WeatherStation - mbed Weather Platform firmware http://mbed.org/us…

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Suga koubou / Mbed 2 deprecated WeatherStation

mbed Weather Platform firmware http://mbed.org/users/okini3939/notebook/mbed-weather-platform-firmware/

Dependencies: ChaNFSSD EthernetNetIf I2CLEDDisp Agentbed ChaNFSUSB ILinterpreter mbed BMP085 WeatherMeters ConfigFile ChaNFS I2CLCD

sensor.cpp@1:6c7141895545, 2011-07-10 (annotated)

Committer:: okini3939
Date:: Sun Jul 10 15:36:46 2011 +0000
Revision:: 1:6c7141895545
Parent:: 0:bdb53686c194
Child:: 2:a3e5edf84f74

Who changed what in which revision?

User	Revision	Line number	New contents of line
okini3939	1:6c7141895545	1	/*
okini3939	1:6c7141895545	2	* Weather Station - mbed Weather Platform
okini3939	1:6c7141895545	3	* Copyright (c) 2011 Hiroshi Suga
okini3939	1:6c7141895545	4	* Released under the MIT License: http://mbed.org/license/mit
okini3939	1:6c7141895545	5	*/
okini3939	1:6c7141895545	6
okini3939	1:6c7141895545	7	/** @file
okini3939	1:6c7141895545	8	* @brief Weather Station
okini3939	1:6c7141895545	9	*/
okini3939	1:6c7141895545	10
okini3939	0:bdb53686c194	11	#include "mbed.h"
okini3939	0:bdb53686c194	12	#include "weather.h"
okini3939	0:bdb53686c194	13	#include "BMP085.h"
okini3939	0:bdb53686c194	14	#include "SHT.h"
okini3939	0:bdb53686c194	15	#include "WeatherMeters.h"
okini3939	0:bdb53686c194	16
okini3939	0:bdb53686c194	17	#define AREF 3.3 // V
okini3939	0:bdb53686c194	18
okini3939	0:bdb53686c194	19	Sensor sensor, offset, sensor_old;
okini3939	0:bdb53686c194	20	I2C i2c(p9, p10);
okini3939	0:bdb53686c194	21	static BMP085 bmp085(i2c, BMP085_oss4);
okini3939	0:bdb53686c194	22	static SHT sht15(p12, p11, SHT_high); // sclock, data
okini3939	0:bdb53686c194	23	static WeatherMeters wmeters(p21, p15, p22); // anemo, vane, rain
okini3939	0:bdb53686c194	24	static AnalogIn ailight(p16), aiuv(p17);
okini3939	0:bdb53686c194	25	static AnalogIn *aimoist;
okini3939	0:bdb53686c194	26	static InterruptIn *intin;
okini3939	1:6c7141895545	27	static volatile int count_counter = 0;
okini3939	1:6c7141895545	28	static volatile unsigned long lastCountTime = 0;
okini3939	1:6c7141895545	29	static volatile enum eINPUTTYPE inputtype = INPUT_MOIST;
okini3939	0:bdb53686c194	30
okini3939	0:bdb53686c194	31	float get_light (AnalogIn &ain) {
okini3939	0:bdb53686c194	32	float f;
okini3939	0:bdb53686c194	33
okini3939	0:bdb53686c194	34	f = ain * AREF / 1000; // A
okini3939	0:bdb53686c194	35	return f / 0.0000026; // lx
okini3939	0:bdb53686c194	36	}
okini3939	0:bdb53686c194	37
okini3939	0:bdb53686c194	38	float get_uv (AnalogIn &ain) {
okini3939	0:bdb53686c194	39	float f;
okini3939	0:bdb53686c194	40
okini3939	0:bdb53686c194	41	f = ain * AREF / 100000; // A
okini3939	0:bdb53686c194	42	f = f / 0.000384; // mW/cm2
okini3939	0:bdb53686c194	43	if (f < 0) f = 0;
