Questions about file ADXL345.c

[RicksonMonteiroML]

Hello, Truh! I hope you're doing well.

I am studying your project to design an electronic component, and I have some questions regarding the ADXL345 file.

Why do you multiply the rawValue by 4 in the __convertRawToDecimal method and return it as a int32_t data type? Is there a specific reason for that? I understand that the Tiva C series TM4C123GH6PM stores its values in two 8-bit registers, so it is necessary to read each one separately and store them in a int16_t variable. Wouldn't it be enough to use a variable of that data type?
I’m encountering some issues when I position my sensor at 90º. Sometimes, I receive full-scale values. Have you experienced this problem?

Congratulations on your project! It's been really helpful!

[truh]

Nice to hear you found my homework useful.

I imagine that I multiplied the value by 4 because that got me close enough to the resting position reading as 1G or something. The ADXL345 has adjustable precision, maybe that plays a role as well.

Unfortunately I no longer have the hardware to try it out.