Hi, yes I'm new and asking maybe the same questions others have asked. Please bear with me.
I'd like to build an automatic trim tab unit with Arduino.
I am a little lost when interfacing screens to the Arduino unit. So my thoughts are as follows.
1x Mega Arduino Board 2560
1x 3.2" Touchscreen 240x320 ILI9341 based with SD Card
1x 9axis DOF Accelerometer Gyroscope and compass module -
2x Dual relay module to drive the actuator pump up down
Now my questions relate to the number of pins required to connect the above to the main board and do I have any spare?