School, College Projects - Boards

Product Description :

DC 3V-12V DIY Kit RGB LED Flashing FED-201 Audio Spectrum Indicator LED Flashing Display. It’s 100% impressive and fast working totally hand made circuit.100% brand new and high-quality. It can be the best for school science projects, & Hobby electronic projects to learn component assembling. Can be used for ‘classroom teaching aid’ or ‘science fair/exhibition project Best for Educational Project Purposes for School / Collage. The LM3914N-1 is available in an 18-lead PDIP (NFK) package. The Circuit Is built Around IC LM3914N-1.

Specification:

1. LED: RGB Led Light.
2. IC: 2 x LM3914N-1.
3. IC: 18 Pins .
4. Package weight: 0.068.
5. Product Dimension: 13x9x2.

Features:

• Operating Voltage:3-12V
• IC can drive 10 LEDs
• PCB: 2, Green
• RGB Led Light
• LM3914: operation from 0°C to 70°C

Package Includes:

1 x DC 3V-12V DIY Kit RGB LED Flashing FED-201 Audio Spectrum Indicator LED Flashing Display

Product Description :

Passive infrared (PIR) sensors use a pair of pyroelectric sensors to detect heat energy in the surrounding environment. The Pyroelectric infrared sensor anti-theft circuit is composed of pyroelectric infrared sensor PIR, integrated operational amplifier LM393, 110 alarm circuit and starting delay circuit. The circuit can be protect against theft. When the family leaves bedroom, switch K1 is closed, the circuit begins to work . As long as  someone enters the room for a period of time, it will sound the alarm. Passive Infrared Radiation (PIR) sensor detects the change in infrared radiation of warm blooded moving object in its detection range.

Specification:

1. Sensitivity range: up to 20 feet (6 meters) 110° x 70° detection range.
2. Trigger: Repeat: L = Disable, H = enable
3. Sensing range: 120 °, within 7 m
4. Temperature:  15 ~ 70 °C
5. Input Voltage: DC 4.5-20V
6. Infrared Sensor with Control Circuit Board
7. Current: 50µA
8. Time Delay: 0.3 s – 200 s, custom up to 10 min

Features:

• Sensitivity range: up to 20 feet (6 meters) 110° x 70° detection range
• Complete with PIR, Motion Detection
• Dual Element Sensor with Low Noise and High Sensitivity
• Standard TTL Output

Package Includes:

1 x HC-SR501 PIR Based Human body sensing Anti-theft Alarm DIY Electronic kit for students

Product Description :

The concept behind this Lie Detector Circuit is that we assume when a person lies he kind of pumps up his anxiety level which makes him sweat and develop moisture on his skin. We then use this piece of the circuit to detect if there is moisture on his skin and based on the result we glow an LED, a green one for truth and red for a lie. Of course yes this cannot be claimed as a lie detector, but you can use this to play with your friends and have fun.

In this circuit, the resistor R6 is assumed to be the resistance of the finger. When no finger has been placed the value of the resistor is infinity. To simulate that condition Lets take the value to be 99999K. The green LED has turned on when no finger is placed because the base voltage of Q1 and Q2 is around 3.2 voltage and hence the transistor is on making the Green LED glow. At the same time since the Transistor Q2 is turned on, the base voltage across the transistor Q3 drops to be around 1.4V which will keep the transistor Q3 off and hence the Red LED is turned off.

Now let’s assume we have placed our finger across the resistor R4 and hence the value of R6 falls to 50 ohms. This will affect the value of resistor R4 and hence the red LED glows. Now the voltage drop across resistor R4 is less and hence the base voltage of Transistor Q1 and Q2 is almost 0V as shown above. This will keep them turned off and thus the Green LED will not glow. But since the transistor Q2 is off the entire supply voltage gets divided between the resistor R1 and the base of Q3. This makes the base voltage of Q3 to be 3V which is enough to turn it on. You can fine-tune the base voltage a bit more by using the potentiometer also. If the transistor Q3 is turned on the Red LED will also glow.

