Kereskedelmi, irodai és ipari

Features:
As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project. 
Specification:
I2C Address: 0x27
Supply voltage: 5V
the backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
Compatible for 1602 LCD

Description:
1. Support the full range of STM32 SWD interface debugging, simple interface (including power supply), 4 line speed, stable work; Interface definition shell directly address! Don\'t need to read instructions!
2, support all series STM8 SWIM download debugging (common development environment such as IAR, STVD etc.) are supported. Support the software version is as follows:
ST - LINK Utility 2.0 and above
STVD 2 and above
STVP 3.2.3 and above
IAR EWARM V6.20 and above
IAR EWSTM8 V1.30 and above
KEIL RVMDK V4.21 and above
3. Support the firmware upgrade automatically, to ensure that the ST company product support. When they leave the firmware has been upgraded to the latest V2. The J17. S4.
4. Increase the 5 v power output, the output it can protect the I/O port, not afraid of error cause damage of ST - LINK V2!
5. Easy interface to use pure copper plating 2.54 spacing horn, with 20 cm dupont line, can deal with different target board line sequence, flexible connection;
6. Use U disk aluminum alloy shell to protect the mainboard, convenient to carry, not afraid of static electricity, not afraid of tumbling.
Package included:
1 xST-Link V2 STM8 STM32 Emulator / Download / Programmer
1 x dupont cable

100% Brand new and high quality!
Supports Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
Supports 8 independent sockets simultaneously
Supports Power down mode
Supports Wake on LAN over UDP
Supports High Speed Serial Peripheral Interfac(SPI MODE 0, 3)
Internal 32Kbytes Memory for TX/RX Buffers
10BaseT/100BaseTX Ethernet PHY embedded
Supports Auto Negotiation (Full and half duplex, 10 and 100-based )
Not supports IP Fragmentation
3.3V operation with 5V I/O signal tolerance
LED outputs (Full/Half duplex, Link, Speed, Active)
48 Pin LQFP Lead-Free Package (7x7mm, 0.5mm pitch)
Specifications:
Chip type: W5500
Supports both 3.3V & 5V.
Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
10BaseT/100BaseTX Ethernet PHY embedded
Supports automatic response (full duplex / half duplex mode)
Supports 8 independent sockets simultaneously
Internal 32Kbytes Memory for Tx/Rx Buffers
Power off mode: support
Network wake: support
SPI interface (SPI MODE 0, 3),convenient connection with MCU
Size: 55mm x 28mm

R5 is the gain adjustment resistor, the resistance value can be 4.7k-100k (the plug-in pad is reserved next to the chip resistor, if there is no chip resistor or the welding technology is not good, you can use the plug-in resistor.), the larger the resistance , The higher the gain.
Basic parameters:
Working voltage: DC 3v-6v
Board size: 16mm*15mm
Default gain: 40db (you can also adjust the gain as needed, just change the resistance of R5)

Product introduction:
1. On-board ADXL345 digital output (supporting I2C/SPI), low-power, compact acceleration sensor; 
2. Supporting 5V/3.3V voltage input, board RT9161 power supply chip, lower voltage drop than 1117, faster load corresponding speed, very suitable for high noise power supply environment;
3. The commonly used pins have been drawn out. The pins are standard 100mil (2.54mm), which is convenient for lattice plate.
4, PCB size: 28(mm) x 14(mm)

The single-band 80m-10m end-fed half-wave linear antenna provides the antenna. It is designed as a highly portable wired antenna and can be easily set as an inverted V, horizontal, inclined or vertical radiator (in the case of higher frequencies). Your feeder line is essentially balanced, so there is no need for a separate feeder line. The high-impedance half-wave line is matched with your 50 ohm feed point through an integrated impedance matching toroidal transformer, and the rated power is 10 watts. Use a high-voltage capacitor on the transformer primary with a specific radiator length to further expand and reduce SWR within the range of 80m-10m. It is designed to be used without a tuner, and after optimizing the driven element, the SWR of any part of the frequency band is ≤ 1.2.

1. Impedance: 50 ohms
2.Weight: 35g
3.Size: 100*71mm

 JY-MCU V1.2pro Bluetooth serial backplane ,For HC05 HC06 HC07 BC04 (HC-05 HC-06 HC-07) Automation Kits

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you'll have it running in under 10 minutes! Works best with any classic (UNO/Duemilanove/Diecimila). This shield does NOT work with the Mega but its going to be half the speed of the Uno-type boards because of the way the Mega rearranges all the pins (there is no way to get around this!) This shield is not Leonardo-compatible
Description:
Spice up your project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (2.4" diagonal) bright (4 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 pixels with individual pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.
Technical Details:
2.4" diagonal LCD TFT display
240x320 resolution, 18-bit (262,000) color
spfd5408 controller with built in video RAM buffer
8 bit digital interface, plus 4 control lines
Uses digital pins 5-13 and analog 0-3. That means you can use digital pins 2, 3 and analog 4 and 5. Pin 12 is available if not using the microSD
Works with any '328 or Mega (Leonardo not supported yet)
5V compatible! Use with 3.3V or 5V logic
Onboard 3.3V 300mA LDO regulator
4 white LED backlight. On by default but you can connect the transistor to a digital pin for backlight control
4-wire resistive touch screen

