Electronics accessories | LK-Tronics

Pololu 70*8 mm Black plastic Wheels

darazsales — Wed, 20 Mar 2024 08:22:43 +0000

LK-Tronics
Pololu 70*8 mm Black plastic Wheels

Pololu 70*8 mm Black plastic Wheels

These black plastic wheels have silicone tires and measure 70 mm (2.75″) in diameter, and they press-fit onto the 3mm D shafts on many of our motors, Additionally, this wheel is compatible with several of our universal mounting hubs, which can serve as adapters for motors with different shafts. This product is a pair of wheels.

These wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. Two mounting holes for #4 or M3 screws make it possible to use the wheel with any of our universal mounting hubs for those screw sizes, enabling these wheels used with larger metal gear motors and stepper motors. The slots in the five spokes fit #2 or M2 screws and allow additional accessories to be mounted to the wheel such as decorations or parts of an encoder system. The included silicone tires, which feature horizontal treads for improved traction, are also available separately.

Dimensions

Size:	70 x 8 mm
Weight:	0.5 oz
Shaft diameter:	3 mm

General specifications

Color:	black

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Pololu 70*8 mm Black plastic Wheels
darazsales

RS PRO PT100 RTD Sensor, 6mm Dia, 150mm Long

lahiru Dhananjaya — Sun, 03 Mar 2024 11:12:27 +0000

LK-Tronics
RS PRO PT100 RTD Sensor, 6mm Dia, 150mm Long

RS PRO PT100 RTD Sensor, 6mm Dia, 150mm Long, 3 Wire, G1/2, Class B +450°C Max

The PRO PT100 RTD Sensor is a high-quality temperature sensor designed for accurate and reliable measurements. It features a platinum resistance element that ensures precise temperature readings with a wide operating range. The sensor is built with durable materials and is suitable for various industrial applications. With its compact design and easy installation, RTD Sensor is an excellent choice for monitoring temperature in demanding environments.

Specifications

Brand – RS Pro

Sensor Type – PT100

Probe Length – 150mm

Probe Diameter – 6mm

Minimum Temperature Sensed -50°C

Maximum Temperature Sensed +450°C

Termination Type – Connection Head

Probe Material – Stainless Steel

Process Connection – G1/2

Number Of Wires – 3

Accuracy – Class B

Country of Origin – United Kingdom

Z Card 2 page (rs-online.com)

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RS PRO PT100 RTD Sensor, 6mm Dia, 150mm Long
lahiru Dhananjaya

LC108 temperature controller 48x48mm

lahiru Dhananjaya — Sat, 10 Feb 2024 15:56:33 +0000

LK-Tronics
LC108 temperature controller 48x48mm

LC108 temperature controller 48x48mm, SSR/Relay/4-20mA/0-10V output

The LC108 temperature controller is a compact and versatile device designed to accurately monitor and control temperature in various applications. With its 48x48mm size, it can easily fit into tight spaces without compromising functionality. This temperature controller offers multiple output options including SSR, relay, 4-20mA, and 0-10V, allowing for seamless integration with different types of heating or cooling systems. Whether you need to maintain a specific temperature range in industrial processes, HVAC systems, or laboratory equipment, this provides precise and reliable temperature control. Its user-friendly interface and intuitive controls make it easy to set up and operate, ensuring hassle-free temperature management.

Brand Name: leichuangtec
Origin: Mainland China

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LC108 temperature controller 48x48mm
lahiru Dhananjaya

Ethernet Relay Board 16 32 Channel ESP32 WIFI MQTT Home Assistant Domoticz OpenHAB Digital Input Smart Switch

lahiru Dhananjaya — Sat, 10 Feb 2024 15:52:53 +0000

LK-Tronics
Ethernet Relay Board 16 32 Channel ESP32 WIFI MQTT Home Assistant Domoticz OpenHAB Digital Input Smart Switch

Ethernet Relay Board 16 32 Channel ESP32 WIFI MQTT Home Assistant Domoticz OpenHAB Digital Input Smart Switch

Communication method: Other
Camera Equipped: No
State of Assembly: Ready-to-Go
Model Number: DT-R016/DT-R032
Compatibility: Others
Brand Name: DT
Origin: Mainland China
Certification: CE
home automation system: domoticz,home assistant,openHAB,Red-Node
Interface: ethernet,wifi,rs485,CANbus,wiegand
protocol: MQTT,HTTP GET,CoAP,dingtian string,dingtian binary
Function: relay task, IP Watchdog, OTA Upgrade
Power supply: 12VDC/24VDC, 12VAC/24VAC
Chip: ESP32
RTC: RTC(optional)
case type: DIN35

