The Raspberry Pi Home Media Center is a series of compact and neatly designed hardware projects that combine the power of the Raspberry Pi Zero board and the Hi-Fi audio DACs. The HiFi version of the board uses the capabilities of the TI's PCM5100 32-bit DAC with line-level output, while the Louder version is based on TAS5805M with a stereo amplifier delivering 20W per channel. In the middle, there is a Loud model with dual MAX98357A DAC with up to 5W music power per channel.
This versatile media center provides a customizable and fully open-source hardware platform for home entertainment.
Following the Louder model, a smaller version came into existence. Named Loud Raspberry, It is based on the very well-known MAX98357A DAC. Compared to the Louder model is it not as loud (obviously), delivering 'just' 5W of music power per channel.
Why would you want one? For starters, it is much easier to use, just like the HiFi model you need just one line in the config file, enabling built-in overlay. Another reason is that with just a 3 Amp power requirement, you can use it with a standard wall power adapter (any modern phone charger will do). Since everyone has a few laying around, it is easier to get started.
To get a feeling, how much is the humble 5W, below is the demo video.
The project started with a line-level PCM5102 DAC which is very common among both Raspberry and Arduino users. I'm using it in combination with a classic 80's amplifier to get the look that I like and am used to with modern streaming capabilities.
Sure it is possible to use it directly with speakers, I have just the DAC for it. It is TAS5805M that I used in the Louder Esparagus board. It requires around 20V of input voltage, so I opted for PD-enabled USB-C power sources. They are easy to find these days and 65W ones are just right wattage too.
I did some work collecting code and information around this DAC (it will not work out-of-the-box unfortunately). Instruction on how to set it up is available here, and frankly, it takes just a few minutes to get it working.
Hope that many of the Raspberry Pi owners will find this little box useful.