okini3939	0:bdb53686c194	44	return f;
okini3939	0:bdb53686c194	45	}
okini3939	0:bdb53686c194	46
okini3939	0:bdb53686c194	47	float get_moist (AnalogIn &ain) {
okini3939	0:bdb53686c194	48	float f;
okini3939	0:bdb53686c194	49
okini3939	0:bdb53686c194	50	f = ain * AREF; // V
okini3939	0:bdb53686c194	51	f = f / ((AREF - f) / 10.0); // k ohm
okini3939	0:bdb53686c194	52	if (f < 0) f = 0;
okini3939	0:bdb53686c194	53	return f;
okini3939	0:bdb53686c194	54	}
okini3939	0:bdb53686c194	55
okini3939	0:bdb53686c194	56	void isr_counter () {
okini3939	0:bdb53686c194	57	count_counter ++;
okini3939	0:bdb53686c194	58	}
okini3939	0:bdb53686c194	59
okini3939	0:bdb53686c194	60	float get_counter (char flg) {
okini3939	0:bdb53686c194	61	float t;
okini3939	0:bdb53686c194	62
okini3939	0:bdb53686c194	63	if (flg) {
okini3939	0:bdb53686c194	64	// count
okini3939	0:bdb53686c194	65	t = (float)count_counter;
okini3939	0:bdb53686c194	66	} else {
okini3939	0:bdb53686c194	67	// count/min
okini3939	0:bdb53686c194	68	if (locUpTime > lastCountTime) {
okini3939	0:bdb53686c194	69	t = (float)(locUpTime - lastCountTime) / 6000.0;
okini3939	0:bdb53686c194	70	} else {
okini3939	0:bdb53686c194	71	t = (float)(0xffffffff - lastCountTime + locUpTime) / 6000.0;
okini3939	0:bdb53686c194	72	}
okini3939	0:bdb53686c194	73	t = (float)count_counter / t;
okini3939	0:bdb53686c194	74	}
okini3939	0:bdb53686c194	75	lastCountTime = locUpTime;
okini3939	0:bdb53686c194	76	count_counter = 0;
okini3939	0:bdb53686c194	77	return t;
okini3939	0:bdb53686c194	78	}
okini3939	0:bdb53686c194	79
okini3939	0:bdb53686c194	80	int update_sensor () {
okini3939	0:bdb53686c194	81
okini3939	0:bdb53686c194	82	sensor.sec = time(NULL);
okini3939	0:bdb53686c194	83
okini3939	0:bdb53686c194	84	bmp085.update();
okini3939	0:bdb53686c194	85	sensor.pres = bmp085.get_pressure() + offset.pres;
okini3939	0:bdb53686c194	86	sensor.temp2 = bmp085.get_temperature();
okini3939	0:bdb53686c194	87
okini3939	0:bdb53686c194	88	sht15.update(SHT_high);
okini3939	0:bdb53686c194	89	sensor.temp = sht15.get_temperature() + offset.temp;
okini3939	0:bdb53686c194	90	sensor.humi = sht15.get_humidity() + offset.humi;
okini3939	0:bdb53686c194	91
okini3939	0:bdb53686c194	92	sensor.anemo = wmeters.get_windspeed();
okini3939	0:bdb53686c194	93	sensor.vane = wmeters.get_windvane();
okini3939	0:bdb53686c194	94	sensor.rain = wmeters.get_raingauge();
okini3939	0:bdb53686c194	95
okini3939	0:bdb53686c194	96	sensor.light = get_light(ailight);
okini3939	0:bdb53686c194	97	sensor.uv = get_uv(aiuv);
okini3939	0:bdb53686c194	98
okini3939	1:6c7141895545	99	if (inputtype == INPUT_MOIST) {
okini3939	1:6c7141895545	100	// moist sensor
okini3939	1:6c7141895545	101	sensor.moist = get_moist(*aimoist);
okini3939	1:6c7141895545	102	} else
okini3939	1:6c7141895545	103	if (inputtype == INPUT_MOIST) {
