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add battery sensor

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harald42 2013-01-23 09:20:11 +01:00 committed by harald
parent 538bb6075c
commit ff022fce05
4 changed files with 12 additions and 17 deletions
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2
examples/osd/er-rest-example-dht11/er-example-server.c
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@ -58,7 +58,7 @@
#define REST_RES_LEDS 0
#define REST_RES_TOGGLE 0
#define REST_RES_LIGHT 0
#define REST_RES_BATTERY 0
#define REST_RES_BATTERY 1
#define REST_RES_RADIO 0

2
examples/osd/er-rest-example-dht11/project-conf.h
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@ -36,7 +36,7 @@
//#define PLATFORM_HAS_BUTTON 1
//#define PLATFORM_HAS_LIGHT 1
#define PLATFORM_HAS_TEMPERATURE 1
//#define PLATFORM_HAS_BATTERY 1
#define PLATFORM_HAS_BATTERY 1
//#define PLATFORM_HAS_SHT11 1
#define SICSLOWPAN_CONF_FRAG 1

3
platform/osd-er-lp24/Makefile.osd-er-lp24
View file

@ -9,7 +9,8 @@ CONTIKI_TARGET_SOURCEFILES += temperature-sensor.c adc.c button-sensor.c sensors
CONTIKI_TARGET_SOURCEFILES += dht11.c
#Needed for DS18S20 temperature sensor
CONTIKI_TARGET_SOURCEFILES += ds1820.c
#Needed for Battery test
CONTIKI_TARGET_SOURCEFILES += battery-sensor.c
CONTIKIAVR=$(CONTIKI)/cpu/avr
CONTIKIBOARD=.
BOOTLOADER_START = 0x1F000

22
platform/osd-er-lp24/dev/battery-sensor.c
View file

@ -31,30 +31,23 @@
/**
* \file
* Battery sensor header file for Atmega128rfa1.
* Battery sensor file for Atmega128rfa1.
* \author
* Paulo Louro <paulolouro@binarylabs.dk>
* Harald Pichler <harald@the-develop.net>
*/
#include "dev/battery-sensor.h"
#include "adc.h"
/* Connect Battery(+) to pin A1, via a 1000/470 voltage divider.
* This will case a battery voltage of 5.0V to read as the max analog
* voltage of 1.6V.
*
* Connect Battery(+) to pin A1, via a 1000/(470+470) voltage divider.
* This will case a battery voltage of 3.3V to read as the max analog
* voltage of 1.6V.
/**
*The atmel rf23x radios have a low voltage detector that can be configured in units of 75 millivolts. Here is example *code for the ATmega128rfa1, where the BATMON register is in extended io space [dak664]
*/
#define INPUT_CHANNEL 1
#include "dev/battery-sensor.h"
const struct sensors_sensor battery_sensor;
/*---------------------------------------------------------------------------*/
/**
* \return Voltage on battery measurement pin, 4096 is 5V.
* \return Voltage on battery measurement with BATMON register.
*/
static int
value(int type)
@ -67,11 +60,12 @@ value(int type)
/* Use BATMON register instead */
for ( p1=16; p1<31; p1++) {
BATMON = p1;
// delay_us(100); //delay needed?
clock_delay_usec(100); // delay needed !!
if ((BATMON&(1<<BATMON_OK))==0) break;
}
h=2550-75*16-75+75*p1; //-75 to take the floor of the 75 mv transition window
return h;
}
/*---------------------------------------------------------------------------*/