Hi
There are several ways to access and map the accelerometer data; here’s what I would do. After loading the above Arduino sketch and hooking up the Memsic use the serial monitor window in Arduino to view the raw values coming off the board. If the values regularly exceed 250 amend the Arduino code so that the last few lines look like this:
….
accelerationX = ((pulseX / 10) – 500) * 8;
accelerationY = ((pulseY / 10) – 500) * 8;
accelerationX /= 4;
accelerationY /= 4;
/*adjust this value such that the serial monitor values are consistently in the range 0 – 250, or manipulate the multiplier (8) in the two lines above these*/
// print the acceleration
Serial.print("1"); //header for Xval
Serial.print(accelerationX, BYTE);
Serial.print("2"); //header for Yval
Serial.print(accelerationY, BYTE);
delay(100);
}
Then in Max you need [serial] (with the correct arguments for port and baud rate), [zl group 2] to pair the header with the value, then [route 49 50] (ascii 1 and 2) to separate out the two independent number streams.
Go here for a demo/toot:
http://brendan-admi.blogspot.com/2011/07/diy-fsr-matrix-part-1-parsing-multiple.html
If you need an example patch which maps the raw values to a mixer/panner/diffuser, then just ask, or search the forum using those keywords.
Brendan
