Elektronikus összetevők

 
 
Water flow sensor flowmeter Hall flow sensor Water control 1-30L/min 2.0MPa YF-S201
 

 
 
Water flow sensor flowmeter Hall flow sensor Water control 1-30L/min 2.0MPa YF-S201
 

 
40 bit RGB LED WS2812 Pixel Matrix Shield
 

Product Name: W88 Digital Temperature Controller
Temperature Measuring Range: -50~110°C
Temperature Control Range: -19~99°C
Temperature Measurement Accuracy: ±0.3°C
Resolution: 0.1°C
Temperature probe: NTC10K/B3435
Supply Voltage: DC 12V/AC 220V (Optional)
Output Current: 10A
Overall Size: 81x55x31mm/3.19x2.17x1.22"
Quantity: 1 Pc
 
Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
No Retail Package
 
Package Includes:
1 x W88 Temperature Controller

Product Name: W88 Digital Temperature Controller
Temperature Measuring Range: -50~110°C
Temperature Control Range: -19~99°C
Temperature Measurement Accuracy: ±0.3°C
Resolution: 0.1°C
Temperature probe: NTC10K/B3435
Supply Voltage: DC 12V/AC 220V (Optional)
Output Current: 10A
Overall Size: 81x55x31mm/3.19x2.17x1.22"
Quantity: 1 Pc
 
Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
No Retail Package
 
Package Includes:
1 x W88 Temperature Controller

4000w high power thyristor electronic voltage regulator for dimming control air-conditioning shells with insurance
 
 

New 125Khz EM4100 RFID Proximity ID Cards / Smart Card USB Reader
 
 
 
Package includes:
RFID ID Card Reader x 1
USB cable x 1
 
 
 

MPU9250 BMP280 module
(Three-axis gyroscope triaxial accelerometer triaxial magnetic field pressure)
Module Model: GY-91
Use chip: MPU-9250 BMP280
Power supply: 3-5v (internal low dropout regulator)
Communication: standard IIC / SPI communications protocol
-Chip 16bit AD converter, 16-bit data output
Gyroscopes range: ± 250 500 1000 2000 ° / s
Acceleration range: ± 2 ± 4 ± 8 ± 16g
Field range: ± 4800uT
Pressure range: 300-1100hPa
Using Immersion Gold PCB, machine welding process to ensure quality
2.54mm pitch
Module size 14.3mm * 20.5mm

Esta placa de desarrollo integra una batería ESP8266 18650 y una batería estándar de 3000mah 18650 que puede funcionar durante 17 horas.
 
 
 
Se llama "batería WiFi". Quiero facilitar el desarrollo del proyecto ESP8266 ESP8266 y agregar una batería 18650.
 
 
 
Cuando realices algunos proyectos ESP8266, no debes añadir energía para proporcionar energía. Este tablero micro puede resolver tales problemas. La batería de 3000mah 18650 puede hacer que ESP8266 funcione durante 17 horas o más.
 
¿Qué lo hace especial?
 
¡· Compatible con nodemcu!
 
· 18650 integración del sistema de carga.
 
· Indicación LED (verde significa que está lleno y rojo significa que se carga) se puede utilizar mientras se carga.
 
· Interruptor de control de fuente de alimentación.
 
· El conector SMT se puede utilizar en modo de suspensión · 1 LED programable adicional (gpio16).
 
· 0.5a de corriente de carga
 
· 1A de salida
 
· Protección de sobrecarga
 
· De protección de descarga
 
· 10 pasador digital de lectura/escritura/interrupción/PWM/I2C/soporte de línea (excepto D0)
 
· Tenga cuidado con la entrada analógica -.
 
