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Note: This kit comes with 4x AA batteries.

Note: Download the softcopy instruction manual (English) here. 

Images are for references only

Description:

The DIY (Do It Yourself) Kit for Children Age 4 to 12 Years Old

Have you seen a tennis ball launcher? No? Well, in this kit, you will learn how to build your very own ball shooter! But instead of using a tennis ball, you will be shooting with a foam ball with extreme speed! While building the launcher, you will also learn how to connect a DC motor with hook up with wheels which creates friction on the foam to launch it forward.

Features:

• Do It Yourself Foam Ball Launcher
• Suitable for age 6 years old and above
• Come with everything needed to assemble the launcher project
• AA batteries included
• Learn about DC motor and the concept of friction on different objects and surfaces
• Be able to launch paper balls and various materials (Not included in the kit)

Packing List:

• Wooden parts for the launcher structure
• Some double-sided tape
• Some screws
• 2 x orange stopper
• 1 x AA battery holder
• 1 x DC motor
• 1 x Metal rod
• 2 x Wheel
• 1 x Big metal bracket
• 2 x Small metal bracket
• 5 x Circular foam
• 1 x Screwdriver

Resources:

• Simple Instruction Manual (pdf)

This great essentials kit includes all you need to get started with pi-top.

Description:

The only Raspberry Pi 4 case with an inbuilt battery and power management system: ditch the power supply and take your projects anywhere.


Features:

Pi-top [4] DIY Edition provides full access to Raspberry Pi's ports and GPIO, and comes with:

• 5-hour internal battery
• Power management system
• Integrated heat sink and cooling fan
• Mini OLED screen and programmable buttons
• Integrated 1-watt loudspeaker

What's in the box?

1 x pi-top [4]
1 x Raspberry Pi 4 model B 1GB
1 x black Pi-Top power supply
1 x black micro HDMI cable
1 x 32GB blank Sandisk micro SD

You can download pi-topOS here.

Description:

These plastic holders are for easily attaching LEDs to boards, they are used with inner diameter 5mm LED. The product is made with good workmanship, to ensure a long lifespan. They are sturdy and durable.

Specifications:

Colour: black
Size: 5mm
Material: Plastic
5mm socket loaded 5mm of LED light-emitting diode

What's in the box?

10 x Plastic holders for 5mm LED

Description:

Omron 5V solid state relay 240V 2A, the output with a resistive fuse 240V 2A.
Input power: 5V DC (160MA)
input control signal voltage:
Low level module: (0-2.5V state low level relay OFF)
(3.3-5V state high level relay ON)

What's in the box?

1 x solid state relay

size: (L * W * H mm) 
    1 channel: 25 * 34 * 25
    2 channel: 55 * 33 * 25
    4 channel: 57 * 55 * 25
    8 channel: 106 * 56 * 25

Input section:
DC +: Connect the power supply positive (according to the relay voltage)
DC-: Connect the power supply negative
CH1: 1 relay module signal trigger terminal (low level trigger active)
CH2: 2 relay module signal trigger terminal (low level trigger active)
CH3: 2 relay module signal trigger terminal (low level trigger active)
CH4: 2 relay module signal trigger terminal (low level trigger active)

High and low meaning:

High-level trigger refers to the signal trigger side (IN) and the negative power supply has a positive voltage between the positive and the power supply is usually connected to the trigger side of a trigger, when the trigger side voltage or trigger to reach the trigger Voltage, the relay is pull.

Low-level trigger refers to the voltage between the signal trigger terminal and the negative terminal of the power supply is OV, or the voltage of the trigger terminal is lower than the voltage of the positive terminal of the power supply. When the voltage is low enough to trigger, the relay is pulled in, The negative side of the power supply is connected to the trigger side of a trigger, so that the relay is pull.

Electrical parameters:

Voltage Version Quiescent Current Operating Current Trigger Voltage Trigger Current
 1 channel 5V 0mA 12.5mA 0-2.5V 2mA
 2 channel 5V 0mA 22.5mA 0-2.5V 2mA
 4 channel 5V 0mA 48mA 0-2.5V 2mA
 8 channel 5V 0mA 102mA 0-2.5V 2mA


Instructions

1. Module power supply: the power must be DC, the voltage and the relay voltage to match
2. Wiring method:
When the trigger side of the signal trigger level, the relay will be connected, the device has electricity and work

Notes
 
1. Module power supply: power must be DC, 5V power supply
2. Module control terminal voltage: This module can only be used to control AC current, can not control DC current.

Description:

Omron 5V solid state relay 240V 2A, the output with a resistive fuse 240V 2A.
Input power: 5V DC (160MA)
input control signal voltage:
Low level module: (0-2.5V state low level relay OFF)
(3.3-5V state high level relay ON)

What's in the box?

1 x solid state relay

size: (L * W * H mm) 
    1 channel: 25 * 34 * 25
    2 channel: 55 * 33 * 25
    4 channel: 57 * 55 * 25
    8 channel: 106 * 56 * 25

Input section:
DC +: Connect the power supply positive (according to the relay voltage)
DC-: Connect the power supply negative
CH1: 1 relay module signal trigger terminal (low level trigger active)
CH2: 2 relay module signal trigger terminal (low level trigger active)
CH3: 2 relay module signal trigger terminal (low level trigger active)
CH4: 2 relay module signal trigger terminal (low level trigger active)

High and low meaning:

High-level trigger refers to the signal trigger side (IN) and the negative power supply has a positive voltage between the positive and the power supply is usually connected to the trigger side of a trigger, when the trigger side voltage or trigger to reach the trigger Voltage, the relay is pull.

Low-level trigger refers to the voltage between the signal trigger terminal and the negative terminal of the power supply is OV, or the voltage of the trigger terminal is lower than the voltage of the positive terminal of the power supply. When the voltage is low enough to trigger, the relay is pulled in, The negative side of the power supply is connected to the trigger side of a trigger, so that the relay is pull.

Electrical parameters:

Voltage Version Quiescent Current Operating Current Trigger Voltage Trigger Current
 1 channel 5V 0mA 12.5mA 0-2.5V 2mA
 2 channel 5V 0mA 22.5mA 0-2.5V 2mA
 4 channel 5V 0mA 48mA 0-2.5V 2mA
 8 channel 5V 0mA 102mA 0-2.5V 2mA


Instructions

1. Module power supply: the power must be DC, the voltage and the relay voltage to match
2. Wiring method:
When the trigger side of the signal trigger level, the relay will be connected, the device has electricity and work

Notes
 
1. Module power supply: power must be DC, 5V power supply
2. Module control terminal voltage: This module can only be used to control AC current, can not control DC current.