Stalker and 2.8" TFT touch screen

Products & Technology Arduino & Seeeduino
#1

I purchased a Seeeduino Stalker board and the 2.8" TFT shield, and I’m trying to add a SHT11 temperature/humidity sensor to this combo.
The first problem is to find an available pin, because the TFT shield seems to use ALL of the pins.
Except for two: pins 18 and 19 (SDA and SCL).
So far so good, I get the SHT11 working, I can read temperature and humidity and display it on the TFT.

Next step is to get some data from the DS3231 RTC. Problem: when I initialise the communication to this chip, the temperature data from my sensor gets completely scrambled…
because I am using the SDA and SCL pins?

Am I right that you can’t use any other sensor if you use this TFT shield? This would be a major setback for me,

Thanks for any info or input,

Phaedra

#2

Hey,maybe you are using TFT touch shield 1.0,this shield have used almost all pins,so you might need to use Mega to expand I/O pins… but we have a TFF touch shield 2.0 now,it occupys some pins but others you can use for other devices.

#3

Ok, thanks for the reply.
I must have looked at the documentation of the version 1.0 then.
I’ll have to check somehow which version I bought…I hope it is marked somewhere…

Thanks again,

Phaedra

Edit:
I looked up my invoice, and it states that I have a V2.0, so I will try the pins that should be available…

Thanks for pointing that out!