Relay board function instruction as below, any questions, please contact us

ETHWiFi means support Ethernet and WIFI

ETHWiFi RS485 means support Ethernet, WIFI and RS485

ETHWiFi CAN means support Ethernet, WIFI and CAN bus

ETHWiFi RTC means support Ethernet and WIFI with RTC battery

ETHWiFi RS485 RTC means support Ethernet, WIFI and RS485 with RTC battery

ETHWiFi CAN RTC means support Ethernet, WIFI and CAN bus with RTC battery

Support Customized and develop by our company

User manual and programming manual SDK:

http://www.dingtian-tech.com/sdk/relay_sdk.zip

Notes: it is finished relay board, don’t support flash your own firmware. If you want to flash firmware, please contact us

Specification
Parameter	DT-R002	DT-R004	DT-R008	DT-R016	DT-R032
Photo
Interface	RJ45, WiFi, RS485, CAN, Wiegand(optional)
Size(Relay Board)	87*68mm	91.6*86.4mm	122*87mm	250*107mm	370*107mm
Size(DIN35 Case)	909040mm	1159040mm	1459040mm	25212343mm	37312343mm
Power Supply	12V/24VDC, 5V/24VAC
Power Adapter	12VDC/1.5A	12VDC/1.5A	12VDC/1.5A	12VDC/2A	12VDC/3A
Power Consumption	2W	3W	5W	9W	16W
Working Temperature	-20~75℃
Storage Temperature	-40~80℃
Protocol	MQTT, Modbus-RTU/TCP/UDP/ASCII, TCP, UDP, HTTP GET CGI, CoAP
Quantity Relays	2DO	4DO	8DO	16DO	32DO
Quantity Digital Input	2DI	4DI	8DI	16DI	32DI
Quantity Wiegand	1(optional)	1(optional)	0	1	1
RTC	NO	NO	NO	Optional	Optional
Home Automation	Domoticz, Home Assistant, openHAB, Red-Node
Function	IP Watchdog, Task, NTP Client, Input mutual control, OTA Upgrade
Ethernet IP	192.168.1.100
Web User/PWD	admin/admin
WiFi AP IP	192.168.7.1
WiFi AP SSID/PWD	dtrelaySN/dtpassword
WiFi STA IP	192.168.1.97

Note:

Please keep your computer ip is the same NETWORK SEGMENT as our default ip 192.168.1.100

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Ethernet Relay Board 16 32 Channel ESP32 WIFI MQTT Home Assistant Domoticz OpenHAB Digital Input Smart Switch
lahiru Dhananjaya

underwater Thruster 7Kg(15.4LB) ESC For Boat ROV Paddle Boar

lahiru Dhananjaya — Sat, 10 Feb 2024 15:25:02 +0000

LK-Tronics
underwater Thruster 7Kg(15.4LB) ESC For Boat ROV Paddle Boar

Underwater Thruster 7Kg(15.4LB) Thrust Propeller Propulsion With Bi-Directional ESC For Boat ROV Paddle Boar ApisQueen U5 12-24V

The ESC is specially developed for underwater thrusters and has the following features:

1. The proprietary firmware of ApisQueen thrusters is specially designed to improve the superior performance of the thrusters. The motor PWM generated by the hardware can improve the smooth throttle response and reduce the noise.

2. ApisQueen’s exclusive firmware will generate regenerative braking, making it more efficient. When the throttle changes from large to small, the thruster decelerates and responds more quickly, and the stability and flexibility of the thruster are significantly enhanced.

3. The ESC automatically detects the throttle signal when it is powered on, and supports 1-2ms pulse width input, Oneshot and Multishot in normal PWM throttle mode.

4. Support Dshot150, Dshot300 and Dshot600. Dshot is a digital signal with strong anti-interference ability, and the ESC does not need to calibrate the throttle stroke.

5. The signal wire is a twisted pair of silicone wires, which increases its service life and effectively reduces the interference caused by the signal transmission in the copper wire, making the thruster more stable.

