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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So far, i’ve used the Python module pi-switch for controlling rc switches, but it is no longer maintained.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

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RPi-Band: DrumHAT and PianoHAT simultaneously on a single Raspberry Pi

RPi-Band - Piano HAT

Two of the greatest Raspberry Pi hardware attachments (HATs) are the Piano HAT and the Drum HAT, both available on Pimoroni.com. The software coming with the HATs is close to plug&play and works fine, but only for one HAT at a time. The software presented in this post, RPi-Band, allows using both the Piano HAT and the Drum HAT simultaneously on a single Raspberry Pi. Continue Reading