According to the Staff Memo taped to the window of the Nurses' Station (above), you aren't going to find the keycode to its door simply written down somewhere in the hospital. This is technically ...

Here’s a fun build from [RootSaid] that is suitable for people just getting started with microcontrollers and robotics — an Arduino-controlled two-wheeled robot. The video assumes you already have one ...

Instead of a third version, Pokemon Sword and Shield has expansions. So far, we know of The Isle of Armor Expansion and The Crown Tundra Expansion. The page explains how the expansion pass works, how ...

The BNC Shield for Arduino is a very simple way to reliably connect an Arduino to one or more BNC cables. Especially in science, it is very common to use an Arduino to trigger a camera or behavioral ...

The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...

A lot of US business phone numbers have letters in them so they can be more easily remembered. Your iPhone has a number and letter keypad; each number corresponds to three or four numbers. To dial ...