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BH1750 upgrades (#2725)

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* BH1750 upgrades

Moved the definitions into the main usermods_list.cpp instead of having a section to copy across.

Added Home Assistant Discovery topic for light sensor.  This is toggleable from the usermod menu.

* Configure pin, other enhancements, readme

Implemented pin manager
Made pins configurable at runtime
Improved info screen outputs
Added F() around strings
Updated readme

* Resolve conflict

* Merge branch 'main'

* Missing comma

Co-authored-by: Christian Schwinne <dev.aircoookie@gmail.com>
Co-authored-by: Christian Schwinne <cschwinne@gmail.com>
This commit is contained in:
albarlow 2022-10-21 02:32:44 +01:00 committed by GitHub
parent 7cac609c06
commit 30a029c19f
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6 changed files with 241 additions and 124 deletions
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16
usermods/BH1750_v2/platformio_override.ini
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@ -1,16 +0,0 @@
; Options
; -------
; USERMOD_BH1750 - define this to have this user mod included wled00\usermods_list.cpp
; USERMOD_BH1750_MAX_MEASUREMENT_INTERVAL - the max number of milliseconds between measurements, defaults to 10000ms
; USERMOD_BH1750_MIN_MEASUREMENT_INTERVAL - the min number of milliseconds between measurements, defaults to 500ms
; USERMOD_BH1750_FIRST_MEASUREMENT_AT - the number of milliseconds after boot to take first measurement, defaults to 10 seconds
; USERMOD_BH1750_OFFSET_VALUE - the offset value to report on, defaults to 1
;
[env:usermod_BH1750_d1_mini]
extends = env:d1_mini
build_flags =
${common.build_flags_esp8266}
-D USERMOD_BH1750
lib_deps =
${env.lib_deps}
claws/BH1750 @ ^1.2.0

43
usermods/BH1750_v2/readme.md
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@ -3,22 +3,47 @@
This usermod will read from an ambient light sensor like the BH1750 sensor.
The luminance is displayed both in the Info section of the web UI as well as published to the `/luminance` MQTT topic if enabled.
## Installation
## Dependencies
- Libraries
- `claws/BH1750 @^1.2.0`
- This must be added under `lib_deps` in your `platformio.ini` (or `platformio_override.ini`).
- Data is published over MQTT - make sure you've enabled the MQTT sync interface.
Copy the example `platformio_override.ini` to the root directory. This file should be placed in the same directory as `platformio.ini`.
## Compiliation
### Define Your Options
To enable, compile with `USERMOD_BH1750` defined (e.g. in `platformio_override.ini`)
```ini
[env:usermod_BH1750_d1_mini]
extends = env:d1_mini
build_flags =
${common.build_flags_esp8266}
-D USERMOD_BH1750
lib_deps =
${esp8266.lib_deps}
claws/BH1750 @ ^1.2.0
```
* `USERMOD_BH1750` - define this to have this user mod included wled00\usermods_list.cpp
### Configuration Options
The following settings can be set at compile-time but are configurable on the usermod menu (except First Measurement time):
* `USERMOD_BH1750_MAX_MEASUREMENT_INTERVAL` - the max number of milliseconds between measurements, defaults to 10000ms
* `USERMOD_BH1750_MIN_MEASUREMENT_INTERVAL` - the min number of milliseconds between measurements, defaults to 500ms
* `USERMOD_BH1750_FIRST_MEASUREMENT_AT` - the number of milliseconds after boot to take first measurement, defaults to 10 seconds
* `USERMOD_BH1750_OFFSET_VALUE` - the offset value to report on, defaults to 1
* `USERMOD_BH1750_FIRST_MEASUREMENT_AT` - the number of milliseconds after boot to take first measurement, defaults to 10 seconds
All parameters can be configured at runtime using Usermods settings page.
In addition, on the Usermod screen allows you to:
- enable/disable the usermod
- Enable Home Assistant Discovery of usermod
- Configure the SCL/SDA pins
### PlatformIO requirements
If you are using `platformio_override.ini`, you should be able to refresh the task list and see your custom task, for example `env:usermod_BH1750_d1_mini`.
## API
The following method is available to interact with the usermod from other code modules:
- `getIlluminance` read the brightness from the sensor
## Change Log
Jul 2022
- Added Home Assistant Discovery
- Implemented PinManager to register pins
- Made pins configurable in usermod menu
- Added API call to read illuminance from other modules
- Enhanced info-screen outputs
- Updated `readme.md`

