The Pi in any form is a much larger system with a whole lot more clock cycles, larger architecture, and more peripherals like a full memory management unit, graphics hardware, etc.
On the flip side IIRC most ESP32’s are 210MHz and just dual core. It is microcontroller versus microprocessor, so probably 10× less power or more.
It has a 150 mAh battery, so even with Shuffle’s optimization level, 2200 mAh should still last more than a week for Tangara. I gave Nano 7 as an example because it’s what I have. Of course I’m not expecting Apple level optimization but they can do much better. Otherwise 2200 mAh is an overkill for such a device.
20 hour battery life of use is actually far better than I thought it would be. Wonder what the pi equiv build would bu
The Pi in any form is a much larger system with a whole lot more clock cycles, larger architecture, and more peripherals like a full memory management unit, graphics hardware, etc.
On the flip side IIRC most ESP32’s are 210MHz and just dual core. It is microcontroller versus microprocessor, so probably 10× less power or more.
A Raspberry Pi Pico would be sufficient for this. It uses the RP2040, which is comparable to the ESP32, minus the WiFi.
That’s actually so low imo. It just plays music and doesn’t connect to internet right? Should last for like a week at least.
20 hours of playback. Not 20 hours of idle.
Hmm if it’s 20 hours of constant playing then that’s much better
It needs a serious optimization. iPod Nano 7 lasts 30 hours with a 240 mAh battery. So with 2200 mAh, it should last like 10 days at least.
Ipod shuffle lasts 12 hours with an even smaller battery
https://en.wikipedia.org/wiki/IPod_Shuffle
It has a 150 mAh battery, so even with Shuffle’s optimization level, 2200 mAh should still last more than a week for Tangara. I gave Nano 7 as an example because it’s what I have. Of course I’m not expecting Apple level optimization but they can do much better. Otherwise 2200 mAh is an overkill for such a device.