ESP8266 Community Forum

- Fri Aug 05, 2016 7:05 am #52185 Hello !

I've got some knowledge in electronic based on what i've learned 7 years go at school but it's clearly not enought. I'm asking for help with my esp8266-07 and TFT ILI9341.

I have no pb with the esp, it works fine. But the TFT won't show anything except that white screen.
I searched a lot, on this forum, i found that thread http://www.esp8266.com/viewtopic.php?f=32&t=2625&hilit=ILI9341+white+screen and i tried everything mentionned in this topic.

I connect my esp with the TFT like that :

GPIO 2 D/C
GPIO15 CS -> 10k ohm-> GND
GPIO12 MISO
GPIO13 MOSI
GPIO14 SCK
3.3v -> 5ohm -> LED
3.3v RESET
3.3v VCC
GND GND

I've got a breabord with a yuRobot power out settled at 3,3v and power in supply with 12v-1.5A.
i mesure 3.12V and 0.13A on the board when everything is connected.
I suspect the current is too low for both esp and TFT. I already tried 2 separate alimentation but it's nor working.

What i am missing ?

Thanks in advance.

Jordan

- Fri Aug 05, 2016 11:44 am #52200 I can confirm, i need 2 separate power supply. The Esp doesnt seem to work normally with the tft on the same line.
I put another alimentation which gave me 3.2V and 0.3A but still this white screen.

Forgot to mention that i used the adafruit library and the graphic test example sketch in the arduino IDE.

- Sat Aug 06, 2016 4:33 am #52267 Please take a look at:
http://usemodj.com/2016/03/21/esp8266-d ... ini-board/

- Sat Aug 06, 2016 7:19 pm #52353 I test with a second TFT and it works nicely.
I've got a white screen on the first because it was broken i think.

Thanks for ur link anyway