Generic3
Specifications
| Colour | Size | Wavelength(nm) | Voltage(V) | MCD | Lens colour |
| Red | 5mm | 620-630 | 1.8-2.3 | 800-1000 | Red diffused |
| Yellow | 5mm | 580-590 | 1.8-2.3 | 800-1000 | Yellow diffused |
| Green | 5mm | 520-530 | 2.8-3.6 | 800-1000 | Green diffused |
| White | 5mm | 6000-6500k | 2.8-3.6 | 14000-16000 | Clear |
| Blue | 5mm | 460-470 | 2.8-3.6 | 800-1000 | Blue diffused |
What's in the box?
10 x Green LED 5mm
Resources
Specifications
| Colour | Size | Wavelength(nm) | Voltage(V) | MCD | Lens colour |
| Red | 5mm | 620-630 | 1.8-2.3 | 800-1000 | Red diffused |
| Yellow | 5mm | 580-590 | 1.8-2.3 | 800-1000 | Yellow diffused |
| Green | 5mm | 520-530 | 2.8-3.6 | 800-1000 | Green diffused |
| White | 5mm | 6000-6500k | 2.8-3.6 | 14000-16000 | Clear |
| Blue | 5mm | 460-470 | 2.8-3.6 | 800-1000 | Blue diffused |
What's in the box?
10 x Red LED 5mm
Resources
Technical parameters
HC-SR505 range range of 3-4 meters (9-12 feet). When triggered, the sensor output goes HIGH for approximately 6-12 seconds then returns LOW.
Specifications
| Colour | Red blue black white green yellow |
| Material | ABS |
| Size | 170 tie points |
| Application |
|
What's in the box?
6 x Mini breadboards
Resources
The standard RC servo motors only rotate 180° because they were designed for the radio control (RC) car or plane. But this limitation is annoying for robotics application. Hence, the manufacturer made a smart move by introducing the 360º continuous rotation servo motor that able to control with the standard RC signal.
For more info on standard RC servo control, please check the Wiki.
- 360º continuous rotation
- Metal Gears
- Operation Voltage: 4.8 - 6.6VDC
- Operating Speed: 0.15sec / 60 degrees (6.0V no load)
- Torque: 11kg.cm at 6V
- Dimension : 40 x 19 x 43mm
- Weight: 69g
What's in the box?
1 x MG995 360 Continuous Servo1 x Servo horns and accessories
Resources
Creates a variable resistance that you can change by turning the knob
Specifications
- Single turn 1K
- Linear
- Carbon
- PCB type
- 5mm pitch pin
- Spline shaft
- 17mm diameter
- 0.2W
- Shaft length 10mm
- Shaft diameter 6mm
What's in the box?
1 x Potentiometer
Resources
Python Library
Definition, Types, And Working Principle
T-nuts for aluminium profile 20 series.
The hammer nuts or T nuts can be used for the same purpose as the threaded plates and the aluminium extrusion nuts. They can be inserted into the extrusion slot after assembly.
Features
- Hammer nut with a step as guiding help and rotation stop.
- Turn in at each position of the profile slot.
- Serration provides vibration resistance and destroys the anodized surface of the aluminium profile for ESD protection.
What's in the box?
10 x M5 T-nut
Description:
ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed.
The Arduino Compatible Nano V3 development board is a microcontroller board based on the Arduino Nano
Specifications:
- Microcontroller Atmel ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7V ~ 12V
- Input Voltage (limits): 6V ~ 20 V
- Digital I/O Pins: 14 (of which 6 provide PWM output)
- Analog Input Pins: 8
- DC Current per I/O Pin: 40mA
- Flash Memory: 32KB (ATmega328) (of which 2 KB used by bootloader)
- SRAM: 2KB (ATmega328)
- EEPROM: 1KB (ATmega328)
- Clock Speed: 16MHz
1 x Arduino Compatible Improved Version Nano V3.0 with headers pre-soldered
1 x USB cable
Resources:
Getting started with Arduino products
Specifications
- Colour: black
- Number of pins: 28 pins (14pins / row x 2 rows)
- Pin length: 2.9mm
- Pitch: 2.54mm
- Row to row distance: 7.62mm
- Dimension: 35 x 10 x 8mm (L x W x H)
- Contact termination through hole
- Contact type dual wipe contact
What's in the box?
1 x 28 Pins IC Sockets
Is it time to upgrade or repair your 3D Printer's pulley wheels with these high quality TEVO Pulleys made from POM (Polyoxymethylene/acetal)
Specifications
- Type: Pulley wheel
- Bore: 5mm
- Size: about 24mm x 10mm
- Material: POM
- With Bearings: YES
- Bearing: 625zz bearing
What's in the box?
1 x Wheel with Bearing
Using a socket instead of soldering the IC directly into your project allows for easy removal and replacement in case of damage.
Specifications
- Colour: black
- Number of pins: 8 pins
- Pin length: 2.9mm
- Pitch: 2.54mm
- Row to row distance: 7.62mm
- Dimension: 10mm x 10mm x 8mm (L x W x H)
- Contact termination through hole
- Contact type dual wipe contact
What's in the box?
1 x 8 Pin IC sockets
Using a socket instead of soldering the IC directly into your project allows for easy removal and replacement in case of damage.
