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E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

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Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#11

Post by mwcampbell »

SavantIdiot wrote: post #7

Nice, but I can't think of less power-efficient embedded platform than an RPi. Especially with something as low power as E-Ink (zero power when displaying). Innophase T2, Dialog DA16200, RedPines (SiLabs) RS9116, RealTek Ameba... they all are super low power (like 100x less than RPi) even while maintaining the 802.11 association, and come with easy SDKs ready for REST HTTPS out of the box (and RTC capabilities, not s…

How does ESP32 compare to the products you listed?

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#12

Post by axegon_ »

WORMS_EAT_WORMS wrote: post #4

Can’t explain why but all these E-Ink projects are so awesome and attractive to me. I’m surprised I can’t just buy a bunch of E-Ink style gizmos from some company to decorate my home and office. My wallet would be wide open to it constantly. Great work and congrats on this!

They are neat. It's not as much in your face as a normal display plus they require almost no power so you can do awesome things with a SBC or an Arduino, smb32 or something else if you really want to make something completely off the grid. The Denali is that eink displays are still insanely expensive compared to any other screen.

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#13

Post by dheera »

mwcampbell wrote: post #11
SavantIdiot wrote: post #7

Nice, but I can't think of less power-efficient embedded platform than an RPi. Especially with something as low power as E-Ink (zero power when displaying). Innophase T2, Dialog DA16200, RedPines (SiLabs) RS9116, RealTek Ameba... they all are super low power (like 100x less than RPi) even while maintaining the 802.11 association, and come with easy SDKs ready for REST HTTPS out of the box (and RTC capabilities, not s…

How does ESP32 compare to the products you listed?

I find the ESP32 much easier to develop for, you don't need to install any toolchains, just plug in and drop code into the virtual USB drive that shows up! I wish all microcontrollers were like that these days.

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#14

Post by SavantIdiot »

mwcampbell wrote: post #11
SavantIdiot wrote: post #7

Nice, but I can't think of less power-efficient embedded platform than an RPi. Especially with something as low power as E-Ink (zero power when displaying). Innophase T2, Dialog DA16200, RedPines (SiLabs) RS9116, RealTek Ameba... they all are super low power (like 100x less than RPi) even while maintaining the 802.11 association, and come with easy SDKs ready for REST HTTPS out of the box (and RTC capabilities, not s…

How does ESP32 compare to the products you listed?

I wanted to try their Espressif ESP32 low power 802.11 part back in March but it wasn't shipping yet. Their website isn't clear but I'll poke around and see if it has been released yet.

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#15

Post by miohtama »

SavantIdiot wrote: post #7

Nice, but I can't think of less power-efficient embedded platform than an RPi. Especially with something as low power as E-Ink (zero power when displaying). Innophase T2, Dialog DA16200, RedPines (SiLabs) RS9116, RealTek Ameba... they all are super low power (like 100x less than RPi) even while maintaining the 802.11 association, and come with easy SDKs ready for REST HTTPS out of the box (and RTC capabilities, not s…

Can you keep RPi most of the time hibernated? Does it still draw a lot of power in sleep?

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#16

Post by opencl »

foolfoolz wrote: post #2

i’ve thought about this a lot because i use a whiteboard on my fridge. i would do this if it was huge like my whiteboard. like 2ft by 3ft. then i can read each day at a glance. seeing the whole month is huge. and writing on it means it should be a touch screen i find myself wanting larger displays than is for sale a lot. i want an electric photo frame but not some 12in screen. i have great photos i want to see them 4…

There are 31" and 42" e-ink displays available, but they cost a few thousand dollars. The 42" is pretty close to 2ft by 3ft, 25" x 33".

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#17

Post by ytdytvhxgydvhh »

WORMS_EAT_WORMS wrote: post #4

Can’t explain why but all these E-Ink projects are so awesome and attractive to me. I’m surprised I can’t just buy a bunch of E-Ink style gizmos from some company to decorate my home and office. My wallet would be wide open to it constantly. Great work and congrats on this!

Agreed. I’m surprised the NYT won’t sell me an official version of this: https://news.ycombinator.com/item?id=25063726

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#18

Post by freeone3000 »

acidburnNSA wrote: post #8

Heh that's cool. It renders the calendar as HTML and then uses selenium to open up headless chrome and screenshot it and then send the bitmap to the eink display. Clever.

there has to be a simpler way to draw a grid. there has to.

Re: E-Ink Magic Calendar that runs off a battery powered Raspberry Pi

#20

Post by ashtonkem »

SavantIdiot wrote: post #7

Nice, but I can't think of less power-efficient embedded platform than an RPi. Especially with something as low power as E-Ink (zero power when displaying). Innophase T2, Dialog DA16200, RedPines (SiLabs) RS9116, RealTek Ameba... they all are super low power (like 100x less than RPi) even while maintaining the 802.11 association, and come with easy SDKs ready for REST HTTPS out of the box (and RTC capabilities, not s…

I was going to say, I feel like an ESP32 might be a better fit for this, given that it’s designed for deep sleep.
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