For Vehicle Type: boAts
RC Parts & Accs: Motors
Material: Composite Material
Brand Name: ApisQueen
Origin: Mainland China
Recommend Age: 14 y
Use: Vehicles & Remote Control Toys
KV: 350
Maximum thrust: 6±1Kg(One Thruster thrust)
Power: 800W
Voltage: 12-24V
Length of one thruster line: 1.5 m
Plug: 4.0mm
ESC: 100A/XT60/4.0

The length of the thruster cable can be customized, the default length is 80cm, if you need a longer cable, please contact ApisQueen customer service, the extension cable will incur additional charges.

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underwater Thruster 7Kg(15.4LB) ESC For Boat ROV Paddle Boar
lahiru Dhananjaya

4K Conference PTZ Camera 12/20X 60fps Live Streaming L

lahiru Dhananjaya — Tue, 06 Feb 2024 16:57:43 +0000

LK-Tronics
4K Conference PTZ Camera 12/20X 60fps Live Streaming L

4K Conference PTZ Camera 12/20X 60fps Live Streaming LAN USB3.0 HDMI for Business Meeting Church Broadcast Youtube

Lens Interchangeable: No
Effective MegaPixel: 8MP
Support Remote Control: Yes
Vertical Shooting: Yes
App Setting: No
Panning Angle: 355°
Max Controllable Speed: 80°/s
Special Feature: None
Focal Length: 12/20X
Weight: 2500g
Memory Card Type: SD
Communication: WIRED
Video Resolution: 4K
Sensor Size (inches): 1/2.3inches
Optical Zoom: > 6x
of Axes: 1-Axis
Model Number: HK40R
Brand Name: HCSTVCON
Origin: Mainland China

HK40R Features：

69.4°Wide Angle+12X optical zoom:

Apply high quality 8.5 megapixels 4K ultra wide-angle lens,12x optical zoom.

4K Ultra HD Resolution:

Apply SONY 1/2.8’’ STARVIS CMOS sensor,

8.5 Megapixels can reach 4K(3840×2160) high resolution with frame rate up to 4K 30fps.

Abundant Outputs: Multiple Outputs:

Support HDMI/USB/LAN/IP 4K video output. HDMI + USB3.0 + IP (POE optional) 4K video output

Support mainstream streaming media protocol: Multiple Network Protocols:

RTMP/RTSP/RTMPS/ONVIF/SRT(optional). Support RTSP, RTMP, RTMPS, ONVIF, SRT(optional), TCP/IP, HTTP, PELCO P/D protocol etc

Product Name：HCSTVCON-HD40RK video conference camera USB conference cameras 4K Video Conference Camera Ultra Wide Angle with Video HDMI PTZ Conference Camera

Image sensor：SONY 1/2.8″ Progressive CMOS

Effective Pixels：8.50 Megapixels

Resolution：4K/30, 4K/25, 1080p60/50, 1080p30/25, 1080i60/50, 720p60/50

Lens：12X optical zoom; f=3.9mm(wide)~46.8mm(tele)

Horizontal View Angle：70.8°(W)-6.5°(T)

Video Output HD：HDMI, USB3.0, IP

Inversion:Support

Image freezing:Support

POE power supply:802.3at(Optional)

Streaming Protocol:RTMP, RTSP, RTMPS, ONVIF, SRT

Size:(L)181X(W)181X(H)176mm

Product Function Display：

Product Appearance :

Product Parameter：

Product Real Shot ：

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4K Conference PTZ Camera 12/20X 60fps Live Streaming L
lahiru Dhananjaya

3.5 inch TFT LCD Display Kit 400×240 for Arduino

lahiru Dhananjaya — Tue, 06 Feb 2024 14:08:31 +0000

LK-Tronics
3.5 inch TFT LCD Display Kit 400×240 for Arduino

3.5 inch TFT LCD Display Kit 400×240 Touch Screen Breakout Easy-plug ATmega328P Air Board MicroSD Module Cable for Arduino

Introducing our TFT LCD Display, a cutting-edge technology that offers exceptional visual clarity and vibrant colors. This display is designed to provide a seamless user experience with its high resolution and wide viewing angles. Whether you are using it for gaming, multimedia, or professional applications, our TFT LCD Display delivers sharp images and smooth motion. With its slim design and energy-efficient features, it is perfect for various devices such as smartphones, tablets, and automotive displays. Upgrade your visual experience with our TFT LCD Display today.

