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Original thread nozzle throat for PTFE tube inside Hotend Assembly heat sink. Fits a variety of 3D printers
Specifications:
With Teflon
Package includes:
1 x M6X25 Extruder Accessory 1.75mm Thread Nozzle Throat
Why not protect your Micro: bit development board with these adorable silicone cases? Now we have the cute silicone case that can protect your Micro: bit from external wear. It also can prevent your board from wires that might short it out while still allows full access to the board. It is easy to use, just slide your boards into the case and it envelops and protects the entire electronic components. Sliding in the white terminals protector to prevent the terminals from shorting.
The case has slots to access the USB port, buttons and JST connectors. It’s especially designed to allow the on-board LED matrix to be viewed when lighted up. It’s aimed to create a more interesting programming environment for children, getting rid of the past boring programming life.
Features:
Protect your micro:bit
Specifications:
- Product Size: 56mm x 45mm
- Thickness: 12mm
Note:
Micro:bit control board is not included
Package Inlcudes:
1 x Micro:bit Silicone Protective case
Why not protect your Micro: bit development board with these adorable silicone cases? Now we have the cute silicone case that can protect your Micro: bit from external wear. It also can prevent your board from wires that might short it out while still allows full access to the board. It is easy to use, just slide your boards into the case and it envelops and protects the entire electronic components. Sliding in the white terminals protector to prevent the terminals from shorting.
The case has slots to access the USB port, buttons and JST connectors. It’s especially designed to allow the on-board LED matrix to be viewed when lighted up. It’s aimed to create a more interesting programming environment for children, getting rid of the past boring programming life.
Features:
Protect your micro:bit
Specifications:
- Product Size: 56mm x 45mm
- Thickness: 12mm
Note:
Micro:bit control board is not included
Package Inlcudes:
1 x Micro:bit Silicone Protective case
This module has a component that is able to detect the vibrations. Depending on the strength of the vibrations, using the built-in comparator on its outputs gives either digital (HIGH / LOW) or analog (0V-5V) signal.
Features:
When the VCC and GND are connected, the power indicator will light up.
Put the module on the desktop, adjust the blue potentiometer on the board until the on-board switch indicator lights up, and then slightly turn back the potentiometer untill the indicator light turns off. Hit the desktop with your hand so the vibration shocks the sensor, the indicator light will go on. Vibration stops, indicator light will turn off.
Raspberry Pi Python example
Small red security alarm signal emergency warning strobe light excluding the mounting bracket. It can be used for anti-burglary alarm signal indication, entrance and construction site warning lights and other similar applications.
Specification:
Rated voltage: 12V DC
Rated current: 120mA
Strobe rate: 90s / minute
Diameter: 7.2cm
Height: 4cm
Lamp cover color: red
Features:
Led strobe flashing light
Suitable for security, status etc...
Also ideal for construction site as a warning light
Note:
This product only has a flashing light, no sound.
Package includes:
1 x Alarm Signal Lamp
2 x Bases
4 x Screws
LEARN ABOUT ELECTRICITY – Provide a fun learning experience for inquisitive minds
Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH.
Description:
The LiitoKala Lii-402 Smart Charger for Lithium Ion and NiMH batteries is the perfect bench mate to keep your radios, robotics and flashlights running at peak efficiency. In a sea of endless chargers for sale, we have found one that will meet and exceed the needs of many consumers.
Specifications:
Product name: Liitokala Lii-402 Micro USB 4Slots Battery Charger
Input : Micro USB DC 5V/2A
Output: 1.42V
4.2V±0.05V
3.65±0.05V
4.35±0.05V
Current: 2000mA*1 1000mA*2 700mA*3 500mA*4
Constant voltage, cut-off current: less than 100mAh
Standby current: less than 15mAh
Compatible with:
Ni-MH/Cd
AA/AAA/A/SC Sizes
3.7V Li-ion battery including
26650,22650,26500,18650,18490,17670,17500,16340,14500,10440
Size: 112mm x 90mm x 30mm (L x W x H)
Weight: 150 grams (incl. micro cable)
USB Output function
1. 0pen-circuit voltage of USB output : 4.9-5.3V; and the 4th slot is fixed for the USB discharge power source
2. Output current: 1000mAh
3. Open circuit current: <1mAh
4. The corresponding voltage is 4.75-5.25V under 1000mAh current
5. Cut-off voltage for discharge protection: 3.0±0.1V
You will need a power supply for this charger
1 x Liitokala Lii-402 Micro USB 4Slots Battery Charger
1 x USB Cable
The TB6560 stepper motor control circuit is the most commonly used current circuit, which can control a 2 phase motor (10 – 35VDC) with a maximum output of 3A.
