A character LCD display can be a good way to visually output information from your Raspberry Pi. 16×2 alphanumeric LCD modules are cheap and there are loads of
An LCD screen can makes your simple Arduino projects look a lot cooler. A typical Arduino TFT LCD touch screen can cost around £20 from Adafruit for instance.
In robotics projects there are needs to detect obstacle such as a wall. The famous Roomba, for instance, has wall sensors that detects obstacles and thus prevents it
Non-contact infrared thermometers are widely used in medical and industrial application. In medical applications, digital thermometers have been replacing mercury stick thermometers due to more convenient measurements and