Color: RED
Package: Yes
Model Number: 3.5 inch TFT LCD Kit
Type: Industrial Computer Accessories
Brand Name: OPEN-SMART
Origin: Mainland China
Certification: NONE
Products Status: Stock

Features

Note: If you want to place the bulk order that the stock is not enough, please contact with us.

No additional modules, this kit can achieve rich projects such as character display, image reading and display, touch sketchpad.

The kit includes a 3.5 inch TFT touch screen breakout board, and the secondary development is easy.

The kit includes an Easy-plug development board. And the program, expansion Shields, IDE is compatible for Arduino.

There’s a switch to choose the system supply voltage, 3.3V or 5V, which is very useful if you want to set the system to 3.3V to save power.

For example, you want to connect directly for 3.3V LCD / ESP8266 wifi-compatibke / BME280 barometric sensor module for the Board without level conversion module, you can set the board to be 3.3V level.

With GPRS module, you can design your DIY phone.

With NFC reader module, you can create access control systems with the photos show.

With voltage and current sensor, you can make oscilloscope.

3.5 inch TFT LCD:

– Can use it directly to display characters, graphics and BMP format images. And touch controlling is available;

– Touch screen type: resistive touchscreen.

– Touch Pen: length is 9cm;

– Resolution: 400 x 240, 16-bit (262,000) color

– Display size: 3.5 inch;

– Operating voltage: 3.3V;

– Logic level: 3.3V;

The Air Board:

– Operating current: the maximum is 500mA

– I2C female header: can connect to DS1307 RTC / LM75A temperature sensor / I2C 1602 LCD

– GPIO(D2 and D3) female header: can connect to Serial MP3 Player / Serial Bluetooth-compatible module

– SPI female header: can connect to MicroSD card Adapter module

– TFT LCD female header: can connect to OPEN-SMART TFT LCD breakout module(2.0”, 2.2”, 2.8”, 3.5”)

– Very suitable for digital photo frame, oscilloscope, function generator, detection system monitor.

3.5inch TFT LCD Dimensions and View area:

Photos

Part List(Schematics and program can be sent , Please contact us)

1 x 3.5 inch TFT LCD Display

1 x Board

1 x USB cable (50cm)

1 x Micro SD card (128MB)

1 x Touch pen

1 x Micro SD Card Adapter module

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3.5 inch TFT LCD Display Kit 400×240 for Arduino
lahiru Dhananjaya

Dot matrix screen, SPI interface for Lcd12864 12864-06D, 12864

lahiru Dhananjaya — Tue, 06 Feb 2024 06:27:02 +0000

LK-Tronics
Dot matrix screen, SPI interface for Lcd12864 12864-06D, 12864

Lcd12864 12864-06D, 12864, LCD module, COG, with Chinese font, dot matrix screen, SPI interface

Display Mode: 128*64
Resolution: 128*64
is_customized: Yes
Model Number: 12864-06D
Type: Standard
Brand Name: Estardyn
Origin: Mainland China

product information

Name: LCD module
Model: GMG12864-06D
Dotmatrix: 12864
Dimensions: 61.8 * 45.8 * 6.8
Window size: 58 * 28
Driver IC: ST7565R
IC: 20L16S1Y Simplified Chinese
Temperature: -20 degrees +70 degrees
Voltage: 3.3V
Interface mode: SPI interface

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Dot matrix screen, SPI interface for Lcd12864 12864-06D, 12864
lahiru Dhananjaya

HMI Intelligent LCD Resistive Touch Display Module

lahiru Dhananjaya — Wed, 31 Jan 2024 03:16:25 +0000

LK-Tronics
HMI Intelligent LCD Resistive Touch Display Module

HMI Intelligent LCD Resistive Touch Display Module Nextion NX3224T024/ NX3224T028 – 2.4” /2.8”High RGB Colors Basic Series

Model Number: NX3224T024
Brand Name: NEXTION
Origin: Mainland China
Model: NX3224T028
Touch Panel: RTP
MCU: 48 MHz
Flash: 4 MB
SRAM: 3584 Byte
Input Power: DC 5V 500mA
USART Port: XH2.54 4P
Feature1: lCD Touch Display
Feature2: HMI Touch Display Module
Feature3: Touch Display

Nextion is a seamless Human Machine Interface (HMI) solution that provides a control and visualization interface between a human and a process, machine, application or appliance. Nextion is mainly applied to Internet of thing (IoT) or consumer electronics field. It is the best solution to replace the traditional LCD and LED Nixie tube.

