Generic2

Build Your DIY Powered Models, Solar Display and Solar Toys. This 4.5V solar panel is lightweight, and durable, making it perfect for any small on the go project.

Specifications

• Power: 0.27W
• Voltage: 4.5V
• Size: 61mm x 61mm

What's in the box?

1 x 4.5V Solar panel

Build Your DIY Powered Models, Solar Display and Solar Toys. This 4V solar panel is lightweight, and durable, making it perfect for any small on the go project.

Specifications

• Power: 1.5W
• Voltage: 4V
• Size: 114mm x 58mm

What's in the box?

1 x 4.5V Solar panel

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

1117T33 is a three terminal linear voltage regulator IC with a fixed output voltage of 3.3V which is useful in a wide range of applications.

A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions. 

Specifications

• Output Voltage:    3.3 V
• Output Type:    Fixed
• Package Type:    TO-220
• Maximum Output Current:    1.3A
• Mounting Type:    Through Hole
• Maximum Input Voltage:    15 V
• Pin Count:    3
• Number of Outputs:    1
• Polarity:    Positive
• Quiescent Current:    5mA
• Accuracy:    ±1%
• Minimum Operating Temperature:    0 °C
• Maximum Operating Temperature:    150 °C
• Height:    9.15mm
• Width:    4.6mm
• Line Regulation:    6 mV
• Length:    10.4mm
• Dimensions:    10.4 x 4.6 x 9.15mm
• Load Regulation:    10 mV

What's in the box?

1 x 3.3 V TO-220 voltage regulator

You might also need a heatsink for your regulator

Resources

Understanding How a Voltage Regulator Works

This is low cost LDR (Light Dependent Resistor). Basically it is a light sensitive resistor, the resistance will decrease when the surface is expose to light. It is widely used to detect Day or Night, example in automatic car porch light. 

Features

• Use as a resistor, just two terminals, no polarity
• Small size LDR
• Resistance decreases when it is expose to higher light intensity
• Normally use with another Resistor as voltage divider

What's in the box?

10 x 5528
10 x 5506
10 x 5516
10 x 5537
10 x 5539

Resources

• SK40C tutorial page, or project 9.
• About Photo resistors

Nylon standoffs are essential components in electronic projects, particularly in applications where circuit boards need to be securely mounted within an enclosure or chassis.

Here's how they are typically used:

1. Board Mounting: Nylon standoffs are used to elevate and secure printed circuit boards (PCBs) within an electronic enclosure or chassis. They provide a stable platform for the PCB, preventing it from coming into contact with conductive surfaces that could cause short circuits.

2. Mechanical Support: Standoffs act as spacers between the PCB and the mounting surface, ensuring proper ventilation and preventing heat buildup. This is crucial for maintaining the integrity of sensitive electronic components.

3. Isolation: Nylon standoffs help to electrically isolate the PCB from the chassis or enclosure. This isolation is essential for preventing electrical interference, reducing the risk of noise and signal degradation, and enhancing overall circuit performance.

4. Easy Access: Standoffs facilitate easy access to the PCB for maintenance, repairs, or upgrades. By raising the board above the mounting surface, technicians can easily reach components and make necessary adjustments without disassembling the entire system.

5. Vibration Dampening: In applications where vibration is a concern, nylon standoffs can help dampen vibrations transmitted to the PCB, thereby reducing the risk of component failure or solder joint fatigue over time.

Overall, nylon standoffs play a crucial role in ensuring the structural integrity, electrical isolation, and proper functioning of electronic systems. Their versatility and reliability make them indispensable components in a wide range of electronic projects.

What's in the box?

1 x Nylon Standoff M3 x 6mm

Nylon standoffs are essential components in electronic projects, particularly in applications where circuit boards need to be securely mounted within an enclosure or chassis.

