Personal Blog
Personal Blog
So I was writing a library for the I2C MCP23017 IO expander to use on the Arduino platform. Everything went fine until I stumbled onto a problem. The way I have written the library is by using C++ class that…
USBasp is an open-source in-circuit or in-system programmer for AVR microcontroller platform. It is widely available and is a cheap alternative to official programmers from Atmel USBasp was created by Thomas Fischl and was initially released in 2005. The programmer…
എല്ലാവരും കൈകൾ കഴുകുകയാണ് ഇപ്പോൾ. മഹാവ്…
മലയാളത്തിലെ ആദ്യത്തെ കൃത്രിമബുദ്ധി…
Fingerprints are one of the many unique biometric signatures we can use to identify people very accurately. But just by holding someone’s hand and staring at their fingers can’t be practical [grins]; we’re not good at it. But computers are…
A real-time clock (RTC) is a circuit that keeps track of time by counting the precise oscillations of a crystal oscillator of known frequency. For example, a typical frequency of a quartz crystal oscillator used in RTC applications is 32.768 kHz. That frequency is not…
When using any STM32 microcontrollers, GPIOs need to be initialized before you can use them in the application program. The GPIO peripheral is configured and controlled using a set of registers. Multiple registers are assigned to each port available in an STM32…
When it comes to buying parts for your 3D printer or RC cars or even modules and sensors for your Arduino, Indian makers do not have that many choices that offer quality products for reasonable prices, compared to what available…
This is a small story about how I found the mysterious culprit that was hindering with one of my experiments and baffled me for two whole days. The story goes like this : I was trying to setup a serial…
There will be times when you have to store large amount of log data and other information for your Arduino project, for example a GPS logger. The EEPROM memory of all available microcontrollers are limited in size. The solution is to use flash memories.…
When it comes to communicating with a microcontroller, the word “serial” just pops up into mind if you’re familiar with microcontrollers. Three major communication protocols/interfaces used by microcontrollers are UART, SPI and I2C (TWI). Universal Asynchronous Receiver Transmitter (UART) as its name says, is an asynchronous serial communication…
I‘ve heard people including Tesla Motors’ CEO, Elon Musk, say that we’re in a dream or simulation, matrix or something, that the universe as a whole is big computer simulation. Really? I’ve always wondered about such a possibility and the reason why people…