added SN_Photoresistor usermod

This commit is contained in:
Dick Swart 2021-06-02 12:01:06 +12:00
parent 89b2b066ef
commit 344c9e9238
6 changed files with 204 additions and 7 deletions

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; Options
; -------
; USERMOD_SN_PHOTORESISTOR - define this to have this user mod included wled00\usermods_list.cpp
; USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL - the number of milliseconds between measurements, defaults to 60 seconds
; USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT - the number of milliseconds after boot to take first measurement, defaults to 20 seconds
; USERMOD_SN_PHOTORESISTOR_REFERENCE_VOLTAGE - the voltage supplied to the sensor, defaults to 5v
; USERMOD_SN_PHOTORESISTOR_ADC_PRECISION - the ADC precision is the number of distinguishable ADC inputs, defaults to 1024.0 (10 bits)
; USERMOD_SN_PHOTORESISTOR_RESISTOR_VALUE - the resistor size, defaults to 10000.0 (10K hms)
; USERMOD_SN_PHOTORESISTOR_OFFSET_VALUE - the offset value to report on, defaults to 25
;
[env:usermod_sn_photoresistor_d1_mini]
extends = env:d1_mini
build_flags =
${common.build_flags_esp8266}
-D USERMOD_SN_PHOTORESISTOR
lib_deps = ${env.lib_deps}

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# SN_Photoresistor usermod
This usermod will read from an attached photoresistor sensor like the KY-018 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
Copy the example `platformio_override.ini` to the root directory. This file should be placed in the same directory as `platformio.ini`.
### Define Your Options
* `USERMOD_SN_PHOTORESISTOR` - define this to have this user mod included wled00\usermods_list.cpp
* `USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL` - the number of milliseconds between measurements, defaults to 60 seconds
* `USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT` - the number of milliseconds after boot to take first measurement, defaults to 20 seconds
* `USERMOD_SN_PHOTORESISTOR_REFERENCE_VOLTAGE` - the voltage supplied to the sensor, defaults to 5v
* `USERMOD_SN_PHOTORESISTOR_ADC_PRECISION` - the ADC precision is the number of distinguishable ADC inputs, defaults to 1024.0 (10 bits)
* `USERMOD_SN_PHOTORESISTOR_RESISTOR_VALUE` - the resistor size, defaults to 10000.0 (10K hms)
* `USERMOD_SN_PHOTORESISTOR_OFFSET_VALUE` - the offset value to report on, defaults to 25
All parameters can be configured at runtime using Usermods settings page.
## Project link
* [QuinLED-Dig-Uno](https://quinled.info/2018/09/15/quinled-dig-uno/) - Project link
### 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_sn_photoresistor_d1_mini`.
## Change Log