164
usermods/BH1750_v2/usermod_bh1750.h
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@ -1,3 +1,6 @@
// force the compiler to show a warning to confirm that this file is included
#warning **** Included USERMOD_BH1750 ****
#pragma once
#include "wled.h"
@ -47,6 +50,24 @@ private:
static const char _maxReadInterval[];
static const char _minReadInterval[];
static const char _offset[];
static const char _HomeAssistantDiscovery[];
// set the default pins based on the architecture, these get overridden by Usermod menu settings
#ifdef ARDUINO_ARCH_ESP32 // ESP32 boards
#define HW_PIN_SCL 22
#define HW_PIN_SDA 21
#else // ESP8266 boards
#define HW_PIN_SCL 5
#define HW_PIN_SDA 4
#endif
int8_t ioPin[2] = {HW_PIN_SCL, HW_PIN_SDA}; // I2C pins: SCL, SDA...defaults to Arch hardware pins but overridden at setup()
bool initDone = false;
bool sensorFound = false;
// Home Assistant and MQTT
String mqttLuminanceTopic = F("");
bool mqttInitialized = false;
bool HomeAssistantDiscovery = true; // Publish Home Assistant Discovery messages
BH1750 lightMeter;
float lastLux = -1000;
@ -56,11 +77,58 @@ private:
return isnan(prevValue) || newValue <= prevValue - maxDiff || newValue >= prevValue + maxDiff || (newValue == 0.0 && prevValue > 0.0);
}
// set up Home Assistant discovery entries
void _mqttInitialize()
{
mqttLuminanceTopic = String(mqttDeviceTopic) + F("/brightness");
if (HomeAssistantDiscovery) _createMqttSensor(F("Brightness"), mqttLuminanceTopic, F("Illuminance"), F(" lx"));
}
// Create an MQTT Sensor for Home Assistant Discovery purposes, this includes a pointer to the topic that is published to in the Loop.
void _createMqttSensor(const String &name, const String &topic, const String &deviceClass, const String &unitOfMeasurement)
{
String t = String(F("homeassistant/sensor/")) + mqttClientID + F("/") + name + F("/config");
StaticJsonDocument<600> doc;
doc[F("name")] = String(serverDescription) + F(" ") + name;
doc[F("state_topic")] = topic;
doc[F("unique_id")] = String(mqttClientID) + name;
if (unitOfMeasurement != "")
doc[F("unit_of_measurement")] = unitOfMeasurement;
if (deviceClass != "")
doc[F("device_class")] = deviceClass;
doc[F("expire_after")] = 1800;
JsonObject device = doc.createNestedObject(F("device")); // attach the sensor to the same device
device[F("name")] = serverDescription;
device[F("identifiers")] = "wled-sensor-" + String(mqttClientID);
device[F("manufacturer")] = F("WLED");
device[F("model")] = F("FOSS");
device[F("sw_version")] = versionString;
String temp;
serializeJson(doc, temp);
DEBUG_PRINTLN(t);
DEBUG_PRINTLN(temp);
mqtt->publish(t.c_str(), 0, true, temp.c_str());
}
public:
void setup()
{
Wire.begin();
lightMeter.begin();
bool HW_Pins_Used = (ioPin[0]==HW_PIN_SCL && ioPin[1]==HW_PIN_SDA); // note whether architecture-based hardware SCL/SDA pins used
PinOwner po = PinOwner::UM_BH1750; // defaults to being pinowner for SCL/SDA pins
PinManagerPinType pins[2] = { { ioPin[0], true }, { ioPin[1], true } }; // allocate pins
if (HW_Pins_Used) po = PinOwner::HW_I2C; // allow multiple allocations of HW I2C bus pins
if (!pinManager.allocateMultiplePins(pins, 2, po)) return;
Wire.begin(ioPin[1], ioPin[0]);
sensorFound = lightMeter.begin();
initDone = true;
}
void loop()
@ -90,18 +158,25 @@ public:
lastSend = millis();
if (WLED_MQTT_CONNECTED)
{
char subuf[45];
strcpy(subuf, mqttDeviceTopic);
strcat_P(subuf, PSTR("/luminance"));
mqtt->publish(subuf, 0, true, String(lux).c_str());
if (!mqttInitialized)
{
_mqttInitialize();
mqttInitialized = true;
}
mqtt->publish(mqttLuminanceTopic.c_str(), 0, true, String(lux).c_str());
DEBUG_PRINTLN(F("Brightness: ") + String(lux) + F("lx"));
}
else
{
DEBUG_PRINTLN("Missing MQTT connection. Not publishing data");
DEBUG_PRINTLN(F("Missing MQTT connection. Not publishing data"));
}
}
}
inline float getIlluminance() {
return (float)lastLux;
}
void addToJsonInfo(JsonObject &root)
{
JsonObject user = root[F("u")];
@ -109,28 +184,23 @@ public:
user = root.createNestedObject(F("u"));
JsonArray lux_json = user.createNestedArray(F("Luminance"));
if (!getLuminanceComplete)
{
if (!sensorFound) {
