I really don't agree that most people would use audio from HDMI unless they're using it as an XBMC box on their TV.mahjongg wrote:Most people would use the audio from the HDMI channel, which is much better than PWM audio.
It's a Catch-22; having multiple versions of a Pi Zero W probably isn't a good idea, and for every person happy to pay more for having the analogue audio components fitted there will be another saying that's an unnecessary expense and they should be left off to keep the RRP as low as possible.harvie wrote:Also i wouldn't mind to pay 1-3$ more for this if there was alternative version of raspi zero w with analog stereo out.
Surely you're going to have to pay for an amp and speaker of some sort, so adding the PWM-conditioning circuit to that won't add much to the cost?harvie wrote:... I was thinking about making small speaker system for shop/hall to stream microphone announcements to employees/customers using wifi or bluetooth. PWM would be good enough for speech, jingles or little bit of music...
I don't understand your problem.harvie wrote:It's more about size and being compact and easy to use than about money. it would be vital for speed of prototyping.
I understood that most expensive part are electrolytic DC decoupling caps.
However it's true you often need to use some kind of amplifier and these already have DC decoupling capacitors on them, so it might be possible to omit these on raspberry and only supply the PWM low-pass filter made using ceramic caps which is probably way cheaper than electrolytic DC decoupler caps. So it would be easy to use with amp modules that already have own DC decoupling. And if one would need to use it with headphones or something similar, then it would be relatively easy to add two electrolytic capacitors by own means...
alternatively leaving unpopulated pads for these components so people can supply them on their own directly to zero board if needed... that would be extremely cheap for manufacturer and quite handy for users/developers. Especially with PWM lo-pass already on board. You just solder two SMD or thru hole electrolytics and you are ready to go. Similar has already been done with unpopulated pads for external wifi antenna connector.
But the zero already has composite
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