okini3939	0:bdb53686c194	104	// counter
okini3939	0:bdb53686c194	105	sensor.moist = get_counter(inputtype & INPUT_CPM ? 0 : 1);
okini3939	0:bdb53686c194	106	}
okini3939	0:bdb53686c194	107
okini3939	0:bdb53686c194	108	return 0;
okini3939	0:bdb53686c194	109	}
okini3939	0:bdb53686c194	110
okini3939	0:bdb53686c194	111	int init_sensor () {
okini3939	0:bdb53686c194	112	char buf[20];
okini3939	0:bdb53686c194	113
okini3939	0:bdb53686c194	114	memset(&sensor, 0, sizeof(sensor));
okini3939	0:bdb53686c194	115	sensor.sec = time(NULL);
okini3939	0:bdb53686c194	116	sensor_old = sensor;
okini3939	0:bdb53686c194	117	offset = sensor;
okini3939	0:bdb53686c194	118
okini3939	0:bdb53686c194	119	// moist sensor or counter
okini3939	0:bdb53686c194	120	if (cfg.getValue("INPUT", buf, sizeof(buf))) {
okini3939	0:bdb53686c194	121	// counter
okini3939	1:6c7141895545	122	inputtype = (eINPUTTYPE)atoi(buf);
okini3939	1:6c7141895545	123	if (inputtype & (INPUT_FALL\|INPUT_RISE)) {
okini3939	0:bdb53686c194	124	intin->fall(&isr_counter);
okini3939	1:6c7141895545	125	if (inputtype & INPUT_FALL) {
okini3939	1:6c7141895545	126	intin = new InterruptIn(p18);
okini3939	1:6c7141895545	127	}
okini3939	1:6c7141895545	128	if (inputtype & INPUT_RISE) {
okini3939	1:6c7141895545	129	intin = new InterruptIn(p18);
okini3939	1:6c7141895545	130	}
okini3939	0:bdb53686c194	131	}
okini3939	0:bdb53686c194	132	} else {
okini3939	0:bdb53686c194	133	// moist
okini3939	0:bdb53686c194	134	aimoist = new AnalogIn(p18);
okini3939	0:bdb53686c194	135	}
okini3939	0:bdb53686c194	136
okini3939	0:bdb53686c194	137	if (cfg.getValue("OFFSET[P]", buf, sizeof(buf))) {
okini3939	0:bdb53686c194	138	offset.pres = atof(buf);
okini3939	0:bdb53686c194	139	}
okini3939	0:bdb53686c194	140	if (cfg.getValue("OFFSET[T]", buf, sizeof(buf))) {
okini3939	0:bdb53686c194	141	offset.temp = atof(buf);
okini3939	0:bdb53686c194	142	}
okini3939	0:bdb53686c194	143	if (cfg.getValue("OFFSET[H]", buf, sizeof(buf))) {
okini3939	0:bdb53686c194	144	offset.humi = atof(buf);
okini3939	0:bdb53686c194	145	}
okini3939	0:bdb53686c194	146
okini3939	0:bdb53686c194	147	return 0;
okini3939	0:bdb53686c194	148	}
okini3939	0:bdb53686c194	149
okini3939	0:bdb53686c194	150	char format_str (const char fmt, char *buf, int len) {
okini3939	0:bdb53686c194	151	int i, j, flg;
okini3939	0:bdb53686c194	152	char c;
okini3939	0:bdb53686c194	153	float value;
okini3939	0:bdb53686c194	154	time_t sec = time(NULL);
okini3939	0:bdb53686c194	155	struct tm *tim = localtime(&sec);
okini3939	0:bdb53686c194	156
okini3939	0:bdb53686c194	157	j = 0;
okini3939	0:bdb53686c194	158	for (i = 0; i < strlen(fmt) && j < len; i ++) {
okini3939	0:bdb53686c194	159	c = fmt[i];
okini3939	0:bdb53686c194	160	if (c == '%') {
okini3939	0:bdb53686c194	161	flg = 0;
okini3939	0:bdb53686c194	162	i ++;
okini3939	0:bdb53686c194	163	c = fmt[i];
