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• 3D printer T8 400mm Stainless Steel Lead Screw Screw nut Mounted ball bearing Shaft coupling Motor.
• Screw mainly use for Stepping motor driving guide rail,machine tool, and other equipment.
• Screw without processing, direct connected to bearing.
• T shape design, make of high quality stainless steel material.
• Easy to install and convenient to use.
• Fine producing and practical.
• Suitable for Industrial automation equipment, stepper motor rails;
• Fit for 3D printer; engraving machine; XYZ module; slider; lifts ect.

2x16 Character LCD is most popular display component for small controller like Arduino, but most of these LCD uses parallel interface. In most of the cases, you will need 10 pins to control it or to display message on it. 8-pin are for the data, Enable and Latch pin for signal control. Minimum, you will need 6-pin for 4-bit mode interface. Still a lot of pins being used up :(

This I2C module for LCD will help you save all those precious pins. This module will only need 2 GPIO pins (specifically I²C pins) to send message to Character LCD.

This module uses an I²C communication interface. Including the I2C pins: SCL and SDA, it only require two more pins for power, VCC and GND. It saves 4 to 8 pins on Arduino or any other controller. The pins are breakout into standard right angle header (2.54mm spacing), you can connect with female jumper wires directly.

It comes with potentiometer for LCD contrast adjustment, and configurable I2C Address through A0, A1 and A2 pads. Anyway, the default address is 0x3F or 0x27. There is also a mini jumper to activate or deactivate the backlight.

What's in the box?

1 x I2C Module for Character LCD

This is a Panel Meter that measures Voltages and Current. The display can measure voltages from 0v to 100v dc and measure current from 0 to 10 Amps. The display has 3 segments and can simultaneously calculate the power consumption in watts.



Specifications

• Voltage 0.0V to 100V
• Current 0A to 10A
• Working voltage DC 4 to 30V
• Working current <20mA
• Size 48mm x 29mm x 22mm

What's in the box?

1 x Digital Voltmeter Ammeter

Resources

For a load of 10A or more you will have to use a shunt as per diagram 3 and 4.

These connectors are made from high-temp nylon with gold-plated spring pins or sockets molded in. The shape of this generic XT60 prevents reverse polarity, and when plugged in the connection is super-solid. Perfect for applications up to 65A continuous draw.

• Solid and durable.
• Ensures high-amp connection.
• Low resistance for high current capacity.
• Superior technology suited to today's high power applications.
• Ergonomically designed and easy to grip.
• Easy to un-solder and reuse.
• Used in RC battery and motor projects
  

Specifications

• Model: XT60
• Colour: Yellow (as picture)
• Size: Approx. 23mm x 16mm
• Material: Copper PA66

Turn your ATX PC power supply into a handy test bench power supply.

• -12V
• 12V
• 5V
• 3.3V

Each output channel has a replaceable 5A fuse and corresponding ground connection with binding post easy to connect
Provide quick access to the typical voltages needed including 3.3V, 5V, 12V and -12V.
The power indicator and power switch easy to control ideal to DIY low voltage power supply for developing physical computing projects (embedded systems)


Specifications

• Product name : ATX power supply board 
• Model : XH - M229 
• Compatible with port: ATX (compatible with partial BTX type) 
• The PIN number: 24 pin 
• Switch : Yes 
• Number of sets of output : Four sets of different voltages 
• Size:48mm x 128mm x 30 mm

What's in the box?

1 x Power Chassis

As micro:bit is gaining traction in this region, powering it is a must :)

If you are new to micro:bit, it is a powerful embedded platform or microcontroller board with easy to get started features, even easier than Arduino. It can be powered by USB micro B when loading the program, or you can use 2 x AAA batteries. So here comes the battery holder for this microcontroller.

This is a 2 x AAA battery holder for micro:bit with cover and ON/OFF slide switch. Neat!

Note: Battery & micro:bit is not included.

Features

• Terminated with 2-way JST connector, match with battery input on
• micro:bit
• Holder for 2 x AAA batteries
• ON/OFF slide switch
• Comes with cover

Compatible with USB 2.0, it provides full isolation at 12 Mbps data rates. With isolation of 1500V, it has no external power supply, no driver required.

