EPISODE · Oct 30, 2022 · 30 MIN
Desk of Ladyada - EYESPI 2.8" TFT revision & Scorpio revisit
from Adafruit Industries · host Adafruit Industries
With prices of TFTs back down to earth we're doing a lot of revisions and updates for our TFT breakouts. This week we looked at the 2.8" TFT with capacitive touch. We revised the board to go from having SOIC to TSSOP 74VHC245 level shifters, and with the space left over added an EYESPI connector. We're also trying to wrap the RP2040 Scorpio feather - this is an RP2040 board that is designed for driving 8 strands of NeoPixels with the NeoPXL8 library. The Great Search - Resistor & Capacitor Packs https://www.digikey.com/short/58vwhvdn For the RP2040 SCORPIO, we have 8 level-shifted outputs that come out the end, and they may end up connecting to a looooong wire strand before hitting that first neopixel. To avoid ringing, we can add a small in-line resistor (say 100 ohm). But we are really tight on space! How can we fit 8 resistors into a 2mm wide strip of space? Behold the magic of 0804 resistor packs! We love packs for space saving and possibly even cost saving when manufacturing. #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
What this episode covers
With prices of TFTs back down to earth we're doing a lot of revisions and updates for our TFT breakouts. This week we looked at the 2.8" TFT with capacitive touch. We revised the board to go from having SOIC to TSSOP 74VHC245 level shifters, and with the space left over added an EYESPI connector. We're also trying to wrap the RP2040 Scorpio feather - this is an RP2040 board that is designed for driving 8 strands of NeoPixels with the NeoPXL8 library. The Great Search - Resistor & Capacitor Packs https://www.digikey.com/short/58vwhvdn For the RP2040 SCORPIO, we have 8 level-shifted outputs that come out the end, and they may end up connecting to a looooong wire strand before hitting that first neopixel. To avoid ringing, we can add a small in-line resistor (say 100 ohm). But we are really tight on space! How can we fit 8 resistors into a 2mm wide strip of space? Behold the magic of 0804 resistor packs! We love packs for space saving and possibly even cost saving when manufacturing. #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------
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Desk of Ladyada - EYESPI 2.8" TFT revision & Scorpio revisit
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