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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

• Material: Plastic
• Indoor temperature °C display.
• It comes with a mounting clips which allows it to be panel mounted
• Temperature range: -50 ~ 70 Degrees.
• Usage temperature: -10 ~ 50 Degrees.
• Usage humidity:  5% ~ 80%
• Accuracy:  /-01 Degrees.
• Distinguishing temperature: 0.1 Degrees.
• Power: 2 x DC1.5V LR44 button batteries (Not included)
• Cable length:  0.8M.
• Size:  48 x 28 x 15(mm)
• Colour:  Black

In order to  properly seat your Bowden tube, it is key to have a clean, square end. Without this, you risk oozing, or worse, clogging in the hot end. This super-sharp tubing cutter is the perfect tool for obtaining a clean, square cut in your tubing, every time.

Features a stainless steel blade and switch button. The housing is made from tough durable plastic. Can also be used to cut filament. But do not use as a wire cutter or you will dull the blade.

 What's in the box?

1 x Tube Cutter

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

Please Note: Only for use with 2.5inch notebook HDD and SSD, not for use with 3.5 inch desktop HDD

Features

• Comply with serial ATA2.0 standards.
• Compatible with USB port (1.0,1.1 &2.0) & SATA Hard disk (1.5 GB/S & 3 GB/s).
• Added USB2.0 independent power supply interface, support 2.5 "high-capacity memory driver.
• Compatible with Windows 7 (32-bit/64-bit)/Vista (32-bit/64-bit)/XP (32-bit/64-bit)/server 2003 & 2008 (32-bit/64-bit) system A

Specifications

• Adapter SATA III USB 3.0 Cable External Hard Drive USB to Serial ATA 22pin Converter Hard Disk 6 Gbps for 2.5" HDD/SSD.
• This USB 3.0 to SATA Converter Cable connects any standard 2.5 inch SATA Hard Drive or Solid State Drive (SSD) to a computer through USB 3.0 ports. It's a ideal for you to backup files or upgrade your notebook hard driver.
• SATA 3 specification Support speed up to 6Gbps;
• Easy and quick access to external storage;
• LED activity indicator;
• Fully compatible with USB 3.0 and backwards compatible with USB 2.0/1.1;
• Plug and play,hot-swapping;
• Support Windows 98/2000/XP/Vista/7/8, Mac OS X.

 
What's in the box?

1 x  Sata Cable for 2.5" SSD/HDD

• 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

If you own an Arduino UNO R3, you might need this case/enclosure :) This is pretty simple yet practical casing designed for Arduino UNO. It offers plenty of inner space, and if you need to access the GPIO of Arduino UNO, the top cover has an opening for it. It is perfect casing for educator, beginner, or maker that need to access the GPIO. With its transparent color and build using ABS to provide rugged protection to your Arduino UNO.

The case comes in two parts so you can simply snap it together, no screws or nuts needed. There is a base plane, where you should place the Arduino UNO board. Arduino UNO fit into the base plane nicely, no screw is needed to secure the Arduino. The best part for this enclosure is you can access all the pins and ports on the Arduino UNO. This case suitable for Arduino Uno Rev3 and also Uno Compatible (CH340).

Note: If you want to use this case with Arduino Uno Rev3, you need to remove the base first before putting it into this case.

Features

• Protective case designed specifically for Arduino Uno R3.
• The case is a two-piece injection-molded that snaps together around for Arduino. Holds the board firmly in place.
• It provides tough protection for Arduino UNO while providing access to all connectors.
• Easy access to each header, USB port, power jack, the reset button, etc.
• Includes reset key for use with the Uno's reset button. Secondary screw-mounting points for securing for Arduino.

Note: Arduino UNO board not included in the packing list.

Specifications

• Colour: Transparent
• Material: ABS
• Product Size: Approx. 7.5cm x 6cm x 1.7cm
• Weight: About 25g

Note: Not Suitable to open and close the case frequently (Clip may break easily). It may be softer than normal ABS casing.

What's in the box?

1 x Enclosure for Arduino UNO - Transparent

Ultrasonic Range finder has been very useful in many electronic project. It is low cost and teaches us the propagation of sound wave, learning about science while completing your project:) While it is popular, HC-SR04 ultrasonic sensor is 5V operated, so it is difficult to be used with 3.3V system like NodeMCU, Wemos, Raspberry pi, micro:bit or 3.3V Arduino board. No more waiting, we bring you the 3.0V to 5.5V Ultrasonic Ranging Module.

Using your echo-location abilities to detect tasty fish treats. Until genetic modifications catches up with our desires, we'll just have to make do with these handy 3V Ultrasonic Sonar Distance Sensor and a pair of flippers. These ubiquitous sensors are really common in robotics projects, but they can also be used for automation, interactive art and motion sensing. They work at about 2cm to 450cm(5V) or 400cm(3V) away, but we think 10cm-250cm will get you the best results.

These sensors are fast, fairly easy to use, and low cost. Unlike the more common HC-SR04 series, this model can be powered by 3V or 5V and the logic level will be the same. This makes this model great for use with just about any microcontroller or microcomputer. And, its HC-SR04 software compatible so just plug it in and it works the same! (Note the size is different from the HC-SR04 so you may need to make mounting adjustments)

Of course you can also use with 5V system such as Arduino UNO, Arduino Mini and Maker UNO.

Features

• Voltage: 3V - 5.5VDC
• Current: 2.2mA
• Measuring Range: 2cm - 450cm
• Working Temperature: 0ºC to 70ºC
• Compatible with HC-SR04 Ultrasonic Sonar Distance Sensor
• Properly labelled pin assignment
• Arduino and Raspberry Pi compatible

What's in the box?

1 x 3V - 5.5V Ultrasonic Ranging Module

You might need a bracket to mount this sensor

Resources

• Arduino Sketch for HC-SR04
• Testing Ultrasonic Ranging Sensor, HC-SR04, tutorial
• HC-SR04 Microchip PIC16F887, tutorial

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

• Supports Micro SD cards, Micro SDHC card (high speed card)
• Level conversion circuit board that interfaces level for 5V or 3.3V
• Power supply is 4.5V ~ 5.5V, 3.3V voltage regulator circuit board
• Standard communication interface SPI interface
• 4 x M2 screw positioning holes for easy installation

• GND to ground,
• VCC is the power supply
• MISO, MOSI, SCK is SPI bus
• CS is the chip select signal pin

• 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.

• Product: MG90S Servo
• Torque: 2.0kg/cm(4.8V), 2.8kg/cm(6V)
• Speed: 0.11s/60°(4.8V), 0.09s/60°(6V)
• Rotate angle: 180°
• Operating voltage: 4.8 ~ 6V
• Gear: metal
• Dead band: 5us
• Weight: 12.2g
• Dimension: 22.8mm × 12.2mm × 28.5mm

HX711 is an electronic scale module, whose working principle is to convert the measured changes in resistance value changes, through the conversion circuit into electrical output.


Features

• Size: 33mm x20mm / 1.29 " x0.78 "
• Range:5kg
• Operating temperature:-20℃~ >85℃
• Ambient Humidity:10%-80RH
• Voltage range: 2.6~5.5V
• Weight: 32g

What's in the box?

1 x Weighing Sensor
1 x HX711 Module

Resources

Building a Raspberry Pi weight scale
Python Library
Building an Arduino weight scale