Here's how they are typically used:

1. Board Mounting: Nylon standoffs are used to elevate and secure printed circuit boards (PCBs) within an electronic enclosure or chassis. They provide a stable platform for the PCB, preventing it from coming into contact with conductive surfaces that could cause short circuits.

2. Mechanical Support: Standoffs act as spacers between the PCB and the mounting surface, ensuring proper ventilation and preventing heat buildup. This is crucial for maintaining the integrity of sensitive electronic components.

3. Isolation: Nylon standoffs help to electrically isolate the PCB from the chassis or enclosure. This isolation is essential for preventing electrical interference, reducing the risk of noise and signal degradation, and enhancing overall circuit performance.

4. Easy Access: Standoffs facilitate easy access to the PCB for maintenance, repairs, or upgrades. By raising the board above the mounting surface, technicians can easily reach components and make necessary adjustments without disassembling the entire system.

5. Vibration Dampening: In applications where vibration is a concern, nylon standoffs can help dampen vibrations transmitted to the PCB, thereby reducing the risk of component failure or solder joint fatigue over time.

Overall, nylon standoffs play a crucial role in ensuring the structural integrity, electrical isolation, and proper functioning of electronic systems. Their versatility and reliability make them indispensable components in a wide range of electronic projects.

What's in the box?

1 x Nylon Standoff M3 x 12mm
1 x M3 x 8mm screw
1 x M3 Nut

The MQ-7 is a handy breakout board that measures carbon monoxide in the air with great accuracy, tracking levels from 20 up to 2000 ppm. As CO levels rise, the sensor's internal resistance drops, sending an analog signal that development boards like an Arduino can easily read.

This is a crucial safety tool because carbon monoxide is invisible and deadly. Since it's produced by various engines and machines, it can quickly accumulate to dangerous levels in sealed areas like workshops or basements—and even breathing it in during heavy traffic can impact your health. The MQ-7 serves as a quick-acting alarm to keep people safe, and it comes with convenient extras like a sensitivity adjustment screw to make wiring and coding it a breeze.

Features

• Model: MQ-7
• Technology: Semiconductor gas sensor
• Power Requirement: 5V input
• Enclosure Style: Standardized plastic cap
• Primary Target: Carbon Monoxide
• Detection Threshold: 20 - 2000 parts per million (ppm)

Typical use

If you need to keep tabs on carbon monoxide, the MQ-7 sensor module is a great investment. It is perfect for spaces where toxic exhaust or fumes can trap easily—like garages, workshops, labs, or basements. It is also fantastic for science projects, letting you measure exactly how much CO gas a specific reaction produces. Because you can wire it right into an Arduino or other development board, you don't even need to stay in the room; the sensor will log all the data automatically while you work on something else.

What's in the box?

1 X MQ-7 sensor module

Resources

Analog to Digital converter not included
Wiki

The MKA14103 is a compact, high-reliability glass encapsulation magnetic reed switch designed for precise proximity sensing, count tracking, and non-contact limit switching. Featuring a Single-Pole Single-Throw, Normally Open (SPST-NO) configuration, the contacts close instantly when a magnetic field is introduced and open when the magnet is removed.

With its standard 10-15AT magnetic sensitivity rating, this miniature switch triggers reliably with small permanent magnets, making it an excellent choice for custom alarm systems, micro-robotics, automated flow meters, and space-constrained DIY microcontroller projects.

Key Applications

• Security & Alarms: Concealed window and door open/close sensors.
• Smart Meters: Pulse counting for water, gas, and electricity flow meters.
• Industrial Automation: Pneumatic cylinder position sensing and non-contact limit switches.
• Consumer Electronics: Lid/cover close detection for laptops and smart devices.