Nextion includes a hardware part (a series of TFT boards) and a software part (the Nextion editor).The Nextion TFT board uses only one serial port to communicate. It lets users avoid the hassle of wiring. We noticed that most engineers spend much time in application development but get unsatisfactory results. As a solution to this situation, Nextion editor has mass components such as button, text, progress bar, slider, instrument panel etc. to enrich the interface design. Furthermore, the drag-and-drop function ensures that users spend less time in programming, which will reduce 99% of their development workloads. With the help of this WYSIWYG editor, designing a GUI is a piece of cake.

It’s easy to adapt Nextion family HMI to existing projects. Users just need to provide it a UART.

HMI Intelligent LCD NX2432T024/NX3224T028 is a powerful 2.4”/2.8” HMI, which is member of Nextion family. Features include: a TFT 320 x 240 resistive touch screen display, 4M Flash, 2K Byte RAM, 65k colors.

Package include: a Basic Nextion display, a wire, a power supply test board

Note: there’s a small power supply test board and a wire for you to test if the electricity supply is enough or not. Please see below image how to use it.

Features

320 x 240 Resolution

RGB 65K true to life colours

TFT screen with integrated resistive touch panel

4 pin TTL serial interface

4M Flash memory for User Application Code and Data

On board micro-SD card slot for firmware upgradation

Visual Area: 57.6mm(L)×43.2mm(W)

Adjustable Brightness: 0~180 nit, the interval of adjustment is 1%

5V65mA power consumption

Compatible with Raspberry Pi A+, B+, Pi 2, Pi 3, Arduino.

Certificates: CE/EMC, RoHS (certificates)

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HMI Intelligent LCD Resistive Touch Display Module
lahiru Dhananjaya

Remido Optical Encoder E6B2-CWZ6C 600 P/R 5-24v

darazsales — Mon, 29 Jan 2024 11:26:06 +0000

LK-Tronics
Remido Optical Encoder E6B2-CWZ6C 600 P/R 5-24v

Remido Optical Encoder E6B2-CWZ6C 600 P/R 5-24v Rotary Incremental

Categories		Incremental Shaft model
Diameter		40 mm dia.
Power supply voltage		5 to 24 VDC (-5% to +15%) Ripple (p-p) 5% max.
Current consumption		80 mA max.
Resolution		600 P/R
Inrush current		Approx. 9 A (0.3 ms)
Output phases		A, B, and Z
Control output	Output type	NPN open collector
	Load power supply voltage	30 VDC max.
	Sink current	35 mA max.
	Residual voltage	0.4 V max. (at sink current 35 mA)
Starting positional point		Equipped
Max. response frequency		100 kHz
The phase difference in output		90±45 ° between A and B (1/4 T ± 1/8 T)
Rise and fall times of output		1 µs max. (Cable length: 2 m max., output voltage: 5 V, load resistance: 1 kΩ)
Starting torque		0.98 mN.m max.
Moment of inertia		3 x 10^-7 kg.m² max.
Shaft loading		Radial: 30 N Thrust: 20 N
Max. permissible rotation		6000 r/min
Protective circuit		Output short-cut protection Power supply reverse polarity protection
Ambient temperature		Operating: -10 to 70 ℃ (with no icing) Storage: -25 to 85 ℃ (with no icing)
Ambient humidity		Operating: 35 to 85% RH (with no condensation) Storage: 35 to 85% RH (with no condensation)
Insulation resistance		Between charged parts and the case: 20 MΩ or higher (500 VDC megger)
Dielectric strength		Between charged parts and the case: 500 VAC 50/60 Hz 1 min
Vibration resistance		Destruction: 10 to 500 Hz, 2-mm or 150 m/s² double amplitude for 11 min 3 times each in X, Y, and Z directions
Shock resistance		Destruction: 1000 m/s² for 3 times each in X, Y, and Z directions
Degree of protection		IEC: IP50
Connection method		Pre-wired models (Cable length: 2 m)
Material		Case: ABS Main Unit: Aluminum Shaft: SUS420J2
Accessories		Instruction manual, Couplings, Hex-head spanner

Images

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Remido Optical Encoder E6B2-CWZ6C 600 P/R 5-24v
darazsales