Note: This Circuit is unassembled. you have to assemble it by yourself

Features:

• Easy Assembly of the circuit
• Red Green LED for Truth and False indication

Package Includes:

1 x Lie Detector kit (Unassembled)

Product Description :

If you are a 90’s kid you may have played a Small handy Tetris Brick Game with multiple games like building blocks, snake, racing game, fire tank, etc. With this Orange – DIY Electronic MCU Dot Matrix Game Kit, You can build your own same brick game which runs on USB 5V power. All you need is little knowledge of soldering the component on PCB and you can build your own brick game.

We have added this is DIY Electronic MCU Computer Game Machine for Dot Matrix Game Kit For students who want to learn to solder and assemble the component on PCB.  The Kit has a 16×8 Dot-matrix Display to play games, Pre-programmed MCU IC, Push button for a game console, and other components, You will surely get a good experience for building this interesting handy game console for playing games.

Note: This latest kit comes with QFN SMD package IC (shown in Image) which needs the SMD soldering 

Features:

• All copper mini USB, 3-bit mini digital tube
• Golden PCB looks more exquisite
• STC12C5A60S2 high-speed IC
• Humanized keypad arrangement

Specification:

1. Dot-matrix Display Size: 16×8.
2. Display Dot Size: 3mm
3. Buzzer: 12mm 5V passive.
4. Supply Voltage: : 5V-100mA.
5. PCB Colour: Golden.
6. Button Size: 12mm
7. Dimensions (L x W x H) mm: 100 x 72 x 10
8. Weight (gm): 50

Package Includes:

1 x DIY Electronic MCU Computer Game Machine for Dot Matrix Game Kit

Product Description :

We use DC Motors in many systems in our day to day life. For example, CPU fans, fume extinguishers, toy cars etc. are all DC Motors that are operated by DC power supply. Most of the time we will have to adjust the speed of the motors as per our requirement.

A CPU Fan, for example, must be operated at high speed when the CPU is performing heavy tasks like games or video editing. But for normal usage like editing documents, the speed of the fan can be reduced. Although some systems have an automatic adjustment system for fan speed, not all systems possess this functionality. So, we will have to adjust the speed of the DC Motor ourselves occasionally.

In this circuit, the DC motor is operated by a 555 integrated circuit. The IC 555 in this circuit is being operated in astable mode, which produces continuous HIGH and LOW pulses. In this mode, the 555 IC can be used as a pulse width modulator with a few small adjustments to the circuit. The frequency of operation of the circuit is provided by the passive parameters of resistances and capacitors attached to it.

Pinout:

• Pin 1 of 555 is connected to GND. Pins 8 and 4 are connected to V
  Supply.

• Pins 6 and 2 are short and a 100nF Capacitor is connected between Pin
  2 and GND. The wiper pin of the POT is connected to Pin 3 of 555. Two
  Schottky diodes (1N5819) are connected to the other two pins of the
  POT as shown in the circuit diagram.
• The common point of the diodes is connected to Pin 2. Pin 7 is pulled
  high with the help of a 10KΩ Resistor. The Gate terminal of the MOSFET
  is connected to Pin 7 of 555. The motor is connected between 12V
  Supply and Drain of MOSFET while the Source of MOSFET is connected
  to GND.

Application:

• To control the speed of the motor efficiently

Package Includes:

1 x DIY LM555 Based Motor Speed Controller

Product Description :

Testing the continuity of a circuit is an essential step when comes to debugging hardware. Hardware debugging can be a real pain when we are not equipped with the proper tools and devices to handle it. This Continuity tester circuit will provide a cheap and efficient solution for debugging problems. The above circuit is capable of checking the connectivity that is electrical conduction path between two points.

This circuit uses a Red LED and a buzzer to indicate there is an electrical path established between two points. The entire circuit can be powered by a simple 5-volt battery. A simple NPN transistor 2N2222 forms the base of this above circuit. This transistor was used as a switch to both the LED and buzzer connected to it.

Probes are nothing but a conducting medium (wire) that helps to test the conductivity between two points. When probes are placed between two points in a circuit if the two points are not internally connected in the hardware there will be no electrical path which in turn keeps the transistor in an OFF state. So the buzzer and LED remains in an off state indicating there is no conductivity between the two points.