Specifications

• Model: MKA14103 (MKA-14103)
• Contact Form: Form A (SPST-NO – Normally Open)
• Glass Length: 14 mm
• Glass Diameter: 2.0 mm
• Total Length (including leads): Approximately 44 mm
• Actuation Range (Sensitivity): 10 - 15 AT(Ampere-Turns)
• Maximum Switching Voltage: 100V DC/AC}
• Maximum Switching Current: 0.5A
• Maximum Contact Rating (Power): 10W
• Contact Resistance: Less than 100mOhm

Features

• Hermetically Sealed: The precious-metal contacts are sealed inside an inert gas atmosphere within the glass tube, protecting them from dust, humidity, and corrosion for millions of cycles.
• Flexible Axial Leads: Tough, tin-plated leads can be easily bent or trimmed for printed circuit board (PCB) mounting or breadboard prototyping.
• Zero Power Consumption: Requires no standby power to operate; the switch is actuated entirely by physical magnetic fields.

Installation Note: Reed switches are made of glass and are fragile. When bending or trimming the axial leads, always hold the lead securely with a pair of long-nosed pliers between the glass body and the bend point. This prevents stress from cracking the glass-to-metal seal, which can ruin the vacuum and cause the switch to fail.

What's in the box?

5 x Normally Open Reed Switch MKA14103

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
• 21mm x 15mm at the top
  
  

What's in the box?

1 x Rocker Switch

Resources

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

Nylon standoffs are essential components in electronic projects, particularly in applications where circuit boards need to be securely mounted within an enclosure or chassis.

Here's how they are typically used:

1. Board Mounting: Nylon standoffs are used to elevate and secure printed circuit boards (PCBs) within an electronic enclosure or chassis. They provide a stable platform for the PCB, preventing it from coming into contact with conductive surfaces that could cause short circuits.

2. Mechanical Support: Standoffs act as spacers between the PCB and the mounting surface, ensuring proper ventilation and preventing heat buildup. This is crucial for maintaining the integrity of sensitive electronic components.

3. Isolation: Nylon standoffs help to electrically isolate the PCB from the chassis or enclosure. This isolation is essential for preventing electrical interference, reducing the risk of noise and signal degradation, and enhancing overall circuit performance.

4. Easy Access: Standoffs facilitate easy access to the PCB for maintenance, repairs, or upgrades. By raising the board above the mounting surface, technicians can easily reach components and make necessary adjustments without disassembling the entire system.

5. Vibration Dampening: In applications where vibration is a concern, nylon standoffs can help dampen vibrations transmitted to the PCB, thereby reducing the risk of component failure or solder joint fatigue over time.

Overall, nylon standoffs play a crucial role in ensuring the structural integrity, electrical isolation, and proper functioning of electronic systems. Their versatility and reliability make them indispensable components in a wide range of electronic projects.

What's in the box?

1 x Nylon Standoff M3 x 8mm

You will find this motor and wheel can be installed conveniently with many fixed locations on the acrylicplate of most robot chassis, and is very suitable for Raspberry Pi, Arduino and MCU robotics.

Features

• Working Voltage: 3-6V
• Specifications: double shaft, the wheel can be attached at both sides of the motor
• Gear ratio: 1:48
• No-load speed (at 5V): 90RPM
• No-load current (at 5V): 190mA
• Rated Torque: 78mN.m (0.8kgf.cm)
• Wheel Diameter: Black Wheel: 66mm
• Wheel Thickness: Black Wheel: 25mm
• Wire length (optional): 15cm
• Motor Size: 70 x 36.5 x 24.5mm (L*W*H)
• Net Weight: 65g

What's in the box?

1 x motor
1 x wheel

You might also need a mounting bracket for this wheel

• Product: SG90 Servo
• Torque: 2.0kg/cm(4.8V), 2.2kg/cm(6V)
• Speed: 0.09s/60°(4.8V), 0.08s/60°(6V)
• Rotate angle: 180°
• Operating voltage: 4.8 ~ 6V
• Gear: plastic
• Dead band: 7us
• Weight: 10.5g
• Dimension: 22.8mm × 12.2mm × 28.5mm

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.