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#pragma once
#include "wled.h"
//Pin defaults for QuinLed Dig-Uno
#define PHOTORESISTOR_PIN A0
// the frequency to check photoresistor, 10 seconds
#ifndef USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL
#define USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL 10000
#endif
// how many seconds after boot to take first measurement, 10 seconds
#ifndef USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT
#define USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT 10000
#endif
// supplied voltage
#ifndef USERMOD_SN_PHOTORESISTOR_REFERENCE_VOLTAGE
#define USERMOD_SN_PHOTORESISTOR_REFERENCE_VOLTAGE 5
#endif
// 10 bits
#ifndef USERMOD_SN_PHOTORESISTOR_ADC_PRECISION
#define USERMOD_SN_PHOTORESISTOR_ADC_PRECISION 1024.0
#endif
// resistor size 10K hms
#ifndef USERMOD_SN_PHOTORESISTOR_RESISTOR_VALUE
#define USERMOD_SN_PHOTORESISTOR_RESISTOR_VALUE 10000.0
#endif
// only report if differance grater than offset value
#ifndef USERMOD_SN_PHOTORESISTOR_OFFSET_VALUE
#define USERMOD_SN_PHOTORESISTOR_OFFSET_VALUE 5
#endif
class Usermod_SN_Photoresistor : public Usermod
{
private:
// set last reading as "40 sec before boot", so first reading is taken after 20 sec
unsigned long lastMeasurement = UINT32_MAX - (USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL - USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT);
// flag to indicate we have finished the first getTemperature call
// allows this library to report to the user how long until the first
// measurement
bool getLuminanceComplete = false;
uint16_t lastLDRValue = -1000;
bool checkBoundSensor(float newValue, float prevValue, float maxDiff)
{
return isnan(prevValue) || newValue <= prevValue - maxDiff || newValue >= prevValue + maxDiff;
}
uint16_t getLuminance()
{
// http://forum.arduino.cc/index.php?topic=37555.0
// https://forum.arduino.cc/index.php?topic=185158.0
float volts = analogRead(PHOTORESISTOR_PIN) * (USERMOD_SN_PHOTORESISTOR_REFERENCE_VOLTAGE / USERMOD_SN_PHOTORESISTOR_ADC_PRECISION);
float amps = volts / USERMOD_SN_PHOTORESISTOR_RESISTOR_VALUE;
float lux = amps * 1000000 * 2.0;
lastMeasurement = millis();
getLuminanceComplete = true;
return uint16_t(lux);
}
public:
void setup()
{
pinMode(PHOTORESISTOR_PIN, INPUT);
}
void loop()
{
unsigned long now = millis();
// check to see if we are due for taking a measurement
// lastMeasurement will not be updated until the conversion
// is complete the the reading is finished
if (now - lastMeasurement < USERMOD_SN_PHOTORESISTOR_MEASUREMENT_INTERVAL)
{
return;
}
uint16_t currentLDRValue = getLuminance();
if (checkBoundSensor(currentLDRValue, lastLDRValue, USERMOD_SN_PHOTORESISTOR_OFFSET_VALUE))
{
lastLDRValue = currentLDRValue;
if (WLED_MQTT_CONNECTED)
{
char subuf[45];
strcpy(subuf, mqttDeviceTopic);
strcat_P(subuf, PSTR("/luminance"));
mqtt->publish(subuf, 0, true, String(lastLDRValue).c_str());
}
else
{
DEBUG_PRINTLN("Missing MQTT connection. Not publishing data");
}
}
}
void addToJsonInfo(JsonObject &root)
{
JsonObject user = root[F("u")];
if (user.isNull()) user = root.createNestedObject(F("u"));
JsonArray lux = user.createNestedArray(F("Luminance"));
if (!getLuminanceComplete)
{
// if we haven't read the sensor yet, let the user know
// that we are still waiting for the first measurement
lux.add((USERMOD_SN_PHOTORESISTOR_FIRST_MEASUREMENT_AT - millis()) / 1000);
lux.add(F(" sec until read"));
return;
}
lux.add(lastLDRValue);
lux.add(F(" lux"));
}
uint16_t getId()
{
return USERMOD_ID_SN_PHOTORESISTOR;
}
};

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#include "wled.h"
/*
* Register your v2 usermods here!
*/
#ifdef USERMOD_SN_PHOTORESISTOR
#include "../usermods/SN_Photoresistor/usermod_sn_photoresistor.h"
#endif
void registerUsermods()
{
#ifdef USERMOD_SN_PHOTORESISTOR
usermods.add(new Usermod_SN_Photoresistor());
#endif
}

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#define USERMOD_ID_ANIMATED_STAIRCASE 14 //Usermod "Animated_Staircase.h"
#define USERMOD_ID_RTC 15 //Usermod "usermod_rtc.h"
#define USERMOD_ID_ELEKSTUBE_IPS 16 //Usermod "usermod_elekstube_ips.h"
#define USERMOD_ID_SN_PHOTORESISTOR 17 //Usermod "usermod_sn_photoresistor.h"
//Access point behavior
#define AP_BEHAVIOR_BOOT_NO_CONN 0 //Open AP when no connection after boot

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#include "../usermods/Temperature/usermod_temperature.h"
#endif
#ifdef USERMOD_SN_PHOTORESISTOR
#include "../usermods/SN_Photoresistor/usermod_sn_photoresistor.h"
#endif
//#include "usermod_v2_empty.h"
#ifdef USERMOD_BUZZER
@ -82,6 +86,10 @@ void registerUsermods()
usermods.add(new UsermodTemperature());
#endif
#ifdef USERMOD_SN_PHOTORESISTOR
usermods.add(new Usermod_SN_Photoresistor());
#endif
//usermods.add(new UsermodRenameMe());
#ifdef USERMOD_BUZZER