// if no sensor
lux_json.add(F("BH1750 "));
lux_json.add(F("Not Found"));
} else if (!getLuminanceComplete) {
// if we haven't read the sensor yet, let the user know
// that we are still waiting for the first measurement
lux_json.add((USERMOD_BH1750_FIRST_MEASUREMENT_AT - millis()) / 1000);
lux_json.add(F(" sec until read"));
return;
}
} else {
lux_json.add(lastLux);
lux_json.add(F(" lx"));
}
uint16_t getId()
{
return USERMOD_ID_BH1750;
}
/**
* addToConfig() (called from set.cpp) stores persistent properties to cfg.json
*/
// (called from set.cpp) stores persistent properties to cfg.json
void addToConfig(JsonObject &root)
{
// we add JSON object.
@ -138,35 +208,68 @@ public:
top[FPSTR(_enabled)] = !disabled;
top[FPSTR(_maxReadInterval)] = maxReadingInterval;
top[FPSTR(_minReadInterval)] = minReadingInterval;
top[FPSTR(_HomeAssistantDiscovery)] = HomeAssistantDiscovery;
top[FPSTR(_offset)] = offset;
JsonArray io_pin = top.createNestedArray(F("pin"));
for (byte i=0; i<2; i++) io_pin.add(ioPin[i]);
top[F("help4Pins")] = F("SCL,SDA"); // help for Settings page
DEBUG_PRINTLN(F("Photoresistor config saved."));
DEBUG_PRINTLN(F("BH1750 config saved."));
}
/**
* readFromConfig() is called before setup() to populate properties from values stored in cfg.json
*/
// called before setup() to populate properties from values stored in cfg.json
bool readFromConfig(JsonObject &root)
{
int8_t newPin[2]; for (byte i=0; i<2; i++) newPin[i] = ioPin[i]; // prepare to note changed pins
// we look for JSON object.
JsonObject top = root[FPSTR(_name)];
if (top.isNull())
{
DEBUG_PRINT(FPSTR(_name));
DEBUG_PRINT(F("BH1750"));
DEBUG_PRINTLN(F(": No config found. (Using defaults.)"));
return false;
}
bool configComplete = !top.isNull();
configComplete &= getJsonValue(top[FPSTR(_enabled)], disabled, false);
configComplete &= getJsonValue(top[FPSTR(_maxReadInterval)], maxReadingInterval, 10000); //ms
configComplete &= getJsonValue(top[FPSTR(_minReadInterval)], minReadingInterval, 500); //ms
configComplete &= getJsonValue(top[FPSTR(_HomeAssistantDiscovery)], HomeAssistantDiscovery, false);
configComplete &= getJsonValue(top[FPSTR(_offset)], offset, 1);
for (byte i=0; i<2; i++) configComplete &= getJsonValue(top[F("pin")][i], newPin[i], ioPin[i]);
disabled = !(top[FPSTR(_enabled)] | !disabled);
maxReadingInterval = (top[FPSTR(_maxReadInterval)] | maxReadingInterval); // ms
minReadingInterval = (top[FPSTR(_minReadInterval)] | minReadingInterval); // ms
offset = top[FPSTR(_offset)] | offset;
DEBUG_PRINT(FPSTR(_name));
if (!initDone) {
// first run: reading from cfg.json
for (byte i=0; i<2; i++) ioPin[i] = newPin[i];
DEBUG_PRINTLN(F(" config loaded."));
} else {
DEBUG_PRINTLN(F(" config (re)loaded."));
// use "return !top["newestParameter"].isNull();" when updating Usermod with new features
return true;
// changing parameters from settings page
bool pinsChanged = false;
for (byte i=0; i<2; i++) if (ioPin[i] != newPin[i]) { pinsChanged = true; break; } // check if any pins changed
if (pinsChanged) { //if pins changed, deallocate old pins and allocate new ones
PinOwner po = PinOwner::UM_BH1750;
if (ioPin[0]==HW_PIN_SCL && ioPin[1]==HW_PIN_SDA) po = PinOwner::HW_I2C; // allow multiple allocations of HW I2C bus pins
pinManager.deallocateMultiplePins((const uint8_t *)ioPin, 2, po); // deallocate pins
for (byte i=0; i<2; i++) ioPin[i] = newPin[i];
setup();
}
// use "return !top["newestParameter"].isNull();" when updating Usermod with new features
return !top[F("pin")].isNull();
}
return configComplete;
}
uint16_t getId()
{
return USERMOD_ID_BH1750;
}
};
// strings to reduce flash memory usage (used more than twice)
@ -174,4 +277,5 @@ const char Usermod_BH1750::_name[] PROGMEM = "BH1750";
const char Usermod_BH1750::_enabled[] PROGMEM = "enabled";
const char Usermod_BH1750::_maxReadInterval[] PROGMEM = "max-read-interval-ms";
const char Usermod_BH1750::_minReadInterval[] PROGMEM = "min-read-interval-ms";
const char Usermod_BH1750::_HomeAssistantDiscovery[] PROGMEM = "HomeAssistantDiscoveryLux";
const char Usermod_BH1750::_offset[] PROGMEM = "offset-lx";

