Driver / Hall sensor

Driver for a Hall-effect angular sensor. More...

Functions
void	hall_Init (AdcChannel channel)
	Initialize the hall sensor driver. More...
float32_t	hall_GetVoltage (void)
	Return the Hall sensor output voltage. More...

Detailed Description

Driver for a Hall-effect angular sensor.

This driver uses an ADC input, ANIN1 or ANIN2 (see ADC). To use this, connect wire the sensor as this:

• hall red -> +5V (pin 1 or 5 of J2).
• hall yellow -> GND (pin 2 or 6 of J2).
• hall blue -> ANINX+ (pin 3 or 7 of J2).
• GND (pin 2 or 6 of J2) -> ANINX- (pin 4 or 8 of J2).

Set the sensitivity switches to +-10V.

Call hall_Init() first in the initialization code. Then, call hall_Get() to get the angle of the paddle.

Function Documentation

hall_GetVoltage()

float32_t hall_GetVoltage

(

void

)

Return the Hall sensor output voltage.

Returns

The Hall sensor output voltage [V].

hall_Init()

void hall_Init

(

AdcChannel

channel

)

Initialize the hall sensor driver.

Parameters

channel

the ADC channel the hall sensor is wired to (0 or 1).