My first introduction to microcontrollers was via the Arduino platform. But I soon started digging a little deeper and got into (8-bit) AVR...Read More

I am slightly (just a teeny bit, I assure you) obsessed with my desk drawer and the arrangement of the contents therein. When I am in dire need of my...Read More

Last year, I had written a rather ponderous article on the Device part of the IoT triad consisting of Device, Mobile and Cloud. This time, I want...Read More

I like Atmel tinyAVRs because they are tiny computers that I can (almost) wrap my head around. The Atmel ATtiny4/5/9/10 are the cheapest...Read More

This is a brief account of my four day visit in January 2016 to Shenzhen, China. Due to my unfamiliarity with the language and brevity of the trip, this...Read More

I was introduced to Atmel tinyAVRs a few years ago, soon after I started playing around with the Arduino platform. Now, here was a computer...Read More

Diwali (or deepavali, the Indian festival of lights) is just around the corner, and in addition to stuffing myself with unhealthy snacks and scaring...Read More

In this project, we will build a two-wheeled robot based on the Nordic nRF51822 BLE SoC. Motor control for the two wheels of the robot will...Read More

I wanted to create a simple project to teach soldering and electronics to kids (10+ years) and beginners. I first thought of a simple two transistor...Read More

In this project, we will control two motors over BLE using the Nordic nRF51-DK. To do this, we will use a motor driver based on the Toshiba...Read More

I have learned much from the work of others. And much of that learning came about because those people put in the effort to document their work on the...Read More

In this project, we will control an RGB LED using the Nordic nRF51-DK over BLE. We will make use of PWM (Pulse Width Modulation) and NUS...Read More

In this project, we will talk to the popular ultrasonic distance sensor HC-SR04 using the Nordic nRF51-DK board, and transmit the distance information...Read More

Before you read further, please take a look at my previous article on nRF51-DK programming using GCC, since we’re going to use the same setup here....Read More

This is a short note on using the nRF51-DK to program an nRF51822 chip on an external board. So far I have (click to jump to section): 1. RedBearLab Nano...Read More

The nRF51822 is a very popular SoC (System on a Chip) which integrates BLE (Bluetooth Low Energy) with an ARM Cortex M0 CPU. For folks like myself...Read More

This is a short note on my attempt in 2013 to create an electronics kit meant for kids - a DIY motion sensing night lamp based on the good old...Read More

The Atmel ATmega32u4 gained popularity with its use in the Arduino Leonardo, due to the built-in USB support, which made an additional...Read More

Internet Of Things (IoT) implementations usually consist of three parts - the device itself, software that interacts with the device...Read More

There seems to be a deluge of cheap toys in my house, thanks to the kids. But on the upside, many of these have interesting electronics that are perfect...Read More

I was in Bhutan last December, and as we travelled to different locations, I kept wondering what the temperature and altitude was, and wished I had...Read More