Technical Parameters:
 
Size: 56 * 21 * 11mm
Color: red, yellow  green
LED: 5mm * 3
Brightness: Normal brightness
Voltage: 5V
Input: Digital signal output
Interface: common cathode red yellow-green control

Description:
ESP32 is already integrated antenna and rf balun, power amplifier, low noise amplifiers, filters, and the power management module. the entire solution is the least amount of pcb area. this board is 2.4 ghz dual mode wi fi and bluetooth chips by tsmc 40nm low power technology, power and rf characteristics of best, which is safe, reliable, and scalable to a wide range of applications.
 
 
 
 
Features:
High performance - price - ratio
Small volume, easy embeded to other products
Strong function, with the support of lwip protocol, freertos
Support three modes: ap, sta and ap sta
Support for lua program, easy to develop
 
 
 
 
Size: 6.4x2.7cm/2.52x1.06inch
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:
1 x OLED  WiFi Module

The unbalanced-to-balanced board designed with BB's DRV134 chip, small-volume modular design, can be used to match differential input (balanced input) power amplifier boards, and can also be used as a dual-channel power amplifier board to change BTL output.
Requires dual power supply DC power supply, without voltage stabilized circuit, suitable for customers with stabilized power supply, small size, easy to install.
PCB board size: 33mm*32mm
Number of channels: 2 channels
Working voltage: DC dual 5v-15v (best use linear stabilized voltage power supply)

100% brand new and high quality
MPU-9250 module( 3 axis accelerator, 3 axis gyro and 3 axis magnetometer)
Chip: MPU9250; Power voltage: 3~5V
Communication mode: I2C / SPI; Gyro range: /-250, /-500, /-1000, /-2000dps
Accelerator range: /-2G, /-4G, /-8G, /-16G
Magnetometer range: /-4800uF
Pin spacing:2.54mm
Size: 15mm*25mm (approx)

0-24V Top Mosfet Button IRF520 MOS Driver Module For Arduino MCU ARM Raspberry pi
Product parameters:
Size: 33.4 * 25.6MM
Voltage: 3.3V, 5V
Port: the digital quantity level
The output load voltage: 0 to 24V
The output load current: < 5A (more than 1A need to add heat sink)
Platform: the Arduino, MCU, ARM, raspberry pie
The product features:
Using original IRF520 power MOS tube, can adjust PWM output
Can let the Arduino drive up to 24 v load, such as LED lights belt, dc motor, micro pump, solenoid valve
By PWM adjustable can realize stepless dimming LED, motor stepless speed regulation
The product instructions:
PWM signal for high level effectively
When the PWM for high level (3.3 V to 3.3 V) :
As the power supply voltage, between V and V - working indicator, work load
When the PWM is low level (0 V to 0.5 V) :
V and V - between 0, work lights out, don't work load
Package included:
100% Brand New
1PCS x  IRF520 Module

The quality is about 5 grams
The voltmeter is small in size, range DC DC0-100V, 2 line and 3 wire products, general use, break through voltage meter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulation. Equipped with three wiring, easy access to the car / storage battery car / motorcycle inside line, with reverse connection protection function, line connection will not burn. Used to monitor the battery voltage, timely grasp the state of battery voltage, can also be used for other products voltage measurement purposes. Note that the 2 line using the highest input voltage shall not exceed 30V, otherwise there is danger of burnout.
Note: three line voltage range 0-100V, can also be used for second-line, but the voltage should be within 40V
technical parameter
2 line working voltage: 4.0~40V (with reverse connection protection function)
2 wire detection voltage: 0.0~40V
3 line working voltage: 4.0~40V (with reverse connection protection function)
3 wire detection voltage: 0.0~100V
Operating current: <20mA
Display: 0.28, "LED", red/blue/green
 
Size: 30 x 11.7 x 9.2 mm (length * width * height)
Installing openings: 23 * 10 mm
The measurement rate: more than 200mS/ times
Measuring accuracy: 3 per thousand
Extreme working condition
Low operating voltage: 4.0V
Maximum operating voltage: 40V
Operating temperature: -10 ~ 65 DEG C
Working humidity: 10 ~ 80% (without gel)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct radiation
Main features:
1., product stability, high precision
2., the appearance of the standard size, easy installation
3. the power supply adopts polarity protection circuit

The quality is about 5 grams
The voltmeter is small in size, range DC DC0-100V, 2 line and 3 wire products, general use, break through voltage meter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulation. Equipped with three wiring, easy access to the car / storage battery car / motorcycle inside line, with reverse connection protection function, line connection will not burn. Used to monitor the battery voltage, timely grasp the state of battery voltage, can also be used for other products voltage measurement purposes. Note that the 2 line using the highest input voltage shall not exceed 30V, otherwise there is danger of burnout.
Note: three line voltage range 0-100V, can also be used for second-line, but the voltage should be within 40V
technical parameter
2 line working voltage: 4.0~40V (with reverse connection protection function)
2 wire detection voltage: 0.0~40V
3 line working voltage: 4.0~40V (with reverse connection protection function)
3 wire detection voltage: 0.0~100V
Operating current: <20mA
Display: 0.28, "LED", red/blue/green
 