Specifications:
Size: 75mm x 50mm x 35mm (L x W x H)
Rated maximum output: ± 3A, peak 3.5A
Working voltage: DC 10V-35V
Recommended to use a switching power supply: DC24V power supply
Subdivision: whole step, half-step, step 1/8, 1/16 step, a maximum of 16 Subdivisions.
Feature:
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.
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 a step.
4. Thick teeth heat sink for good heat dissipation.
Package includes:
1 x TB6560 1 axis driver board
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
Examples of Uses:
How Much Power Does my Fridge Use - with the Battery connected to the SOURCE side and Car Fridge (or other accessory) connected to the LOAD side. The Watt Meter shows the current into the Fridge, voltage and power at the battery and accumulates the Ah and Wh while the fridge is running.
How much charge is going into my battery - With a battery charger (or alternator) connected to the SOURCE side and the aux battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the battery and accumulates the charge (Ah) and energy (Wh) into the battery.
What is the output of my solar panel - With a solar panel connected to the SOURCE side and solar regulator connected to the LOAD side, the Watt Meter shows the charging current into the regulator, the voltage and charging power at the solar panel and accumulates the charge (Ah) and energy (Wh) into the regulator.
How much charge is my solar panel putting into my battery - Now with a solar regulator connected to the SOURCE side and battery connected to the LOAD side, the Watt Meter shows the charging current into the battery, the voltage and charging power at the regulator and accumulates the charge (Ah) and energy (Wh) into the battery.
Specification:
Item Name | Watt Meter and Power Analyzer |
Item NO. | FT08 |
Operation Voltage | 4.8V-60V |
Measures Range | 0-130A, resolution 0.01A; 0-60V, resolution 0.01v; 0-6554W, resolution 0.1w; 0-65Ah,resolution 0.001An; 0-6441Wh,resolution 0.1Wh; |
LCD | 16 x 2, backlit LCD display |
Size | 85 mm x 43 mm x 25 mm (3.35 in x 1.69 in x 0.98 in) |
Weight | 82g |
Color | Black |
English Manual please click here
Package Includes:
1x 130A High Precision Battery Watt Meter And Power Analyzer
4. This is an entry level measuring solution. Do not expect 100% accuracy.
Product Type | PZEM-022 |
Accuracy | 1.0 grade |
Display Size | 51mm x 30mm |
Product Size | 89.6mm x 49.6mm x 24.3mm |
Weight | 150g(with split CT) |
Test Range | 1. Voltage: 80~260V 5. Frequency: 45~65Hz 6. Power factor: 0~1PF |
Function | 1. Electrical parameter measurement function (voltage, current, active power, energy, frequency, power factor) 2. Overload alarm function (over power alarm threshold, backlight and power flashing to alarm). 3. Power alarm threshold preset function (can set power alarm threshold). 4. The energy can be reset use the key. 5. Store data when power off. 6. Large-screen LCD 7. Backlight function. |

Package includes:
1 x CT
FAQ
Why is the test data wrong? Voltage * Current = Power, But power is less than the actual test voltage * Current, Why is that?
Answer: There are three types of power:
Active Power (P represents / unit W)
Reactive power (Q represents / unit Var)
Apparent power (S represents / unit VA)
Here we only talk about Active Power, for others, please google it:
P = U * I * cosφ, cosφ it represents the power factor, purely resistive load (Such as incandescent, heater, etc.) the power factor is generally close to 1,Between the inductive and capacitive load load power factor 0-1. So purely resistive load test time, P is substantially equal to or close to U * I. When Inductive or capacitive load test (Such as refrigerators, washing machines, televisions, computers, etc.) P<U*I, As for how much to keep the power factor related to the specific, Different for each appliance power factor.
The great advantage to owning a wireless home weather station is that the sensor can be simply mounted in virtually any outdoor location and the display can be conveniently located anywhere in the home.
