Kereskedelmi, irodai és ipari

Features:
1.Model: TDA7379
2.Name: Amplifier Board
3.With fever-AD828 preamplifier
4.Preamp input and output coupling capacitors Promise
of capacitors fever, better than the polarity effect.
5.Power amplifier chip:TDA7379 AD828
6.Power supply :DC9-17.5V
7.Output power:38W 38W
8.Board size: 5x3.2cm/1.97x1.26inch   
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!
Package Contents:
1x Amplifier Board

 
IC： TB67S109AFTG
Tracking info of  China Post Ordinary Small Packet Plus can be check here: www.17track.net/en
 
 
 
If you need the most detailed information, please contact me and/or when submit orders to tell me your email address
 
 
 
Description:
 
 
 
Quantity: 1pc
Size:75*50*35(mm)(LxWxH) / 2.95''x1.96''x1.37'' (approx)
Rated maximum output: ± 3A, peak 3.5A.
Working voltage DC 10V-35V. Recommended to use a switching power supply DC24V power supply.
Using the Toshiba TB6560AHQ new original chip with low voltage shutdown, overheating stop and over current protection circuit to ensure optimal performance.
 
For two-phase within 42,57 stepping 3A / four-phase / of line four / six-wire stepper motor, and is not suitable for more than 3A stepper motor. Automatic half current function.
6N137 high-speed optical coupling, guarantee high speed without losing step.
Subdivision: whole step, half-step, step 1/8, 1/16 step, a maximum of 16 Subdivisions.
Features similar products:
 
1 current grade-by-adjustable to meet your demand for a variety of applications.
 
2 semi-automatic flow adjustable.
 
3 6N137 high-speed optical coupling, guarantee high speed without losing step.
 
4 plate printed setup instructions operation without manual also.
 
5 thick teeth radiator, good heat dissipation.

Motor Drive Shield Expansion Board L293D For Arduino Duemilanove Mega2560 UNO
Manufacturer is coming!We are the real manufacturer, if you want to agent for my products, please contact me
Features :
L293D is a monolithic integrated, high voltage, high current, 4-channel driver.Basically this means using this chip you can use DC motors and power supplies of up to 36 Volts, thats some pretty big motors and the chip can supply a maximum current of 600mA per channel, the L293D chip is also what's known as a type of H-Bridge. The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e.g. motor.
- 2 interface for 5V Servo connected to the  high-resolution dedicated timer - no jitter!
- Can drive 4 DC motors or 2 stepper motors or 2 Servo
- Up to 4 bi-directional DC motors with individual 8-bit speed selection
- Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping.
- 4 H-Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection, can run motors on 4.5V to 36V DC
- Pull down resistors keep motors disabled during power-up
- reset button
- 2 external terminal power interface, for seperate logic/motor supplies
- Tested compatible for  Mega, Diecimila & Duemilanove
Package Included:
Motor Drive Shield L293D*1

HC32L130J8TA core board Huada development board/ARM embedded microcontroller/low power MCU

3D printer accessories TMC2225 stepper motor drive module 256 subdivision mute instead of A4988

Name: ADXL335module(triaxial accelerometeranalog output)
Model: GY-61
Usingthechip: ADXL335
Power supply:3-5v
AnalogX, Y, Zthree-axisoutput
Directoutputanglecode

Brief introduction
     The DRV8825 stepper motor driver carrier board TI DRV8825 micro bipolar stepper motor drive is a breakthrough. The module has a pinout and interface with our A4988 stepper motor driver carrier is almost the same, so it can be used as a better performance of the pull-down menu board replacement in many applications. DRV8825 features an adjustable current limit, overcurrent and overtemperature protection, six micro-resolution (down 1/32-step). It uses 8.2 - 45 V, can provide up to about 1.5 per phase no heat sink or forced air flow (rated up to 2.2 per volume sufficient additional cooling).
Product Features
A simple steps and direction control interface
2 six different steps resolutions: full step, half step, 1/4-step1/8-step1/16-step, 1/32-step
3.CAN interface directly with 3.3 V and 5 V systems
4 Over-temperature thermal shutdown, overcurrent shutdown, undervoltage lockout
5 short to ground short circuit load protection
6.4 Layer 2 oz copper PCB, in order to improve heat dissipation
7 exposed solder ground below the bottom of the driver IC on the printed circuit board pad
8 module size, pin and interface matching A4988 stepper motor driver operators in many ways
9 adjustable current control lets you set a potentiometer, which lets you use the stepper motor's rated voltage or more, in order to achieve a higher rate of maximum output current step
10 Intelligent chopping control automatically selects the correct current decay mode (fast decay or slow decay)
11 Maximum 45 V supply voltage
12 built-in voltage regulator (the need for any external logic supply voltage)
Why you should choose our driver?
1. We have the most preferential price
2. Our heatsink with sticker, so easy to use    

