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Control stepper motor with Raspberry Pi over Web

Raspberry Pi has number of general purpose pins available for connecting different external devices like sensors, relays and so on. It is also possible to control different actuators like electric motor with the appropriate driver between Raspberry Pi and motor. One interesting group of motors are stepper motors which are brushless synchronous elec [...]

Connect DS18B20 sensors to Raspberry Pi

Digital temperature sensor DS18B20 are very popular among hobbyist because they are quite cheap, provide satisfactory precision for number of applications and can be easily interfaced with microcontrollers or Raspberry Pi. In this article we are going to explain how to periodically measure temperature with DS18B20 sensors that are attached to Raspb [...]

Raspberry Pi CPU temperature visualization

In this article we are going to explain how to constantly read CPU temperature of your Raspberry Pi and send the readings to a web page. The communication between server and client web page is accomplished by using websocket protocol. We used Tornado, an asynchronous webserver for python to make websocket connections. To visualize the readings we [...]

Make your Raspberry Pi more secure

Raspberry Pi is very common device in DIY Internet-of-Things projects. However, by connecting it to the outside world it becomes a target for different kinds of attacks. With a little effort you can greatly enhance the security of your little fellow. Check them out.

Shutdown/reboot Raspberry Pi with a push button

Don't know how to interface a simple mechanical push button to your Raspberry Pi? Check out this article where we use a push button for Raspberry Pi shutdown (long press) or Raspberry Pi restart (short press).

Home monitoring system

We have added the first IoT project. It is a DIY home monitoring system which is based upon Arduino nodes with sensors and NRF24L01 chips for wireless comunication with a main node. The main node collects the measurements from all wireless sensor nodes and send them over serial connection to the Raspberry Pi where measurements are stored into MySQL [...]

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