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50 of the most important Raspberry Pi Sensors and Components
Hardware & GPIO, Projects
Hardware & GPIO, Projects

50 of the most important Raspberry Pi Sensors and Components

Felix - 22. January 2016

One of the many advantages of the Raspberry Pi is that it is possible to connect almost all standard Arduino and Raspberry Pi sensors and components to the dhtvarious GPIOs. Moreover you can evaluate and / or process the values with programs and other software. This accessory can be used in projects such as Smart […]

Setting up Raspberry Pi 3 Wi-Fi and Bluetooth
First Steps
First Steps

Setting up Raspberry Pi 3 Wi-Fi and Bluetooth

Felix - 3. March 2019

The Raspberry Pi 3 Model B has an integrated Wi-Fi and Bluetooth adapter. You can set up the Raspberry Pi 3 Wi-Fi on the desktop, as well as on the console. With the same price as the predecessor models, you can save the money for a USB adapter with a Raspberry Pi 3 and ideally […]

Connect a Raspberry Pi Keypad – Code Lock
Hardware & GPIO
Hardware & GPIO

Connect a Raspberry Pi Keypad – Code Lock

Felix - 17. February 2019

For the Arduino and Raspberry Pi there are some keypad matrixes that can be connected and read relatively easily. Similar to the numpad on a keyboard, these keypads have 3×4 or 4×4 keys. These modules can be used, for example, as code locks or for the construction of a small pocket calculator. With help of […]

Raspberry Pi Web Server Installation Part 6 – DNS Server via No-IP
Webserver
Webserver

Raspberry Pi Web Server Installation Part 6 – DNS Server via No-IP

Felix - 1. February 2019

Part 6 of the web server installation is about making the server available outside of the local network using a DNS server (such as No-IP, DynDNS).

Read Capacitive Soil Moisture Sensor DFROBOT Gravity on the Raspberry Pi
Hardware & GPIO
Hardware & GPIO

Read Capacitive Soil Moisture Sensor DFROBOT Gravity on the Raspberry Pi

Felix - 27. January 2019

In the field of Raspberry Pi soil moisture measurement, there are resistive and capacitive sensors, which each have advantages and disadvantages. The innovative Raspberry Pi casting machine / DFROBOT Gravity or “Giess-o-Mat” sensor provides a permanently accurate capacitive measurement, which a.o. in our Raspberry Pi greenhouse can be very interesting. This tutorial is about the structure […]

Expand Raspberry Pi GPIOs with I2C Port Expander
Hardware & GPIO
Hardware & GPIO

Expand Raspberry Pi GPIOs with I2C Port Expander

Felix - 1. December 2018

If you have several smaller or one larger project, you will soon discover that the GPIO pins of the Raspberry are fastly becoming too little. For all of you, this tutorial will show you how to use an I2C Port Expander to easily multiply the GPIO pins many times over.

Raspberry Pi – Build your own UPS (Uninterruptible Power Supply)
Hardware & GPIO, Projects
Hardware & GPIO, Projects

Raspberry Pi – Build your own UPS (Uninterruptible Power Supply)

Felix - 2. September 2018

In some applications, it is important that the Pi continues to be powered in the event of a power outage. If something is written on the SD card at the moment of power interruption, it is possible that the image will become corrupt and thus unusable. A UPS (Uninterruptible Power Supply) ensures that if a […]

How to use Photoresistors (Brightness / Light Sensor) with a Raspberry Pi
Hardware & GPIO
Hardware & GPIO

How to use Photoresistors (Brightness / Light Sensor) with a Raspberry Pi

Felix - 16. July 2018

To use, for example, a weather station, it is important to know the brightness. With a Raspberry Pi light sensor (photoresistor/brightness sensor), it is very easy to determine a value, which can say, for example, if it is day, twilight or night. In turn, projects could be implemented to control the (exterior) lights, which turn […]

How to build a Raspberry Pi Radio Transmitter
Projects, Software
Projects, Software

How to build a Raspberry Pi Radio Transmitter

Felix - 28. June 2018

The Raspberry Pi can be used pretty much for any conceivable application – as well as a radio transmitter. Frequencies from 1Mhz to 250Mhz can be used, including the usual radio frequencies between 88 and 108Mhz. Depending on the position and antenna, the signal can be transmitted up to 100 meters. In this tutorial, I […]

Install Windows 10 IoT on the Raspberry Pi
First Steps, Software
First Steps, Software

Install Windows 10 IoT on the Raspberry Pi

Felix - 28. June 2018

With the release of the Raspberry Pi 2, Microsoft had announced they will provide a version of Windows 10 for the Pi. This has happened now. According to Microsoft, this is only possible with the PC version of Win 10, but it also works on Windows 8.1, as I show in this tutorial. Windows 10 […]

Measuring Soil Moisture with the Raspberry Pi
Hardware & GPIO
Hardware & GPIO

Measuring Soil Moisture with the Raspberry Pi

Felix - 24. June 2018

There are some sensors for the Raspberry Pi that can measure humidity, temperature and other values. Nevertheless, these modules are almost exclusively suitable for the air and not intended for use in the earth. For some projects, such as an automatic plant supply, the moisture of the soil must be measured, then, e.g. refilled with […]

Installing OpenCV on the Raspberry Pi
Projects, Software
Projects, Software

Installing OpenCV on the Raspberry Pi

Felix - 24. June 2018

Anyone who has dealt with image processing in relation to the Raspberry Pi will sooner or later come across the OpenCV library. It provides many very useful features such as face recognition, the creation of depth maps (stereo vision, optical flow), text recognition or even for machine learning. In addition, OpenCV (Open Source Computer Vision) […]

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