Computing stuff tied to the physical world

Plug shield on Arduino Mega

In AVR, Hardware on Feb 7, 2010 at 00:01

The Plug Shield can also be used on an Arduino Mega:


Note the two extra wire jumpers, since the I2C interface is on pins 20 and 21 on the Mega board.

The above has an RTC plug and an LCD plug hooked up, so let’s to set up a simple clock with this – and use it to demonstrate the brand-new RTClib along the way:

Screen shot 2010-02-05 at 17.22.01.png

I’ve omitted the details of the Wire coding, but you can get the full sketch here.

  1. Hi,

    The link “” at the bottom of this page does not work……

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