TCM 218943 weather station support

CMakeConfig.txt

@@ -77,6 +77,7 @@ set(PROTOCOL_SECUDO_SMOKE ON CACHE BOOL "support for Secudo/FlammEx smoke sensor
 set(PROTOCOL_SELECTREMOTE ON CACHE BOOL "support for the Selectremote switch protocol")
 set(PROTOCOL_SILVERCREST ON CACHE BOOL "support for the Silvercrest switch protocol")
 set(PROTOCOL_SUNRISESET ON CACHE BOOL "support for the Sunrise / Sunset calculator")
+set(PROTOCOL_TCM ON CACHE BOOL "support for the TCM 218943 weather station protocol")
 set(PROTOCOL_TECHLICO ON CACHE BOOL "support for TechLiCo Lamps protocol")
 set(PROTOCOL_TEKNIHALL ON CACHE BOOL "support for the Teknihall weather station protocol")
 set(PROTOCOL_TFA ON CACHE BOOL "support for the TFA weather station protocol")

libs/pilight/protocols/433.92/CMakeExclude.txt

@@ -245,3 +245,8 @@ if(${PROTOCOL_SECUDO_SMOKE} MATCHES "OFF")
 	list(REMOVE_ITEM ${PROJECT_NAME}_sources "${PROJECT_SOURCE_DIR}/secudo_smoke.c")
 	list(REMOVE_ITEM ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/secudo_smoke_h")
 endif()
+
+if(${PROTOCOL_TCM} MATCHES "OFF")
+	list(REMOVE_ITEM ${PROJECT_NAME}_sources "${PROJECT_SOURCE_DIR}/tcm.c")
+	list(REMOVE_ITEM ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/tcm.h")
+endif()

