Often you want to control modules with a higher voltage with the Raspberry Pi. For this purpose, relays can be used on the Raspberry Pi: The relay “switch” is utilized by means of a low-voltage pulse. Since the Pi only tolerates a maximum of 5V (the GPIOs even only 3.3V) without relays, there is the […]
There are some infrared distance sensors from the manufacturer Sharp, which can be operated very simply with the Raspberry Pi. There are different distance meters, which cover different distance ranges. These modules work similarly to laser distance meters, but with infrared light. There, bundled light is emitted by a transmitter and an analogue voltage is […]
The official Raspberry Pi camera module has the advantage that it doesn’t need any USB ports or GPIO pins and can be used directly via the CSI port. It is available with and without an infrared filter, which for example can be of advantage when shooting at night. This tutorial shows how to set up, […]
Often you want to be able to control (household) devices with a higher voltage with the Pi. Raspberry Pi wireless-controlled sockets are ideal for this because they are very easy to control and you do not have to interfere with the circuit. For that and many other projects, there are wireless sockets, as they can […]
In addition to stepper motors, there are also small and cheap servo motors. The control of Raspberry Pi servo motors is very simple and thanks to the small size and weight they are used in many areas. Unlike stepper motors, servomotors can be controlled with a single GPIO. In this tutorial, I’ll show an example of […]
While every smartphone has GPS, the Pi can also be converted into a GPS receiver with a cheap Raspberry Pi GPS module. In many outdoor applications, especially those that move (Car-PC, weather balloon, etc.), the exact position is a big advantage. Mobility is achieved with a battery pack or a USB power bank. In this […]
Due to its design, the PIR motion sensor module is very easy to use because it already has the components installed. Raspberry Pi motion detectors in home automation and/or outdoor applications (as a classic outdoor motion detector) are easier than ever to implement. I will show the commissioning in this tutorial.
Whoever is aiming for home automation will sooner or later certainly think about the wireless operation. The 433Mhz frequency is ideal for this because there are many cheap transmitters and receivers as well as a wide range of available libraries and scripts. In this tutorial, I want to show how to use a small handheld […]
Siri, Amazon Echo and “S Voice” are all voice recognition programs designed to make life easier. Even a Raspberry Pi voice control can be easily built by yourself. Because such a speech recognition is of course very beneficial for home automation. In this tutorial, I’ll show you how to digitize speech through a microphone, convert […]
Mainly in mobile applications, a static power supply is not always guaranteed or there is no outlet nearby. A Raspberry Pi battery pack or a mobile power supply is beneficial in many cases. In this tutorial, I want to show one way to operate the Pi using normal AA batteries or rechargeable batteries. Of course, […]
For some applications, such as games, a joystick can be useful or be even necessary. Since these usually work purely analogously, the signal has to be converted, which we do with the MCP3008 chip. Connecting and reading a joystick is shown in this tutorial.