his wireless Transceiver module is an easy and suitable module if you want to setup your wireless communication system with low cost!! It can achieve a good balance between wireless transition performance and cost! You can easily add it with your own MCU/ARM/PIC/AVR/STM32 system! What\'s more, this nRF24L01 module is designed with Power amplifier and SMA antenna. This allowed you to use the wireless communication up to 1100 meters! (No barrier)
 
 
 
Specifications:
Frequence: 2.4GHz~2.5GHz
Operating voltage: 3 ~ 3.6V Max
Current: 115mA
Multi-frequency: 125 frequency
Support up to six channels of data reception
 
 
Package Included:
1PCS*New NRF24L01 PA LNA SMA Antenna Wireless Transceiver communication module
1PCS*SMA Antenna
 

MCU-219 INA219 I2C interfaces Zero-Drift bi-directional current / power monitoring sensor module
 
Zero MCU-219 module is an I2C interface with a drift, bi-directional current / power monitor integrated circuit (IC), TI further expand the energy-saving electronic products camp. INA219 industry with the highest accuracy and the most compact size, can not only monitor the voltage drop across the shunt resistor, the shunt supply voltage sensing, while also computing power. The device SOT23 package can provide a small number of current sensing servers, laptops, power, battery management and automotive and telecommunications equipment, low cost solution.
 
INA219 from -40C to 1% of the maximum achievable accuracy error in  the temperature range of 85C, the maximum offset 100 uV. The combined advantages of high precision product 12-bit resolution, to help customers reduce the pressure drop across the shunt resistor as much as possible, thereby minimizing power losses and power consumption and board space. The device can be sensed bus voltage range of 0 V to 26 V.
 
INA219 Other important features include:
 
Programmable calibration register can be directly read current in amperes, and the reading power in watts.
Sampling can be averaged up to 128, in order to achieve filtering in noisy environments.
I2C interface has a timeout settings, not only to prevent bus lock, but may also provide high-speed mode, to meet the communication requirements of up to 3.4 MHz.
Support all the features of the INA219 are software programmable.
A single power supply, the operating voltage is between 3.0 to 5.5V.

Random Color! Random Color! Random Color!
Introduction:
As an electronic enthusiast, an engineer, or a fan, is often faced with his own DIY experience on a breadboard. If the cloth is clean and easy to understand, the fast circuit is what we have been entangled.
The breadboard assistant includes 14 quality jumpers of different lengths, each of which has a different color, meaning that one kit includes 140 quality jumpers of different lengths.
Transparent high quality storage box for easy access without loss
140 long and short quality jumpers, red, orange, yellow, green, blue, purple, gray, brown, white. Box size: 165 × 55 × 10mm; the length of the line is not the same, the length of the line has a total of 14 lengths each 10 lengths, a total of 140 (mm): 2,5,7,10,12,15,17 , 20, 22, 25, 50, 75, 100, 125,

ESP32-DevKitC core board ESP32 development board ESP32-WROOM-32D ESP32-WROOM-32U
ESP32-DevKitC V4 Getting Started Guide
This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference.
What You Need
ESP32-DevKitC V4 board
USB A / micro USB B cable
Computer running Windows, Linux, or macOS
You can skip the introduction sections and go directly to Section Start Application Development.
Overview
ESP32-DevKitC V4 is a small-sized ESP32-based development board produced by Espres-sif. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard.
To cover a wide range of user requirements, the following versions of ESP32-DevKitC V4 are available:
different ESP32 modules
ESP32-WROOM-32
ESP32-WROOM-32D
ESP32-WROOM-32U
ESP32-SOLO-1
ESP32-WROVER
ESP32-WROVER-B
ESP32-WROVER-I
ESP32-WROVER-B (IPEX)
male or female pin headers.
For details please refer to Espre-ssif Product Ordering Information.
Functional Description
The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V4 board.

