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10
Readme.md
View File

@ -3,7 +3,7 @@ located in IKEAs Vindriktning
after this upgrade it will measure:
* air quality
* temperature
* temperatur
* pressure
* altitude
@ -39,10 +39,10 @@ VCC | GND
```
The following pins are used:
* GPIO4 PM1006 particle sensor PIN REST on Vindriktning board
* GPIO2 WS2812 stripe out of three LEDs, replacing the original LEDs at front
* GPIO4 PM1006 particle sensor
* GPIO2 WS2812 stripe out of three LEDs, replacing the orignal LEDs at front
* GPIO15 Red LED (optional)
* GPIO12 Green LED (optional) Used as 3.3V Supply for the I2C sensor
* GPIO12 Green LED (optional)
* GPIO13 Blue LED (optional)
* GPIO13 VCC of I2C (3.3 V)
* GPIO14 I2C clock
@ -55,6 +55,4 @@ The following pins are used:
* some wire
# Sources
For the Witty board
* [https://github.com/amkuipers/witty Witty pinout]
* [https://arduino.ua/products_pictures/large_AOC361-5.jpg Schematics]

2
host/Readme.md
View File

@ -27,7 +27,7 @@ usage: ota_updater.py [-h] -l BROKER_HOST -p BROKER_PORT [-u BROKER_USERNAME]
[-d BROKER_PASSWORD] [-t BASE_TOPIC] -i DEVICE_ID
firmware
ota firmware update script for ESP8226 implementation of the Homie mqtt IoT
ota firmware update scirpt for ESP8226 implemenation of the Homie mqtt IoT
convention.
positional arguments:

3
host/spelling.sh
View File

@ -7,6 +7,5 @@ if [ $? -ne 0 ]; then
fi
codespell -w ../src/*
codespell -w ../include/*
codespell -w ../*.md
codespell -w *.md
codespell ../Readme.md
exit 0

4
include/HomieSettings.h
View File

@ -12,7 +12,7 @@
#ifndef HOMIE_SETTINGS
#define HOMIE_SETTINGS
#define HOMIE_FIRMWARE_NAME "RoomSensor"
#define HOMIE_FIRMWARE_VERSION "2.3.0"
#define HOMIE_FIRMWARE_NAME "Vindriktning"
#define HOMIE_FIRMWARE_VERSION "1.2.1"
#endif

10
platformio.ini
View File

@ -12,17 +12,11 @@
platform = espressif8266
board = d1_mini
framework = arduino
build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY -D BME680
; build_flag needs define the Bosch sensor...
; -D BMP280
;or
; -D BME680
build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
; the latest development branch (convention V3.0.x)
lib_deps = https://github.com/homieiot/homie-esp8266.git#develop
EspSoftwareSerial
NeoPixel
adafruit/Adafruit BMP280 Library @ ^2.4.2
adafruit/Adafruit BME680 Library @ ^2.0.1
upload_port = /dev/ttyUSB0
upload_port = /dev/ttyUSB1

275
src/main.cpp
View File

@ -18,15 +18,7 @@
#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#include <Adafruit_Sensor.h>
#ifdef BME680
#include "Adafruit_BME680.h"
#else
#ifdef BMP280
#include "Adafruit_BMP280.h"
#else
#error "Decition, which BMx??? is used missing"
#endif
#endif
/******************************************************************************
* DEFINES
@ -36,24 +28,20 @@
#define SENSOR_PM1006_RX D2 /**< GPIO4 */
#define SENSOR_PM1006_TX -1 /**< Unused */
#define WITTY_RGB_R D8 /**< GPIO15 */
#define WITTY_RGB_G D6 /**< GPIO12 Used as 3.3V Power supply for the I2C Sensor */
#define WITTY_RGB_G D6 /**< GPIO12 */
#define WITTY_RGB_B D7 /**< GPIO13 */
#define PM1006_BIT_RATE 9600
#define PM1006_MQTT_UPDATE 30000 /**< Check the sensor every 30 seconds; New measurement is done every 20seconds by the PM1006 sensor */
