gergely/modular-weather-station
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Move the HTTP server code to a new mode_pull module

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This commit is contained in:
Gergely Polonkai 2021-01-29 11:01:07 +01:00
parent 932e3d5d52
commit 3d249d2e05
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GPG Key ID: 2D2885533B869ED4
5 changed files with 298 additions and 102 deletions
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139
WeatherStation.ino
View File

@ -27,7 +27,6 @@
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266mDNS.h>
#include <ESP8266WebServer.h>
#include "config.h"
@ -50,113 +49,24 @@
char *negotiated_hostname = NULL;
bool hostname_verified = false;
MDNSResponder::hMDNSService mdns_service = NULL;
ESP8266WebServer server(80);
unsigned long last_update = 0;
#ifdef DHT_TYPE
DHT dht(DHT_PIN, DHT_TYPE);
float humidity = 0.0;
#endif // DHT_TYPE
#ifdef RAIN_PIN
bool raining = false;
#endif // RAIN_PIN
#ifdef HAVE_BH1750
BH1750 light;
float light_level = 0;
#endif // HAVE_BH1750
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
float temperature = 0.0;
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef HAVE_BMP180
Adafruit_BMP085 BMP;
uint32_t pressure = 0;
#endif // HAVE_BMP180
static const char TEXT_PLAIN[] PROGMEM = "text/plain";
void
reply_not_found()
{
server.send(404, FPSTR(TEXT_PLAIN), "Not Found");
}
void
send_metrics()
{
static const size_t temperature_size = 117;
static const size_t humidity_size = 111;
static const size_t rain_size = 86;
static const size_t light_size = 72;
static const size_t pressure_size = 82;
size_t message_size =
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
temperature_size +
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
humidity_size +
#endif // DHT_TYPE
#ifdef RAIN_PIN
rain_size +
#endif // RAIN_PIN
#ifdef HAVE_BH1750
light_size +
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
pressure_size +
#endif // HAVE_BMP180
1;
char message[message_size];
snprintf(message, message_size, ""
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
"# HELP temperature_celsius Temperature in degrees Celsius\n"
"# TYPE temperature_celsius gauge\n"
"temperature_celsius %.2f\n"
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
"# HELP relative_humidity Relative humidity, in percents\n"
"# TYPE relative_humidity gauge\n"
"relative_humidity %.2f\n"
#endif // DHT_TYPE
#ifdef RAIN_PIN
"# HELP raining Boolean value checking if it is raining\n"
"# TYPE raining gauge\n"
"raining %d\n"
#endif // RAIN_PIN
#ifdef HAVE_BH1750
"# HELP light Ambient light, in lumens\n"
"# TYPE light gauge\n"
"light %.2f\n"
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
"# HELP pressure Atmospheric pressure, in Pa\n"
"# TYPE pressure gauge\n"
"pressure %d\n"
#endif // HAVE_BMP180
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
, temperature
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
, humidity
#endif // DHT_TYPE
#ifdef RAIN_PIN
, raining ? 1 : 0
#endif // RAIN_PIN
#ifdef HAVE_BH1750
, light_level
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
, pressure
#endif // HAVE_BMP180
);
server.send(200, "text/plain; version=0.0.4; charset=utf-8", message);
}
#if SYSTEM_MODE & MODE_PROM_PULL
#include "mode_pull.h"
PWSModePull mode(80);
#endif
void
stop()
@ -231,10 +141,7 @@ setup()
stop();
}
server.on("/metrics", HTTP_GET, send_metrics);
server.onNotFound(reply_not_found);
server.begin();
mode.begin();
// Initialize sensors
#ifdef DHT_TYPE
@ -267,6 +174,22 @@ setup()
void
read_sensors()
{
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
float temperature;
#endif
#ifdef DHT_TYPE
float humidity;
#endif
#ifdef RAIN_PIN
bool raining;
#endif
#ifdef HAVE_BH1750
float light_level;
#endif
#ifdef HAVE_BMP180
float pressure;
#endif
// Turn on the LED to indicate that we’re working
digitalWrite(LED_BUILTIN, LOW);
@ -292,6 +215,24 @@ read_sensors()
# endif // !DHT_TYPE
#endif // HAVE_BMP180
mode.sendValues(
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
temperature,
#endif
#ifdef DHT_TYPE
humidity,
#endif
#ifdef RAIN_PIN
raining,
#endif
#ifdef HAVE_BH1750
light,
#endif
#ifdef HAVE_BMP180
pressure,
#endif
0);
// Turn off the LED to indicate work is finished
digitalWrite(LED_BUILTIN, HIGH);
}
@ -302,7 +243,7 @@ loop()
unsigned long now = millis();
MDNS.update();
server.handleClient();
mode.loop();
if (now - last_update >= 5000) {
read_sensors();