When probes are placed between two points where there is an internal connection that is an electrical path for current flow the transistor will be turned on. This will activate the LED and Buzzer which will act as an indication for continuity between the points to the user. Cost, size and easy usage are the main advantages of this circuit.

Pinout:

1. This circuit uses a Red LED and a buzzer to indicate there is an electrical path established between two points. The entire circuit can be powered by a simple 5-volt battery. A simple NPN transistor 2N2222 forms the base of this above circuit. This transistor was used as a switch to both the LED and buzzer connected to it.
2. Probes are nothing but a conducting medium (wire) that helps to test the conductivity between two points. When probes are placed between two points in a circuit if the two points are not internally connected in the hardware there will be no electrical path which in turn keeps the transistor in an OFF state. So the buzzer and LED remains in an off state indicating there is no conductivity between the two points.
3. When probes are placed between two points where there is an internal connection that is an electrical path for current flow the transistor will be turned on. This will activate the LED and Buzzer which will act as an indication for continuity between the points to the user. Cost, size and easy usage are the main advantages of this circuit

Application:

• To test the circuit continuity and detect faults in the circuit

Package Includes:

1 x DIY Continuity Tester

Features:

• Easy to use
• Easy to Soldered
• Affordable cost
• Good Quality PCB
• Comes with all the components

Package Includes:

1 x Electronic Acoustic Clap Control Switch DIY Kit Sound Sensor Electronic Circuit DIY Suit Integrated PCB Module

Product Description :

Teach your child how to assemble the toy rather than break down the assembled one. This 6 in 1 Educational Solar Kit is made to Build Robot Toy Car Plane Puppy Airboat Windmill This ‘do it yourself kit’ is a great beginner’s introduction to solar power technology and the end result is your very own little robot.

There are 6 different ways to build it, so you could have a robot dog one minute, or a boat for your bath the next. Teaches basic solar powered principles and how solar power can be utilized, whilst promoting environmental awareness. The kit provides a full set of plastic parts, solar panels, and all necessary instructions and components to create the 6 different models.

1. Airboat
2. Windmill
3. Robot Puppy
4. Solar Car/Tank
5. Plane
6. Revolving Plane

Recommended for ages 6 to 10 and upwards.

Features:

1. DIY school kit for kids
2. Easy to assemble as no tools are required to assemble
3. The solar kit will improve the analytical and critical thinking of your young ones
4. Motivates the children to learn the concept of energy getting converted from one form to another

Package Includes:

1 x 6 in 1 DIY Solar Powered Windmill Puppy Airboat Plane Tank Robot Learning Toy Kit

Product Description :

The Educational 6 in 1 Solar Energy Kit Game for kids. This is very unique and learning game for kids. This all-in-one package teaches kids to assemble, build and learn about robotics and engineering. This toy game is enabled with a solar panel which gives it the unique quality of running on solar power. The toy is designed in such a manner that the components can be assembled in 6 different working robot models with the same components. All of this in just one package. Now you can make your own working robot- A solar robot, solar skate boat, solar windmill, solar helicopter etc. This is an alternative source of energy to make your children aware of tech gadgets in a fun way.

Features:

1. Excellent addition to a home-school curriculum
2. This solar-powered robot can be transformed into 6 different robot
3. Two levels of building skill levels so the beginner and experienced robot builder will be equally engaged.

Specifications:

1. Batteries Required: ‎No
2. Color: ‎BLUE
3. Product Dimensions: ‎28 x 5 x 25 cm
4. Item Weight: ‎350 g
5. Total Robots can be build: 6

Package Includes:

1 x 6 in 1 Rechargeable Solar Power DIY Robot Kit

Product Description :

Are you having trouble finding ways to entertain your children at home and motivate them to learn new skills that will be valuable to their future at the same time? Then, meet EDU: BIT Training & Project Kit for micro: bit..!

Learning with this kit can make your kids coding understanding at another level. They will experience how their code works on physically on-board rather than on the computer simulator. Additionally, EDU: BIT can help them to understand basic electronics component and their working which is very foremost while learning to code for their future

EDU: BIT is an educational toy designed with the purpose of simplifying STEM education and empower children with coding habilities, though a series of creative, hands-on activities. It consists of a PCB with multiple interesting components, such as LED’s (in all forms and shapes, even a matrix of them), motors, a potentiometer, push-buttons, a sound sensor, a piezo buzzer, and even cables, everything you need to connect the circuits.