#define PM1006_MQTT_UPDATE 5000 /**< Check the sensor every 10 seconds; New measurement is done every 20seconds by the sensor */
#define PIXEL_COUNT 3
#define GPIO_BUTTON SENSOR_PM1006_RX /**< Button and software serial share one pin on Witty board */
#define SENSOR_I2C_SCK D5 /**< GPIO14 - I2C clock pin */
#define SENSOR_I2C_SDI D1 /**< GPIO5 - I2C data pin */
#define SENSOR_I2C_SCK D1 /**< GPIO14 - I2C clock pin */
#define SENSOR_I2C_SDI D5 /**< GPIO5 - I2C data pin */
#define PM1006_BIT_RATE 9600
#define PM1006_MQTT_UPDATE 5000 /**< Check the sensor every 10 seconds; New measurement is done every 20seconds by the sensor */
#define SEALEVELPRESSURE_HPA (1013.25)
#define BUTTON_MAX_CYCLE 10000U /**< Action: Reset configuration */
#define BUTTON_MIN_ACTION_CYCLE 55U /**< Minimum cycle to react on the button (e.g. 5 second) */
#define BUTTON_CHECK_INTERVALL 100U /**< Check every 100 ms the button state */
#define MIN_MEASURED_CYCLES 2
#define PM_MAX 1001 /**< According datasheet https://en.gassensor.com.cn/ParticulateMatterSensor/info_itemid_105.html 1000 is the maximum */
#define LOG_TOPIC "log\0"
#define MQTT_LEVEL_ERROR 1
#define MQTT_LEVEL_WARNING 10
@ -74,8 +62,6 @@
strcat(topic, "/"); \
strcat(topic, test);
#define PERCENT2FACTOR(b, a) ((b * a.get()) / 100)
#define NUMBER_TYPE "Number"
#define NODE_PARTICLE "particle"
#define NODE_TEMPERATUR "temp"
@ -84,8 +70,6 @@
#define NODE_GAS "gas"
#define NODE_HUMIDITY "humidity"
#define NODE_AMBIENT "ambient"
#define NODE_BUTTON "button"
#define SERIAL_RCEVBUF_MAX 80 /**< Maximum 80 characters can be received from the PM1006 sensor */
/******************************************************************************
* TYPE DEFS
******************************************************************************/
@ -102,62 +86,36 @@ void log(int level, String message, int code);
bool mConfigured = false;
bool mConnected = false;
bool mOTAactive = false; /**< Stop sleeping, if OTA is running */
bool mFailedI2Cinitialization = false;
long mLastButtonAction = 0;
/******************************* Sensor data **************************/
HomieNode particle(NODE_PARTICLE, "particle", "number"); /**< Measuret in micro gram per quibik meter air volume */
HomieNode temperaturNode(NODE_TEMPERATUR, "Room Temperature", "number");
HomieNode temperatureNode(NODE_TEMPERATUR, "Room Temperature", "number");
HomieNode pressureNode(NODE_PRESSURE, "Pressure", "number");
HomieNode altitudeNode(NODE_ALTITUDE, "Altitude", "number");
#ifdef BME680
HomieNode gasNode(NODE_GAS, "Gas", "number");
HomieNode humidityNode(NODE_HUMIDITY, "Humidity", "number");
#endif
HomieNode buttonNode(NODE_BUTTON, "Button", "number");
/****************************** Output control ***********************/
HomieNode ledStripNode /* to rule them all */("led", "RGB led", "color");
/************************** Settings ******************************/
HomieSetting<bool> i2cEnable("i2c",
#ifdef BME680
"BME680 sensor present"
#else
#ifdef BMP280
"BMP280 sensor present"
#else
"No I2C sensor specified in the project"
#endif
#endif
);
HomieSetting<bool> rgbTemp("rgbTemp", "Show temperature via red (>20 °C) and blue (< 20°C)");
