In a recent blog post on omzlo.com, [Alain] explains how they found a bug in the Arduino SAMD21 analogRead() code which causes the output to be offset by between 25 mV and 57 mV. For a 12-bit ADC ...

the output from the Arduino is the input to the circuit). Conversely, the comparator output and the connection to the Arduino’s analog converter (A0) are labeled nodes from the “Output and ...

[youtube http://www.youtube.com/watch?v=hhTNTPNs350&rel=0&color1=0xb1b1b1&color2=0xcfcfcf&feature=player_embedded&fs=1] Not a lot to say about this little hack but it ...

A new fully featured Arduino development board has been created called the Prestissimo Uno+ which is now available to back via Kickstarter with earlybird pledges available from just $20 ...