BG654171751 No, that’s why it has four pins. The pin out is 1.VCC 2.Data(digital pin) 3.A pull up resistor to VCC 4.GND I know this question is ancient but maybe it can help someone reading this

BG654171751 If using the Adafruit TFT, or the MCUFRIEND_kbv library, you would just do a tft.fillScreen(BLACK); You would obviously need the hexadecimal value for the colours, but that’s the best way to do it. If you want to actually turn it off, maybe you could do a tft.reset(); then don’t do a tft.begin(identitifier); till you want to turn it on. Try it, it doesn’t hurt to try. Just experiment and see what you get. Hope this helps.

BG654171751 With a nano, you would have the same wiring as an uno, just that it wouldn’t be a shield anymore. You would need many many wires lol. You would have to place it on a breadboard and wire it accordingly. As of free pins, you would have the SCL and SDA pins, digital 0 and 1, and analog 5. With the Uno, I use it as a shield, but I used a wire cutter to take off A5, digital 0 and 1, VIN and RESET. Sorry for too much information, I hope this helps.