HomieSetting<long> rgbDim("rgbDim", "Factor (1 to 200%) of the status LEDs");
HomieSetting<long> deepsleep("deepsleep", "Amount of seconds to sleep (default 0 - always online, maximum 4294 - 71 minutes)");
HomieSetting<bool> i2cEnable("i2c", "BME280 sensor present");
HomieSetting<bool> rgbTemp("rgbTemp", "Show temperatur via red (>20 °C) and blue (< 20°C)");
static SoftwareSerial pmSerial(SENSOR_PM1006_RX, SENSOR_PM1006_TX);
#ifdef BME680
Adafruit_BME680 bmx(&Wire); // connected via I2C
#else
#ifdef BMP280
Adafruit_BMP280 bmx; // connected via I2C
#endif
#endif
Adafruit_BME680 bme(&Wire); // connected via I2C
Adafruit_NeoPixel strip(PIXEL_COUNT, GPIO_WS2812, NEO_GRB + NEO_KHZ800);
// Variablen
uint8_t serialRxBuf[SERIAL_RCEVBUF_MAX];
uint8_t serialRxBuf[80];
uint8_t rxBufIdx = 0;
int mParticle_pM25 = 0;
int spm25 = 0;
int last = 0;
unsigned int mButtonPressed = 0;
bool mSomethingReceived = false;
uint32_t mMeasureIndex = 0;
/******************************************************************************
* LOCAL FUNCTIONS
*****************************************************************************/
@ -196,12 +154,7 @@ int getSensorData() {
// Header und Prüfsumme checken
if (serialRxBuf[0] == 0x16 && serialRxBuf[1] == 0x11 && serialRxBuf[2] == 0x0B /* && checksum == 0 */)
{
int pmValue = (serialRxBuf[5] << 8 | serialRxBuf[6]);
if (pmValue > PM_MAX) {
return (-1);
} else {
return pmValue;
}
return (serialRxBuf[5] << 8 | serialRxBuf[6]);
}
else
{
@ -217,84 +170,53 @@ void onHomieEvent(const HomieEvent &event)
{
switch (event.type)
{
case HomieEventType::READY_TO_SLEEP:
if (mOTAactive) {
Homie.getLogger() << "Skip sleeping, as OTA was started" << endl;
return;
} else if (deepsleep.get() > 0) {
long sleepInSeconds = deepsleep.get();
Homie.doDeepSleep(sleepInSeconds * 1000000, RF_NO_CAL);
}
break;
case HomieEventType::MQTT_READY:
mConnected=true;
digitalWrite(WITTY_RGB_R, LOW);
if (!i2cEnable.get()) { /** keep green LED activated to power I2C sensor */
digitalWrite(WITTY_RGB_G, LOW);
log(MQTT_LEVEL_INFO, F("I2C powersupply deactivated"), MQTT_LOG_I2CINIT);
}
digitalWrite(WITTY_RGB_B, LOW);
/* Update LED only, if not sleeping */
if (deepsleep.get() <= 0) {
strip.fill(strip.Color(0,0,PERCENT2FACTOR(127, rgbDim)));
strip.fill(strip.Color(0,0,128));
strip.show();
}
if (mFailedI2Cinitialization) {
log(MQTT_LEVEL_DEBUG,
#ifdef BME680
"Could not find a valid BME680 sensor, check wiring or try a different address!"
#else
#ifdef BMP280
"Could not find a valid BMP280 sensor, check wiring or try a different address!"
#else
"no I2C sensor defined"
#endif
#endif
, MQTT_LOG_I2CINIT);
log(MQTT_LEVEL_DEBUG, F("Could not find a valid BME680 sensor, check wiring or "
"try a different address!"), MQTT_LOG_I2CINIT);
} else {
log(MQTT_LEVEL_INFO, F("BME680 sensor found"), MQTT_LOG_I2CINIT);
}
break;
case HomieEventType::READY_TO_SLEEP:
break;
case HomieEventType::OTA_STARTED:
mOTAactive = true;
break;
case HomieEventType::OTA_SUCCESSFUL:
ESP.restart();
break;
case HomieEventType::WIFI_CONNECTED:
digitalWrite(WITTY_RGB_B, HIGH);
break;
default:
break;
}
}
void bmpPublishValues() {
#ifdef BME680
// Tell BME680 to begin measurement.
