Electronics projects, hobby circuit diagrams, college projects for students or electronics enthusiasts. Including detailed working explanation, pcb design and 100% working.

Home Automation using ESP8266 & Blynk App - Practical Implementation

Home Automation using ESP8266 & Blynk App – IoT

A home automation system is an automating the bulk of electronic and electrical tasks within a home. It uses a combination of hardware and software to enable control and management over appliances and devices within a home. Home automation not only refers to reduce human efforts but also energy efficiency and time saving. Here we are performing home automation by using ESP8266 – WiFi SoC and Blynk Playstore App. Components RequiredESP8266 470Ω Resistor LED Breadboard USB Cable Connecting Wires Android Phone with Blynk AppHardware Circuit Diagram Home-Automation-using-using-ESP8266-Blynk-App-Circuit-Diagram Circuit Diagram Explanation NodeMCU to 4- Channel Relay BoardConnect [...]

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Interfacing DHT11 Sensor with ESP8266 - Practical Implementation

Interfacing DHT11 Sensor with ESP8266

In this article, I am going to explain about interfacing of DHT11 sensor with ESP8266. For that we have to make only 3 connections between the DHT11 sensor and ESP8266. For the working demonstration we will be programing ESP8266 as a web server for displaying temperature and humidity in a web browser as per request. Components RequiredESP8266 DHT11 Sensor USB Cable Connecting WiresHardware Circuit Diagram Interfacing DHT11 Sensor with ESP8266 – Circuit Diagram ConnectionsDHT11 sensor (+) pin will be connected to 3.3V DHT11 sensor (-) pin will be connected [...]

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Automatic School College Bell using PIC Microcontroller

Automatic School / College Bell using PIC Microcontroller

Here we are sharing a fully automatic and configurable bell which can be used in schools and colleges. It is made using commonly available microcontroller and other components. Components RequiredPIC 18F4550 16×2 LCD Display DS1307 or DS3232 32.768 kHz Crystal 16 MHz Crystal 4.7K Resistor – 7 10K Resistor 10K Preset 22pF Capacitor – 2 100nF Capacitor 4×4 Keypad 680R Resistor LED – 1 3V CMOS Battery BC548 1N4148 Relay (5V/12V)Circuit Diagram Automatic College Bell using Microcontroller – Circuit Diagram How to connect the Bell ? Program The microcontroller program is written using MikroC Pro compiler. #define MENU_KEY 'D' #define SAVE_EXIT '*' #define [...]

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IoT Temperature Data Logger Using ESP8266 and LM35

IoT Temperature Data Logger Using ESP8266 and LM35

In this project, we are going to log and monitor temperature data over internet using ThingSpeak IoT server. And we can view the logged data and graph over time in their website. It is made using ESP8266 WiFi module and LM35 temperature sensor. ESP8266 WiFi chip reads the current temperature from LM35 using ADC and sends it to ThingSpeak server for live monitoring from anywhere in the world. Components RequiredESP8266 LM35 Breadboard Connecting WiresHardware Circuit Diagram LM 35 with ESP8266 – Circuit Diagram ConnectionsConnect 3.3V pin of ESP8266 [...]

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Digital Thermometer using LM35 Temperature Sensor and ESP8266 - Practical Implementation

Digital Thermometer using LM35 Sensor and ESP8266

In this project, we are going to monitor the current room temperature over internet using ESP8266 programmed as a web server. It is accomplished by establishing data communication between ESP8266 WiFi module and LM35 temperature sensor using ADC. Components RequiredESP8266 LM35 Breadboard Connecting WiresHardware Circuit Diagram LM 35 with ESP8266 – Circuit Diagram Circuit ConnectionConnect 3.3V pin of ESP8266 to first pin of LM35 Connect A0 pin of ESP8266 to second pin of LM35 Connect GND pin of ESP8266 to third pin of LM35LM35 An LM35 is a 3 pin temperature [...]

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Interfacing Moisture Sensor with Arduino

Interfacing Soil Moisture Sensor with Arduino

Introduction In this article, we are going to interface a Soil Moisture Sensor with Arduino Uno. We will measure the moisture content of soil in pot or farming field and by using this we can pour water into field based on preset values. This sensor measures the volumetric content of water inside the soil (based on resistance/conductivity) and gives the moisture level as output. The sensor is equipped with both analog and digital output, so it can be used in both [...]

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Interfacing HC-SR04 Ultrasonic Distance Sensor with ATmega32 Microcontroller

Introduction This project uses an ultrasonic sensor to indicate the distance of any object from it. Here we have made a setup based on microcontroller in which real time distance is sensed by an ultrasonic sensor and microcontroller displays measured distance on LCD display. Required ComponentsATmega 32 Microcontroller HC-SR04 Ultrasonic Distance Sensor 16×2 LCD Display 5V Power SupplyHardware Ultrasonic Distance Locator – Block Diagram Circuit Diagram Ultrasonic Distance Measurer – Circuit Diagram Circuit Description The overall circuit assembled on the breadboard contains three major components :ATmega 32 Microcontroller, Ultrasonic [...]

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Interfacing Rain Sensor with Arduino

In this article we are going to explain about interfacing Rain Sensor with Arduino. The rain sensor module is an easy tool for rain detection. It operates as a switch when raindrop falls through the raining board and also it measures rainfall intensity. The module features, a rain sensing board and the control board that is separate for more convenience, power indicator LED and an adjustable sensitivity though a potentiometer. Rain Sensor Module Raindrop sensor is basically a board on which [...]

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