osd-contiki/examples/osd/arduino-valve/resource_valve.c
Ralf Schlatterbeck dca85a7b6b Add valve example
Used for gardena valves with 9V power supply.
2017-03-24 20:10:37 +01:00

70 lines
1.5 KiB
C

/**
* \file
* Resource for Arduino PWM
* \author
* Ralf Schlatterbeck <rsc@runtux.com>
*
* \brief get/put pwm and period for LED pin
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "contiki.h"
#include "jsonparse.h"
#include "er-coap.h"
#include "generic_resource.h"
#include "Arduino.h"
#include "valve.h"
uint8_t valve;
int valve_from_string (const char *name, const char *uri, const char *s)
{
uint32_t tmp = strtoul (s, NULL, 10);
if (tmp) {
tmp = 1;
}
if (tmp != valve) {
digitalWrite (ENABLE_PIN, HIGH);
if (tmp) {
digitalWrite (BRIDGE1_PIN, HIGH);
digitalWrite (BRIDGE2_PIN, LOW);
clock_delay_msec (250);
//clock_delay_msec (2500);
digitalWrite (BRIDGE1_PIN, LOW);
digitalWrite (ENABLE_PIN, LOW);
} else {
digitalWrite (BRIDGE1_PIN, LOW);
digitalWrite (BRIDGE2_PIN, HIGH);
clock_delay_msec (62);
//clock_delay_msec (2500);
digitalWrite (BRIDGE2_PIN, LOW);
digitalWrite (ENABLE_PIN, LOW);
}
}
valve = tmp;
return 0;
}
size_t
valve_to_string (const char *name, const char *uri, char *buf, size_t bufsize)
{
return snprintf (buf, bufsize, "%d", valve);
}
GENERIC_RESOURCE \
( valve
, VALVE
, valve-status
, 0
, valve_from_string
, valve_to_string
);
/*
* VI settings, see coding style
* ex:ts=8:et:sw=4
*/