Know how much rain you got overnight with this digital wireless rain station
Specifications:
1).Outdoor wireless sensor (range up to 100 meter)
2) Detail display of rainfall data in 1hour, 24hour, week, month
and total since last reset(user selectable in inch or mm)
3) Indoor and outdoor temperature (°F to °C)
4) Time and date with manual setting option
5) 12 /24 hour time mode
6) Calendar
7) Time zone setting
9)Time alarm
9) Free standing
1) Rainfall display range: 0 to 19,999mm
2) Outdoor temperature range: -40 ~ 65°C (-40°F to 149°F)
3) Indoor temperature range: -9.9 ~ 60°C (-15.8°F to 176°F)
4) Temperature accuracy: ±1.0°C5) Power requirements:
a) Receiver: 2 x "AA" alkaline batteries (not included)
b) Rain gauge: 2 x "AAA" alkaline batteries (not included)
5)Transmission range: up to 100meters( 330feet)
6) Transmission frequency: 433MHz
Package includes:
1 x Rain Gauge
1 x Receiver
1 x User Manual
2 x Screws
Description:
Professional Weather Station with PC interface at 433Hz. Featuring touch panel and stylus. The outdoor transmitter is powered by solar
Note:
Commonly the radio communication between receiver and transmitter in the open field can reach a distance of up to 330 feet providing that there are no interfering obstacles such as buildings, trees, vehicles, high voltage lines, etc.
Radio interferences such as PC screens, radios or TV sets can, in bad cases, entirely cut off radio communication. Please take this into consideration when choosing standing or mounting locations.
Features:
1) Touch screen panel (touch by stylus)
2) USB port for easy connection to your PC
3) All the weather data from the base station and weather history data with user adjustable measuring intervals can be recorded and uploaded to your PC
4) Free PC software for transfer weather data to PC (EasyWeather)(EasyWeatherPlus is not compatible)
5) Rainfall data (inches or millimeters): 1-hour, 24-hour,one week, one month and total since last reset.
6) Wind chill and Dew point temperature display ( °F or °C)
7)Records min. and max. wind chill and Dew point with time and date stamp
8) Wind speed (mph, m/s, km/h, knots, Beaufort)
9) Wind direction display with LCD compass
10) Weather forecast tendency arrow
11) Weather alarm modes for: a) Temperature b) Humidity c) Wind chill d) Dew point e) Rainfall f) Wind speed g) Air pressure h) Storm warning
12) Forecast icons based on changing barometric pressure
13) Barometric pressure (inHg or hPa) with 0.1 hPa resolution
14) Wireless outdoor and indoor humidity (% RH)
15) Records min. and max. humidity with time and date stamp
16) Wireless outdoor and indoor temperature (°F or °C)
17) Records min. and max. temperature with time and date stamp
18) 12 or 24-hour time display
19) Perpetual calendar
20) Time zone setting
21) Time alarm
22) High light LED backlight
23) Wall hanging or free standing
24) Synchronized instant reception
25) Low power consumption (over 2 years battery life for transmitter)
26) RCC function (not included on this model)
27) solar powered transmitter (outdoor unit)
Specifications:
1) Outdoor temperature range: -40.0 °C to 65.0 °C (-40 °F to 149 °F)
2) Indoor temperature range: 0 °C to 50.0 °C (32 °F to 122 °F)
3) Humidity range: 10% to 99% (1% resolution)
4) Rain volume display: 0 - 9999mm (show OFL if outside range)
Resolution : 0.3mm (if rain volume < 1000mm) ,1mm (if rain volume > 1000mm)
5) Wind speed: 0~100mph (show OFL if outside range)
6) Measuring range air pressure: 27.13inHg - 31.89inHgResolution : 0.01inHg
7) Alarm duration : 120 sec
8) Transmission range up to 100m (330 feet)
9) Power consumption:
a) Receiver: 2 x AA alkaline batteries (not included) b) Sensor: 2 x AA rechargeable batteries (not included)
10) Transmission frequency: 433MHz
1) Receiver
2) Four outdoor sensors:
- thermo hydro transmitter,
- wind speed sensor,
- wind direction sensor and
- rain sensor
Resources :
User Manual : MS Professional Weather Station
Easy Weather Download : https://easyweather.software.informer.com/7.8/
This is a radio frequency ID card reader module that can read the ID card's serial numbers. It can help to design intelligent access control systems. When the module sensed ID card, it will convert the card number into a 9-digit hexadecimal number, each digit of which will be converted into ASCII code. Then it adds a starting byte and 5 other bytes, so a total of 15 bytes output to the serial port. You can convert it into a decimal number that is the serial number engraved on the ID card.
Features:
- Support Card Type: Read-only ID cards (such as EM4100, EM4001, etc.)