Si la batería está en la dirección incorrecta, el chip de carga se destruirá. Debe prestar atención

Prototyping Expansion Shield Board For Raspberry Pi 2 board B and Raspberry Pi 3 board B
 
 
 
 
 
 
 
 

Description:
Voltage:DC4-7V
Communication  interface:Single-wire communication
LED Chip:WS2812B
Conncetion:
5V to 5V
pin 6 to DI
GND to GND
Package Included:
1 X 61X WS2812 5050 RGB LED
 
 
 

 
mini A6 GA6 GPRS GSM Kit Wireless Extension Module Board Antenna Tested Worldwide Store for SIM800L
 
 
 

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General features
•GPRS multi-slot class 12/10
•GPRS mobile station class B
•Compliant to GSM phase 2/2
- Class 4 (2 W @ 850/900 MHz)
- Class 1 (1 W @ 1800/1900MHz)
•FM: 76~109MHz worldwide bands with 50KHz tuning step
•Dimensions: 17.6*15.7*2.3 mm
•Weight: 1.3g
•Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)
•Supply voltage range 3.4 ~ 4.4V
•Low power consumption
•Operation temperature:-40°C~85°C
 
Specifications for GPRS Data
•PBCCH support
•Coding schemes CS 1, 2, 3, 4
•PPP-stack
•CSD up to 14.4 kbps
•USSD
Specifications for SMS via GSM/GPRS
•Point to point MO and MT
•SMS cell broadcast
•Text and PDU mode
 
Software features
•0710 MUX protocol
•Embedded TCP/UDP protocol
•FTP/HTTP
•MMS
•E-MAIL
•DTMF
•Jamming Detection
Specifications for voice
- Half rate (HR)
- Full rate (FR)
- Enhanced Full rate (EFR)
•AMR
- Half rate (HR)
- Full rate (FR)
•Hands-free operation
(Echo suppression)

Ramps 1.5 Upgrade Base On Ramps 1.4 3D Control Panel Mainboard Reprap Mendel For 3D printer parts

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Features:
100% Brand new and high quality!
Round and round and round they go!
The rings are 'chainable' - connect the output pin of one to the input pin of another. 
Use only one microcontroller pin to control as many as you can chain together! 
Each LED is addressable as the driver chip is inside the LED. 
Each one has 18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. 
Power the whole thing with 5VDC and you're ready to rock.
Package includes:
1 x RGB LED Ring WS2812 5050 RGB LED with Integrated Driver
 

42/57/86 TB6600 stepper motor driver 32 segments upgraded version 4.0A 42VDC for CNC Router machine Engraving Drilling and Milling Machine
 
 
If buyers need many pieces (such as more than 100pieces) ,i will give you more discountting ! pls contact me !
Why choose us ?
1. have large stock , today buyer place order ,tomorrow we will ship it !
2. original quality
3. package is very safe ,it cann't be destroyed on shipping way
 
Specifications:
 
This drive is an upgraded version of the TB6600, the breakdown of heightening to 32 segments,
for high segmentation purposes. Applicable stepper motor: 42,57,86 type of 2-phase 4-phase (4-wire 6 wire line 8)
 
Features:
 
1, 9V-42V DC power supply;
 
2, H-bridge bipolar constant-phase flow-driven;
 
3, the maximum output current of 4.0A eight optional;
 
4, up to 32 segments of six kinds of sub-modes available;
 
5, the input signal is high-speed optical isolation;
 
6, standard common anode single pulse interface;
 
7, offline hold function;
 
8, semi-enclosed chassis can accommodate more demanding environment;
 
9, provide energy semiautomatic current lock function;
 
10, built-in thermal protection and overcurrent protection.
 
 
Packing list :
One piece TB6600 stepper motor driver
 
 

GP2Y0A41SK0F 100% NEW 4-30cm Infrared distance sensor 0A41SK
 
 
 
 
 

Aviso cálido: estimado comprador, nuestros servicios de transporte más baratos, logística de categoría económica (correo aéreo económico SunYou, China Post Ordinary Small Packet Plus) solo se pueden rastrear antes de que llegue a su país, selecciona la logística de categoría estándar si quieres una información de seguimiento completa.
 