unsigned long endTime = bmx.beginReading();
unsigned long endTime = bme.beginReading();
if (endTime == 0) {
log(MQTT_LEVEL_ERROR, "BMX not accessible", MQTT_LOG_I2READ);
log(MQTT_LEVEL_ERROR, F("BME680 not accessable"), MQTT_LOG_I2READ);
return;
}
#endif
// Publish the values
temperaturNode.setProperty(NODE_TEMPERATUR).send(String(bmx.readTemperature()));
pressureNode.setProperty(NODE_PRESSURE).send(String(bmx.readPressure() / 100.0F));
altitudeNode.setProperty(NODE_ALTITUDE).send(String(bmx.readAltitude(SEALEVELPRESSURE_HPA)));
#ifdef BME680
gasNode.setProperty(NODE_GAS).send(String((bmx.gas_resistance / 1000.0)));
humidityNode.setProperty(NODE_HUMIDITY).send(String(bmx.humidity));
#endif
log(MQTT_LEVEL_DEBUG, String("Temp" + String(bmx.readTemperature()) + "\tPressure:" +
String(bmx.readPressure() / 100.0F) + "\t Altitude:"+
String(bmx.readAltitude(SEALEVELPRESSURE_HPA))), MQTT_LOG_I2READ);
temperatureNode.setProperty(NODE_TEMPERATUR).send(String(bme.readTemperature()));
pressureNode.setProperty(NODE_PRESSURE).send(String(bme.readPressure() / 100.0F));
altitudeNode.setProperty(NODE_ALTITUDE).send(String(bme.readAltitude(SEALEVELPRESSURE_HPA)));
gasNode.setProperty(NODE_GAS).send(String((bme.gas_resistance / 1000.0)));
humidityNode.setProperty(NODE_HUMIDITY).send(String(bme.humidity));
if ( (rgbTemp.get()) && (!mSomethingReceived) ) {
if (bmx.readTemperature() < TEMPBORDER) {
strip.setPixelColor(0, strip.Color(0,0,PERCENT2FACTOR(127, rgbDim)));
if (bme.readTemperature() < TEMPBORDER) {
strip.setPixelColor(0, strip.Color(0,0,255));
} else {
strip.setPixelColor(0, strip.Color(PERCENT2FACTOR(127, rgbDim),0,0));
strip.setPixelColor(0, strip.Color(255,0,0));
}
strip.show();
}
@ -315,16 +237,16 @@ void loopHandler()
{
static long lastRead = 0;
if ((millis() - lastRead) > PM1006_MQTT_UPDATE) {
mParticle_pM25 = getSensorData();
if (mParticle_pM25 >= 0) {
particle.setProperty(NODE_PARTICLE).send(String(mParticle_pM25));
int pM25 = getSensorData();
if (pM25 >= 0) {
particle.setProperty(NODE_PARTICLE).send(String(pM25));
if (!mSomethingReceived) {
if (mParticle_pM25 < 35) {
strip.fill(strip.Color(0, PERCENT2FACTOR(127, rgbDim), 0)); /* green */
} else if (mParticle_pM25 < 85) {
strip.fill(strip.Color(PERCENT2FACTOR(127, rgbDim), PERCENT2FACTOR(64, rgbDim), 0)); /* orange */
if (pM25 < 35) {
strip.fill(strip.Color(0, 255, 0)); /* green */
} else if (pM25 < 85) {
strip.fill(strip.Color(255, 127, 0)); /* orange */
} else {
strip.fill(strip.Color(PERCENT2FACTOR(127, rgbDim), 0, 0)); /* red */
strip.fill(strip.Color(255, 0, 0)); /* red */
}
strip.show();
}
@ -335,27 +257,8 @@ void loopHandler()
bmpPublishValues();
}
mMeasureIndex++;
/* Clean cycles buttons */
if (mButtonPressed <= BUTTON_MIN_ACTION_CYCLE) {
buttonNode.setProperty(NODE_BUTTON).send("0");
}
lastRead = millis();
/* If nothing needs to be done, sleep and the time is ready for sleeping */
if (mMeasureIndex > MIN_MEASURED_CYCLES && (deepsleep.get() > 0) ) {
Homie.prepareToSleep();
delay(100);
}
}
/* if the user sees something via the LEDs, inform MQTT, too */
if (mButtonPressed > BUTTON_MIN_ACTION_CYCLE) {
