# \[SOLVED\] 3.5 TFT not stable at power up !

**URL:** <https://forum.arduino.cc/t/solved-3-5-tft-not-stable-at-power-up/684536>\
**Category:** Displays\
**Created:** [November 27, 2020, 9:06am UTC](https://forum.arduino.cc/t/solved-3-5-tft-not-stable-at-power-up/684536 "2020-11-27T09:06:37Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![wolfrose](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/wolfrose/32/223333_2.png) [@wolfrose](https://forum.arduino.cc/u/wolfrose)\
**Post date:** [January 8, 2021, 10:00pm UTC](https://forum.arduino.cc/t/solved-3-5-tft-not-stable-at-power-up/684536/19 "2021-01-08T22:00:13Z")

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This is my dev board for testing displays and some modules and maybe couple sensors.

My questions:

1. Do I need to add any capacitors ? or every module is packed with necessary stuff ?
2. I want to wire the touch and SD modules of the 3.5 tft module, are they following the 3.3V as the other pins or they are 5V tolerant ?

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