Módulo de transmisión inalámbrica NRF24L01SMD PA (SMD)
Un Características del producto:
1.2.4G banda abierta global ISM, el uso máximo de 20dBm para transmitir licencia de alimentación exenta
2. Admite seis canales de recepción de datos, 2 Mbit/s VoIP de alta calidad hace posible
Velocidad de 3,2 MBPS al recibir la corriente máxima de 25 mA
4 en los 2 Mbit/s tasa 0dBm salida de la corriente máxima 45mA
5 400nA modo de apagado
6 32uA Modo de espera consumo de energía
7.130.ee.uu. cambio rápido y tiempo de activación
8 funcionamiento de bajo voltaje en 2.2Vto3.6V
9. 27mm * 12mm tamaño ultrapequeño
Módulo SMD 1,27mm estándar de 10 pines
Aplicaciones: control remoto, telemetría, lectura de medidor inalámbrico, sistemas de control de acceso, paginación, sistemas de adquisición de datos industriales, etiqueta inalámbrica
Identificación, tarjetas inteligentes sin contacto RF, pequeños terminales de datos inalámbricos, sistemas de seguridad contra incendios, sistema de control remoto inalámbrico
Sistemas, adquisición de bio-señal, inalámbrico 232, inalámbrico 422/485 comunicaciones de datos.

Product List
Part No:RM065 102(1K ohm) 10pcs
Part No:RM065 103(10K ohm) 10pcs
Part No:RM065 104(100K ohm) 10pcs
Part No:RM065 105(1M ohm) 10pcs
Part No:RM065 202(2K ohm) 10pcs
Part No:RM065 203(20K ohm) 10pcs
Part No:RM065 204(200K ohm) 10pcs
Part No:RM065 501(500 ohm) 10pcs
Part No:RM065 502(5K ohm) 10pcs
Part No:RM065 503(50K ohm) 10pcs
10 Value Total: 100pcs 1box

rocker switch micro switch 3 feet 2 files

 
 
Features
1, using CY7C68013A-56 chip: low-power version of the enhanced 51-core, 16KB program data areas, frequency of 48Mhz, 480Mbps high-speed transmission protocol standards, in line with USB2.0 specification, backward compatible with USB1.1.
 
2, firmware, EEPROM: Complete in-system programming solution with a USB cable directly to download firmware, on-board to provide 16K (24LC128) a large program memory (EEPROM), used as storage VID / PID and the USB firmware, the program space to meet the CY7C68013A needs.
 
3, all the GPIO pin through the 2.54mm standard leads to very convenient for learners to expand their own design.
 
4, with the appropriate board firmware can be achieved through the core function of the logic analyzer
 
5, PDF format, provide the schematic and the Related information.
 
Package including
1 xCY7C68013A core board
 
  
 
 
 
 
 
 
 
 
4

VK-172 GMOUSE USB GPS/GLONASS USB
 
Supported operating systems: Windows 8/7/Vista/XP/CE
VK-172 automatically adapt the baud rate, the baud rate has any data output
Support Google Earth
C / A code, 1.023MHz stream
Receive Band: L1 [1575.42MHz]
Tracking Channels: 56
Support DGPS [WAAS, EGNOS and MSAS]
Positioning performance :
2D plane: 5m [average]
2D plane: 3.5m [average], has DGPS auxiliary.
Drift: <0.02m / s
Timing Accuracy: 1us
Reference coordinate system: WGS-84
Maximum altitude: 18,000 m
Maximum speed: 500m / s
Acceleration: <4g
Electrical properties:
Tracking sensitivity:-162dBm
Acquisition sensitivity:-160dBm
Cold Start Time: 29s [average]
Warm start time: 28s [average]
Hot start time: 1s [average]
Recapture Time: 0.1s [average]
Operating temperature:
-30 to 80
 
 
 
Package included
1X VK-172 GMOUSE USB GPS/GLONASS USB
 

Product update in 2013, Bluetooth 4.0 module. BT V4 module interface and MCU connection only need 4 wires: 5V (VCC) GND TXD RXD
Advantages of this module:
1. With logic level conversion circuit inside. No need to externally convert 5V level to 3.3V level
2. The power input port is equipped with anti-reverse circuit. Avoid accidental power plugging, which may cause the module to burn out.
 
