HiTechnic NXT Angle Sensor (NAA1030)

This sensor uses the msensor device class.

	Mode 0	Mode 1	Mode 2	Mode 3¹
`mode`	`HT-ANG-DEG2`	`HT-ANG-ACC`	`HT-ANG-RPM`	`HT-ANG-RSET`
Description	Angle	Accumulated angle	Rotational speed	Reset Angle
`num_values`	`1`	`1`	`1`	`1`
`value0`	Angle	Angle	Rotational speed	Angle
Min	`0`	`-2147483648`	`-32768`	`0`
Max	`180`	`2147483647`	`32767`	`180`
`units`	`deg` (degrees)	`deg` (degrees)	`RPM` (revolutions per minute)	`deg` (degrees)
`dp` (decimal places)	`0`	`0`	`0`	`0`

Values in the tables that look like ```this``` are the names of sysfs attributes or values returned by said attributes.

[1]: HT-ANG-RSET mode is exactly the same as HT-ANG-DEG2 except that the angle is reset each time the mode is set to HT-ANG-RSET.

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