The PCB is very well thought-out, avoiding the need for messy wires that come with breadboard projects, and some incredible attention to detail, containing even LED indicators for all the I/O pins. Besides, it is snappable, so that the sensors and the other components can be used separately on other projects and supports up to 2 DC motors and 3 servo motors.

This kit comes with the fully illustrated guide book, in the book, there are sections with flowcharts that show how to “break the code”, in a cartoon-ish style that seems very appealing. The coding itself is provided by building blocks, providing a high-level representation of the underlying Javascript or Python. This is where an adult can aid the learning process of their children, by making sure they are taking a glance at the language and engaging with it, not just dragging and dropping the block code. Speaking of engaging, the interface seems easy to use and suitable for kids.

Package Includes:

1 x EDU: BIT Training & Project Kit for Micro: Bit

Product Description :

Build the DIY LED Christmas tree and gift it to your friend or family. This acrylic Christmas tree is a cool DIY project for holiday decoration. The Christmas tree is made of 3 pieces of PCB shape, and in order to confirm the Christmas holiday theme, the PCB adds some different & funny Christmas patterns to increase the festival spirit.

A total of 37pcs colorful LED are distributed evenly across the Christmas tree, and by an MCU to control the LED display, a total of 8 kinds of recycling display effect and Christmas music at the same time with 8 Christmas music looping playing. The base of the Christmas tree is made of acrylic sheet, which is beautiful and convenient. There is a small switch on the base that opens the switch to work and closes to turn off the light and music.

Features:

• 8 kinds of colorful LED display effects
• Shining LED Christmas trees with 8 kinds of Christmas music
• A great DIY Christmas gift for the electronic enthusiast and DIY enthusiast
• With some funny Christmas patterns on the PCB
• All using DIP components to solder, easy to make, and suitable for beginners

Package Includes:

1 x DC 5V Operated Colorful Christmas LED Tree DIY kit with Acrylic Case

Kit Includes:

3 x 1K Metal Film Resistor

1 x  2.2K Metal Film Resistor

3 x  10K Metal Film Resistor

3 x 47uF 16V Electrolytic Capacitor

19p x3mm White LED

3 x S9014 Transistor TO-92

3 x Designed and Printed PCBs

3 x 1K Metal Film Resistor

3 x 10K Metal Film Resistor

3 x 47uF 16V Electrolytic Capacitor

1 x 3mm White LED

3 x S9014 Transistor TO-92

1 x PCB CTR-30B

1 x Self-Locking Switch

1 x 3.5mm DC Power Socket

1 x USB to MINI USB Cable

1 x Fitting Nut-bolt set

1 x Acrylic case set to cover tree

Product Description :

These are the parts for DIY Firefly Photosensitive Robot and all parts are provided in a Paper box. Battery is not included.

Features:

• Easy setup
• Affordable cost
• Good quality

Package Includes:

1 x DIY Firefly Photosensitive Robot Accessories Kit

Product Description :

DIY Creeping Tiny Gecko is a handmade DIY creeping gecko technology model puzzle toy, baby DIY parts package, need their own assembly, installation is simple, provide detailed graphic installation instructions, battery-owned, beneficial to young people’s brain development and growth, whether children Or adults are deeply loved! The product uses two AA batteries, not including the battery!

Note: For shipment Limitations battery is not included in the package. 

Features:

• Installation is simple
• Provide detailed graphic installation instructions
• The battery is not included

Package Includes:

1 x DIY Creeping Tiny Gecko L95*W64*H45mm(Drive by Wire control)（without Battery)

1 x Assembly Building User Manual

Product Description :

You May know Potatoes as a Good source of potassium but did you know they can be used to power an alarm clock. The two potatoes allow you to generate enough electricity to run a digital Clock. Just push the Zinc And Copper electrodes into the potatoes causing an Oxidation/Reduction reaction that is converted to low voltage.