Support Apple IOS5 /IOS6 system, please download the following materials before purchasing. Thank you!
 
HM-10 module data package download: (Already include IOS5/6 development source code, module AT commands, etc., please download by yourself, thank you!)
hm-10 tutorial:
Several important points of IOS, I hope customers will read this document before using the module! learn by heart.
(Applicable to Apple machines after 4s 5 5s)
Use on IOS:
1. IOS search for Bluetooth, not search and pair Bluetooth in Settings-"Bluetooth. (Only Bluetooth headsets can be connected in IOS settings. Wireless data devices cannot be found)
2. In IOS, search for the LightBlue software in the appstore, and then open the LightBlue software to search for HM-10, and pair and test sending and receiving!
---------------------------------------------
Android phone
1. First confirm whether the Bluetooth module of the Android phone hardware supports Bluetooth 4.0. (If the phone hardware module does not support it, the software will not be connected if it is done correctly!)
2. Upgrade the system to version 4.3 or later
3. The HMBLEComAssistant.rar in the data package can be used to test sending and receiving
------------------------------------------------
PS: Develop the mobile terminal of IOS or Android. Please visit http://www.jnhuamao.cn/download.asp?ID=0 to download the new source code for reference!
--------------HM-10 module configuration requires a USB to TTL device. No wireless pairing can be configured! (Because after wireless pairing, the data is directly transmitted transparently) ----------
1. The LED flashes slowly when it is not paired and connected with the remote device. At this time, you can use AT commands to configure the module.
2. The HM-10 module can only recognize all uppercase AT commands, and does not support lowercase and mixed case.
3. The factory default baud rate is 9600 8n1
Slave settings
AT BAUD0 //9600 will take effect after power off and restart
AT NAMEAC
AT PASS000000 //You must enter full 6 digits
AT TYPE1
AT ROLE0
 
Host settings:
AT BAUD0 //9600 will take effect after power off and restart
AT NAMEAC
AT PASS000000 //You must enter full 6 digits
AT TYPE1
AT ROLE1
Weight: 3.2g
Size: 46*17*5mm
 
 
 
 
 
4.2/0.95

 
Package Included:
1 x GP2Y0A02YK0F Distance Measuring Sensor with wire
 
 
 
 
 
 
 
 

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You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now?
Using only two pins, control 16 free-running PWM outputs! You can even chain up 62 breakouts to control up to 992 PWM outputs
• It\'s an i2c-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
• It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4 forward voltages)
• 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that\'s a lot of servos or LEDs
• Adjustable frequency PWM up to about 1.6 KHz
• 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
• Configurable push-pull or open-drain output
• Output enable pin to quickly disable all the outputs
We wrapped up this lovely chip into a breakout board with a couple nice extras
• Terminal block for power input (or you can use the 0.1" breakouts on the side)
• Reverse polarity protection on the terminal block input
• Green power-good LED
• 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
• "Chain-able" design
• A spot to place a big capacitor on the V line (in case you need it)
• 330 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
• Solder jumpers for the 6 address select pins
 
 
 
 
 
 
 

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You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now?
Using only two pins, control 16 free-running PWM outputs! You can even chain up 62 breakouts to control up to 992 PWM outputs
• It\'s an i2c-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
• It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4 forward voltages)
• 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that\'s a lot of servos or LEDs
• Adjustable frequency PWM up to about 1.6 KHz
• 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
• Configurable push-pull or open-drain output
• Output enable pin to quickly disable all the outputs
We wrapped up this lovely chip into a breakout board with a couple nice extras
• Terminal block for power input (or you can use the 0.1" breakouts on the side)
• Reverse polarity protection on the terminal block input
• Green power-good LED
• 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
• "Chain-able" design
• A spot to place a big capacitor on the V line (in case you need it)
• 330 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
• Solder jumpers for the 6 address select pins
 
 
 
 
 
 
 

Product parameters:
 
