HackFFM-Duino Chime: Unterschied zwischen den Versionen
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DCEM (Diskussion | Beiträge) (→Features) |
DCEM (Diskussion | Beiträge) (→Features) |
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Choose between 8bit Stereo or 16bit mono Sound. | Choose between 8bit Stereo or 16bit mono Sound. | ||
| − | + | Board size: 15 x 30mm(0.6 x 1.2 inches) | |
== License == | == License == | ||
Version vom 5. September 2014, 20:57 Uhr
by: DCEM
Inhaltsverzeichnis
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.
Design Files
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.
Board size: 15 x 30mm(0.6 x 1.2 inches)
License
License
Licensing CC v4.0 Share-Alike (http://creativecommons.org/licenses/by-sa/4.0/)