Features:

• The Potato Clock uses a pair of ordinary spuds to power a digital clock. This kit includes a digital clock, wires, and prongs two potatoes are all that’s needed to create a working clock
• This kit is ideal for young science enthusiasts and offers a valuable lesson on the transformative power of green science
• No batteries required
• It does not include potatoes. Watch your child’s delight and sense of accomplishment with the clock they create; Turn the kids onto the notion of leaving a smaller car

Package Includes:

1 x Digital clock with wires

1 x Connecting wires

1 x transparent tapes

1 x Copper and zinc strips

2 x pots

1 x Instruction manual

Product Description :

Are you looking for a toy gift for kids? This Wind Power Car Windmill Educational Toy Kit will be a good choice for you. Generated by wind power, it is unpolluted and environmentally friendly. It can help your kids learn knowledge about wind power generation and new energy sources. It can also improve the kids’ imagination, intelligence, and hand-on ability, cultivate environmental protection consciousness. Learn through playing.

Features:

• Easy to assemble, no need for tools
• No battery or any power required
• Wind power car toy, unpolluted and environmentally friendly
• Help kids learn knowledge about wind power generation and new energy source
• Improve the kids’ imagination, intelligence, and hand-on ability, cultivate environmental protection consciousness

Package Includes:

1 x DIY Wind Power Car Academy Educational Kit

Product Description :

Hey Electronics DIY geek are you searching for something exciting to build to fulfill your next DIY glut.  Here is a new DIY 3D 8S Music Light Cube Kit 8x8x8 Music Spectrum LED Electronic DIY Kit. This is a DIY kit with lots of work to do so you need to have some knowledge of electronics and ability a lot of soldering and should have enough patience to build this amazing 3D animation cube.

To help you in this project I have found the total assembly guide of this project on Instructable Circuits  Click Here 

Four key functions:

K1 key: Enter the mode selection, day, night mode control
K2 key: Enter the 3D8 PC mode (press the K1 key to be effective after power on)
K3 key: Enter 42 kinds of offline animation mode (press the K1 key to be effective after power on)
K4 key: Enter 14 kinds of off-line audio mode (press the K1 key to be effective after power on)

Three music keys features:

S1 key: Enter the music playback / stop control
S2 key: Enter the previous song / volume decrease control
S3 key: Enter the next song / volume increase control

Circuit design:

STC12C5A60S2 74HC245 74HC138 74HC595N
1. Integrated STC12C5A60S2 high-speed 1T microcontroller
2. 74HC245 buffer driver (cascade connection)
3. 5A high-current MOS tube driver chip (to solve the uneven brightness)
4. High-speed scanning chip and serial control cascade chip
5. Use a professional MP3 music chip
6. Use professional power amplifier chip 8002B

There are two ways to modify the pattern:

1. Modify the program (difficult, you need to understand programming)
2. PC computer software direct manipulation of the light cubic

Note:

1. Some parts in the kit may vary from the images shown, in terms of the shape of an LED or cable color but not to worry it won’t affect your project in any way.
2. The acrylic case Shown in the image is not included in the package you have to buy it separately

Specifications and Features:

1. Built-in 3W amplifier 3W high-quality speaker
2. Can be inserted TF memory card to play music
3. Can be inserted U disk to play music
4. Through the audio line input and output music
5. Built-in MP3 music, the volume can be adjusted
6. Built-in music can be controlled by a button on the next song
7. Built-in 42 kinds of off-line stunning animation (plug in the electricity can run animation)
8. Built-in 14 kinds of offline dynamic audio animation (dance with music)
9. 3D8 on the machine mode (control animation)
10. 13D8 on the machine music mode
11. Infrared remote control function
12. Night, daytime control mode
13. PWM breathing light mode
14. Switch on the mainboard automatic detection mode
15. Photoresistor automatic dimming function (need to expand by yourself)
16. Shell size: 233 * 161 * 161mm
17. PCB board: 150 * 150mm
18. Input voltage: 5V / 5V charger
19. Current: 1A-2A (2A better)

Package Includes:

1 x DIY 3D 8S Music Light Cube Kit 8x8x8 Music Spectrum LED Electronic DIY Kit

Kit  Includes:

1 x PCB Baseboard  

1 x IR Wireless Remote Control (Battery Included)

1 x USB-A to 5 mm Male DC cable to power the Cube-100cm

1 x 3.5mm Male to 3.5mm Male  Audio Cable-30cm 

1 x USB to serial TTL interface Module to program the cube

1 x 3 Line Hookup wire, jumper wire

1 x 50 pin female headers

1 x Screws and standoffs set

1 x RGB Square shape  2 x 5 x 7 mm LEDs-512pcs.

