HackFFM-Duino Chime: Unterschied zwischen den Versionen
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DCEM (Diskussion | Beiträge) |
DCEM (Diskussion | Beiträge) (→Motivation) |
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== Motivation == | == Motivation == | ||
| − | [[Benutzer:LeandraChristine|LeandraChristine]] needed a small solution for a project. Since I was designing lots of PCB’s anyway I decided to also realize this one. | + | [[Benutzer:LeandraChristine|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 responsive. The [[SimpleSDAudio]]-library from [[Benutzer:Tut|Tut]] provides just that. [[Benutzer:Tut|Tut]] helped quite a lot with the circuit design in this project. | ||
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| + | |||
| + | == Features == | ||
The board is carrying: | The board is carrying: | ||
| − | Atmega328 | + | * Atmega328 |
| − | MAX9098306 3.7W stereo Class D amplifier | + | * MAX9098306 3.7W stereo Class D amplifier |
| − | SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply | + | * SN74LVC2G14 dual Schmitt-Trigger with its own low noise power supply |
| − | microSD-Card Slot | + | * microSD-Card Slot |
| − | 74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels) | + | * 74LVC1G53DP Analog Switch, to set the gain of the Class D amplifier (3 levels) |
Version vom 5. September 2014, 20:11 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 responsive. 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.
