I was wondering how to connect a tft touch shield and a ds1307 rtc on an Arduino motor shield. Bascially i want to the user to be able to control the timing for a motor to rotates back and forth. The touchscreen is so the users can input the times the motor can rotate in one direction or the other. The problem is the touchscreen cant attach directly on motorshield because the rtc module is connected to the motor shield. I posted a link to the tft shield i am using.
You have a regular Blue Mcufriend Shield. It uses Analog#4 pin for LCD_RESET.
A4 is the I2C SDA pin on a Uno. So you can't use the hardware TWI bus on a Uno for the DS1307.
Determine which controller is mounted on your Shield by running the LCD_ID_readreg sketch or any MCUFRIEND_kbv example.
David.