ESP32-DevKitC core board ESP32 development board ESP32-WROOM-32D ESP32-WROOM-32U
ESP32-DevKitC V4 Getting Started Guide
This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference.
What You Need
ESP32-DevKitC V4 board
USB A / micro USB B cable
Computer running Windows, Linux, or macOS
You can skip the introduction sections and go directly to Section Start Application Development.
Overview
ESP32-DevKitC V4 is a small-sized ESP32-based development board produced by Espres-sif. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard.
To cover a wide range of user requirements, the following versions of ESP32-DevKitC V4 are available:
different ESP32 modules
ESP32-WROOM-32
ESP32-WROOM-32D
ESP32-WROOM-32U
ESP32-SOLO-1
ESP32-WROVER
ESP32-WROVER-B
ESP32-WROVER-I
ESP32-WROVER-B (IPEX)
male or female pin headers.
For details please refer to Espre-ssif Product Ordering Information.
Functional Description
The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V4 board.

If it is a 4R speaker, the voltage should not be higher than 15V. 8R speaker should not be higher than 18V. This is the 15W version
XH-M314 TPA3118 2X45W 12V 24V Stereo o Bluetooth Digital Power Amplifier Board Amplificador
Chip Type: TPA3118
Chip protection: overvoltage / undervoltage / overtemperature / DC detection / short circuit
Supply voltage: DC12-28V
o input : 3.5mm AUX /Bluetooth (Default Bluetooth priority)
Output power: 45Wx2
Channel: Two-channel output
Output impedance:4~8 ohm Speaker
Size: 71 x 52 x 13mm
colour:blue
Material:ABS
Package Contents:
1 x power amplifier board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.

Description:This is a small buzzer for the LilyPad system. Use 2 I/O pins on the LilyPad main board and create different noises based on the different frequency of I/O toggling. Loud enough to hear inside a pocket but not obtrusively loud.
 
Please note:This is an inductive buzzer meaning that is will act as a short to ground if you are not actively driving it. We recommend you put both I/O pins to low (0V) when the buzzer is not used. Also, it's come to our attention that washing these buzzers will damage them. Until we've figured out a solution to this, avoid washing any portion of your project that contains one of these buzzers.
 
LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available. They're even washable!
 

Description:
Module Properties: non-isolated step-up module (BOOST)
65 * 56.5 * 23 (length * width * high) (mm)
Input voltage :10-32V
Output voltage: 12-35V (adjustable)
Output Current: 6A (MAX)
Input Current: 10A (MAX) (Please enhance heat dissipation if more than 10A)
Output power: natural cooling 100W (MAX), enhance heat dissipation 150W (MAX)
Easy to drive 65W 90W dual-core notebook.
Use a 12V battery drive 19V 3.42A notebook, the module temperature about 45c
Conversion efficiency: 94% (measured at Input 16V, output 19V 2.5A)
Output Ripple: 2% (MAX) 20M-bandwidth
Operating Temperature: Industrial (-40c to 85c) (ambient temperature exceeds 40c, lower power use, or to enhance heat dissipation)
Full load temperature rise: 45c
No-load current: 25mA typical
Voltage regulation: 0.5%
Dynamic response speed: 5% 200uS
Short circuit protection: None (Please Install fuses and protection circuits at Input port.)
Input Reverse Polarity Protection: None (Please Series diode at the input port.)Some Applications:
1. DIY an output adjustable vehicle power supply, connect the 12V input, and output could be 14-35V(adjustable freely), However, the output voltage can not be less than the input voltage.
2. Car laptop power supply: connected to 12V power supply, output voltage regulation as your notebook need.
 

Electric Spider Robot kit DIY Educational Intelligence Development Assembles Kids Children Puzzle Action Kits
Features:
Suitable for Ages 10
Spider Robot insect intelligence DIY electrical 
This is a high simulation DIY intelligent spider robot, spiders, eight legs intersect to accurately reproduce the spider crawling movements. Using two different assembly methods can be assembled with different pace and gait spider robots. 
Educational Development: assembling the learning process through immense interest , you can really feel the joy of feeling constantly conquest and accomplishment. 
Can greatly improve the limits of creative thinking ability, and tap their potential , develop hand- eye brain binding capacity .
Package included:
1 x Spider Robot  kit

