D7 has PWM! (other not connected pins with a timer as well). The 16u2 pinout is the same for Arduino Uno/Mega. Keep in mind that the Leds have inverted logic. Writing LOW means turn them on. 16u2 ...

The Arduino Team presented some new products at Maker Faire this weekend. It’s a significant update. The Arduino UNO and Arduino Mega 2560 update ... power MOSFET, push button, LEDs and motor ...

In this tutorial, we learn about the SPI protocol and how to use it in Arduino. We will use SPI Protocol for communication between two Arduinos. Here one Arduino will act as Master and another one ...