raspberry pi Archive

Almost three years I published an article detailing how to remotely buzz yourself into an apartment building. In the time since, new technologies have made it even easier to interact with your home remotely. Below, I detail an updated remote door buzzer that works with mobile phones and even Apple Watches. Furthermore, the basic setup is extensible to lighting systems and any other action that can be controlled by a shell script.

Overview

The ultimate workflow is simple and is as follows:

  1. On your smartphone or Apple Watch, send a Yo to a custom-created recipient
  2. Your door buzzer will be activated

To achieve this, we’ll be using a custom-made circuit that electronically switches the door buzzer. To control the circuit remotely, we’ll be using a Raspberry Pi home server that will receive casually authenticated signals over the internet sent via the Yo app (https://dashboard.justyo.co/).

Required Gear

The following items will be used to create your phone-controlled door buzzer:

  • Raspberry Pi — Any Raspberry Pi model should work, but I’m using the Raspberry Pi Model B+. You’ll also need an SD card (micro SD in the case of the B+ model) with at least a few gigs of space, and all gear necessary

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It’s not too challenging to find a resistor through Google or on Amazon, but there are a few online retailers that reliably cater exclusively to makers and their projects. These sites not only sell Arduino, Raspberry Pis, and accessories, but they also help shoppers discover cool new projects by featuring interesting sensors, kits, and books. Below is my top five list (plus one) of great online retailers for electronics makers.

Spark Fun Electronics and Maker Shed
Spark Fun and Maker Shed are very similar sites – both worth checking for a given project. They both carry great curated selections of books, Arduino-related supplies, other components, Raspberry Pis, and kits. Noting its affiliation with Make Magazine, Maker Shed has more in the way of kits and educational materials while Spark Fun is perhaps stronger in components. Both are great sites with whom I’ve had very positive customer experiences.

Adafruit Industries
Adafruit grew as an electronics kit developer, but has grown into open source hardware development since that time – today they sell branded Arduino shields, and it recently developed the Arduino Micro in conjunction with Arduino. Its products include kits and components for Arduino, mbed, Raspberry

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