A SmartThings shield is used to interface with the SmartThings hub and cloud. The Arduino needs to be capable of receiving and transmitting through two serial ports (one for the IT-100 and another for ...

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 Pinout [NC] = Not connected on an Arduino Uno/Mega R3 D0 - [NC] ...

What doesn’t this Arduino Mega shield have? Ponder that as you realize that it doesn’t just attach itself to the pin headers, but uses every single one of the mega’s connections. This isn ...