TFT Display voltage and pinout question


New member
Hello-- I have the Teensy 4.1, and the 3.2" TFT display, purchased here. The pin reference for this display says to use VIN for the VCC pin, but later on in the description it says that the display must be operated at 3.3V, and VIN is labeled as 3.6 to 5.5V

Do I need something to regulate the voltage from VIN to VCC? I only have a rudimentary understanding regarding this, so any insight is greatly appreciated.

The reference regarding the 3.3V restriction applies to the display data & clock signals ("Caution: Use only 3.3V signals with this display. CS, D/C, SDI, SCK, T_CLK, T_CS, T_DIN are NOT 5 volt tolerant.We recommend using this display only with Teensy LC, 3.x, and 4.x. It should not be used with 5V boardslike Teensy 2.0 and Arduino Uno."). You will need to power your display by connecting the VCC pin to the VIN pin (5VDC) on the Teensy.

Hope that helps . . .

Mark J Culross