This Whisker uses the NCP2820 to amplify audio. With more than 90% efficiency, this low-power amplifier will save the lifetime of your battery.
The Whisker Adapter TinyShield (ASD2022) incorporates level shifting and a local power supply to ensure proper and safe operation over the entire TinyDuino operating voltage range up to 5V.
To learn more about the TinyDuino Platform, click here
TinyDuino Power Requirements