LiquidCrystal_I2C | LiquidCrystal Arduino library for the DFRobot I2C LCD

I am using an Arduino 2560, NEMA23 Stepper motor with a TB6600 driver. The driver is set to 1/32 step division. The motor by default is 200 steps per revolution.

I want to input step size, number of steps and settling time. Once the loop completes the number of steps i want to return to the starting point. The plan is to take multiple images and stack them in Photoshop.

So far everything works except for the return to starting point ...some of the time. If I don't step too far, meaning a combination of step size and number of steps, the motor returns to the starting point. If I exceed "X" distance the last step continues to move forward instead of backwards. I haven't fully tested what "X" distance is.

Example: If I use 5 steps with a step size of 5000 then the code returns to the starting point. If I change the steps to 7 and keep the step size at 5000 it does not return but moves forward.

Here is the complete code:

I'm working on my college project on which I have to measure the temperature show it on 16x2 LCD and also to switch the cooling device according to the temperature, also I have to use pH Sensor and have to display its value on 16x2. Currently I'm using the code below for Temperature and switching, but it is not working properly. It shows the temperature on the screen but also some garbage value, and also not switching properly.

So I have been working with my Arduino to make a calculator, and thats what I did. Although, it did not work as I expected it to. When I input simple calculations, it spits it out fine, but when I put in complicated calculations, it goes berserk! It tells me that 9999 * 9 is about -14554 or something like that. Here is the code:

I have an LCD display attached to my Arduino Mega 2560 using the following code:

I would like to compare two values z1 (CRC built from last two concatenated of outWord[10] and outWord[11]), and z2 that is also CRC but calculated upon packet numbers.
z1 is as it should be e568 and z2 too, but when I compare both values I got a difference.

Can you tell me please where the problem is?

I have two classes where the first one is instantiated in an object wich is used inside another object of class 'two'. The problem I have is when trying to access the members of the object of first class through the object of second class.

I'm using this approach on arduino to instantiate an object wich controls a LCD with LiquidCrystal_I2C class wich needs parameters as soon is instantiated.

Example code: