Low-Cost DC Motor Direction Controller with Fast Brake using 2 Relays

Low-Cost DC Motor Direction Controller with Fast Brake using 2 Relays

The project presented here is a low-cost easy to use DC brushed motor direction controller with fast-brake, the project was built using two 12V Relays, 2 x BJT transistors, and 2 x tactile switches. The two LEDs are provided to display the motor direction, 2 tactile switch controls...

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Arduino 4-Digit 0.5″ Common Cathode 7 Segment Display Module

Arduino 4-Digit 0.5″ Common Cathode 7 Segment Display Module

This project will help you to easily develop an Arduino compatible project that requires 4 x -7Segment 0.5" displays. The project consists of an Atmega328 microcontroller, 4 x BC847 NPN transistors to drive the common cathode displays. All displays are used in multiplexing...

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Arduino 3-Digit 0.5″ Common Cathode 7 Segment Display Module

Arduino 3-Digit 0.5″ Common Cathode 7 Segment Display Module

This project will help you to easily develop an Arduino compatible project that requires 3 x 7-Segment 0.5" displays. These are common cathode displays that use multiplexed configuration, BC847 transistor drives 3 x common cathodes, all display segments are connected to the...

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Arduino 2-Digit 0.5″ Common Cathode 7 Segment Display Module

Arduino 2-Digit 0.5″ Common Cathode 7 Segment Display Module

This is an Arduino compatible board for creating 2 Digit Display projects. The circuit operates with 5V DC, Connector CN1 is provided for bootloader programming and Arduino firmware upload. A new Atmega328 chip requires a bootloader and Arduino firmware programming, Connector CN1...

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600W – 230VAC – High Voltage DC Motor Speed Controller – Heater Controller – Lamp/LED Dimmer

600W – 230VAC – High Voltage DC Motor Speed Controller – Heater Controller – Lamp/LED Dimmer

This is a very powerful DC Motor speed controller for DC motors up to 330V DC and current up to 2A. Basically, the project is a high voltage PWM source with adjustable frequency and adjustable PWM duty cycle range 0 to 99%.  The board has been designed considering many applications...

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3 Channel Analog Video Splitter with Video Amplifier

3 Channel Analog Video Splitter with Video Amplifier

If you need to drive multiple video gadgets or monitors from a single video signal source then this board is the right choice for you. This is a 3-channel video splitter with an amplifier and the circuit is built using discrete components. Q2 and Q1 act as a signal amplifier, Q3 act...

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Arduino Nano- Switching ON/OFF Appliances Using Infra-Red Remote (Two Channel)

Arduino Nano- Switching ON/OFF Appliances Using Infra-Red Remote (Two Channel)

The project presented here is a two-channel infrared remote ON/OFF switch that can be used to control home appliances, Lights, Fans, Water Pumps, Aquarium pumps, Ovens, Heaters, etc. This open-source project contains 2 x SSR (Solid State Relay), Arduino Nano, and TSOP1838 infrared...

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3.317
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Analog Light Sensor + Light Sensitive Switch using OPT101

Analog Light Sensor + Light Sensitive Switch using OPT101

You may have seen many light-sensitive switch circuits based on an LDR sensor. Usually, the sensitivity of the LDR based light sensor is poor. We wanted a very sensitive light switch hence we decided to make a circuit based on a light sensor rather than LDR. After a little research on...

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