 WiFi Uno
 

   Support IDE
   more to see:
    .cc/d1/Getting_Started
   1 X D1 WiFi Uno
 
 
 
 

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Features: 
MAX31855 chip Working voltage: 3~3.6V the temperature measuring range:200 to 1350 the temperature resolution: 0.25 C the output mode: SPI digital signal with a fixed mounting holes for easy fixed installation. module size:25mm15mm This module is only for reference routines and instructions, please note left after shoot-mail or contact sales technical hair item.

Warm prompt: Dear buyer, Our cheapest transportation services Economic category logistics (SunYou Economic Air Mail ,China Post Ordinary Small Packet Plus ) can be traced only befor it arrive your country,please choose Standard category logistics if you want a full tracking info.
Features: 
MAX31855 chip Working voltage: 3~3.6V the temperature measuring range:200 to 1350 the temperature resolution: 0.25 C the output mode: SPI digital signal with a fixed mounting holes for easy fixed installation. module size:25mm15mm This module is only for reference routines and instructions, please note left after shoot-mail or contact sales technical hair item.

 
 
 
 
 
 
 
DESCRIPTION
This 40pin Cable For raspberry pi model B . Suit for plus breakout and  breakout.
Length:20CM
 
 
 
 
 
 
 
 

3D Printer Part, Timing belt and pulley set sereis:
 
Item Name: GT2 pulley belt
 
Packing Detail :  
 
5 meters of gt2 timing belt 

Description:
- Capacitive touch sensor
- Requires soldering of header pins
- Perfect for your project
- Comes with a fully assembled board, and a stick of 0.1\" header so you can plug it into a breadboard.
- Using this chip is a lot easier than doing the capacitive sensing with analog inputs
- The CAP1188 has support for both I2C and SPI, so it easy to use with any microcontroller
- If you are using I2C, you can select one of 5 addresses, for a total of 40 capacitive touch pads on one I2C 2-wire bus
- Sensor Type: Capacitive Touch
- Sensing range: 8 button / key interfaces
- Sensitivity: I2C, SPI
- Voltage - Supply: 3 V ~ 5V
- Material: Plastic
- Size: Approx.40*18*4mm
- Add lots of touch sensors to your next microcontroller project with this easy-to-use 8-channel capacitive touch sensor breakout board, starring the CAP1188. This chip can handle up to 8 individual touch pads, and has a very nice feature that makes it stand out for us: it will light up the 8 onboard LEDs when the matching touch sensor fires to help you debug your sensor setup
Package includes:
1xCapacitive touch sensor
2xPin Header

Low-power dual-core 32-bit CPU for application processors
Main frequency up to 240MHz, computing power up to 600 DMIPS
Built-in 520 KB SRAM, external 4M PSRAM
Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
Support OV2640 and OV7670 cameras, built-in flash
Support image WiFi upload
Support TF card
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA/AP/STA AP working mode
Support Smart Config/AirKiss one-click distribution network
 
Support secondary development

Low-power dual-core 32-bit CPU for application processors
Main frequency up to 240MHz, computing power up to 600 DMIPS
Built-in 520 KB SRAM, external 4M PSRAM
Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
Support OV2640 and OV7670 cameras, built-in flash
Support image WiFi upload
Support TF card
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA/AP/STA AP working mode
Support Smart Config/AirKiss one-click distribution network
 
Support secondary development

Low-power dual-core 32-bit CPU for application processors
Main frequency up to 240MHz, computing power up to 600 DMIPS
Built-in 520 KB SRAM, external 4M PSRAM
Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
Support OV2640 and OV7670 cameras, built-in flash
Support image WiFi upload
Support TF card
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA/AP/STA AP working mode
Support Smart Config/AirKiss one-click distribution network
 
Support secondary development

Low-power dual-core 32-bit CPU for application processors
Main frequency up to 240MHz, computing power up to 600 DMIPS
Built-in 520 KB SRAM, external 4M PSRAM
Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
Support OV2640 and OV7670 cameras, built-in flash
Support image WiFi upload
Support TF card
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA/AP/STA AP working mode
Support Smart Config/AirKiss one-click distribution network
 
Support secondary development

Electrical properties
1.Electrical parameters:  JSN-SR04T 
2.Operating voltage:  DC 5V 
3.Quiescent current:  5mA 
4.Total current work:  30mA 
5.Acoustic emission frequency:  40khz 
6.Farthest distance:  4.5m 
7.Blind: 25cm 
8.Wiring:    5V (positive power supply) 
                Trig (control side) RX 
                 Echo (the receiver) TX 
                GND (negative) 
9.Resolution:  about 0.5cm 
10.Angle:  less than 50 degrees 
11.Working temperature:  -10 ~ 70 Celsuis
12.Storage temperature:  -20 ~ 80 Celsuis
 
