[f4aii]

I received yesterday 2 TFT and connected them.
The one for the WD is OK. 
The other for the RX but it remains white. 
One video to better explain.

I switch the TFT in case there is a problem on one of them. it's ok
I followed the tracks from the arduino. 

PIN 47 rings on 8 of the HC244
PIN 53 rings on R7
PIN 42, not found
PIN 9 rings on T1

where is the pin 9 on circuit? 

I try with an LCD 20X4, the same my first test : http://www.meteocercal.info/forum/Thread...ght=notice
now , i have this: 




i download original software without modified values, it's the same problem. 
Perhaps a problem with arduino? 
have you an idea?
thanks

[werk_ag]

Hi,

Do you have the Pro2 PLUS powered by the regulated 9V external power supply?
Also check again the connections to the TFT display. This display doesn't use the MISO line, leave it unconnected.

I try with an LCD 20X4, ...

i download original software without modified values, it's the same problem.
Perhaps a problem with arduino?
have you an idea?

Software should always be configured to suit the installed sensors and / or hardware.
If you have programed the Arduino, with the default values, it will not work with the 20x4 LCD, as by default it is configured for a TFT display.

Every time you post a question, please report back if the answer solved the problem. This will help me to better help you, and will help others too.

[f4aii]

I soldered everything to be sure that the contacts are frank, the screen always remains white.
I will now just desolder and test with a normal mega arduino. If this does not work, it will be one of the CMS ICs that is failing.

An 9V 3A power supply is use for powered the Pro2 PLUS

[werk_ag]

I will now just desolder and test with a normal mega arduino. If this does not work, it will be one of the CMS ICs that

I will destroy your display if you connect it to an Arduino (Mega or other) without a logic level converter. Those displays can be powered by 5V, but require 3.3V logic for the control lines.

[f4aii]

I want to try to connect the arduino in place of the meduino, no risk?
i think there is a logic level converter is out of order. Sometimes an IC can be fails.

[werk_ag]

Yes a fault IC can happen, but that would be my last suspect.
My first suspects are always cables and connections. Surely you know, but cables for SPI connections should always be very short, more than 10 to 15 cm not always work

[MikeM]

I had a similar issue when I had a faulty sensor.
The faulty sensor would cause the entire I2C bus to hang, not allowing any of the other I2C devices to talk.
As soon as I removed the faulty sensor the I2C bus responded.

You could also try and load I2C scan program on the arduino to check that all the I2C devices are picked up on the network and the addressing is the same as defined in the WeartherDuino software.

[f4aii]

I'm going to buy a hot air soldering, this will be useful to desolder the 2 ICs, I need it for other projects next.
Can you send me the 45DB011D-SSH and the 74AHC244DW?
I don't see any other components used to generate the display. I find them on the internet but not at the same reseller and the shipping costs become too high.
I'll pay them.

thanks

[werk_ag]

Hi,

You can try to discard the possibility of a problem with the flash memory (45DB011D-SSH) running the Flash_Memory_test utility included in the software package. If you get anything than zeros on the serial monitor, it means that the memory chip is working properly as also the SPI bus. However if the problem is with the SPI bus, this test can be inconclusive.
Let me know the results.
Regarding to send you the two IC's, I have sent you a PM.

[werk_ag]

Could you please post a close picture of the connections, both on the TFT and board side.
Thank you.