Henryk Konsek and Arek Jurasz wanted to see how fast the Raspberry Pi 2 was when it acted as part of the toolchain of an Internet of Things set-up using Camel and MQTT messages. I’ll let them explain: We decided to create…
Category: Programming
Coffee predictions with the Raspberry Pi and Python
Paul Weeks is pretty much obsessed with coffee. He decided that his local coffee shop could use face recognition technology and the FitBit API to work out a) what someone’s favourite coffee was and b) how strong it should be…
Simple code and diagram to control PWM on the Raspberry Pi
Over on his blog, Eric is doing a great line in simple examples for controlling the GPIO pins of the Pi. This time, he covers PWM on the Pi by giving an example of an LED which changes brightness depending…
Simple read/write of the Raspberry Pi GPIO
A blogger called Eric has written up a simple piece of code, and an accompanying Fritzing circuit diagram, of how to read a switch input and turn an LED on and off. It’s a simple example, but does show you…
Neopixel LED temperature gauge with Raspberry Pi
Ismail Uddin of scienceexposure.com has written an in-depth tutorial in which he uses a thermistor to track temperature changes and a Neopixel ring to display a temperature gauge. It uses various libraries and work already out there and contains instructions as…
Control the Unicorn HAT with the Skywriter HAT on the Raspberry Pi
I’ve been playing around with a recently-purchased Unicorn HAT and I was just wondering if it was possible to do this! Lo-and-behold this blog post came up in a general search for Unicorn HAT stuff. Sandy MacDonald has used a…
Piezo ring tones with the Raspberry Pi
Roberto Marquez has written a tutorial over on the Adafruit site to generate ring tones on the Pi and play them via a simple piezo buzzer. Nice beginners project that anyone should be able to do. Read it here.
Raspberry Pi television schedule helper for the visually impaired
Hackaday.io user Chewable Drapery (Dean Walker)’s grandfather-in-law is 92 and is gradually losing his sight. In particular, he has real problems reading the on-screen television guide. So, Chewable has constructed a box and a controller, called EVA, using a Raspberry Pi…
Solve the Monty Hall problem with Python
Trevor Appleton has written another of his great tutorials in which he takes you through a Python program. This time it’s to solve the “three doors” or “Monty Hall” problem. You are presented with three doors and have to try…
PiCamera worksheets for the Raspberry Pi
Stephen Blythe has built on work done by Carl Monk to create some worksheets for the camera module. The worksheets use the picamera Python library and are very simple and easy-to-follow. Take a look here.