Specifications
- Colour: black
- Number of pins: 16 pins
- Pin length: 2.9mm
- Pitch: 2.54mm
- Contact termination through hole
- Contact type dual wipe contact
What's in the box?
1 x 16 pin IC socket
This provides greater power for electronic projects
Features
- Rated voltage: DC 7.4V
- Material: ABS
- Product certification: ROHS
- Size: 77.7mm X 40.21mm X 21.54mm
What's in the box?
1 x 2 slot 18650 battery holder
Need batteries? You will find our battery selection here
The module uses a quality relay with a normally open interface
Using SMD optocoupler isolation, driving ability, stable performance
The module can be set high or low with a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
A power indicator (green) and a relay status indicator (red)
Specifications
- Maximum load: AC 250V/10A, DC 30V/10A
- Trigger current: 5mA
- Working voltage: 5V
- Module size: 50mm x 26mm x 18.5mm (L x W x H)
- Four mounting bolt holes, diameter 3.1mm
Module interface
DC : positive power supply (VCC)
DC-: negative power supply (GND)
IN: can be high or low level to control the relay
Relay outputs
NO: normally open
COM: Common Interface
NC: normally closed
High and low level trigger options
It is low level trigger when jumper connects to LOW pin
It is high level trigger when jumper connects to HIGH pin
What's in the box?
1 x 1 Channel H/L level trigger optocoupler relay module
Resources
Features
Simple relay magnetic circuit to meet low cost of mass production
Specifications
- Model: SRD-5VDC-SL-C
- Coil voltage: DC 5V
- Coil resistance: 70Ω ~ 80Ω
- Contact resistance: 100Ω Max
- Operation time: 10msec Max
- Release time: 5msec Max
- Ambient temperature: -25°C to 70°C
- Operating humidity: 45 to 85%RH
- Operating current: 43mA ~ 46mA
- Release current: 15mA ~ 18mA
- Pin: 5Pin
- Insulation resistance: ≥100M (Ohm)
- Dielectric strength:
- Between coil & contacts: AC 1500V 50HZ ~ 60HZ/min
- Between contacts: AC 1000V 50HZ ~ 60HZ/min
- Rated load:: 10A 250V AC / 10A 125V AC / 10A 30V DC / 10A 28V DC
- Size: 1.8 x 1.5 x 1.6cm (L x W x H)
What's in the box?
1 x SRD-5VDC-SL-C 5V Power Relay
- Motor Diameter: 4mm
- Motor Length: 8mm
- Eccentric Wheel Size: 4.4x4.4mm
- Voltage: DC1.5-3V
- Current: 0.15-0.23A
Features
- Stable and reliable performance.
- Easy disassembly type.
- Easy to clean and maintain.
- Excellent quality and long service life.
- Has been widely applied in RC car, RC aircraft.
Creates a variable resistance that you can change by turning the knob
Specifications
- Single turn 5K
- Linear
- Carbon
- PCB type
- 5mm pitch pin
- Spline shaft
- 17mm diameter
- 0.2W
- Shaft length 10mm
- Shaft diameter 6mm
What's in the box?
1 x Potentiometer
Resources
Python Library
Definition, Types, And Working Principle
- Operating temperature: -40°C to 70°C
- Rated voltage: AC 125V-250V
- Per weight: 2g
- Current rating: 5A
- Size: 20 x 10 x 6mm (L X W X H)
- PCB Terminals Circuit Board
- With Roller Lever Limit
Working principle
By external mechanical force transmission elements (by pins, buttons, levers, rollers, etc.) will be used to force action on a reed, producing reed instantaneous action when action shifted to the critical point, so moving contact with the fixed contact spring at the end of the action point fast on or off.
When the force is removed on the drive components, action reed produce reverse action force transmission element reverse stroke when the action reaches a critical point reed, instantaneous reverse action.
Feature: contact spacing is small,short stroke action,according to the power of small,fast-break
Application
Apply in A computer mouse, car mouse, automobile electronic products, communications equipment, military products, test instrument, gas water heater, gas burner, small home appliance, microwave oven, electric rice cooker, floating ball supporting equipment, medical equipment, building automation, electric tools, ect.
What's in the box?
10 x Micro roller switch
This is a new design ABS case to protect your Raspberry Pi 4 Model B computer, it is only compatible with your Raspberry Pi 4 Model B, does not support other versions. Also supports a dc 5v cooling fan.
Features
- ABS material.
- Easy to install.
- All ports and slots of the case match with Raspberry Pi 4 Computer Model B perfectly.
- Supports a DC 5v extractor cooling fan.
What's in the box?
1 x ABS Case for Raspberry Pi 4 Model B
1 x Cooling Fan 30mm x 30mm x 7mm
4 x Heat Sinks(new add on to this case)
Resources

This is a low cost Red Laser Diode in Copper Casing. The Mean Wave Length is 650nm and the Power Rating is 5mW.
Specifications
- Output Power: 5mw
- Wavelength: 650nm
- Working Voltage: 3~5V
- Working Temperature: +10 ~ +40 Celsius
- Laser Shape: line / point / cross
- Focusable: Yes
- Material: Metal
- Dimensions : 12mmx12mmx40mm
What's in the box?
1 x 3V 650nm 5mW Red Dot Diode Laser Heads