Size: 30 x 11.7 x 9.2 mm (length * width * height)
Installing openings: 23 * 10 mm
The measurement rate: more than 200mS/ times
Measuring accuracy: 3 per thousand
Extreme working condition
Low operating voltage: 4.0V
Maximum operating voltage: 40V
Operating temperature: -10 ~ 65 DEG C
Working humidity: 10 ~ 80% (without gel)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct radiation
Main features:
1., product stability, high precision
2., the appearance of the standard size, easy installation
3. the power supply adopts polarity protection circuit

The quality is about 5 grams
The voltmeter is small in size, range DC DC0-100V, 2 line and 3 wire products, general use, break through voltage meter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulation. Equipped with three wiring, easy access to the car / storage battery car / motorcycle inside line, with reverse connection protection function, line connection will not burn. Used to monitor the battery voltage, timely grasp the state of battery voltage, can also be used for other products voltage measurement purposes. Note that the 2 line using the highest input voltage shall not exceed 30V, otherwise there is danger of burnout.
Note: three line voltage range 0-100V, can also be used for second-line, but the voltage should be within 40V
technical parameter
2 line working voltage: 4.0~40V (with reverse connection protection function)
2 wire detection voltage: 0.0~40V
3 line working voltage: 4.0~40V (with reverse connection protection function)
3 wire detection voltage: 0.0~100V
Operating current: <20mA
Display: 0.28, "LED", red/blue/green
 
Size: 30 x 11.7 x 9.2 mm (length * width * height)
Installing openings: 23 * 10 mm
The measurement rate: more than 200mS/ times
Measuring accuracy: 3 per thousand
Extreme working condition
Low operating voltage: 4.0V
Maximum operating voltage: 40V
Operating temperature: -10 ~ 65 DEG C
Working humidity: 10 ~ 80% (without gel)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct radiation
Main features:
1., product stability, high precision
2., the appearance of the standard size, easy installation
3. the power supply adopts polarity protection circuit

The quality is about 5 grams
The voltmeter is small in size, range DC DC0-100V, 2 line and 3 wire products, general use, break through voltage meter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without voltage regulation. Equipped with three wiring, easy access to the car / storage battery car / motorcycle inside line, with reverse connection protection function, line connection will not burn. Used to monitor the battery voltage, timely grasp the state of battery voltage, can also be used for other products voltage measurement purposes. Note that the 2 line using the highest input voltage shall not exceed 30V, otherwise there is danger of burnout.
Note: three line voltage range 0-100V, can also be used for second-line, but the voltage should be within 40V
technical parameter
2 line working voltage: 4.0~40V (with reverse connection protection function)
2 wire detection voltage: 0.0~40V
3 line working voltage: 4.0~40V (with reverse connection protection function)
3 wire detection voltage: 0.0~100V
Operating current: <20mA
Display: 0.28, "LED", red/blue/green
 
Size: 30 x 11.7 x 9.2 mm (length * width * height)
Installing openings: 23 * 10 mm
The measurement rate: more than 200mS/ times
Measuring accuracy: 3 per thousand
Extreme working condition
Low operating voltage: 4.0V
Maximum operating voltage: 40V
Operating temperature: -10 ~ 65 DEG C
Working humidity: 10 ~ 80% (without gel)
Working pressure: 80 ~ 106kPa
Sun exposure: no direct radiation
Main features:
1., product stability, high precision
2., the appearance of the standard size, easy installation
3. the power supply adopts polarity protection circuit

Features:
This is a brand new MCP2515 CAN bus module TJA1050 receiver SPI protocol
Compatible with Arduino based micro-controller projects.
Specifications:
Support CAN V2.0B specification, the communication speed 1Mb / S
0 to 8-byte data field
Three frames - standard, expand the frame and remote
DC5V power supply module & SPI interface protocol control
120 ohm termination resistors, Impedance matching, ensure drive capacity, long-distance data transmission against signal radiation
Module dimensions 4. 4 x 2.8 cm/1.57*1.1" (approx.)
Working Current - typ. 5mA & 1μA standby current
Working Temperature - (Industrial grade) -40°C - 85°C
Package includes:
1* MCP2515 CAN bus module TJA1050 receiver

Based on ESP-8266EX
For Arduino compatible, using For Arduino IDE to program
11 x I / O pins
1 x ADC pin (input range of 0-3.3V)
Support OTA wireless upload
Onboard 5V 1A Switching Power Supply (highest input voltage 24V)
After installing the hardware package,
the direct use For Arduino IDE development, the same operation For Arduino UNO
Product features:
1. Supporting the D1 MINI
2. The Ar-duino compatible, using Ar-duino IDE for programming
3.11 the XI/O pins
4.1 XADC pin (0-3.3 - V)
5. Support the OTA online