libs/pilight/protocols/433.92/tcm.c

@@ -0,0 +1,225 @@
+/*
+	Copyright (C) 2016 Puuu
+
+	This file is part of pilight.
+
+	pilight is free software: you can redistribute it and/or modify it under the
+	terms of the GNU General Public License as published by the Free Software
+	Foundation, either version 3 of the License, or (at your option) any later
+	version.
+
+	pilight is distributed in the hope that it will be useful, but WITHOUT ANY
+	WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+	A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with pilight. If not, see	<http://www.gnu.org/licenses/>
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "../../core/pilight.h"
+#include "../../core/common.h"
+#include "../../core/dso.h"
+#include "../../core/log.h"
+#include "../protocol.h"
+#include "../../core/binary.h"
+#include "../../core/gc.h"
+#include "tcm.h"
+
+#define PULSE_MULTIPLIER	8
+#define MIN_PULSE_LENGTH	220
+#define MAX_PULSE_LENGTH	250
+#define AVG_PULSE_LENGTH	235
+#define RAW_LENGTH		74
+
+/*
+	protocol description: http://forum.arduino.cc/index.php?topic=136836.0 (german)
+	Bit
+	1-8	sensor id, will change on battery exchange
+	9	low battery indicator
+	12	1 indicates TX button press on sensor
+	17-24	humidity
+	25-36	temperature
+*/
+
+typedef struct settings_t {
+	double id;
+	double temp;
+	double humi;
+	struct settings_t *next;
+} settings_t;
+
+static struct settings_t *settings = NULL;
+
+static int validate(void) {
+	if(tcm->rawlen == RAW_LENGTH) {
+		if(tcm->raw[tcm->rawlen-1] >= (MIN_PULSE_LENGTH*PULSE_DIV) &&
+		   tcm->raw[tcm->rawlen-1] <= (MAX_PULSE_LENGTH*PULSE_DIV)) {
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static void parseCode(void) {
+	double humi_offset = 0.0, temp_offset = 0.0;
+	double temperature = 0.0, humidity = 0.0;
+	int binary[RAW_LENGTH/2];
+	int id = 0, temp = 0, button = 0, battery = 0;
+	int i = 0, x = 0;
+
+	if(tcm->rawlen>RAW_LENGTH) {
+		logprintf(LOG_ERR, "tcm: parsecode - invalid parameter passed %d", tcm->rawlen);
+		return;
+	}
+
+	for(x=1;x<tcm->rawlen-2;x+=2) {
+		if(tcm->raw[x] > AVG_PULSE_LENGTH*PULSE_MULTIPLIER) {
+			binary[i++] = 1;
+		} else {
+			binary[i++] = 0;
+		}
+	}
+
+	id = binToDecRev(binary, 0, 7);
+	battery = !binary[8];
+	button = binary[11];
+
+	humidity = binToDecRev(binary, 16, 23);
+
+	temp = binToDecRev(binary, 24, 35);
+	temperature = temp;
+
+	struct settings_t *tmp = settings;
+	while(tmp) {
+		if(fabs(tmp->id-id) < EPSILON) {
+			humi_offset = tmp->humi;
+			temp_offset = tmp->temp;
+			break;
+		}
+		tmp = tmp->next;
+	}
+
+	temperature += temp_offset;
+	humidity += humi_offset;
+
+	tcm->message = json_mkobject();
+	json_append_member(tcm->message, "id", json_mknumber(id, 0));
+	json_append_member(tcm->message, "temperature", json_mknumber(temperature/10, 1));
+	json_append_member(tcm->message, "humidity", json_mknumber(humidity, 0));
+	json_append_member(tcm->message, "battery", json_mknumber(battery, 0));
+	json_append_member(tcm->message, "button", json_mknumber(button, 0));
+}
+
+static int checkValues(struct JsonNode *jvalues) {
+	struct JsonNode *jid = NULL;
+
+	if((jid = json_find_member(jvalues, "id"))) {
+		struct settings_t *snode = NULL;
+		struct JsonNode *jchild = NULL;
+		struct JsonNode *jchild1 = NULL;
+		double id = -1;
+		int match = 0;
+
+		jchild = json_first_child(jid);
+		while(jchild) {
+			jchild1 = json_first_child(jchild);
+			while(jchild1) {
+				if(strcmp(jchild1->key, "id") == 0) {
+					id = jchild1->number_;
+				}
+				jchild1 = jchild1->next;
+			}
+			jchild = jchild->next;
+		}
+
+		struct settings_t *tmp = settings;
+		while(tmp) {
+			if(fabs(tmp->id-id) < EPSILON) {
+				match = 1;
+				break;
+			}
+			tmp = tmp->next;
+		}
+
+		if(match == 0) {
+			if((snode = MALLOC(sizeof(struct settings_t))) == NULL) {
+				fprintf(stderr, "out of memory\n");
+				exit(EXIT_FAILURE);
+			}
+			snode->id = id;
+			snode->temp = 0;
+			snode->humi = 0;
+
+			json_find_number(jvalues, "temperature-offset", &snode->temp);
+			json_find_number(jvalues, "humidity-offset", &snode->humi);
+
+			snode->next = settings;
+			settings = snode;
+		}
+	}
+	return 0;
+}
+
+static void gc(void) {
+	struct settings_t *tmp = NULL;
+	while(settings) {
+		tmp = settings;
+		settings = settings->next;
+		FREE(tmp);
+	}
+	if(settings != NULL) {
+		FREE(settings);
+	}
+}
+
+#if !defined(MODULE) && !defined(_WIN32)
+__attribute__((weak))
+#endif
+void tcmInit(void) {
+	protocol_register(&tcm);
+	protocol_set_id(tcm, "tcm");
+	protocol_device_add(tcm, "tcm", "TCM 218943 weather stations");
+	tcm->devtype = WEATHER;
+	tcm->hwtype = RF433;
+	tcm->maxgaplen = MAX_PULSE_LENGTH*PULSE_DIV;
+	tcm->mingaplen = MIN_PULSE_LENGTH*PULSE_DIV;
+	tcm->minrawlen = RAW_LENGTH;
+	tcm->maxrawlen = RAW_LENGTH;
+
+	options_add(&tcm->options, 't', "temperature", OPTION_HAS_VALUE, DEVICES_VALUE, JSON_NUMBER, NULL, "^[0-9]{1,3}$");
+	options_add(&tcm->options, 'i', "id", OPTION_HAS_VALUE, DEVICES_ID, JSON_NUMBER, NULL, "[0-9]");
+	options_add(&tcm->options, 'h', "humidity", OPTION_HAS_VALUE, DEVICES_VALUE, JSON_NUMBER, NULL, "[0-9]");
+	options_add(&tfa->options, 'b', "battery", OPTION_HAS_VALUE, DEVICES_VALUE, JSON_NUMBER, NULL, "^[01]$");
+
+	options_add(&tcm->options, 0, "temperature-offset", OPTION_HAS_VALUE, DEVICES_SETTING, JSON_NUMBER, (void *)0, "[0-9]");
+	options_add(&tcm->options, 0, "humidity-offset", OPTION_HAS_VALUE, DEVICES_SETTING, JSON_NUMBER, (void *)0, "[0-9]");
+	options_add(&tcm->options, 0, "temperature-decimals", OPTION_HAS_VALUE, GUI_SETTING, JSON_NUMBER, (void *)2, "[0-9]");
+	options_add(&tcm->options, 0, "humidity-decimals", OPTION_HAS_VALUE, GUI_SETTING, JSON_NUMBER, (void *)2, "[0-9]");
+	options_add(&tcm->options, 0, "show-humidity", OPTION_HAS_VALUE, GUI_SETTING, JSON_NUMBER, (void *)1, "^[10]{1}$");
+	options_add(&tcm->options, 0, "show-temperature", OPTION_HAS_VALUE, GUI_SETTING, JSON_NUMBER, (void *)1, "^[10]{1}$");
+	options_add(&tfa->options, 0, "show-battery", OPTION_HAS_VALUE, GUI_SETTING, JSON_NUMBER, (void *)1, "^[10]{1}$");
+
+	tcm->parseCode=&parseCode;
+	tcm->checkValues=&checkValues;
+	tcm->validate=&validate;
+	tcm->gc=&gc;
+}
+
+#if defined(MODULE) && !defined(_WIN32)
+void compatibility(struct module_t *module) {
+	module->name = "tcm";
+	module->version = "1.0";
+	module->reqversion = "6.0";
+	module->reqcommit = "84";
+}
+
+void init(void) {
+	tcmInit();
+}
+#endif

libs/pilight/protocols/433.92/tcm.h

@@ -0,0 +1,27 @@
+/*
+	Copyright (C) 2016 Puuu
+
+	This file is part of pilight.
+
+	pilight is free software: you can redistribute it and/or modify it under the
+	terms of the GNU General Public License as published by the Free Software
+	Foundation, either version 3 of the License, or (at your option) any later
+	version.
+
+	pilight is distributed in the hope that it will be useful, but WITHOUT ANY
+	WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+	A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with pilight. If not, see	<http://www.gnu.org/licenses/>
+*/
+
+#ifndef _PROTOCOL_TCM_H_
+#define _PROTOCOL_TCM_H_
+
+#include "../protocol.h"
+
+struct protocol_t *tcm;
+void tcmInit(void);
+
+#endif