VO2Max is an interesting concept that proposes that there is a natural limited ability to extract Oxygen nutrient out of the air and consume it. It is like the IQ of sports activities–some algorithm that tells you how gifted you are in doing a variety of athletic contests. It was worked on at the beginning […]
This project originated from a request of a friend. He asked me to build a so-called smile counter for their college dorm – a segmented display which can show a number. This number must increment every time someone pushed a button and should be memorized even if power goes out. The counter was counting smiles: […]
Using a dual 7-segment display, a DS18B20 temperature sensor and a couple of shift registers I figured that I could build a digital thermometer. Step 1: Temperature Sensor The sensor I’m using is the DS18B20, it’s a 3pin sensor that just requires a single input pin from the arduino. Multiple sensors can be hooked together, […]
With 2020 being the year of COVID, having a toddler that was stuck at home (especially during the winter) presented the need for, well, stuff to do. So, my wife and I decided to turn our basement into a play place for our little girl. We started by designing and building an indoor slide with […]
The String comparison operators, ==, !=,>, < ,>=, <= , and the functionsequals() and equalsIgoreCase() allow you to make alphabetic comparisons between Strings. They’re useful for sorting and alphabetizing, among other things. The operator == and the function equals() perform identically. It’s just a matter of which you prefer. So if (stringOne.equals(stringTwo)) { [Get Code] […]
In this pandemic it is important to take reasonable measures to reduce spreading viruses. A paper from 2019 found that louder voices spread more viruses (https://www.nature.com/articles/s41598-019-38808-z) [Asadi et al. 2019]. This simple project aims to remind people to not shout unnecessarily. This can be used in classrooms, meeting rooms or any other setting where people […]
This is a project in attempting to improve it predecessor “Freeform Arduino” by putting it in an enclosure and having it serve the similar purposes as “Palm Arduino Kit” and “Palm Arduino II” which I can carry it in my pocket and be available to use, and to connect to easy available power source specifically […]
Now a days we are spending a lot of time at home, studying and working virtualy, so why not to make our workspace greater with a custom and smart lighting system Arduino and Ws2812b LEDs based. Here I show you how build your Smart Desk LED Light that you can control with an IR remote […]
Hello and welcome back to another Instructable. In the previous two Instructables, I have shown you how I created PCB coils in Kicad using a Python script, covered the basics of an H bridge, and showed you how I will be using them to control the segments of the 7-segment mechanical display. Make sure you […]
Hello all! This instructable happens to be part 3 of my ESP series where I continue to experiment and explore the various features of the ESP 8266-01 board. In the first and second part of the series I have mentioned the wonderful capability of this little board to support I2C communication and also interfaced the […]
