RPi & Pi4J: Tutorial 2: GPIO Output

In the first installment of this series, we saw how we could quickly set up a Java development environment on the RPi, and wrote a simple program to demonstrate how easy it is to configure GPIO using Pi4J.

Let us now dive a little deeper into Pi4J, and understand how we can use the GPIO pins as output pins.

Read moreRPi & Pi4J: Tutorial 2: GPIO Output

Source Code is Available

All the source code for my Raspberry Pi / Java / Pi4J tutorials are available from my BitBucket Repository.

If you want to download a zip file of the most current release, click here. If you want to clone the repository, please use:

[code language=”bash” light=”true”]
$ git clone https://bitbucket.org/calpilot/rpi-tutorials.git

All the code is licensed under the MIT License.

Categories IoT

French (not Death) Valley Flyout: March 31, 2013

Talk about the need to be flexible when flying – well, more than when flying a commercial airline, at least!

David Werntz, one of the instructors at the Caltech Aero Club, had tried to arrange a flyout to the Furnace Creek Airport (L06) in Death Valley, CA. Over the last few days, we had noticed that the weather in and around the SoCal area was steadily deteriorating, and last night we realized from the weather forecasts that not only was the cloud cover over SoCal going to make it difficult for us but that the winds in the desert were going to be picking up pretty bad. For example, current (at the time of this post) winds at Edwards Air Force Base are from the West-Southwest (240 degrees) 19 knots with gusts of up to 25 knots.

Read moreFrench (not Death) Valley Flyout: March 31, 2013