I’m back with another Instructable. Did you ever wonder what is an RFID or how does it work? If you have noticed in an office before, you would be probably aware of those RFID cards or Tags that would unlock specific doors depending on your access. Well let’s make a simple NodeMCU RFID reader using […]
MFRC522 RFID Reader Interfaced With NodeMCU Read More »
First off, this is written with Arduino and the Arduino IDE in mind. I will be referencing various Arduino sources and datasheets for AVR chips. Secondly, what does this really mean? Manipulation of port registers allow for lower-level and faster manipulation of the i/o pins of Arduino and on any ATTiny microchip. Why would you
ATTiny Port Manipulation (Part 1): PinMode() and DigitalWrite() Read More »
In this project I want to share my experiment on ATMEGA128 generating a simple tone, I have created 8 tones ( 1 octave )Let’s get started!! Step 1: Prepare the Components Let’s prepare the components, We need :1. Speaker, just buy the cheap one.2. ATMEGA1283. LM3863. Blue LCD4. ATMEGA8 debugger And let’s do the code
Create Yourself ATMEGA128 a Simple Tone Generator Read More »
So you wana learn how to programme a micro controller? This tutorial has been designed as a next step, following the fantastic tutorial ‘Ghetto Programming: Getting started with AVR microprocessor on the cheap.’ by The Real Elliot link you should read this before progressing onto this next step. Today my friends we are going to make a
Micro Controller Programming: Making a Set of Traffic Lights Read More »
Using an ESP32 or ESP8266 we can forecast weather by reading air pressure from a sensor such as the BOSCH BMP085/180 or BME280. Then by monitoring the changes in air pressure and categorising the changes thus: Rising quickly Rising Rising slowly Steady Falling slowly Falling Falling quickly And
ESP32/ESP8266 Weather Forecaster/Predictor Read More »
This is a sonic (sound-based), pocket-size measuring tool, accurate up to 3mm. It is useful for applications where you want to log the distances or find distances that are inaccessible, therefore measuring tapes, rulers, and callipers are out of the question! Since the ESP32 is such a tiny micro controller powered by a micro usb
ESP32: Pocket Size Distance Measuring and Logger Read More »
In this Instructable we will make an IoT scale! You might ask: “What in the world do I need an IoT scale for?”, and that is a good question! In truth, you probably don’t need one but you also don’t need a Tesla but you’d get one if you could 😛 But in all seriousness,
Control a hot water circulation pump. The hot water circulation pump used to work all the time. To save some energy at home it was necessary to control the pump cycles. The ESP8266 is an ideal platform to realize this kind of project. One of the IO ports is connected to a temperature sensor and
ESP 8266 Controlling Hot Water Circulation Pump Read More »
Why another spot welder project? Building a spot welder is one of the (arguably few) cases in which you can build something for a fraction of the price of the commercial version with comparable quality. And even if build-before-buy were not a winning strategy, it is a lot of fun! So I decided to embark
Spot Welder 1-2-3 Arduino Firmware Read More »
In this tutorial we will create a fully functional laser harp using IR sensors with a serial interface that will allow the user to change the tuning and tone of the instrument. This harp will be the 21st century remake of the age old instrument. The system was created using a Xilinx Zybo development board
Laser Harp Synthesizer on Zybo Board Read More »