Product Features
1.Small size, easy to use
2.Low voltage, low power consumption
3.High accuracy
4.Strong anti-jamming
5.Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions
 
Application
1.Horizontal distance; 
2.Obstacle avoidance, automatic control; 
3.The object approaches, there is a perceived 
4.Traffic control; 
5.Security, industrial control; 
6.Artificial intelligence, and research
 
 
 
 
 

Electrical properties
1.Electrical parameters:  JSN-SR04T 
2.Operating voltage:  DC 5V 
3.Quiescent current:  5mA 
4.Total current work:  30mA 
5.Acoustic emission frequency:  40khz 
6.Farthest distance:  4.5m 
7.Blind: 25cm 
8.Wiring:    5V (positive power supply) 
                Trig (control side) RX 
                 Echo (the receiver) TX 
                GND (negative) 
9.Resolution:  about 0.5cm 
10.Angle:  less than 50 degrees 
11.Working temperature:  -10 ~ 70 Celsuis
12.Storage temperature:  -20 ~ 80 Celsuis
 
Product Features
1.Small size, easy to use
2.Low voltage, low power consumption
3.High accuracy
4.Strong anti-jamming
5.Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions
 
Application
1.Horizontal distance; 
2.Obstacle avoidance, automatic control; 
3.The object approaches, there is a perceived 
4.Traffic control; 
5.Security, industrial control; 
6.Artificial intelligence, and research
 
 
 
 
 

Electrical properties
1.Electrical parameters:  JSN-SR04T 
2.Operating voltage:  DC 5V 
3.Quiescent current:  5mA 
4.Total current work:  30mA 
5.Acoustic emission frequency:  40khz 
6.Farthest distance:  4.5m 
7.Blind: 25cm 
8.Wiring:    5V (positive power supply) 
                Trig (control side) RX 
                 Echo (the receiver) TX 
                GND (negative) 
9.Resolution:  about 0.5cm 
10.Angle:  less than 50 degrees 
11.Working temperature:  -10 ~ 70 Celsuis
12.Storage temperature:  -20 ~ 80 Celsuis
 
Product Features
1.Small size, easy to use
2.Low voltage, low power consumption
3.High accuracy
4.Strong anti-jamming
5.Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions
 
Application
1.Horizontal distance; 
2.Obstacle avoidance, automatic control; 
3.The object approaches, there is a perceived 
4.Traffic control; 
5.Security, industrial control; 
6.Artificial intelligence, and research
 
 
 
 
 

wholesale 5pair/lot 433MHZ Superregeneration Wireless Transmitter Module Burglar Alarm and Receiver Module
Package :    
Quantity :  5pair=10unit 
Electronics Description :
packing:1pair/lot=1pcs receiver module 1pcs transmitter module
Specfications:
Receiver
- Model:MX-05V
- Voltage:DC5V              
- Current:4MA                
- Frequency:433.92MHZ  
- Sensitivity:-105DB
- Antenna:32CM single core wire,heliciform shaped
- Size:30*14*7mm 
Transmitter:
- Model:MX-FS-03V
- Transmitter distance:20-200Meters(influenced the voltage)  
- Voltage:3.5-12V    
- Size:19*19mm
- Working mode:AM             
-  Transmitter speed:4KB/S        
- Transmitter power:10mW             
- Frequency:433M
- Attenna:25cm Single core wire or mutil-core wire
- Pin arrangement: left-right(DATA;VCC;GND)
Applications:
- Remote controller,receive modulr,car bugular alarm,Rolling door,window,remote control LED, Amplifer and so on.
Note:
- VCC Voltage sho- Antenna is very important for working voltage,and the length of the antenna is 17cm
- the placement of the antenna is also critical for the performance of receiver, unbend the antenna when you install it , and avoid shilder and high voltage
 
 

Aluminum plate 250W high power step-up constant current voltage LED driver power supply for car laptop
[ Module name] 250W boost constant current module
[ Module properties: non-isolated step-up module (BOOST)
[ ] Input voltage : DC8.5V-48V
[ ] Input current : 10A (MAX) exceeds 8A please enhance heat dissipation
[ ] Quiescent current : 10mA (12V liter 20V , the output voltage , the higher the current will increase too quiet )
[ ] Output voltage : 10-50V continuously adjustable (The default output 19V shipping, For other voltages , please explain to the treasurer . )
12-80V fixed output ( for volume customers )
[Output current ] : 10A MAX exceed 6A please enhance heat dissipation ( input, output pressure related to the pressure the greater the output current is smaller )
[ Constant ] range : 0.2-8A
[ Output ]: = input voltage * 10A, such as: input 12V * 5A = 60W, input 24V * 5A = 120W,
Input 36V * 5A = 180W, Input 48V * 5A = 240W,                  
For more power , the two modules can be used in parallel, such as the output to be 10A, two modules can be used in parallel ,
The current per module can be transferred to 5A .
[ Temperature ]: -40 to 85 degrees ( ambient temperature is too high , please enhance heat dissipation )
[ Operating frequency ] : 150KHz
[ ] Conversion efficiency : up to 96% ( efficiency and input and output voltage, current , pressure -related )
[ Overcurrent protection ]: Yes ( input exceeds 13A, automatically reduces the output voltage , have a range of error . )
[ Input reverse polarity protection ]: Yes, ( less than 5A as the need for more in the reverse current in the input string into the diode )
[Installation method: 4Pcs 3mm screw holes
Connection method : Connection Output
[ Module size ] : Length 70mm width 36mm height 13mm
[ Single ] module : 50 g
 