buttonNode.setProperty(NODE_BUTTON).send(String(mButtonPressed));
}
// Feed the dog -> ESP stay alive
ESP.wdtFeed();
}
@ -365,20 +268,14 @@ void loopHandler()
bool ledHandler(const HomieRange& range, const String& value) {
if (range.isRange) return false; // only one switch is present
Homie.getLogger() << "Received: " << (value) << endl;
if (value.equals("250,250,250")) {
mSomethingReceived = false; // enable animation again
ledStripNode.setProperty(NODE_AMBIENT).send(value);
return true;
} else {
mSomethingReceived = true; // Stop animation
int sep1 = value.indexOf(',');
int sep2 = value.indexOf(',', sep1 + 1);
if ((sep1 > 0) && (sep2 > 0)) {
int red = value.substring(0,sep1).toInt();
int green = value.substring(sep1 + 1, sep2).toInt();
int blue = value.substring(sep2 + 1, value.length()).toInt();
int red = value.substring(0,sep1).toInt(); /* OpenHAB hue (0-360°) */
int green = value.substring(sep1 + 1, sep2).toInt(); /* OpenHAB saturation (0-100%) */
int blue = value.substring(sep2 + 1, value.length()).toInt(); /* brightness (0-100%) */
uint8_t r = (red * 255) / 250;
uint8_t g = (green *255) / 250;
@ -386,10 +283,9 @@ bool ledHandler(const HomieRange& range, const String& value) {
uint32_t c = strip.Color(r,g,b);
strip.fill(c);
strip.show();
ledStripNode.setProperty(NODE_AMBIENT).send(value);
ledStripNode.setProperty(NODE_AMBIENT).send(String(r) + "," + String(g) + "," + String(b));
return true;
}
}
return false;
}
@ -416,19 +312,13 @@ void setup()
Homie.onEvent(onHomieEvent);
i2cEnable.setDefaultValue(false);
rgbTemp.setDefaultValue(false);
rgbDim.setDefaultValue(100).setValidator([] (long candidate) {
return (candidate > 1) && (candidate <= 200);
});
deepsleep.setDefaultValue(0).setValidator([] (long candidate) {
return ((candidate >= 0) && (candidate < 4294)); /* between 0 (deactivated) and 71 minutes */
});
memset(serialRxBuf, 0, SERIAL_RCEVBUF_MAX);
memset(serialRxBuf, 0, 80);
pmSerial.begin(PM1006_BIT_RATE);
Homie.setup();
particle.advertise(NODE_PARTICLE).setName("Particle").setDatatype(NUMBER_TYPE).setUnit("micro gram per quibik");
temperaturNode.advertise(NODE_TEMPERATUR).setName("Degrees")
temperatureNode.advertise(NODE_TEMPERATUR).setName("Degrees")
.setDatatype("float")
.setUnit("ºC");
pressureNode.advertise(NODE_PRESSURE).setName("Pressure")
@ -437,70 +327,47 @@ void setup()
altitudeNode.advertise(NODE_ALTITUDE).setName("Altitude")
.setDatatype("float")
.setUnit("m");
#ifdef BME680
gasNode.advertise(NODE_GAS).setName("Gas")
.setDatatype("float")
.setUnit(" KOhms");
humidityNode.advertise(NODE_HUMIDITY).setName("Humidity")
.setDatatype("float")
.setUnit("%");
#endif
ledStripNode.advertise(NODE_AMBIENT).setName("All Leds")
.setDatatype("color").setFormat("rgb")
.settable(ledHandler);
buttonNode.advertise(NODE_BUTTON).setName("Button pressed")
.setDatatype("integer");
strip.begin();
/* activate I2C for BOSCH sensor */
Wire.begin(SENSOR_I2C_SDI, SENSOR_I2C_SCK);
mConfigured = Homie.isConfigured();
digitalWrite(WITTY_RGB_G, HIGH);
if (mConfigured)
{
if (i2cEnable.get()) {
#ifdef BME680
printf("Wait 1 second...\r\n");
delay(1000);
#endif
/* activate I2C for BOSCH sensor */
