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32% OFF 3,5 pouces TFT Écran Couleur Module 320 X 480 Support d'Arduino UNO Mega2560 13,83€ 20,29€ View It

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Minewarrior 22/09/2018

This little thing is cute and good looking, although it is slooowwww when plugged in a MEGA. I was curious to see if it would go faster in a DUE. But in the documentation, nothing is said on compatibility with DUE. A big issue is that Due has 3.3V and MEGA 5V inputs. I did not want to fry my DUE, so, first, I checked if it was electrically compatible. And it is! in the shield, it has a pair of 74LC245A wired as level shifters. These are powered at 3.3V, and have 5V tolerant inputs. So, I plugged it, compiled the graphics demo sketch, and wow! refreshing speed was fantastic. Conclusion: good for applications with static display or requiring low refreshing speed... or switch to an Arduino DUE.

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