okini3939	0:bdb53686c194	164
okini3939	0:bdb53686c194	165	if (c == '.') {
okini3939	0:bdb53686c194	166	// float format
okini3939	0:bdb53686c194	167	if (fmt[i + 1] >= '0' && fmt[i + 1] <= '9') {
okini3939	0:bdb53686c194	168	flg = fmt[i + 1] - '0';
okini3939	0:bdb53686c194	169	i ++;
okini3939	0:bdb53686c194	170
okini3939	1:6c7141895545	171	// next char
okini3939	0:bdb53686c194	172	c = fmt[i + 1];
okini3939	0:bdb53686c194	173	i ++;
okini3939	0:bdb53686c194	174	}
okini3939	0:bdb53686c194	175	}
okini3939	0:bdb53686c194	176
okini3939	0:bdb53686c194	177	switch (c) {
okini3939	0:bdb53686c194	178	case 'P':
okini3939	0:bdb53686c194	179	value = sensor.pres;
okini3939	0:bdb53686c194	180	break;
okini3939	0:bdb53686c194	181	case 'T':
okini3939	0:bdb53686c194	182	value = sensor.temp;
okini3939	0:bdb53686c194	183	break;
okini3939	0:bdb53686c194	184	case 'H':
okini3939	0:bdb53686c194	185	value = sensor.humi;
okini3939	0:bdb53686c194	186	break;
okini3939	0:bdb53686c194	187	case 'A':
okini3939	0:bdb53686c194	188	value = sensor.anemo;
okini3939	0:bdb53686c194	189	break;
okini3939	0:bdb53686c194	190	case 'V':
okini3939	0:bdb53686c194	191	value = sensor.vane;
okini3939	0:bdb53686c194	192	break;
okini3939	0:bdb53686c194	193	case 'R':
okini3939	0:bdb53686c194	194	value = sensor.rain;
okini3939	0:bdb53686c194	195	break;
okini3939	0:bdb53686c194	196	case 'L':
okini3939	0:bdb53686c194	197	value = sensor.light;
okini3939	0:bdb53686c194	198	break;
okini3939	0:bdb53686c194	199	case 'U':
okini3939	0:bdb53686c194	200	value = sensor.uv;
okini3939	0:bdb53686c194	201	break;
okini3939	0:bdb53686c194	202	case 'M':
okini3939	0:bdb53686c194	203	value = sensor.moist;
okini3939	0:bdb53686c194	204	break;
okini3939	0:bdb53686c194	205	case 'p':
okini3939	1:6c7141895545	206	value = sensor.temp2;
okini3939	0:bdb53686c194	207	break;
okini3939	0:bdb53686c194	208
okini3939	0:bdb53686c194	209	case 'y':
okini3939	0:bdb53686c194	210	value = tim->tm_year + 1900;
okini3939	0:bdb53686c194	211	flg = -1;
okini3939	0:bdb53686c194	212	break;
okini3939	0:bdb53686c194	213	case 'm':
okini3939	0:bdb53686c194	214	value = tim->tm_mon;
okini3939	0:bdb53686c194	215	flg = -1;
okini3939	0:bdb53686c194	216	break;
okini3939	0:bdb53686c194	217	case 'd':
okini3939	0:bdb53686c194	218	value = tim->tm_mday;
okini3939	0:bdb53686c194	219	flg = -1;
okini3939	0:bdb53686c194	220	break;
okini3939	0:bdb53686c194	221	case 'h':
okini3939	0:bdb53686c194	222	value = tim->tm_hour;
okini3939	0:bdb53686c194	223	flg = -1;
okini3939	0:bdb53686c194	224	break;
okini3939	0:bdb53686c194	225	case 'i':
okini3939	0:bdb53686c194	226	value = tim->tm_min;
okini3939	0:bdb53686c194	227	flg = -1;
okini3939	0:bdb53686c194	228	break;
okini3939	0:bdb53686c194	229	case 's':
okini3939	0:bdb53686c194	230	value = tim->tm_sec;
okini3939	0:bdb53686c194	231	flg = -1;
okini3939	0:bdb53686c194	232	break;