Product name: TPA3116D2 digital power amplifier board
Supply voltage: DC12-26V
Input current: above 3A
Output power: 100W Max
SNR: 100dB
Number of tracks: mono track
Product size: 79*54*16(mm)

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USB Volt Current Voltage Charger Capacity Tester Shell Case TEST Power Meter
Features:
 
100% Brand New.
Size (L x W x H): 68mm x 23mm x 12mm (26.5" x 9" x 4.7")
Measuring range: 4-9V
Current: 0-3.3A
Input voltage: 3.5-9V
Battery capacity: 0-99999mAh
Working time: 0-99H
Working hours and power capacity memory function after power off
Model number: USB
Precision: plus or minus 1%
Package Content: Ammeter Voltage Charger USB Detector Tester
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!

 
 
 
 
 
 
PIC Microcontroller Minimum System Board Development Board Universal Programmer Seat ICD2 KIT2 KIT3 FOR PICKIT 2 PICKIT3
 
Description:
PIC microcontroller minimum system board / universal programmer seat, dual-function board, user-friendly development, support all PIC microcontroller line package.
Board size: 106 * 52mm double-panel
 
Board resources:
LED can be connected to any I / O;
Crystal conversion interface, can be connected to any pin to meet all IC.
A button (do reset key).
All I / O external expansion;
Auxiliary power expansion port;
The line of SIP6 download / debug interface;
DC power connector.
Single-line 18B20 temperature detection interface;
Infrared receiver interface;
COM port lead (PIC16F877A)-based;
I2C interface based PIC16F877A.
 
Package Included:
1 x Programmer seat dual-function board
1 x 12m crystal
1 x 6 PIN-1PIN Dupond line
5 x 1 PIN-1PIN DuPont line
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
16 LED drivers, each output can be programmed
 
 
 
 
 
 

 
 
16 LED drivers, each output can be programmed
 
 
 
 
 
 

 
 
 
 
power supply: 5V
Frequency range: 76-108MHZ
PCB size: 31*30mm
With reverse polarity protection diode
With power output filtering sensor
Directly plug antenna interface
I2C bus communication
Multi capacitor combined filter
Blue LED power indicator
FM chip module TEA5767
Onboard 3.5mm audio interface
If connects with singlechip, only connect the Power Ground and two I2C communication cable
Features:
LC harmonic oscillator use low cost fixed chip
No need to adjust Intermediate frequency
High sensitivity(low noise RF input amplifier)
High power auto gain control AGC circuit
Soft mute
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

1.Product Features
1). The ultra-thin, subminiature
2). The full voltage input (90 ~ 264 Vac)
3). Low ripple and low noise
4). Output overload short circuit protection function
5). High efficiency and power density
6). Product design to meet the EMC and safety testing requirements
7). Low power consumption, green environmental protection, no-load loss < 0.1 W
8). 100% load test
9). Meet the requirements of UL, CE,
 
2. Environmental Conditions 
1). Working temperature:  -20- 60 Celsius
2). Storage temperature:   -40- 80 Celsius
3). Relative Humidity:   5-95%
4). Cooling:   natural cooling
5). Atmospheric pressure:  80-106 Kpa
6). Altitude:    ≤2000m
7). Vibration:  Vibration coefficient 10 ~ 500Hz, 2G10min / 1cycle, 60min.each along X, Y, Z axes
 
3.Electrical Characteristics (at ambient temperature test)
1). Rated input voltage:  100-240 VAc
2). Input voltage range:  90-264VAc
3). Maximum input current:  ≤0.2A
4). Input current surge:  ≤10A
5). Maximum input voltage:  ≤270VAc
6). Enter slow start:  ≤50mS
7). Input Low Voltage Efficiency:  Vin = 110VAc, full load ≥69%
8). Input High Voltage Efficiency:  Vin = 220VAc, full load ≥70%
9). Long-term reliability:  MTBF≥100,000h
10). Load rated output voltage:   5 ± 0.1VDc
11). Full rated output voltage:     5 ± 0.2VDc
12). Short-term maximum output current:        ≥1000mA
13). Maximum output current for a long time:   ≥600mA
14). Voltage Regulation:  ± 0.2%
15). Load regulation:      ± 0.5%
16). Output ripple and noise (mVp-p):   ≤50
17). Switch overshoot amplitude:  ( rated input voltage, output load plus 10% ) ≤5% VO
18). Output over-current protection:   output maximum load of 150-200% A
 
