I’ve had a Raspberry Pi since Christmas, but haven’t done much with it up till now. That’s all changed since I moved house. Getting to grips with a new central heating system, I find that (for reasons too dull to list here) I need to monitor and control it rather more flexibly than I can […]
This add-on board enables a Raspberry Pi B+, A+, or Pi 2 to drive a pair of brushed DC motors. Its dual MC33926 motor drivers operate from 5 V to 28 V and can deliver a continuous 3 A (5 A peak) per motor. The default pin mappings make it easy to get started using our provided software, but […]
A couple of months ago I got curious about PCB manufacuring, and ended up using Joe Walnes’ open-source PiCrust PCB design to test the process. I sent the ‘Gerber’ files off to a little cheap board house in China, and a few weeks later my boards arrived – and they actually worked! With my 100% PCB-related […]
Have you heard of #twitchPlaysPokemon? Well that was some of the inspiration behind this project #googleMowsMyLawn. This project was an idea that my brothers and I had and wanted to do for a little while. When StartFest had a hackathon, we were provided with the perfect opportunity to build it. The rules were simple: make […]
The BMP180 device is a digital barometric pressure sensor. This is available on a small module which provides access to the sensor via the I2C interface. This allows us to easily connect it to the Raspberry Pi with a minimum of wiring. My module is a small pcb measuring 15x13mm with a 5 pin header. […]
This post will be the first of a series of posts that will describe how to drive a 7-segment display from a Raspberry Pi, without any OS running in it. Today, I will talk about some important characteristics about 7-segment displays, how to wire things up, and another considerations that you ought to take into […]
Who remembers the Nokia 5110? If you’re too young to have had one, it was a great phone – a bit of a game changer some might say. The battery lasted a decade, it was tough as nails and one of the first mobiles to include swappable faceplates and the infamous ‘Snake’ game. 1998 was […]
Arduino has multiple shields and multiple expansion boards, the shields make prototyping with the Arduino a lot easier. A lot of people design custom shields to match their requirements. But in a raspberry pi has a very few number of shields, and a raspberry pi is a powerful device at a cheaper cost and enables […]
If you ever find yourself running out of GPIO pins on a RaspberryPi you can put multiple pushbutton switches on a single pin using this method. It sets a variable by timing the charging of a capacitor through a series of resistors with the switches between them. You will need a RaspberryPi, a breadboard, and […]
Aim of the project: In this project we have developed a platform to remotely control surveillance robot controlled over Ethernet. It will enable us to monitor the activities in the remote and sensitive areas such as naxalite areas and etc. In traditional security systems, monitoring devices are usually mounted on fixed locations. In such cases, […]
