btnut/btnode/include/hardware/btn-bat.h File Reference

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Detailed Description

Functions for battery measurement.

Date:

15.11.2004

Author:

Mustafa Yuecel <mustafa.yuecel@alumni.ethz.ch>

Matthias Ringwald <mringwal@inf.ethz.ch>

The ADC is now automatically initialised, there is no need to do this manually anymore. The corresponding changes to the nut source code to ADCInit() have been made.

Attention:

Don't use another function which use the adc.h at the same time

#include <sys/types.h>

Functions
int	btn_bat_measure (int n)
u_char	btn_external_power (void)

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Function Documentation

int btn_bat_measure

(

int

n

)

this function returns the battery voltage in mV.

Parameters:

n

# of adc readings (between 10 and 100)

Returns:

average voltage in mV

Examples:

bt-remoteprog/demo-rprog.c.

u_char btn_external_power

(

void

)

this function checks if you have external (unlimited) power.

Returns:

1 if external power, else 0

Examples:

bt-remoteprog/demo-rprog.c.

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