Add a dirt-cheap screen to the Raspberry Pi B+

Post by tdicola » Thu, Mar 05, 2015, 5:57 PM UTC

chisleu wrote: post #9

Maybe they can tackle the long-lived, widely-experienced SD card corruption issues of the RPi in the next version instead of adding a bunch more pins and an extra core. Meanwhile the competition even has eMMC in the same price range.

Post by knutsonbradacnl » Thu, Mar 05, 2015, 6:13 PM UTC

Someone1234 wrote: post #3

This looks extremely fun, and I can see it being used for creating homemade mobile devices, and stand-alone packaged hardware. I will say fun and small size notwithstanding the current cost of doing this ($50) is a little high relative to just buying a super-low end LCD monitor ($85 for an 18" by Samsung, Asus, and Acer, $54 for a refurb from NewEgg). But I'm sure that misses most of the point... Just seems like the…

Post by UweSchmidt » Thu, Mar 05, 2015, 6:23 PM UTC

tdicola wrote: post #11

chisleu wrote: post #9

Maybe they can tackle the long-lived, widely-experienced SD card corruption issues of the RPi in the next version instead of adding a bunch more pins and an extra core. Meanwhile the competition even has eMMC in the same price range.

This comes up with every Pi post on HN for some reason, but if you're getting SD card corruption you either have a bad card (check the known good cards: http://elinux.org/RPi_SD_cards ) or are not shutting the Pi down correctly. You absolutely cannot just pull the power cord out while booted up because the SD card might be in the process of writing and you'll easily corrupt it. Make sure you always run 'sudo shutdown…

Post by paulgerhardt » Thu, Mar 05, 2015, 6:36 PM UTC

robertely wrote: post #5

Someone1234 wrote: post #3

This looks extremely fun, and I can see it being used for creating homemade mobile devices, and stand-alone packaged hardware. I will say fun and small size notwithstanding the current cost of doing this ($50) is a little high relative to just buying a super-low end LCD monitor ($85 for an 18" by Samsung, Asus, and Acer, $54 for a refurb from NewEgg). But I'm sure that misses most of the point... Just seems like the…

[Author] The premium was mostly Adafruit markup and convenience. I'm totally not mad at the price, I received parts next day. If I really wanted to save money I would design an adapter board, and order bulk screens from China. Keep in mind this is prototype cost, typically inflated seriously because it's a one off.

Post by robertely » Thu, Mar 05, 2015, 6:39 PM UTC

paulgerhardt wrote: post #17

robertely wrote: post #5

Earlier quoted context omitted.

[Author] The premium was mostly Adafruit markup and convenience. I'm totally not mad at the price, I received parts next day. If I really wanted to save money I would design an adapter board, and order bulk screens from China. Keep in mind this is prototype cost, typically inflated seriously because it's a one off.

How does this compare with some the Raspberry Pi screen kits from China? I see you can get a generic Pi LCD for $7.65, a 5" LCD with video in for $18.75, and a touchscreen Pi size kit for $19.90[1]. Going to the effort of breaking out DPI through the GPIO was quite creative. If optimized do you think these can hit sub $5? Either way, this was very clever. Thank you for taking the time to document this for others! [1]…