An output voltage / current regulation method :
1 , adjust potentiometer RV1 , according to your battery or LED, the output voltage is set to the voltage value you need . 10 LED string voltage regulator such as 37V.
2 , clockwise adjustment potentiometer RV2 about 30 laps , the output current is set to a minimum , connected LED, adjust potentiometer RV2 to the desired current. After charging for battery , the battery fully discharged , and then to output , adjust to your desired current RV2 , ( be sure to use for charging batteries completely discharged before being allowed to transfer , because the battery power is left in the more , the charge current is smaller. )Please do not use the short-circuit current transfer mode , the circuit structure of the booster module can not be adjusted by way of a short circuit .
 
Applications:
1, DIY a power supply, 12V can input and output can 12-50V adjustable.
2 , the power supply for your electronic device , according to your system can set the output voltage value .
3 ,As car power supply for your laptop , PDA or a variety of digital products supply.
4, DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack , so you can go where light where books .
5 , solar panel regulator .
6 , to the battery , rechargeable lithium batteries .
 
7 , driving high-power LED lights.
 

 
Bluetooth MP3 Decoding Board Module w/ SD Card Slot / USB 2.0 Port / FM / Remote
 
 
- Color: Black white
- Display Mode: Single cycle and repeat all switch, it is repeat all as opening
- Menu Language: English
- Display Size: 1.5"
- Memory Card Type: SD
- Max Extended Capacity: 8GB
- Audio Formats: MP3 / WMA
- Tuner Bands: FM
- FM Frequency: 85~108MHz
- Other Connections: 1 x USB 2.0 / 1 x SD card slot
- Power Supply: 12V
- Voltage: 7~12V
- The interval between installation hold: 90mm
- Supports external signal switch directly
- Supports Bluetooth 3.0 EDR
- Supports USB / SD card / Bluetooth / FM / Line auto switch
- Built-in MP3 / WMA song decoding chip
- Supports play from USB / SD card / MMC card
- Supports USB / SD card switch PREV / next / fast forward / fast reverse / volume adjustment / play / pause / single cycle / mute / shut off / direct Selection song
- Supports Bluetooth PREV / next / fast forward / fast reverse / volume adjustment / play / pause / single cycle / mute / shut off
- Supports FAT 16 / FAT 32; Supports MP1 layer / MP2 Layer / MP3 Layer
- Supports 32~320Kbps MP3
- Supports power cut memory function: Remember the song and the volume before power cut
- Working voltage: 12V; Current: 800mA~1A
- Including panel decoder remote control 2-pin plug wire with reverse voltage protection 3-pin audio plug wire
- Packing List:
- 1 x MP3 decoding board
- 1 x Remote control (1 x CR2025 battery, included)
 
 
 
 
 
 
 
 
 
 
 
 

Description:
The speech recognition module is a compact and easy to control speech recognition board. This product is a speech recognition module associated with the speaker.It supports up to 80 voice commands. Up to 7 voice commands can work simultaneously. Any sound can be trained as a command. The user needs to train the module first before any voice commands can be identified.
 
The board has two control methods:
Serial port (Full Function)
General purpose input pin( Part of Function)
 
The general purpose output pins on the board can generate multiple waveforms while identifying the corresponding voice commands.
 
Specification:
Voltage: 4.4 -5.5V
Current: <40 mA
Digital Port: UART Port and GPIO 5V TTL Level
Simulate Port: 3.5mm mono microphone connector and microphone pin interface
Size: 31 mm * 50 mm
Recognition accuracy: 99% (in an ideal environment)
Supports up to 80 voice commands, 1500ms per voice (one or two words)
Up to 7 voice commands are valid at the same time
Easy to control: UART/GPIO
User controlled general purpose pinout
 
Package Included:
1 * Voice Recognition Module
1 * Microphone

AD9833 Programmable Microprocessors Serial Interface Module Sine Square Wave DDS Signal Generator Module