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Two sensors for the price of one. Senses acceleration (or deceleration) and inclination (tilt, ie. acceleration due to gravitation) in two dimensions simultaneously.
Detects upto ±2 G acceleration and a full 360° in two tilt axes.
It's a visually exciting sensor ! Can be held in the palm of your hand.
See this videoclip
for a demo of its acceleration sensing capabilities and this
videoclip for a demo of its tilt sensing capabilities ! Similar sensors are:
Application examples
- Use for hand motion and jolt, jerk or impact detection (attach it to Whirling Dervishes,
kinetic sculptures or Fido as he chases the neighborhood cat).
- The tilt sensing function is great for balance measurement: attach this sensor to your head to find out if you still can walk straight saturday night at 4 am (or whether you're actually balancing on your head) !
- A wireless Wi-microSystem
is recommended in all cases to operate without tether.
Technical specifications
| Product |
GForce2D-2 sensor |
| Version |
1.2 (March 2008) |
| Sensing parameter |
dual-axis acceleration/deceleration |
| Sensing method |
MEMS |
| Cross-axis sensitivity |
± 2 % |
| Bandwidth |
6 KHz |
| Acceleration range |
± 2 G |
| Acceleration resolution |
2.5 mG (at 100 Hz vibration) |
| Acceleration calibration (output 1 or 2) |
| G |
Voltage (use 5 V power supply) |
7-bit MIDI value (use 'no processing' editor preset) |
| -2 |
0.00 |
0 |
| 0 |
2.52 |
64 |
| +2 |
5.0 |
127 |
| Acceleration application notes |
- Identify output 1 by it's only pin and output 2 by it's three pins in a row.
- Output 1 corresponds with acceleration in the direction of the long side of the sensor, while output 2 corresponds with acceleration perpendicular to the long side of the sensor.
- Rotating the sensor around either of the two sensitive axes will change the at-rest output value corresponding to the inclination or tilt of the sensor, see inclination application notes.
- Warning ! Make sure the sensor is plugged into the Digitizer with the red wire connected to power. Reversing the plug may cause damage to the sensor.
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| Inclination range |
-180° to +180° |
| Inclination calibration (output 1 or 2) |
| Degrees |
Voltage (use 5 V power supply) |
7-bit MIDI value (use 'no processing' editor preset) |
| -90 |
2.17 |
55 |
| 0 |
2.52 |
64 |
| +90 |
2.87 |
73 |
| Inclination application notes |
- Identify output 1 by it's only pin and output 2 by it's three pins in a row.
- Output 1 corresponds to inclination in the direction of the long side of the sensor (ie. rotation about the short side of the sensor), while output 2 corresponds to inclination perpendicular to the long side of the sensor (ie. rotation about the long side of the sensor).
- Motion other than rotation (as a result of inclination or tilt) in either of the two sensitive axes will generate sensor output corresponding to the acceleration of the motion, see acceleration application notes.
- Warning ! Make sure the sensor is plugged into the digitizer with the red wire connected to power. Reversing the plug may cause damage to the sensor.
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| Power supply |
2.7 to 5.25 V DC, 1mA |
| Operating temperature |
0° to 70° C (32° to 158° F) |
| Sensor dimensions |
50 x 14 x 5 mm (2.0 x 0.55 x 0.20 inch), incl. two 3 mm (0.12 inch) mounting holes spaced 30 mm (1.2 inch) apart |
| Weight |
25 g (0.9 oz), incl. cable |
| Cable |
1.0 m (39 inch), shielded, red wire = power, black wire = ground, grey wire = sensor output 1, white wire = sensor output 2, maximum extension 30 m (98 ft) |
| Connector |
double male plug with 3+1 pins in two rows spaced 2.54 mm (0.100 inch) |
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