• Colour: Black
• Measuring humidity: 10%RH-99%RH
• Humidity accuracy: 5%
• Humidity display resolution: 1% RH
• Measuring temperature range: -50 centigrade~ 70 centigrade
• Temperature accuracy: 1 centigrade
• Temperature display resolution: 0.1centigrade .
• Operating voltage: 2 x 1.5V button LR44 button batteries (Not included)
• Dimension: 4.7x2.8x1.5cm(approx.)
• LCD dimension: 3.6x1.7cm(approx.)

Single-cell lithium base battery charger & protection module. The charging will be via a micro B connector. Lithium base battery includes Li-po and Li-ion battery as the charging and discharging characteristic is similar.

The USB micro B connector power input offers direct charging using widely available nowadays with power bank and also Android phone charger. With a maximum charging current of 1A, your battery can be charged faster and of course, do make sure the 5V input has sufficient power to provide more than 1A.

It comes with a TP4056 charging IC.

Using the module

What's in the box?

1 x 1A LIPO Charger Module with Protection

Resistors play an important role in an electronic circuit design. A major benefit of the Resistor Assortment Kit is that it includes all commonly used resistance values. Having the resistor kit on hand will ensure that needed resistors are readily available when constructing and testing your electronic circuit.

The Plusivo Resistor Assortment Kit contains a large assortment of resistors. It includes 30 commonly used resistance values which are:

10 Ω, 22 Ω, 47 Ω, 100 Ω, 15 Ω, 200 Ω
220 Ω, 270 Ω, 330 Ω, 470 Ω, 510 Ω, 680 Ω
1 kΩ, 2 kΩ, 2.2 kΩ, 3.3 kΩ, 4.7 kΩ, 5.1 kΩ
6.8 kΩ, 10 kΩ, 20 kΩ, 47 kΩ, 51 kΩ, 68 kΩ
100 kΩ, 220 kΩ, 300 kΩ, 470 kΩ, 680 kΩ, 1 MΩ

With a total of 600 resistors (all 0.25W), you'll never run out of resistors to use for your electronic projects!



This Resistor Assortment Kit is a joy to use. It comes with a plastic storage box that allows you to easily store the resistors. Just open the box and pick up the resistor you need. Now you have one less problem to worry about. :)

What's in the box?

20 x Resistor 10 Ω
20 x Resistor 22 Ω
20 x Resistor 47 Ω
20 x Resistor 100 Ω
20 x Resistor 150 Ω
20 x Resistor 200 Ω
20 x Resistor 220 Ω
20 x Resistor 270 Ω
20 x Resistor 330 Ω
20 x Resistor 470 Ω
20 x Resistor 510 Ω
20 x Resistor 680 Ω
20 x Resistor 1 kΩ
20 x Resistor 2 kΩ
20 x Resistor 2.2 kΩ
20 x Resistor 3.3 kΩ
20 x Resistor 4.7 kΩ
20 x Resistor 5.1 kΩ
20 x Resistor 6.8 kΩ
20 x Resistor 10 kΩ
20 x Resistor 20 kΩ
20 x Resistor 47 kΩ
20 x Resistor 51 kΩ
20 x Resistor 68 kΩ
20 x Resistor 100 kΩ
20 x Resistor 220 kΩ
20 x Resistor 300 kΩ
20 x Resistor 470 kΩ
20 x Resistor 680 kΩ
20 x Resistor 1 MΩ

PLEASE NOTE: Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH.

PD 20W LCD fast universal battery charger with professional discharge capacity testing function, capable of displaying capacity. The 18650 battery charger is suitable for 3.7V lithium batteries and 1.2V Ni MH Ni CD AA AAA batteries

You will need a suitable USB-C Power supply for this charger. We suggest our 27W power supply.

What's in the box?

1 x Liitokala Lii-402 Micro USB 4Slots Battery Charger
1 x USB-C male to USB A male Cable 

You will also need a power supply for this charger or plug it into another device like your laptop or PC