Building Arduino Self Balancing Robot

First Part of the series which help you to learn in a fun and hands on way about embedded systems with the help of microcontrollers, inclination sensors, motor drivers, stepper motors and PID control by building a self balancing robot
Important note: While building the self balance robot the calibration of PID parameters is the most difficult part and it depends on a lot of factors like sensor position, sensor calibration, weight of the robot, height of the robot, wheel diameter, tire friction etc. without which achieving self balance will not be possible

[@Francesco105590]

hello, I assembled everything, but the robot swings, holding it with the hand, it does not stay still, if I let it go it moves away and falls

[@Francesco105590]

hi, what code did you upload?

[@DharmeshPrajapatiM]

Great project! I tryed to do the same, but the app keeps giving me an error saying that no data was received. I've changed the UART/BAUD in the Bluetooth module to 115200, but I'm getting the same error message from the APP. The error is not comming when i connect from usb of arduino nano but when i connect 12v battery then error is comming. Do you have any idea of what I'm doing wrong? Thank you, sir.