14
config.h.sample
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@ -30,11 +30,19 @@
#define WIFI_SSID "YourWiFiName"
#define WIFI_PASS "YourWiFiPass"
// The mDNS hostname you want this station to be visible as. This should be
// different for each station you install (e.g. if you want to measure the
// temperature and humidity of each room separately)
// The system name will be the name your station is available as. This
// should be different for each station you install (e.g. if you want to
// measure the temperature and humidity of each room separately)
//
// If mDNS is enabled (ie. in HTTP pull mode), this will be the advertised
// hostname.
//
// If MQTT is enabled, this will be the MQTT client ID.
#define SYSTEM_NAME "internal-hostname"
// The mode this system should run in. See consts.h for the available values.
#define SYSTEM_MODE MODE_PULL
// If you have a DHT temperature+humidity sensor of this type will be used,
// remove the #undef line and uncomment one of DHT11 or DHT22. You also have
// to define the PIN your DHT sensor’s data (usually marked as DAT) is

40
consts.h Normal file
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@ -0,0 +1,40 @@
/*
* consts.h - Constants for the ModularWeatherStation
*
* Copyright (C) 2021 Gergely Polonkai
* Author: Gergely POLONKAI <gergely@polonkai.eu>
*
* ModularWeatherStation 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.
*
* ModularWeatherStation 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* As additional permission under GNU GPL version 3 section 7, you may
* distribute non-source form of the Program without the copy of the
* GNU GPL normally required by section 4, provided you inform the
* receipents of GNU GPL by a written offer.
*
*/
// Prometheus Pull mode. A Prometheus instance has to be configured to
// regularly pull values from the station.
#define MODE_PROM_PULL 1
// Prometheus Push mode. A Prometheus Push Gateway instance has to be
// configured in config.h where the station can regularly push values.
//
// It purposefully conflicts with MODE_PROM_PULL; the weather station code
// checks only for bit 1 to be present and if it is, it ignores bit 0
#define MODE_PROM_PUSH 3
// MQTT mode. An MQTT broker address must be configured in config.h where
// the station can push values.
#define MODE_MQTT 4

