How to Interface RFM69HCW RF Module with Arduino for Wireless Communication
The RFM69HCW is a cheap easy to use radio module that operates in the unlicensed ISM (Industry, Science and Medicine) band similar to the nRF24L01 RF Module that we have used in previous projects. It can be used to communicate between two modules or can be configured as a Mesh Network to communicate among hundreds of modules that makes it a perfect choice for building inexpensive short-range wireless networks for sensors used in home automation and other data acquisition projects.
In this DIY session we are going to use a 32×16 LED dot Matrix display module which is also known as P10 LED Display Module to display a scrolling text by using Arduino UNO. P10 modules can be cascaded to build any size of the advertising board.
check out the full project here: https://circuitdigest.com/microcontroller-projects/digital-notice-board-using-p10-led-matrix-display-and-arduino
For more EE projects, articles, news and resource, visit: https://circuitdigest.com
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:
So in this project, we build an Acoustic Home Automation Device in which we will be able to control this smart device without using any wireless connections like Wi-Fi or Bluetooth. We will use Actions for Google and Dialogflow to build a test application for our Google Assistant to make it play encoded audio (Chirp). This audio will then be captured by the Arduino nano BLE sense board running the Chirp Arduino Program, based on the message encoded in the data the Arduino board could perform any action like toggling an AC load controlling the RGB LED, etc. It might sound like a lot, but it is relatively simple.
Home automation has become very common now days and people are using IoT to automate everything in their home. Here in this tutorial we will use a Real Amazon Echo dot speaker and create a custom skill to control AC home appliances like lights, Fans, TVs, Sockets using an Amazon Echo dot Speaker. Here we will use Arduino UNO and an ESP8266-01 Wi-Fi module to connect Echo dot speaker with AC appliances. After this tutorial, you will be able to control any appliance though Alexa.
Ever since I started to work with the ESP Wi-Fi Modules, I always wanted to build a smart Wi-Fi socket that enables me to control my AC loads wirelessly through smart phone. While products like these are already available in the market, like the popular Moko WiFi Smart Plug or Sonoff, they are a bit expensive and on top of that it doesn’t give you the joy of building your own. So, in this project I will show you how you can build your very own Smart plug using ESP8266 Wi-Fi module. The device that we built can easily be plugged into any exiting AC socket and then on the other end you can connect the actual load simply by plugging it into this socket on our device. After that just keep the main switch of your socket always on, and you can control your Load directly from your Smartphone. Fun right? Check out the project at below link ….
DIY Pick and Place Robotic Arm using ARM7-LPC2148 ARM Microcontroller
In this tutorial we will use a 3D printed robotic ARM that was built by following the procedure in thingiverse. The ARM uses 4 servo motor for robotic ARM movement. If you do not have a printer, you can also build your arm with simple cardboards like we built for our Arduino Robotic Arm Project. For inspiration you can also refer to the Record and Play Robotic Arm that we built earlier using Arduino.
Check out the full DIY project here: https://circuitdigest.com/microcontroller-projects/diy-robotic-arm-using-lpc2148-microcontroller
In this tutorial we will cover how to build a 12v SMPS circuit that would convert AC mains power to 12V DC with a maximum current rating of 1.25A. This circuit can be used to power small loads or even be adapted into a charger to charge you lead-acid and lithium batteries.
Find here the DIY article: https://circuitdigest.com/electronic-circuits/12v-smps-power-supply-circuit-design-on-pcb