Description:
This is a collection of emission and reception in one photoelectric sensor.
Detection distance can be adjusted according to requirements.
The sensor has a detection range, interference by visible light small, easy to assemble, easy to use and so on.
Can be widely used in robot obstacle avoidance, assembly line and many other automated products.
Photoelectric sensor (photoelectric switch) NPN normally open.
Applications:
1. Production line automatic counting equipment
2. Multi-function reminder
3. Go maze robot
4. Kitchen automation system
5. Security anti-theft system
Specifications:
Photoelectric switch E18 technical parameters:
1. The output current DC / SCR / Relay Control output: 100mA / 5V power supply
2. Current consumption DC <25mA
3. Response time <2ms
4. Pointing angle: ≤ 15 °, the effective distance 3-80CM adjustable
5. Testing objects: transparent or opaque body
6. The working environment temperature: -25 ° ~ 55 °
7. The standard test objects: below the sun 10000LX incandescent 3000LX following
8. Shell material: Plastic
Electrical Characteristics:
U: 5V DC
I: 100mA
Sn: 3-80cm/1.18-31.5"
Size: 4.8x2.2cm/1.89x0.87"
Lead length: 16cm/6.3"
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 E18-D80NK Infrared Photoelectric Switch

 

The SHT3x series of temperature and humidity sensors are available in two versions: the SHT30 low cost version and the SHT31 standard version. The SHT3x family combines multiple functions and interfaces with a friendly wide operating voltage range (2.4 to 5.5V). Compared to previous generation sensors, the SHT3x series is smarter, more reliable and more accurate. It is more functional, has higher signal processing capabilities, and can read temperature and humidity values through different pins.
In addition, the launch of this version has further expanded the SHT3x family of products. The use of a film-type protective cover also extends the range of applications. It is IP67 rated for water and dust protection than PTFE film, so it can be used in harsh environments where water and dust can affect sensor accuracy and performance.
Features:
1. High reliability and long stability
2. Technically reliable
3. Suitable for high volume applications
4. High signal processing capability
5. Low signal noise
Product parameters:
1. Output: I2C, voltage output
2. Power supply voltage: 2.4 to 5.5V
3.RH working range: 0-99.99% RH
4. Operating temperature range: -40° to 125°C (-40° to 257°F)
5.RH response time: 8 seconds (tau63% )

Features
Supports Gravity 3-Pin interface
Analog output
Applications
Garden plants
Moisture detection
Intelligent agriculture
Specification
Operating Voltage: 3.3 ~ 5.5 VDC
Output Voltage: 0 ~ 3.0VDC
Interface: PH2.0-3P
Dimension: 98mm * 23mm (3.86in x 0.905in)
Weight: 15g

TB67S109AFTG  IC

SG5010 3KG 5KG High Torque Servos
Specification: -Color: Black -Connector wire length: 28.3cm -Operating speed (4.8V no load): 0.14sec/60 degrees -Operating speed (6.0V no load): 0.11sec/60 degrees -Stall torque (4.8V): (8kg/cm) (110oz/in.) -Stall torque (6.0V): (11kg/cm) (156oz/in.) -Temperature range: -30 to 60 degree -Dead band width: 4usec -Operation Voltage: 3.5-8.4V -Item weight: 55g -Coreless motor. -Less noise, light weight. -Used for model airplane accessories. -Stable performance and shock proof. -Used for all remote control applications mainly R/C cars boats planes and as tail servos for helicopter.

Optimized layout and reduced size, improved on the basis of official circuit, stable and reliable work, professionally designed wiring, no background noise, no humming, real and solid materials! 1.6mm military-grade PCB board, 1% precision resistor, brand new original ST (Fairchild) TDA2003 power amplifier chip, output coupling uses 2200UF high-frequency capacitors, excellent performance, full magnification, larger than TDA2030A power amplifier board, no need to install before It's also easy to get loud volume, with reverse power supply protection, and it won't burn anything if the power supply is reversed.
Power supply voltage: DC 8V-18V (with power supply reverse connection protection!)
Output power: 10W (up to 12W)
Speaker impedance: 1.6Ω-8Ω
Total harmonic distortion: <0.15%
Signal-to-noise ratio: 80dB
Heat generation: DC12V power supply, 1 coin of 1 yuan as heat sink, use TO-220 silicone sheet for heat conduction, computer as audio source, monophonic work, the volume is slightly noisy in a 16 square meter room, continuous work for 4 hours, only touch the coin by hand warm.
Heat sink: The requirements for the heat sink are not high, the metal chassis can be used for heat dissipation, and the thin iron sheet can be used for heat dissipation if the conditions are insufficient!
PCB size: 36*20mm