This is a fun little demo I threw together in an evening. I’m running Raspbian “wheezy”. Wire up a switch (or switches) to your GPIO port. I have switches connected to GPIO pins 22, 23, and 24. Install RPIO. sudo apt-get install python-setuptools sudo easy_install -U RPIO Install wakeonlan. sudo apt-get install wakeonlan Check that …
Physical WakeOnLan button with Raspberry Pi and Python Continue Reading
Last Friday I got some spare time (finally!) and, with the help and tools of my friend Alfredo, we placed a button in the RaspberryPi case so, when I push it, a custom command its executed on the RaspberryPi, like for example, a clean system shutdown. We mainly followed this post, but used a different …
Since the Raspberry Pi foundation decided to leave out an off button to safely shutdown the Raspberry pi, I’ll show you a simple method I came up with to build one, so there are no more excuses for yanking the power cable out of your Pi! This method uses no extra components apart from a …
Almost all wireless technologies use some kind of association process to enable devices to join the network. Such a process is typically initiated by pressing a button on the network controller and by subsequently pressing another button on the device to associate. Software gateways, like Dog, cannot naturally support this press-and-join interaction and the association …
Hardware button and LED to control association in wireless networks Continue Reading
Hi there. This post is not going to be on JavaScript but it will be a bit more centered on the Raspberry Pi and what I did today. As pointed out in an old blog post, I’m working on a software that creates streams of data and pass them through a topology. As data sink, …
This is my first Raspberry Pi. I’ve bought it as an XBMC home-theater box (and a “we’ll see later on what else”). One of the annoying things I’ve found out right away was that it didn’t have a reset button. You can politely shut down the thing from software, but how do you turn it …
Cheap solderless reset button for Raspberry Pi Continue Reading
This instructable will show how to trigger a webcam using Raspberry and a push button. A bash script run at startup and it launch a Python script that survey the GPIO port. When the button is pressed, a “fswebcam” command runs. Step 1: Materials – Raspberry Pi 2 Model B – Webcam (Make sure your …
Trigger a Webcam with a button and Raspberry Pi Continue Reading
So we now have a traffic light/pelican (Tux!) crossing simulator. The 2nd Red LED is connected to wiringPi pin 3, (GPIO-22), and the 2nd Green LED is connected to wiringPi pin 4, (GPIO-23). Test them as before with the gpio command, e.g. for i in 0 1 2 3 4 ; do gpio mode $i …
The Raspberry Pi, just sitting there, asking to be played with… As I looked over my existing projects I noticed this sad little lone R-Pi sitting on my desk. Some time ago I bought it. Played with it a bit, installed NOOB image on the SD card, connected I2C LCD text display to it and …
Raspberry Pi, I2C LCD screen and Safe Power Down button Continue Reading
In this sample, we connect a push button to your Raspberry Pi 2/MinnowBoard Max and use it to control an LED. We use GPIO interrupts to detect when the button is pressed and toggle the LED in response. This is a headed sample, so please ensure that your device is in headed mode by running …
