HackFFM-Duino Chime: Unterschied zwischen den Versionen
Aus Hackerspace Ffm
DCEM (Diskussion | Beiträge) (→Motivation) |
DCEM (Diskussion | Beiträge) (→Features) |
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The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V. | The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V. | ||
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| + | Choose between 8bit Stereo or 16bit mono Sound. | ||
== License == | == License == | ||
Version vom 5. September 2014, 20:30 Uhr
Motivation
LeandraChristine needed a small solution for sound in a project. Since I was designing lots of PCB’s anyway I decided to also realize this one. Another requirement was fast responsiveness. The SimpleSDAudio-library from Tut provides just that. Tut helped quite a lot with the circuit design in this project.
Features
The board is carrying:
- Atmega328
- MAX9098306 3.7W stereo Class D amplifier
- SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply
- microSD-Card Slot
- 74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels)
The controller itself is running on 3.3V (because of the SD-Card). The supply voltage is 5V.
Choose between 8bit Stereo or 16bit mono Sound.
