Category: Circuit

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How to build a Simple Solar Powered Automatic Garden Light

For those who have a keen interest in gardening, a garden light would provide an option to admire the beauty of their plants even during the night time. These lights will normally be placed inside the garden, far from electrical outlets because it is not a good idea to run wires through your garden soil which will be wet and toiled most of the time. This is where Solar-powered garden lights come into the picture. These lights will have a battery that will be charged through a solar panel in the day time and during the night time the energy from the battery will be used to power the lights and the cycle repeats

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Automatic Bottle Filling System using Arduino

Here we are going to design a prototype for Automatic Bottle Filling Machine using Arduino Uno, conveyor belt, solenoid valve, IR sensor, and Stepper motor. Belt conveyor is driven by a stepper motor at a constant preset speed. The stepper motor will keep driving the belt until an IR sensor detects the presence of a bottle on the belt. We used the IR sensor as an external trigger. So whenever the IR sensor goes high it sends a trigger to Arduino to stop the motor and turn on the solenoid valve.

check out the full project here:

Overcurrent Protection Circuit using Op-Amp

Interfacing VL6180 ToF Range Finder Sensor with Arduino for Distance Measurement

VL6180 differs from other distance sensors as it uses a precise clock to measure the time taken by the light to reflect back from any surface. This gives VL6180 a benefit over other sensors because it’s more accurate and immune to noise.

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Simple Wireless Power Transmission Circuit to Glow an LED
The Wireless Electricity Transfer concept is not new. It was first demonstrated by Nikola Tesla in the year 1890. Nikola Tesla introduced electrodynamics induction or resonant inductive coupling by lighting up three light bulbs from the distance of 60 feet from the power source. We have also built a Mini Tesla Coil to transfer the energy.

Check out the circuit here:

Operational Amplifier Integrator Circuit: Construction, Working and Applications

In simple Op-Amp applications, the output is proportional to the input amplitude. But when op-amp is configured as an integrator, the duration of the input signal is also considered. Therefore, an op-amp based integrator can perform mathematical integration with respect to time. The integrator produces an output voltage across the op-amp, which is directly proportional to the integral of the input voltage; therefore the output is dependent on the input voltage over a period of time.

Here is the full tutorial:

Simple H-Bridge Motor Driver Circuit using MOSFET
At the outset driving a motor might seems like an easy task – just hook the motor up to the appropriate voltage rail and it will start rotating. But this is not the perfect way to drive a motor especially when there are other components involved in the circuit. Here we will discuss one of the most commonly used and efficient way to drive DC motors – H-Bridge circuit:

#Project – #HC05 #Bluetooth Module Interfacing with #ESP8266 to Control an LED from #Android App: 

Interfacing 433Mhz RF Module with STM32F103C8

Here in this project we interface a 433MHz RF wireless module with STM32F103C8 microcontroller. The project is divided into two parts. The transmitter will be interfaced with STM32 and the receiver will be interfaced with Arduino UNO. There will be different circuit diagram and sketches for both transmitting as well receiving part.

Check out the full project on Circuit Digest: