2x AAA 3V battery holder for Micro:bit

CNC shield for arduino works as a controller for CNC type milling machines,
3D printers, laser cutters .
CNC Shield Expansion Plate V3 Engraver 3D Printer features:

• 4 compatible sockets for use of A4988 stepper motor controllers (PAP), DRV8825, other compatible
• 4 support axes X, Y, Z, A
• 2 limit switches for each axis (6 in total)

IOBIT expansion board for the micro:bit minicomputer. Allows connection to all minicomputer outputs via a pin strip.  

Ceramic Capacitor 330nF (0,1uF) 50v 104 PCB PIC Arduino features:
-Type: ceramic Y5V
-Tolerance: +80% -20%
-Dimensions: diameter 9.5mm, pitch 5.08mm

Free metal wheel with white plastic support.
It allows a 360 ° rotation, wheel silently and without problems. Free metal wheel 360° with plastic support for robotics features:
- Main material: Polypropylene (PP), Steel.
- Main color: White, silver tone. - Dimensions of support: 50x24mm. - Ball diameter: 15.80mm.  

Buzzer alarm to convert electrical to acoustic signals in robotics devices and Arduino projects.
Buzzer 5V Active Buzzer 4 to 7V DC features:

- Input voltage: 4V to 7V
- Diameter: 12mm
- Height: 9.5mm
- Spacing Pins: 7.6mm
- Maximum Current:

Voltmeter Amperemeter DC Red and Blue 100V 10A features:
- Supply voltage: 4.5V to 30V
- Voltage measurement range: 0V to 100V (± 1%)
- Min voltage resolution: 0.1V
- Current measurement range: 0A to 10A (± 1%)
- Min current resolution: 0.01A
- Operating current: 5mA to 15mA
- Display: Red LED color (Voltage) and Blue LED color (Intensity)
- Includes reverse polarity protection
- Measurement refresh time: 500ms
- Screen dimensions: 48 x 29 mm
- Recessed hole: 45.5 x 26.5 mm
- Depth: 21 mm
- Cable length: 150 mm
- Operating temperature: - 10ºC to 65ºC
- No battery needed
- Dual panel with voltmeter and digital ammeter

The LilyPad development card is built with an ATmega 328 microcontroller, which has an Arduino bootloader.
It has a minimum number of components to keep a small size and allow the user a neat job and as small as possible.
LilyPad is designed to be easily integrated into clothing, e-textiles and "Wearables" projects. This card works from 2 to 5V. It presents an automatic reset for even easier programming.
The back of the LilyPad is completely flat.
It has a surface mount programming connector so that the head has a correct contact. Each LilyPad was creatively designed to have large connecting pads that allow it to be cooked to any garment.
Various inputs, outputs, energized forms and sensors are available for use. Lilypad 328 Main Board ATmega328 features: