I could not print the data coming from the slave device to the stm32f7 card to the NEXTİON screen.
Hi. I use STM32F767, Arduino Mega and Arduino Nano boards. Arduino boards is a slave devices. Stm32 board is a master board. I communicate with Arduinos and STM via I2C. Information comes from Arduino cards. I can see the information in debug mode. I want to print this information (the information comes as char information) on the Nextion screen. I was able to create another project and print information on the nextion screen. But I couldn't do this. I uploaded my codes. Can you check my code? What is wrong?
Thank you for the answer




