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does the display light?up at all? can you give us a better description?? - f
Want to upgrade my uBitx v5 to v6 but to no luck , bought a 2.8¡± ILI9341 from eBay, load an extra nano with v6 firmware, ?follow the instruction from post here in to connect 6 data cables & jumper power/ground , nothing on display, but can hear morse code on audio, need a help here , thank you.?
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Hi, just got a touch version of the ili9341, connected the six data cables & 5v & ground as well , swapped touch_CS with TFT_CS but still nothing, the display will light up only if I connect 5v to led port (pin8) ?of ili9341, ?I will attach pictures, I did not see this post early , I smoked the non-touch version trying different setup..
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Some ili9341 displays are not 5 Volt compatible.
You need a level shifter for data line.
Simple a 1k Ohm resistor in serial works fine.
ds1lmp
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Hi, still no luck after placing 1K Ohm resistor on 6 data lines, btw, same ubitx still works with stock software & arduino & kd8cec 1.2 FW , but it¡¯s off by 2-2.5MHz ....
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Darwin does your display just show a blank white screen? Barry
Hi, still no luck after placing 1K Ohm resistor on 6 data lines, btw, same ubitx still works with stock software & arduino & kd8cec 1.2 FW , but it¡¯s off by 2-2.5MHz ....
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Yes it stays white if there¡¯s a 5v power to led port on ili9341 otherwise it¡¯s blank , I tried both 1K & 10K resistors as well , thank you?
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Darwin. On the back of the display board there are very tiny jumper pads, J1.? They are close to the smd chip. If your old like me you will need a magnifying glass to see it. Make sure the pads are jumpered. If not the display will not work at 5 volts. I had the same problem. Barry
Yes it stays white if there¡¯s a 5v power to led port on ili9341 otherwise it¡¯s blank , I tried both 1K & 10K resistors as well , thank you?
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White screen can also be a power sequencing issue, I think. I added code specifically to take the screen out of standby in my build, which fixed the problem for my radio.
Reed
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hi, jumper placed on J1 , still with white screen, thank you. 
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Darwin, the picture shows the pads but no jumper. Is this is a 'before' you did the jumper picture?
Barry
hi, jumper placed on J1 , still with white screen, thank you. 
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Barry , this is before , I did use a magnifier, thank you for your reply.?
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Barry , I did but only with white screen, I wonder if I still need to place the resistors , which I did not after the jumper , or maybe the ili9341 needs its own driver like the nextion display , thank you for your reply?
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What firmware are you using in the nano?
Barry , I did but only with white screen, I wonder if I still need to place the resistors , which I did not after the jumper , or maybe the ili9341 needs its own driver like the nextion display , thank you for your reply?
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 Good morning, version 6.3.1
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Jumper? 
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Darwin, sorry that my ideas did not help you. I had the exact same issue with white screen. the display only worked properly when 3.3 volts was applied. 5 volts, white screen. I then found the jumper needed to be put in to operate from 5 volt. There is much knowledge in this group and hopefully someone has the answer. Good luck. Barry
Jumper?
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Hi Darwin,
Have a look at this wiki for a starting place of documentation.
Level shifters are recommended
See ¡°How to use on Arduino¡± (almost to the bottom of the page)
Just personal view / comments below:
I don't want to start a debate, just another viewpoint..?
A series resistor is not a level shifter per se.? It is a current limiter.
This would not be a recommended way to 'level shift'? (still turning on the ESD clamps)
MISO (Master In Slave Out) would not use a resistive level shifter.? (you said you put resistors on n data lines)
My concern is that since you have already ran a 5V signal on the bus to the board, you have subjected components to electrical over stress.
If you have induced damage, further attempts to configure this board are a fruitless / frustrating effort.
Regards,
Gary
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 Hi, luckily the ili9341 is still alive , I used the guide from educ8s.tv ?and the arduino graphics test sketch. Thank you .?
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Darwin EI4KX