176
mode_pull.cpp Normal file
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@ -0,0 +1,176 @@
#include <ESP8266WebServer.h>
#include "mode_pull.h"
#include "config.h"
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
float _temperature;
#endif
#ifdef DHT_TYPE
float _humidity;
#endif
#ifdef HAVE_BH1750
float _light;
#endif
#ifdef HAVE_BMP180
float _pressure;
#endif
#ifdef RAIN_PIN
bool _raining;
#endif
static const char MIME_TEXT[] PROGMEM = "text/plain";
static const char MIME_METRICS[] PROGMEM = "text/plain; version=0.0.4; charset=utf-8";
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
# define TEMPL_TEMPERATURE \
"# HELP temperature_celsius Temperature in degrees Celsius\n" \
"# TYPE temperature_celsius gauge\n" \
"temperature_celsius %.2f\n"
#endif
#ifdef DHT_TYPE
# define TEMPL_HUMIDITY \
"# HELP relative_humidity Relative humidity, in percents\n" \
"# TYPE relative_humidity gauge\n" \
"relative_humidity %.2f\n"
#endif
#ifdef RAIN_PIN
# define TEMPL_RAIN \
"# HELP raining Boolean value checking if it is raining\n" \
"# TYPE raining gauge\n" \
"raining %d\n"
#endif
#ifdef HAVE_BH1750
# define TEMPL_LIGHT \
"# HELP light Ambient light, in lumens\n" \
"# TYPE light gauge\n" \
"light %.2f\n"
#endif
#ifdef HAVE_BMP180
# define TEMPL_PRESSURE \
"# HELP pressure Atmospheric pressure, in Pa\n" \
"# TYPE pressure gauge\n" \
"pressure %d\n"
#endif
ESP8266WebServer server;
static void
_replyNotFound()
{
server.send(404, FPSTR(MIME_TEXT), "Not Found");
}
static void
_sendMetrics()
{
size_t message_size =
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
sizeof(TEMPL_TEMPERATURE) +
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
sizeof(TEMPL_HUMIDITY) +
#endif // DHT_TYPE
#ifdef RAIN_PIN
sizeof(TEMPL_RAIN) +
#endif // RAIN_PIN
#ifdef HAVE_BH1750
sizeof(TEMPL_LIGHT) +
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
sizeof(TEMPL_PRESSURE) +
#endif // HAVE_BMP180
1;
char message[message_size];
snprintf(message, message_size, ""
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
TEMPL_TEMPERATURE
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
TEMPL_HUMIDITY
#endif // DHT_TYPE
#ifdef RAIN_PIN
TEMPL_RAIN
#endif // RAIN_PIN
#ifdef HAVE_BH1750
TEMPL_LIGHT
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
TEMPL_PRESSURE
#endif // HAVE_BMP180
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
, _temperature
#endif // defined(DHT_TYPE) || defined(HAVE_BMP180)
#ifdef DHT_TYPE
, _humidity
#endif // DHT_TYPE
#ifdef RAIN_PIN
, _raining ? 1 : 0
#endif // RAIN_PIN
#ifdef HAVE_BH1750
, _light_level
#endif // HAVE_BH1750
#ifdef HAVE_BMP180
, _pressure
#endif // HAVE_BMP180
);
server.send(200, MIME_METRICS, message);
}
PWSModePull::PWSModePull(int port)
{
_port = port;
}
void
PWSModePull::begin()
{
server.on("/metrics", HTTP_GET, _sendMetrics);
server.onNotFound(_replyNotFound);
server.begin(_port);
}
void
PWSModePull::loop()
{
server.handleClient();
}
void
PWSModePull::sendValues(
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
float temperature,
#endif
#ifdef DHT_TYPE
float humidity,
#endif
#ifdef RAIN_PIN
bool raining,
#endif
#ifdef HAVE_BH1750
float light,
#endif
#ifdef HAVE_BMP180
float pressure,
#endif
...)
{
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
_temperature = temperature;
#endif
#ifdef DHT_TYPE
_humidity = humidity;
#endif
#ifdef RAIN_PIN
_raining = raining;
#endif
#ifdef HAVE_BH1750
_light = light;
#endif
#ifdef HAVE_BMP180
_pressure = pressure;
#endif
}

31
mode_pull.h Normal file
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@ -0,0 +1,31 @@
#ifndef __PWS_MODE_PULL_H
# define __PWS_MODE_PULL_H
# include "config.h"
class PWSModePull {
public:
PWSModePull(int port);
void begin();
void loop();
void sendValues(
#if defined(DHT_TYPE) || defined(HAVE_BMP180)
float temperature,
#endif
#ifdef DHT_TYPE
float humidity,
#endif
#ifdef RAIN_PIN
bool raining,
#endif
#ifdef HAVE_BH1750
float light,
#endif
#ifdef HAVE_BMP180
float pressure,
#endif
...);
private:
int _port;
};
#endif // __PWS_MODE_PULL_H