 

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You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now?
 Using only two pins, control 16 free-running PWM outputs! You can even chain up 62 breakouts to control up to 992 PWM outputs
It's an i2c-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4  forward voltages)
6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs
Adjustable frequency PWM up to about 1.6 KHz
12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
Configurable push-pull or open-drain output
Output enable pin to quickly disable all the outputs
We wrapped up this lovely chip into a breakout board with a couple nice extras
Terminal block for power input (or you can use the 0.1" breakouts on the side)
Reverse polarity protection on the terminal block input
Green power-good LED
3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
"Chain-able" design
A spot to place a big capacitor on the V  line (in case you need it)
330 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
Solder jumpers for the 6 address select pins
 
 
 
 
 

Description:
100% brand new and high quality.
ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters, and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with dual-mode Wi-Fi and Bluetooth chips, which is safe, reliable, and scalable to a variety of applications. 
 
Features: 
High performance-price ratio
Small volume, easily embeded to other products
DC 5V-12V 
1 analog input(3.2V max input)
A Micro USB connection
Compatible with for Arduino
D1 R32=WiFi Bluetooth UNO
 
Size: 6.8x5.3cm/2.68x2.09inch

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Bluetooth main chip models: CC2541
 
Product Introduction
 
    JDY-08 transparent transmission module is based on the Bluetooth 4.0 protocol standard, the working frequency of 2.4GHZ range, modulation scheme is GFSK, the maximum transmit power of 0db, maximum transmission distance of 80 meters, the use TICC2541 chip design, allowing users to modify the device name through AT commands service UUID, transmit power, pairing password instructions, convenient to use and flexible.
Description:
 
The new V508 firmware upgrade to support serial
Ultra-low standby power consumption 400uA ~ 800uA
Ultra-long connection distance 100 ft / 60 m
Fast reaction speed 0.4 seconds
For Apple, Android
Receive no byte limit, up to 6K Bytes / sec.
MFI does not need to do
Android 4.3 perfect support.
 
 
 

GY-63 MS5611 High-resolution Atmospheric Height Sensor Module IIC / SPI Communication
Description:
 
Chip built-in 24bit AD converter
Immersion Gold PCB, high quality, machine welding process to ensure quality
The use of chips: MS5611
Power supply :3-5v (internal low dropout regulator)
Communication modes: standard the IIC / SPI communication protocol
 
 
Package included:
1 xGY-63 MS5611Module
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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Note: Raspberry come with LED dot matrix screen, it would be more trouble. Raspberry Pi because of the limited number of IO, IO control if each one LED. The most they can take control of about 35 LED.
 
Use special LED constant current control chip, basically only takes Raspberry Pi SPI interface (3 IO 2  enabled) you can control 64 LED lights. LED dot matrix drivers only became possible!
 
 
 
 
 
 

TPA3116D2 Bluetooth Digital Power Amplifier Board Dual Channel Audio Amplifier Board 120W*2 power
Adopting digital power amplifier chip TPA3116D2 college class D run, integrates CSR8635.4 version of bluetooth module, power amplifier chip that holds a greater than 90% of the power efficiency and low loss characteristics leisure, advanced modulation system configuration, advanced modulation system configuration, advanced into degree reduced the number of components, integrated with the protection circuit, including overvoltage, undervoltage, overheating, DC detection and short circuit protection, heat-resistant enhanced package, Bluetooth transmission 10 meters or so, the use of the environment is not, the transmission distance is different, if DIY speakers, it is best not to use the bluetooth signal shielding material.
Product name: TDA3116D2 digital power amplifier board
Chip type: TDA3116D2
Bluetooth Module: BTM836/CSR8635(version 4.0)
Transmission distance: 10 m Max (no interference block)
Supply voltage: DC12-24V (positive inside and negative outside)
Supply current: > 3A
Output power: 120W*2
Number of tracks: dual tracks (high and bass adjustment)

