Raspberry Pi Heartbeat / Pulse measuring
GPIO, Projects
6145 views19
GPIO, Projects
6145 views19

Raspberry Pi Heartbeat / Pulse measuring

Felix - 23. March 2017

Not only with fitness watches, but also with the Raspberry Pi it is possible to measure pulse / heart rates. With a small module – the Raspberry Pi pulse sensor – you can easily measure your own pulse and thus monitor permanently your health condition. This sensor can also be used in mobile Raspberry Pi […]

Configure and read out the Raspberry Pi gas sensor (MQ-X)
GPIO
5515 views26
GPIO
5515 views26

Configure and read out the Raspberry Pi gas sensor (MQ-X)

Felix - 17. March 2017

Sensors are necessary to detect the components of the air. These are used e.g. in smoke detectors. However, instructions for using these gas sensors at the Raspberry Pi are rare, which is why in this tutorial the general use of such MQ modules at the Raspberry Pi is shown. Thus, e.g. smoke detectors or air […]

50 of the most important Raspberry Pi Sensors and Components
GPIO, Projects
17942 views5
GPIO, Projects
17942 views5

50 of the most important Raspberry Pi Sensors and Components

Felix - 27. November 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 various 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 […]

Raspberry Pi Stepper Motor Control with L293D / ULN2003A
GPIO
6567 views12
GPIO
6567 views12

Raspberry Pi Stepper Motor Control with L293D / ULN2003A

Felix - 14. November 2015

Stepper motors are ideal for applications where it is necessary to know the angle of rotation, for example in robotics. Unlike a normal motor, stepper motors can control the steps individually and can therefore detect the exact position. For easy controlling such a motor, a driver IC like the L293D or the ULN2003 are needed. […]

Using a Raspberry Pi distance sensor (ultrasonic sensor HC-SR04)
GPIO
15415 views36
GPIO
15415 views36

Using a Raspberry Pi distance sensor (ultrasonic sensor HC-SR04)

Felix - 11. November 2015

For many (outdoor) projects a distance measurement is necessary or advantageous. These small modules are available starting at 1-2 bucks and can measure the distance up to 4-5 meters by ultrasound and are suprisingly accurate. This tutorial shows the connection and control.

Let Raspberry Pi’s communicate with each other per 433MHz wireless signals
GPIO, Projects
4499 views1
GPIO, Projects
4499 views1

Let Raspberry Pi’s communicate with each other per 433MHz wireless signals

Felix - 26. October 2015

Maybe some of you thought about how to let some RaspberryPi’s communicate with each other wirelessly. For this purpose small 433MHz modules are ideal, which are already available for a few bucks. Therefore in this tutorial I want to show how two (or more) RaspberryPi’s can “talk” with each other. But do not worry, if […]

Installing WiringPi (and pin allocation) – Raspberry Pi
GPIO
1397 views
GPIO
1397 views

Installing WiringPi (and pin allocation) – Raspberry Pi

Felix - 25. October 2015

WiringPi is a library that is used by many applications on the Raspberry but is not available by default. Especially many examples from the Arduino (C ++ code) can be performed easily on the RaspberryPi. To do so, this valuable library was written.

Raspberry Pi LED Matrix Library – Installation for multiline m x n MAX7219 LED Matrices
General, GPIO
2574 views23
General, GPIO
2574 views23

Raspberry Pi LED Matrix Library – Installation for multiline m x n MAX7219 LED Matrices

Felix - 12. August 2014

In this Tutorial I will show you how to use the library for multilined MAX7219 Matrices I wrote (improved and extended version of JonA1961’s MAX7219array https://github.com/JonA1961/MAX7219array )