okini3939	0:bdb53686c194	233
okini3939	0:bdb53686c194	234	case '0':
okini3939	0:bdb53686c194	235	case '1':
okini3939	0:bdb53686c194	236	case '2':
okini3939	0:bdb53686c194	237	case '3':
okini3939	0:bdb53686c194	238	case '4':
okini3939	0:bdb53686c194	239	case '5':
okini3939	0:bdb53686c194	240	case '6':
okini3939	0:bdb53686c194	241	case '7':
okini3939	0:bdb53686c194	242	case '8':
okini3939	0:bdb53686c194	243	case '9':
okini3939	0:bdb53686c194	244	// Ascii code
okini3939	0:bdb53686c194	245	c = c - '0';
okini3939	0:bdb53686c194	246	if (fmt[i + 1] >= '0' && fmt[i + 1] <= '9') {
okini3939	0:bdb53686c194	247	c = (c << 3) \| (fmt[i + 1] - '0');
okini3939	0:bdb53686c194	248	i ++;
okini3939	0:bdb53686c194	249	if (fmt[i + 1] >= '0' && fmt[i + 1] <= '9') {
okini3939	0:bdb53686c194	250	c = (c << 3) \| (fmt[i + 1] - '0');
okini3939	0:bdb53686c194	251	i ++;
okini3939	0:bdb53686c194	252	}
okini3939	0:bdb53686c194	253	}
okini3939	0:bdb53686c194	254	buf[j] = c;
okini3939	0:bdb53686c194	255	j ++;
okini3939	0:bdb53686c194	256	continue;
okini3939	0:bdb53686c194	257
okini3939	1:6c7141895545	258	case 'n':
okini3939	1:6c7141895545	259	buf[j] = '\n';
okini3939	1:6c7141895545	260	j ++;
okini3939	1:6c7141895545	261	continue;
okini3939	1:6c7141895545	262	case 'r':
okini3939	1:6c7141895545	263	buf[j] = '\r';
okini3939	1:6c7141895545	264	j ++;
okini3939	1:6c7141895545	265	continue;
okini3939	0:bdb53686c194	266	default:
okini3939	0:bdb53686c194	267	buf[j] = c;
okini3939	0:bdb53686c194	268	j ++;
okini3939	0:bdb53686c194	269	continue;
okini3939	0:bdb53686c194	270	}
okini3939	0:bdb53686c194	271
okini3939	0:bdb53686c194	272	switch (flg) {
okini3939	0:bdb53686c194	273	case 1:
okini3939	0:bdb53686c194	274	sprintf(&buf[j], "%.1f", value);
okini3939	0:bdb53686c194	275	break;
okini3939	0:bdb53686c194	276	case 2:
okini3939	0:bdb53686c194	277	sprintf(&buf[j], "%.2f", value);
okini3939	0:bdb53686c194	278	break;
okini3939	0:bdb53686c194	279	case -1:
okini3939	0:bdb53686c194	280	sprintf(&buf[j], "%02d", (int)value);
okini3939	0:bdb53686c194	281	break;
okini3939	0:bdb53686c194	282	default:
okini3939	0:bdb53686c194	283	sprintf(&buf[j], "%d", (int)value);
okini3939	0:bdb53686c194	284	break;
okini3939	0:bdb53686c194	285	}
okini3939	0:bdb53686c194	286	j = strlen(buf);
okini3939	0:bdb53686c194	287	} else {
okini3939	0:bdb53686c194	288	// plain
okini3939	0:bdb53686c194	289	buf[j] = c;
okini3939	0:bdb53686c194	290	j ++;
okini3939	0:bdb53686c194	291	}
okini3939	0:bdb53686c194	292	}
okini3939	0:bdb53686c194	293	buf[j] = 0;
okini3939	0:bdb53686c194	294	return buf;
okini3939	0:bdb53686c194	295	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	04 Jul 2011
Imports:	120
Forks:	0
Commits:	9
Dependents:	0
Dependencies:	12
Followers:	8

sensor.cpp@1:6c7141895545, 2011-07-10 (annotated)

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