This tutorial is about a simple Traffic Light Circuit using the programmable GPIO Pins via Python. In the next tutorial, we will extend the circuit by a few functions (including an Input).
The most common form of 7-segment displays are “Common Cathode”, for which et al. the microchips MAX7219 and MAX7221 are intended. There are also “Common Anode”, which are usually a lot cheaper. However, these are not directly compatible with such a microchip. How it all works is shown in this tutorial. Anyone who wants to […]
In this tutorial, I want to show you how to set up and use a small infrared light barrier, which gives a signal as soon as the light barrier is interrupted. By traversing both photocells one behind the other, the speed can be measured.
This tutorial demonstrates how to automatically run scripts for text commands via Telegram after the installation on the Raspberry was covered in the previous tutorial. This allows you to, for example, easily query the status of your Pi’s on the go or simply perform actions remotely via your messenger.
Some of you know about the safer WhatsApp Alternative – Telegram. If you also want to send and receive Messages, Pictures and Videos on your Pi, this is the place for you. All you need is an additional Sim Card to receive the SMS. In a later tutorial, we will use receiving Messages to perform […]
Who has his Raspberry Pi running as a Server, etc., will quickly realize that the little giant can become very hot. To a certain extent, one can surely ignore this, but if the Pi is running day and night, you should pay attention to the temperature (especially in a housing). Since I also had this […]
Again and again, it happens that you install Programs, but do not start them automatically when booting. In order to use the Raspberry Pi autostart, all you need to do is to store the information in the /etc/rc.local file in the Linux system. This is, for example, the case with DNS service noip2. In the […]
In order for the Pi to be as flexible as possible, a Wifi connection is very advantageous. Of course, you need a Wifi Stick and have to configure everything, which is shown in this tutorial. The only thing needed is a one-time connection to the router with an Ethernet cable.
In this Tutorial, I’ll show you how to easily put an Operating System like Raspbian OS (Wheezy, Jessie, Stretch) or any other related Raspberry Pi OS on the SD Card.
For weather stations and similar projects, it is often important to determine the air pressure. How to determine the temperature and humidity with sensors has already been shown in previous tutorials. With the help of the barometer BMP180 the air pressure (in hPa / bar) can be determined via the I²C bus of the Raspberry […]
With the Raspberry Pi and some sensors, it is easy to measure the temperature without much effort. In addition, however, the humidity in certain situations or projects (such as a weather station) can be enlightening. Sensors such as the DHT11 and DHT22 are not only available for a few euros, but they can also measure […]