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2PCS=1PCS ENC28J60 MODULE 1PCS SD CARD MODULE
 
 
 
ENC28J60 module:
 
1,on-boardENC28J60-I/SOchip
2, theboard25MHZcrystal
3,onboardHR911105Anetwork interface
4,3.3 VPin-powered
5,the boardsize56(mm)x34 (mm)
Note:We servethePDF formatschematic andprovideforthemodule51(STC89LE516RD )theAVR(M64),LPC (LPC2103)thefour platformstheSTM32(of STM32F103VB)test proceduresand relevant information, they will notprovide detailed technicalsupport
SD card module:
Brand new and high quality.
SD Card module can make your SD application more easier and simple.
It is easily interfaced as a peripheral for sensor shield module.
Through programming, you can read and write to the SD card using for .
Can be used for SD Card more eaisly, such as for MP3 Player, MCU/ARM system control.
All SD SPI pins output, MOSI, SCK, MISO and CS.
Support 5V/3.3V input.
Size:5.1cm x 3.1cm - 2.01inch x 1.22inch.
 
 
 
 
 
 
 
 

GP2Y0A21YK0F 100% NEW 2Y0A21 10-80cm Infrared distance sensor
 
 
 

ESP8266 ESP-01 ESP-01S DS18B20 Temperature Humidity Sensor Module esp8266 Wifi NodeMCU Smart Home IOT DIY Kit
 
 
 
 

 
 
 Version 1.4 uses surface mount capacitors and resistors to further cover edge issue cases.

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Ardumoto L298P AVR/LPC/STM32 UNO/MEGA Motor Driver Shield For
Description:
- The new version of this shield allows for either 3.3 or 5v logic, a separate and more robust VIN connection, and the PWM input has moved to pin 3.
- This is a motor shield for that will control two DC motors. Based on the L298 H-bridge, the Ardumoto can drive up to 2 amps per channel. The board takes its power from the same Vin line as the board, includes blue and yellow LEDs to indicate active direction, and all driver lines are diode protected from back EMF.
- Control for motor attached to OUT1/2 is connected to digital line 12 (direction A) and digital line 3 (PWM A).
- Control for motor attached to OUT3/4 is connected to digital line 13 (direction B) and digital line 11 (PWM B).CJMCU
- Compatible screw terminals and connectors are listed below. They are not included in this SKU. You will need to add them to your cart separately.
Package list:
-  1 x Ardumoto L298P AVR/LPC/STM32 UNO/MEGA Motor Driver Shield
 
 
 
 
 
3.0

Digital Temperature & Humidity Meter Tester Domestic Hygrometer HTC-1 with Clock
100% NEW high quality
LCD display sorrounding temperature, humidity and time simultaneously
Memory of MAX & MIN measuring value
12/24 format
ºC / º F unit selectable
Convenient wall mount and stand design
Specification:
Temperature range:
Humidity range:10% ~99% RH
Temperature :-50~ 70\'C(-58~ 158\'F)
Resolution: Temperature:0.1ºC(0.1°F)
humidity:1% RH
Accuracy:
Temperature :±1ºC(1.8°F)
Humidity :±5% RH(40% ~80% )
Weight :Approx. 160g
Product dimension:100x108x20mm
Storage condition:-20ºC~60ºC,20~80% RH
Package Included:
1x Temperature &Humidity
1 x 1.5v(AAA size)

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.
 

 
 
 
 
 
Product Description
 
The boost module uses advanced microcontroller and U.S. imports boost controller,it eliminatestheneed for a current sense resistorby utilizing the powermosfet\\\'s on-resistance,thereby maximizing efficiency,up to 96.4% .Importedhigh-power low-resistancemostransistor, heavy current and high efficiencyschottky,wider and thicker PCB traces,is a guarantee of high-power and low temperature rise. When the input and output voltage is greater than 20V,the module up to 128W output power.
 
