Just a few days ago I finished the assembly of the board. I planned to use 4 springs attached at one end to the 4 corners of the PCB and at another end to a solid back piece, so as to move the board and then release it, to come back to its original position. This didn't work unfortunately, looks like I need some serious springs, and the trouble of finding them is just not worth it.
Let me show you a couple of photos of the finished board:
In this last photo you can see the connector with 8 pins and 6 cables and a 3 pin connector for the power supply (don't worry, only two pins are actually used)
I stole a 3.3 V voltage from the second pin from the left and placed it on the last pin which is the SLEEP pin, and as you guessed it is activated in 0, so I need to set it to 1 so I can get a reading out of the X, Y and Z pins.
I have left 2 pins unconnected, because I want to leave the accelerometer in its default range of 800mV/g and a maximum of ±1.5 G detected on any axis. Thanks to the reading I got today from the oscilloscope, this range of detection is perfect for my application.
I must admit that this type of sensor is truly amazing, at a level state, the X and Y axis are at mid-supply (i.e 1.6V) meaning no G is detected, while Z axis signals it is sensing 1G (i.e. 2.4V). If I turn the sensor up-right, the Y arrow on the PCB points down so the Y pin is at 2.4V, meaning 1G, which is correct, because it is sensing the natural attraction force of the earth. Now if I turn it up side down, the Y pin is at 0.6V meaning -1G(the arrow for the Y axis is pointing away from the earth)
Feeling pretty happy right now... I leave you with my messy desk:
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