2 x 50 pin Female Berg Pin-Straight.

Product Description :

This is the 5V Electronic Hourglass (Timer Clock), DIY Kit, to know more about Hourglass in deep in the format of electronic Kit, This kit is very interesting and easy to assemble, it is knowledgeable to know about the hourglass, Electronic Hourglass This DIY Kit is best for kids to learn about hourglass & good to build schools and college projects.
You will know how the Hourglass Is working in the form of an Electronic DIY Kit, The IC is pre-programmed for the Hourglass Working format, you can set time by using the Push button, This electronic Hourglass Kit Follows the Actual process of normal Hourglass, But this is the advance version of the regular hourglass in the electronic DIY Kit.

Features: 

• Double Layer PCB Board
• PCB Board: 84 x 40
• Electronic Timer Clock
• Easy to Assemble

Specifications: 

1. Model: Electronic Hourglass
2. Voltage: 5V
3. Current: 1.5A
4. Led Color: Blue
5. Pre Programmed IC to the Hourglass (Timer Clock)
6. Quantity of Led: 57 Led in Pack
7. PCB Type: Double Layer
8. Color: Green
9. Operating Temperature:-25-85 Celsius
10. PCB Size: 84 x 40mm
11. Weight: 20g

Package Includes:

1 x  PCB Board
1 x Logical IC
1 x 57 Led Lights
1 x DC Connector jack
1 x Toggle Switch
1 x Push-Pull Button
1 x Capacitor

Product Description :

This L9110 Fan Module Fire Fighting Robot for Arduino controls the rotation direction of the motor, hence the fan. Designed with the mounting hole, compatible with servo motor control.

The module bows out the flame of light in the 20cm distance. It is an essential part of firefighting robot development.

It equips quality and high-efficiency propeller.

Connections

1. VCC ↔ 5V,
2. GND ↔ GND,
3. INA ↔ 9,
4. INB ↔ 8,

Package Includes:

1 x L9110 Fan Module

1 x Propeller set

Product Description :

This DIY LED Music Spectrum Display Kit is an LED lamp equalizer board that can change with the rhythm of the music. This approximately 1cm bigger than credit card in size LED music spectrum DIY kit with white color PCB printed with all component structure.

There is a total of 131 SMD LEDs with three different colors in 11 rows and 12 columns. Because there are too many LEDs, manual welding takes a lot of time, and the MCU pin is a little dense, so to weld, the LEDs and MCU you need have a micro-component soldering setup and little expertise to do the soldering.

The kit also comes with an Acrylic transparent case to keep all assembly in one case with the access to speaker sound and connection ports.

Here I have found the Blog where they guided how to build this project with steps. CLICK HERE

Specifications:

1. Operating voltage: 5V USB power supply
2. Signal access mode: 3.5 audio line input audio signal
3. Installation: DIY welding assembly
4. Dimensions: 108 x 70 x 16mm (Length x high x thickness)
5. Weight: 130g (including housing); 67g (excluding housing)

Package Includes:

1 x DIY LED Music Spectrum Display Kit

Product Description :

This DIY Educational Early Learning Wind Colorful Car Toy is the highest form of research This colorful building block can help your boy or girl encourage creativity, brain development, and critical thinking. This creative assembling toy can provide hours of unlimited creative work.

When playing with this educational toy kit, it develops color and shape recognition, imagination and creativity, fine motor skills, maneuverability, ability to think and solve problems, structural elements, and design skills. This is an excellent brain game that can improve your intelligence.

Give the try to your kid to build this car by themself. If they don’t crack this challenge user guide will help then stepwise building the car

Great for parties, barbecues, camping, or spending a good day in the sun. Create an experience that you and your child will always remember.

Note: Batteries are not included in the kit 

Package Includes:

1 x DIY Educational Early Learning Wind Colorful Car Toy