Features:
1.LED power indicator.
2. Button to switch measurement of the input or output voltage, and LED indicates the current measurement of the input or output voltage; The nixie tube can be turned off by another button. Mentioned states are able to be memorized, is not lost even if the poweris disconnected. (On-board marked "IN" LED is turned on, the nixie tube display input voltage value, "OUT" LED bright display is the output voltage value).
3.Special launch, the voltmeter calibration function,will never exist voltmeter inaccurate!
Voltmeter calibration method:
(1)Output voltage calibration steps
Step 1,adjust the right button so that "OUT" LED lighted, the voltmeter shows the value of output voltage;Press the right button for more than 2 seconds, release, voltmeter and "OUT" LED flashes in synchronization so that youenter the output voltage calibration mode.
Step 2,press the right button (normal speed), the voltage value is adding up a unit;Press the left button, minus a unit;Due to a unit is less than 0.1V, the minimum voltage display to 0.1V, so you need to continuously press 1-5 times to see the voltmeter change 0.1V,how many times voltmeter change 0.1V by pressing the key, depending on the current display voltage, the higher the voltage, the fewer the number of press.
Step3,press the right button for more than 2 seconds, release, to exit the output voltage calibration mode. All parameters set to automatically power down to save.
(2)Input voltage calibration steps
Step 1,adjust the right button so that "IN" LED lighted, the voltmeter shows the value ofinput voltage; press the right button for more than 2 seconds, release, voltmeter and "IN" LED flashes in synchronization so that you enter theinput voltage calibration mode.
Steps 2 and 3, consistent with the output voltage calibration method.
 
Performance parameters
1.input voltage range:3~35VDC(Note: the input voltage is less than 4V, voltmeter failure)
2.input current:9A (max)
3.output voltage range:3.5~35VDC(please to ensure that output voltage above on input voltage)
4.output current: 6A (max)
5.output power: 75W (when the input and output voltages greater than 20V up to 128W)
6.conversion efficiency: 96.4% (max)
7.voltmeter range: 4 to 40V, error±0.1V
8.short circuit protection: yes(limit current 14A).(Note: connected to high-power load, just switched on the impact of current very general meeting current limiting self-locking protection, it is recommended to be switched onfirstly, and then access the load).
9.input reversepolarityprotection: None (if required, high current diode in series with the input).
10.L x W x H = 67 * 43 * 12mm
Application:
1.DIY a regulated power supply, 5V input can be output 5-35V adjustable.
2.The power supply for your electronic equipment.For example,3.7V lithium boost to 5V for mobile power;7.4V or 12V boost to the laptop power supply to 19V.
3.As the vehicle power supply for your laptop, PDA or a variety of digital products supply.
 
 
 

PN532 NFC RFID module V3, NFC with Android phone extension of RFID provide Schematic and library
 
 
 
 
 

 
Features and Benefits:
1.Industry-leading noise performance through proprietary amplifier and filter design techniques
2.Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals,and prevents offset drift in high-side,high voltage applications
3.Total output error improvement through gain and offset trim over temperature
4.Small package size, with easy mounting capability
5.Monolithic Hall IC for high reliability
6.Ultra-low power loss: 100 internal conductor resistance
7.Galvanic isolation allows use in economical, high-side current sensing in high voltage systems
8.3.0 to 5.5 V, single supply operation
9.120 KHz typical bandwidth
10.3 us output rise time in response to step input current
11.Output voltage proportional to AC or DC currents
12.Factory-trimmed for accuracy
13.Extremely stable output offset voltage
14.Nearly zero magnetic hysteresis
15.Board Size:38.22*18.03mm
16.Typical application:
 
Application 1. The ACS758 outputs an analog signal,VOUT,that varies linearly with the uni- or bi-directional AC or DC primary sampled current, IP, within the range specified. CF is for optimal noise management, with values that depend on the application.