squawk
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| squawk [2016-10-10 15:55] – [Usage] rob | squawk [2016-10-10 15:59] – rob | ||
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| There are four speakers connected, two per channel, located in each of the rooms on the ceiling. The speakers are 8 Ohm moisture resistant cheap ceiling speakers that have exceeded expectations and produce a surprisingly full sound. This opens up the potential for using them for background music in the future (e.g. via MPD). | There are four speakers connected, two per channel, located in each of the rooms on the ceiling. The speakers are 8 Ohm moisture resistant cheap ceiling speakers that have exceeded expectations and produce a surprisingly full sound. This opens up the potential for using them for background music in the future (e.g. via MPD). | ||
| + | |||
| + | ==== Raspberry Pi ==== | ||
| + | |||
| + | Standard pi other than having some wires soldered on the underside of the board to connect to the 3.5mm audio jack. Powered via the header rather than USB. | ||
| + | |||
| + | ==== Amplifier ==== | ||
| + | |||
| + | * TPA3116 | ||
| + | * "100 W" | ||
| + | * 12-24v (more volts = more power) | ||
| + | * Volume pot | ||
| + | * 3-pin header input or 3.5mm socket | ||
| + | |||
| + | Audio is input via the 3-pin header. | ||
| + | |||
| + | Power is input on the centre screw terminal, with left and right speaker outputs either side. | ||
| ==== Power Supply ==== | ==== Power Supply ==== | ||
squawk.txt · Last modified: 2023-11-25 23:45 by jaso55555