3D printed Stevenson screen

@Dimitrios commented the other day on my Funky+DHT22 post that my readings seem to have a lot of 99.9% relative humidity readouts and suggested that it may be due to the black box that I enclosed the project. I do have some holes drilled, but probably not enough to get decent air circulation: I compared…

Interfacing with Paradox home security system

I have a Paradox home security system and I have long wanted to interface with it. I am most interested in its status (armed, disarmed) and the zone statuses. I can use the alarm status to send myself SMS when the system becomes armed/disarmed or the alarm goes on. Zone statuses would provide me knowledge…

Low power serial keypad

I bought one of these keypads off ebay few days ago, and decided to try it out. These work pretty straight-forward, you have 8 pins – 4 for rows and 4 for columns. When you press a button, it creates contact between the respective row and column. Still, you need 8 pins to drive it,…

Raspberry Pi as IP webcam

I noticed this Instructable the other day and had to try it since I had an old USB web cam laying around. I found that the instructions contained some inaccuracies, here are my steps: sudo apt-get install motion sudo nano /etc/motion/motion.conf Locate and change: Daemon = OFF to ON webcam_localhost = ON to OFF webcam_port = desired…

Plotting my daily travel habbits

Now that I log my location and distance from home, I can visualize this data; Below is a 5-day log on my daily trips – I live around 20km away from the city: I am still not using this data in home automation, but plan to do so soon. Page views: 1063

emonGLCD

Glyn from OpenEnergyMonitor surprised me pleasantly the other day by sending me an emonGLCD unit to evaluate – thanks! Building it was easy, and an hour later I had it working. Quite nice piece of hardware, a must-have for home monitoring and automation projects. I will be doing customizations in the future and make blog posts…