Archive

Posts Tagged ‘how’

NAS using Raspberry Pi and Open Media Vault

April 24th, 2017 No comments

Raspberry Pi NASA simple easy to use Network Attached Storage by using Raspberry Pi and Open Media Vault open source NAS solution. The video demonstrates all detail about the Open Media vault.  In the make, I have used 2x 1 Tb HDD with  Raspberry Pi.

 

Links :

OMV OS Image Download: bit.ly/2q4ee4u

Win32 Disk Imager: bit.ly/2n3Lfwg
SD Formatter Windows: bit.ly/2ofKfFL Read more…

Measure Distance using Ultrasonic Sensor HC – SR04 | Pi4J | JAVA | Raspberry Pi

January 16th, 2017 No comments

HC - SR04This is a simple tutorial showing how to interface HC – SR04  ultrasonic ranging module with Raspberry Pi to measure distance using JAVA. Ultrasonic ranging module HC – SR04 provides 2cm – 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules include ultrasonic transmitters, receiver and control circuit. The basic principle of work:

(1) Using IO trigger for at least 10us high-level signal,
(2) The Module automatically sends eight 40 kHz and detect whether there is a
pulse signal back.
(3) IF the signal back, through high level, time of high output IO duration is the time from sending ultrasonic to returning.
Read more…