Hello,
Thanks for your advices.
I used it, but the MPL115A1 didn't work. I was frustrated, and I decided (I don't know why) to play with the chip select from the serial monitor. When I withdraw the connection from the D4 (CS MPL115A) the measurement changed. The values were not correct, but different. Also, I decided to withdraw the VCC pin (3,3V) just to know if the sensor was shutdown or enable...
It's just unbelievable, it's running perfectly now!!! without vcc!!! ??? I don't know why...
I'm going to read again and precisely the datasheets...
I added some pix in the attachment.
I'm wondering if my alunimun support is not the reason of this malfunction? perhaps that create an electric connection between the different boards... I'll inform you about my research...
Thanks so much.
