During the daily device driver development routine, we often need to understand the behavior of the GPIO pins to understand if there is I2C traffic or if our driver is handling the coming interrupts and so on. Sometimes is not enough to mount the debugfs interfaces and read out the values or cat/grep the /proc/interrupts […]
Debug GPIO with LED Read More »
Do you want to relive your N64 childhood days or like older games and want to play Zork? How are we going to do this you say? Well, this tutorial is for you! We are going to build a RetroPie Gaming station using a Raspberry Pi. It will emulate almost every gaming system from DOS
Raspberry Pi RetroPie Gaming Station (Optimized for N64) Read More »
The Raspberry pi is a mini computer which is designed in a single board with all the essential components required for running an operating system. The Raspberrypi board is powerful enough to run large operating systems like Linux, Mac and Windows. Linux operating systems especially Ubuntu is preferred for all kind of programming and development.
How to Read Inputs Using Signal in Raspberry Pi Read More »
You know some basic Python or you want to learn some and you want to make a website, a web server, a web crawler, etc. – But where do you start? Services like Heliohost or Vlexofree are great for free Python website hosting, but they are not always reliable, have a position queue, or have
Python Web Server for your Raspberry Pi Read More »
The Raspberry pi is a device which uses the Broadcom controller chip which is a SoC (System on Chip). This SoC has the powerful ARM11 processor which runs on 700 MHz at its core. This powerful processor and the controller having the peripherals like timers, interrupt controller, GPIO, PCM / I2S, DMA controller, I2C, SPI
How to Use Timer in Raspberry Pi Read More »
When we have a meeting in a meeting room, we need to connect our laptop to a projector to show our desktop. But sometimes, several persons need to show their desktop, they need to change their laptop. This is complex and waste some time. Currently, we have some mobile project, they are can be run
Connect Raspberry Pi to Projector or TV Read More »
Typically as a programmer you will work with data on disk, and if you are lucky you will draw pictures on the screen. This is in contrast to physical computing which allows you as a programmer to work with data sensed in from the real world and to control devices that move in the real
Raspberry Pi Sensor and Actuator Control Read More »
Abstract Directly connect a Lego Mindstorms NXT Ultrasonic Sensor to a Raspberry Pi. A TCA9517 I2C bus buffer and an additional GPIO pin for SCL is necessary. A short C++ program to read the measured distance is provided. Introduction Raspberry Pi (Pi), despite some shortcomings, is definitely my favorite SBC. By far the biggest community
How to connect a Lego Mindstorms NXT Ultrasonic Sensor to the Raspberry Pi Read More »
“Approaching” middle age, wanting an excuse to play with a Raspberry Pi, and having great memories of 80s games (mainly spectrum, sega master system, neo geo, and Atari ST) i decided to build a mini arcade machine / retro emulator. Hopefully some of the things i learnt and successes (as well as mistakes) i made
Bartop Mini Retro Arcade – Raspberry Pi and Customised Icade Read More »
After my dad and I got an LED to dim using Pulse Width Modulation on my Raspberry Pi, we decided to try to spin a servo motor. We had a bunch of old servo motors on my robotics team at school so I used one of those, but I didn’t have any information on the
Servo Motor with Raspberry Pi and PWM Read More »
