ESP8266 Community Forum

Posted: **Sun Apr 19, 2015 3:46 pm**

Hi

i use library
https://github.com/esp8266/Arduino/tree ... it_ILI9341

Uses HSPI.
Wiring:

ILI9341 pin ESP-07 pin
MISO GPIO12
MOSI GPIO13
SCK GPIO14
CS GPIO15
DC GPIO2

Reset 3V3

only white screen not working.

Posted: **Mon Apr 20, 2015 3:38 am**

In your wiring is missing connect the TFT LED pin (through 50-60 Ohm resistor to 3V3), no?
In my case, I have to connect 5V to work.

Posted: **Mon Apr 20, 2015 6:27 am**

Ribeiro Santos wrote:In your wiring is missing connect the TFT LED pin (through 50-60 Ohm resistor to 3V3), no?
In my case, I have to connect 5V to work.

no TFT Led 50-60 resistor 3.3v

but important problem GPIO15 always connected GND ESP-07 not connect GPIO15 -> GND not working.

TFT CS pin to GPIO15 because of this TFT CS always GND.

What should I do for it?

Posted: **Mon Apr 20, 2015 6:37 am**

If you're using just one SPI device no problem, because CS (chip select) when LOW means this device is ACTIVE (in use).

The TFT should have one pin to control the brightness. Is this your TFT http://forum.arduino.cc/index.php?topic=200126.0? See the link, if it help you with wiring or another tip.

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