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Home automation with rpi-rf_send and rpi-rf_receive for 433MHz rc switches

So far, i’ve used the Python module pi-switch for controlling rc switches, but it is no longer maintained. rpi-rf is a very viable alternative. In this tutorial, you’ll use a 433MHz receiver with rpi-rf_receive for decoding the switching code for a common rc switch, then trigger that switch with a 433MHz sender and rpi-rf_send. Continue Reading

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BRX1000: autonomous RPi solar computer with MoPower for energy management

The small, lightweight, inexpensive and energy efficient Raspberry Pi is a great base for autonomous solar devices. In this tutorial, you’ll learn to build the simple solar computer BRX1000 with a Raspberry Pi, the official touch screen, a MoPower for energy management and an affordable solar setup. This allows for instance setting up an autonomous gaming station with RetroPie. Continue Reading

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Color mixer: control a RGB-LED-strip with the Raspberry Pi and the N-Channel-MOSFET IRLB8721

LED strip

RGB LED strips are cheaply available these days, e.g. 5 meters strip for around 13€ on Amazon. Together with a Raspberry Pi and a few more components you can light your home or car individually in amazing ambient colors. This tutorial shows how to build a LED color mixer. The circuit and code where tested on a Raspberry Pi 3, but it should work on all models without changes. Continue Reading