How to Use a Display with your Raspbery PI + Pi Hat
In order to support some use cases we have decided to share our experience working with a Raspberry Pi, a Pi Hat and also a Display.

Hardware used
-Raspberry Pi 3 - Model B+ - 1.4GHz Cortex-A53 with 1GB RAM
-PiTFT Plus Assembled 320x240 2.8" TFT + Resistive Touchscreen
-GPIO Ribbon Cable for Raspberry Pi Model A+/B+/Pi 2/Pi 3 - (40 pins)
-Break-away 0.1" 2x20-pin Strip Dual Male Header

Guide
- First of all you need to assemble all the hardware above mentioned. For that I suggest starting by assembling the GPIO Ribbon Cable into the
- 8 PITFT male connector. Make sure pin1 from the PITFT match with pin1 from the Ribbon Cable (usually identified with an arrow).
- After that, assemble the male pin header 2x20 into the other female connector left from the ribbon cable.
- Then you'll need some soldering skills to solder it into the Pi Hat from the top. Again, make sure the pin 1 and 2 (brown & red cables) from the ribbon cable match the pin1 and 2 of the Pi Hat .
- Now you only need to connect the 2.8 PiTFT Hat into the Raspberry Pi and plug the power.
- Prepare you Raspberry Pi to work with our Pi Hat (see Software)
- To setup your PiTFT check here.
If you are unsuccessful, try the steps below...
Before you try again, we need to disable the SPI to avoid conflicts with Display SPI:
- Power off your device;
- Remove the TFT display and let only the pi hat connected to the Raspberry Pi;
- Power up the device;
- Run terminal and consequently a console, typically:
sudo minicom -b 115200 -D /dev/ttyAMA0
and press CRTL+A then Z, and press E in order to be possible see what you're writing; - Send the command
V
+ CR (carriage return = Enter). Make sure that command is a capital "V" not "v". Then you should see the response of the MDB Pi Hat. You should see at least V3.0.2.1 (firmware version); - Disable SPI, send
F,SPI,0
if you need to enable it again useF,SPI,1
; - Connect the Display again and reboot the entire system;
Now should work properly.
If not contact us at tech@qiba.pt - we'll answer you!