14
usermods/BH1750_v2/usermods_list.cpp
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@ -1,14 +0,0 @@
#include "wled.h"
/*
* Register your v2 usermods here!
*/
#ifdef USERMOD_BH1750
#include "../usermods/BH1750_v2/usermod_BH1750.h"
#endif
void registerUsermods()
{
#ifdef USERMOD_BH1750
usermods.add(new Usermod_BH1750());
#endif
}

1
wled00/pin_manager.h
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@ -56,6 +56,7 @@ enum struct PinOwner : uint8_t {
UM_RGBRotaryEncoder = USERMOD_RGB_ROTARY_ENCODER, // 0x16 // Usermod "rgb-rotary-encoder.h"
UM_QuinLEDAnPenta = USERMOD_ID_QUINLED_AN_PENTA, // 0x17 // Usermod "quinled-an-penta.h"
UM_BME280 = USERMOD_ID_BME280, // 0x18 // Usermod "usermod_bme280.h -- Uses "standard" HW_I2C pins
UM_BH1750 = USERMOD_ID_BH1750, // 0x19 // Usermod "usermod_bme280.h -- Uses "standard" HW_I2C pins
UM_Audioreactive = USERMOD_ID_AUDIOREACTIVE // 0x1E // Usermod "audio_reactive.h"
};
static_assert(0u == static_cast<uint8_t>(PinOwner::None), "PinOwner::None must be zero, so default array initialization works as expected");

19
wled00/usermods_list.cpp
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@ -30,9 +30,11 @@
#ifdef USERMOD_BUZZER
#include "../usermods/buzzer/usermod_v2_buzzer.h"
#endif
#ifdef USERMOD_SENSORSTOMQTT
#include "../usermods/sensors_to_mqtt/usermod_v2_SensorsToMqtt.h"
#endif
#ifdef USERMOD_PIRSWITCH
#include "../usermods/PIR_sensor_switch/usermod_PIR_sensor_switch.h"
#endif
@ -41,10 +43,15 @@
#include "../usermods/usermod_v2_mode_sort/usermod_v2_mode_sort.h"
#endif
#ifdef USERMOD_BH1750
#include "../usermods/BH1750_v2/usermod_BH1750.h"
#endif
// BME280 v2 usermod. Define "USERMOD_BME280" in my_config.h
#ifdef USERMOD_BME280
#include "../usermods/BME280_v2/usermod_bme280.h"
#endif
#ifdef USERMOD_FOUR_LINE_DISPLAY
#ifdef USE_ALT_DISPlAY
#include "../usermods/usermod_v2_four_line_display_ALT/usermod_v2_four_line_display_ALT.h"
@ -52,6 +59,7 @@
#include "../usermods/usermod_v2_four_line_display/usermod_v2_four_line_display.h"
#endif
#endif
#ifdef USERMOD_ROTARY_ENCODER_UI
#ifdef USE_ALT_DISPlAY
#include "../usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h"
@ -59,6 +67,7 @@
#include "../usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h"
#endif
#endif
#ifdef USERMOD_AUTO_SAVE
#include "../usermods/usermod_v2_auto_save/usermod_v2_auto_save.h"
#endif
@ -159,7 +168,6 @@ void registerUsermods()
* \/ \/ \/
*/
//usermods.add(new MyExampleUsermod());
#ifdef USERMOD_BATTERY_STATUS_BASIC
usermods.add(new UsermodBatteryBasic());
#endif
@ -180,12 +188,18 @@ void registerUsermods()
usermods.add(new BuzzerUsermod());
#endif
#ifdef USERMOD_BH1750
usermods.add(new Usermod_BH1750());
#endif
#ifdef USERMOD_BME280
usermods.add(new UsermodBME280());
#endif
#ifdef USERMOD_SENSORSTOMQTT
usermods.add(new UserMod_SensorsToMQTT());
#endif
#ifdef USERMOD_PIRSWITCH
usermods.add(new PIRsensorSwitch());
#endif
@ -193,12 +207,15 @@ void registerUsermods()
#ifdef USERMOD_MODE_SORT
usermods.add(new ModeSortUsermod());
#endif
#ifdef USERMOD_FOUR_LINE_DISPLAY
usermods.add(new FourLineDisplayUsermod());
#endif
#ifdef USERMOD_ROTARY_ENCODER_UI
usermods.add(new RotaryEncoderUIUsermod()); // can use USERMOD_FOUR_LINE_DISPLAY
#endif
#ifdef USERMOD_AUTO_SAVE
usermods.add(new AutoSaveUsermod()); // can use USERMOD_FOUR_LINE_DISPLAY
#endif