Wire.begin(SENSOR_I2C_SDI, SENSOR_I2C_SCK);
printf("Wait 50 milliseconds...\r\n");
delay(50);
/* Extracted from library's example */
mFailedI2Cinitialization = !bmx.begin();
if (!mFailedI2Cinitialization) {
strip.fill(strip.Color(0,PERCENT2FACTOR(64, rgbDim),0));
strip.fill(strip.Color(0,128,0));
strip.show();
#ifdef BME680
bmx.setTemperatureOversampling(BME680_OS_8X);
bmx.setHumidityOversampling(BME680_OS_2X);
bmx.setPressureOversampling(BME680_OS_4X);
bmx.setIIRFilterSize(BME680_FILTER_SIZE_3);
bmx.setGasHeater(320, 150); // 320*C for 150 ms
#endif
#ifdef BMP280
/* Default settings from datasheet. */
bmx.setSampling(Adafruit_BMP280::MODE_NORMAL, /* Operating Mode. */
Adafruit_BMP280::SAMPLING_X2, /* Temp. oversampling */
Adafruit_BMP280::SAMPLING_X16, /* Pressure oversampling */
Adafruit_BMP280::FILTER_X16, /* Filtering. */
Adafruit_BMP280::STANDBY_MS_500); /* Standby time. */
#endif
printf("Sensor found on I2C bus\r\n");
/* Extracted from library's example */
mFailedI2Cinitialization = !bme.begin();
if (!mFailedI2Cinitialization) {
bme.setTemperatureOversampling(BME680_OS_8X);
bme.setHumidityOversampling(BME680_OS_2X);
bme.setPressureOversampling(BME680_OS_4X);
bme.setIIRFilterSize(BME680_FILTER_SIZE_3);
bme.setGasHeater(320, 150); // 320*C for 150 ms
} else {
printf("Failed to initialize I2C bus\r\n");
printf("Faild to initialize I2C bus\r\n");
}
}
/* Nothing when sleeping */
if (deepsleep.get() <= 0) {
strip.fill(strip.Color(0,0,0));
for (int i=0;i < (PIXEL_COUNT / 2); i++) {
strip.setPixelColor(0, strip.Color(0,0,128 * rgbDim.get()));
strip.setPixelColor(0, strip.Color(0,0,128));
}
strip.show();
}
digitalWrite(WITTY_RGB_B, HIGH);
} else {
digitalWrite(WITTY_RGB_R, HIGH);
strip.fill(strip.Color(128,0,0));
for (int i=0;i < (PIXEL_COUNT / 2); i++) {
strip.setPixelColor(0, strip.Color(0,0,128));
@ -514,36 +381,19 @@ void loop()
Homie.loop();
/* use the pin, receiving the soft serial additionally as button */
if (digitalRead(GPIO_BUTTON) == LOW) {
if ((millis() - mLastButtonAction) > BUTTON_CHECK_INTERVALL) {
mButtonPressed++;
}
if (mButtonPressed > BUTTON_MIN_ACTION_CYCLE) {
digitalWrite(WITTY_RGB_R, HIGH);
digitalWrite(WITTY_RGB_B, LOW);
strip.fill(strip.Color(0,0,0));
strip.setPixelColor(0, strip.Color((mButtonPressed % 100),0,0));
strip.setPixelColor(1, strip.Color((mButtonPressed / 100),0,0));
strip.setPixelColor(2, strip.Color((mButtonPressed / 100),0,0));
strip.show();
}
} else {
mButtonPressed=0U;
digitalWrite(WITTY_RGB_R, LOW);
}
if (mButtonPressed > BUTTON_MAX_CYCLE) {
if (mButtonPressed > 10000U) {
mButtonPressed=0U;
if (SPIFFS.exists("/homie/config.json")) {
strip.fill(strip.Color(0,PERCENT2FACTOR(127, rgbDim),0));
strip.show();
printf("Resetting config\r\n");
SPIFFS.remove("/homie/config.json");
SPIFFS.end();
delay(50);
Homie.reboot();
} else {
printf("No config present\r\n");
strip.fill(strip.Color(0,0,128));
strip.show();
}
}
}
@ -564,5 +414,4 @@ void log(int level, String message, int statusCode)
Homie.getMqttClient().publish(logTopic, 2, false, buffer.c_str());
delete logTopic;
}
Homie.getLogger() << (level) << "@" << (statusCode) << " " << (message) << endl;
}