DolphinLabs
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A heartbeat detector is an essential device for monitoring heart health, providing real-time data about a person’s pulse rate. Whether in a hospital, gym, or a DIY electronics project, it demonstrates how biomedical signals can be measured and processed using sensors and electronics. It’s a valuable tool for both personal health awareness and professional medical diagnostics.
₹450.00 -
A Light Activated Motor Controller using IC 555 is a simple electronic circuit that turns a motor ON or OFF based on the presence or absence of light. It uses a LDR (Light Dependent Resistor) as a light sensor and the 555 timer IC in a comparator mode, along with an LED to indicate the motor’s status.
₹280.00 -
A Morse Code Generator is an electronic project designed to convert text input into Morse code signals using Arduino, a keypad, and a buzzer. Morse code is a method of encoding text characters as sequences of dots and dashes, widely used in communication systems, especially in emergency signaling and amateur radio. This project demonstrates signal encoding, microcontroller programming, and interactive electronics.
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A NOR gate using transistors is a basic digital logic circuit that outputs HIGH (1) only when all inputs are LOW (0). It’s built by combining an OR gate followed by a NOT gate, using simple NPN transistors.
₹150.00 -
A NOT gate (or inverter) using a transistor is a simple digital logic circuit that outputs the opposite of the input signal. If the input is HIGH (1), the output is LOW (0), and vice versa. It’s built using a single NPN transistor and a few passive components.
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An OR gate using transistors is a basic logic circuit built using NPN transistors that performs the logical OR function. It gives a high output when at least one input is high. This is a fundamental building block in digital electronics and can be implemented using discrete components like transistors and resistors.
₹145.00 -
Photo phobic robot will sense the light and will try to move away from light. On the contrary photo phobic is exactly opposite where it does not follow the light or more precisely it avoids and goes to places where there is less light
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₹1,250.00 -
A Rain Sensor is an electronic device that detects the presence of rain or water droplets and triggers a response — such as activating an alarm, switching off a window motor, or sending a signal to a controller.
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- A rain alert system with an LCD display and buzzer, controlled by an 8051 microcontroller, is designed to detect rainfall and provide real-time notifications. The system uses a rain sensor to detect moisture or rainfall, and the microcontroller processes the sensor data. When rain is detected, the 8051 triggers a buzzer to alert the user audibly and displays the rain status on an LCD screen.
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A Rain Detection System using Arduino, a rain sensor, and a buzzer that sounds an alert when water droplets or rain are detected.
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A Reaction Time Game is an interactive electronic project designed to measure a user’s response speed. Using an Arduino, keypad, buzzer, and LCD, the system tests how quickly a player can respond to a visual or auditory signal. This project is widely used in educational setups, gaming, and psychology experiments to study reflexes and reaction times.
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An RGB LED is a light-emitting diode that combines Red, Green, and Blue LEDs in a single package. By adjusting the brightness of each color, it can produce millions of colors, making it ideal for decorative lighting, displays, and indicators.
₹140.00
