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Arduino nano 33 BLE pressure sensor strange data

I have tried the program mentioned above and also observed some kind of regular peaks (Pressure pulses 2021-08-30 20-50-27.png) that I have never seen before. I have only modified the phyphox code (pressure_plot_v1a.phyphox) for the pressure acquisition in order to see better the peak heights.

So, I have verified pressure recording using my own programs (; bar_arduino_nano2.phyphox) and have not seen such peaks (Pressure from Arduino 2021-08-30 21-00-35.png).

Pressure variations observed are real as can be seen using two different pressure sensors

Here is the code for two sensors (bar_Arduino_SensorTag.phyphox) and the corresponding result (Pressure from Arduino and SensorTag 2021-08-30 21-03-11.png).

Attached Files Thumbnail(s)

.phyphox   bar_Arduino_SensorTag.phyphox (Size: 4.73 KB / Downloads: 310)
.phyphox   pressure_plot_v1a.phyphox (Size: 3.69 KB / Downloads: 317)
.zip (Size: 950 bytes / Downloads: 300)
.phyphox   bar_arduino_nano2.phyphox (Size: 1.98 KB / Downloads: 298)

Messages In This Thread
RE: Arduino nano 33 BLE pressure sensor strange data - by solid - 08-30-2021, 09:52 PM

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