• ADUM3160 isolation voltage: 2500V
• Power module isolation voltage: 1500V
• Power supply: taken from the computer host USB port
• Operating environment: -40 °C to 85 °C
• Dimensions: 15mm x 25mm x 66mm

Great for short distance DC connections

Specifications

• Supports maximum current 3A
• Material: PVC
• Length: 1000mm(approx)
• Colour: Black

 
What's in the box?

1 x DC 5.5 x 2.1mm Male To 5.5 x 2.1mm Power Cable

Rocker Switches house a button for operation that can be pressed on either end like a seesaw to connect or disconnect an electrical circuit. They are often used as ON/OFF switches on the main power supplies for electronic devices.


Specifications

• 250 V
• 3A
• 10mm x 15mm at the top
  
  

What's in the box?

1 x Mini Rocker Switch

Resources

Python library
Introduction to Buttons and Switches
Types of buttons and switches

• Button/Coin compact design enclosure with On and Off Switch.
• Perfect for soldering, perfect for robotic ,electronic, and restoration projects.
• Holds one CR2032 coin batteries.
• Output: 3V
• Colour: Black

Please Note: This product does NOT include the Raspberry Pi Pico board.

Overview

This breakout board can help you wire and view the status of the GPIO pins.
Just plug your Raspberry Pi Pico into this board to complete the installation.

Compatible Models

Raspberry Pi Pico / Pico H / Pico W / Pico WH 

Main Features

GPIO status LED

LED on if GPIO outputs/inputs high level, LED off if GPIO outputs/inputs low level.

Independent LED

The status LED is driven by the chip instead of the GPIO so the GPIO will not be affected.

Terminal block and header

Connect to all GPIO headers of Raspberry Pi Pico, 2.54mm / 0.1in pitch.

GPIO name

The name of each GPIO is printed next to the port.

What's in the box?

1 x Breakout Board for Raspberry Pi Pico
1 x Pinout Card
1 x Slotted Screwdriver

• Ribbon of 40 x 300mm
• Male to Male

• Tested for Compatibility with the Raspberry Pi
• Breadboard compatible
• Colour: Multi-coloured

• Material: glass
• Dimension: Approx. 20mm x 5mm( LxH) / 0.8 inch x 0.2 inch

Note: This logic level shifter breakout comes pre-soldered with headers.

If you have ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be! The logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. Each level converter can convert 4 pins on the high side to 4 pins on the low side, with power supply pins on each side.

The usage of the level converter is very straightforward. The board needs to be powered from the two voltage sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the "HV" pin, low voltage (3.3V for example) to "LV", and ground from the system to the "GND" pin.

This module requires you to supply it with power from both the higher voltage level and the lower voltage level. Connect the higher voltage source to pin "HV" and its ground to pin "GND" near the "HV" pin. Also, connect the lower voltage source to pin "LV" and its ground to pin "GND" near the "LV" pin.

For example, if you were connecting your Arduino (5V signals) to an ESP8266 (3.3V signals), you would connect the "HV" pin on the module to the 5V supply pin on your Arduino and the "GND" pin near the "HV" pin to the "GND" pin on your Arduino. Then, you would connect the "LV" pin on the module to the 3.3V power source that is supplying power to the ESP8266 and connect the "GND" pin near the "LV" pin to the 3.3V power supply's ground. You would then connect the signal pin from your Arduino to one of the signal pins on this module (for example, pin "HV1"), and then you would connect the desired signal pin on the ESP8266 to the corresponding pin on this module ("LV1" if the higher voltage signal is connected to "HV1").

These are 4 Channel devices (works great for I2C or SPI) and will work with all microcontrollers, Arduino, Raspberry Pi, Intel Edison, etc. Use this module to connect two devices of different digital voltage levels. For example: connecting an Arduino (5V device) to an ESP8266 (3.3V device).

The logic level converter comes complete with header pins and can be used directly on a breadboard.