[Zappie]

Hi, 

Something i'm really missing is the possebillity to insert a calibrated external voltage reference. Very easy to add i think!

Regards, Zappie

Where you think that having it, will significantly improve the readings?

Where minivollts are readout from analog ports, The internal reference is stable, but still has about a +/- 10% error. To improve accuracy  of the analog readings i mostly use little calibrated voltage reference modules. They have almost the same size as the transmitter module.

Regards, Zappie