- Working voltage: 4.5~5.5VDC
- Working current: 40mA (max)
- Working frequency: 125KHz
- Reading distance: 2~5cm
- Logic Interface: UART TTL serial port
- Communication format: 8N1
- Baud rate: 9600
- Induction coil: pluggable
- Coil size: 35X40mm
- Coil lead length: 15cm
- Great for DIY
- Applications: Access control systems, Attendance system
Our setup guide
The BME280 is a humidity sensor especially developed for mobile applications and wearables where size and low power consumption are key design parameters.
BME280, the precision sensor from , is soldered onto PCB.
Not only the pressure and the temperature, this sensor can measure humidity.
It uses both I2C and SPI (supports 3-, 4-wire SPI) interface
Specifications:
Supply Voltage: 1.8 - 5V DC
Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz)
Operational Range:
Temperature: -40 to 85°C
Humidity: 0-100%
Pressure: 300-1100 hPa
Temperature: 0.01°C
Humidity: 0.008%
Pressure: 0.18Pa
Accuracy:
Temperature: -1°C
Humidity: -3%
Pressure: -1Pa
I2C address
SDO LOW : 0x76
SDO HIGH: 0x77
What's in the box?
1 x bme280 sensor
1 x header
The Raspberry Pi Foundation Project
IRFZ44N is a widely used MOSFET transistor designed to use in variety of general purpose applications. The transistor possesses high speed switching capability which makes it ideal to use in applications where high speed switching is a crucial requirement.
Specification:
Type:Field-Effect Transistor
Brand Name: International Rectifier
Package Type: Throught Hole
Model Number: IRFZ44NPBF
TO-220AB: MOSFET N-Channel, Metal Oxide
55V 49A: FETs - Single
Mosfet Type : N-channel
Current Rating : 49A
Rds (On) : 17.5mΩ
Voltage Rated : 55V
Package Contents:
1 x IRFZ44N Transistor
Resources:
Introduction to Transistors
Different Types of Transistors and Their Working
This product is protective case of Arduino MEGA2560 R3. It provides easy connection to other components. It is made by high grade acrylic providing protection for your Arduino
Feature:
Name: Arduino MEGA2560 R3 DIY acrylic case
Dimensions: 118 x 72 x 18mm
Weight: 72g
Material: A level acrylic
For Arduino MEGA2560 R3 Development Board only
Please Note:
Arduino Mega is not included.
Don't forget to remove the protective film from the acrylic parts.
Package includes:
1 x Transparent Acrylic case
Laser Safety Glasses 200-450nm Eye Protection Green Lens. Not suitable for high power laser, only suitable for low power laser. Laser light is harmful to human eyes, please choose these goggles to protect your eyes!
Brand: Eleksmaker
Material: Plastic
Item: Laser Protective Glasses
Applicable Model: 200-450nm Wavelength
Optical Density (OD): OD4
Blue Laser Visible Light Transmission: <50%
Red Laser Visible Light Transmission: >60%
Features:
- Durable and comfortable to wear.
- Fit for 200-450nm blue-violet lasers.
- Ideal for use in most laser applications.
Package includes:
1 x Laser Safety Glasses
These long-lasting bits are made from high quality carbide for a precise and easy cutting experience.
Single-core tinned copper wire is used, which is easy to weld and anti-oxidation, and is not easy to break. The copper wire can withstand a high temperature of 80°C, making it suitable for a variety of thermal overload applications. The single-strand copper core has strong resistance to tension and surge current, which is convenient for shaping. Packaged by reel, the copper core has a moderate diameter and clear lines, making it easy to use and store. Copper wire is suitable for welding notebooks, motherboards, LCD screens, displays and other circuit boards.
Features
Total length: about 150M
Wire type: 30AWG
Single core wire outer diameter: 0.55mm
Copper core diameter: 0.25mm.
Temperature: 80 degrees, single-strand copper core crossing tin, with antioxidant effects.
Color: Black
What's in the box?
1 x Black wire wrap
Single-core tinned copper wire is used, which is easy to weld and anti-oxidation, and is not easy to break. The copper wire can withstand a high temperature of 80°C, making it suitable for a variety of thermal overload applications. The single-strand copper core has strong resistance to tension and surge current, which is convenient for shaping. Packaged by reel, the copper core has a moderate diameter and clear lines, making it easy to use and store. Copper wire is suitable for welding notebooks, motherboards, LCD screens, displays and other circuit boards.
Features:
Total length: about 250M
Wire type: 30AWG
Single core wire outer diameter: 0.55mm
Copper core diameter: 0.25mm.
Temperature: 80 degrees, single-strand copper core crossing tin, with antioxidant effects.
Color: Red
What's in the box?
1 x Red wire wrap