After getting PWM (pulse-width modulation) to work with an RGB LED last week, I was trying to think of what else I could do with an LED that demonstrated changes in color as well as intensity. I’m not sure why – maybe it was because we lost power in our neighborhood recently – but I thought a flickering candle could be an interesting little challenge… Materials In order to test this out, you’ll need a few things. ...
Let’s recreate the Simon game of the 1980s using a Raspberry Pi and Sonic Pi!
Let’s learn how to flash an LED on the Raspberry Pi when someone sends us a new email.
I created a morse code generator before based on entering a string at the console. Now I extended it to generate a message by clicking a button.
Making the Pi blink an LED a few times is thrilling, but what about building something.. more? Let’s build a morse code transmitter!
Last summer, I found this “Smithsonian Motor-Works” set at a garage sale. Once built, it models a 4-stroke internal combustion engine. I’d shelved it for a rainy day and rediscovered it last weekend while cleaning the basement. Time for a little father/son bonding!
Let’s combine the SqlDataReader’s GetFieldValue and GetOrdinal methods into an extension method that lets us pass a column name and get back a specific type.
In WPF, a ListView allows for quite a bit of flexibility. Let’s take a look at filtering a ListView, using input being typed into a TextBox.