Firmware-73 Function-123
MOVEALONG (123, 7Bh)
The MoveAlong function enables output of the MoveAlong sensor data in both host and stand-alone mode. In host mode the sensor data is output in I2C DATA messages. In stand-alone mode the sensor data is output according to the stand-alone mode settings of the input number that equals the I2C port number. There are no methods to select, ie. the FUNCTION command’s method/parameter FP is ignored:
MoveAlong v1.0
| FP | Data output in host mode | Data output in stand-alone mode |
|---|---|---|
| 0..127 | Angular Velocity [-512..511]; a signed two’s complement 16-bit value, representing [-512..511] degrees/second, sent as nibbles in four bytes (MSB .. LSB) | Angular Velocity [0..127] or [0..16383]; an unsigned 7-bit or 14-bit value, representing [-512..511] degrees/second, sent as one or two bytes (LSB, MSB) |
Example:
In order to enable the MoveAlong function to get the angular velocity data from an MoveAlong sensor with I2C device address 0 (default MoveAlong I2C device address) connected to the 7th I2C port, the following message is sent:
- 240, 125, 0 {DEV}, 8 {FUNCTION}, 6 {yyy = 6}, 1 {device address}, 122 {MoveAlong function}, 0 {angular velocity method}, 247 (F0h, 7Dh, 00h, 08h, 06h, 01h, 7Bh, 00h, F7h)
In host mode raw sensor data will be output immediately in I2C DATA messages. In stand-alone mode a suitable configuration has to be set using the EDIT CONFIG command before any MIDI messages will be output.
Other settings of the MoveAlong sensor can be effectuated by using I2C commands such as I2C WRITE and I2C READ. See also the datasheet linked from the MoveAlong v1.0 webpage.
