White LED bulbs are commonplace in households by now, mostly due to their low power usage and high reliability. Crank up the ...

When traveling, it's wise to use your own charging block and plug into a standard electrical outlet, buy a USB data blocker ...

Abstract: This paper describes about designing a low-cost power-efficient construction of the lighting system in the form of a 3D cube (8×8×8) which can display different patterns, symbols, alphabets ...

Another feature that the R4 WiFi boasts is its 12x8 red LED matrix, which is readily programmable using the Arduino_LED_Matrix library. This feature can come in handy in various Arduino projects ...

The history of the transistor and similar types ... it produced a signal with the output power greater than the input. This led the pair to design and produce the first point-contact resistor ...

When the joystick is pressed, the voltage from capacitor C2 is applied to pins 2 and 6 via transistor T3 ... each associated with a respective LED. The source code is written in the Arduino IDE ...

Connect it to any digital pin of Arduino. S-GND is the ground pin of the pulse ... a potentiometer, and a transistor that drives the LED. Other than that, we have a JST connector for VCC, ground, and ...

Using and customizing the display is easy, with a specially written Arduino library and a dozen pre-made examples. Maker LED display also has Wi-Fi so it can connect to the internet to retrieve ...