6d1fd3aaa0
RTC: smarter rules for updating RTC time BH1750 (light meter): allow to use without MQTT; updates for MM specific I2C handling.
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
#pragma once
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#include <Arduino.h> // WLEDMM: make sure that I2C drivers have the "right" Wire Object
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#include <Wire.h>
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#include "src/dependencies/time/DS1307RTC.h"
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#include "wled.h"
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#define RTC_DELTA 2 // only modify RTC time if delta exceeds this number of seconds
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//Connect DS1307 to standard I2C pins (ESP32: GPIO 21 (SDA)/GPIO 22 (SCL))
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class RTCUsermod : public Usermod {
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private:
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unsigned long lastTime = 0;
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bool disabled = false;
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public:
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void setup() {
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PinManagerPinType pins[2] = { { i2c_scl, true }, { i2c_sda, true } };
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if (pins[1].pin < 0 || pins[0].pin < 0) { disabled=true; return; } //WLEDMM bugfix - ensure that "final" GPIO are valid and no "-1" sneaks trough
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// WLEDMM join hardware I2C
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if (!pinManager.joinWire()) { // WLEDMM - this allocates global I2C pins, then starts Wire - if not started previously
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disabled = true;
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return;
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}
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//if (!pinManager.allocateMultiplePins(pins, 2, PinOwner::HW_I2C)) { disabled = true; return; }
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#if defined(ARDUINO_ARCH_ESP32)
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//Wire.begin(pins[1].pin, pins[0].pin); // WLEDMM this might silently fail, which is OK as it just means that I2C bus is already running.
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#else
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//Wire.begin(); // WLEDMM - i2c pins on 8266 are fixed.
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#endif
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RTC.begin();
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time_t rtcTime = RTC.get();
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if (rtcTime) {
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toki.setTime(rtcTime,TOKI_NO_MS_ACCURACY,TOKI_TS_RTC);
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updateLocalTime();
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USER_PRINTLN(F("Localtime updated from RTC."));
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} else {
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if (!RTC.chipPresent()) disabled = true; //don't waste time if H/W error
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}
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}
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void loop() {
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if (strip.isUpdating()) return;
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if (!disabled && toki.isTick()) {
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time_t t = toki.second();
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if (abs(t - RTC.get())> RTC_DELTA) { // WLEDMM only consider time diffs > 2 seconds
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if ( (toki.getTimeSource() == TOKI_TS_NTP)
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||( (toki.getTimeSource() != TOKI_TS_NONE) && (toki.getTimeSource() != TOKI_TS_RTC)
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&& (toki.getTimeSource() != TOKI_TS_BAD) && (toki.getTimeSource() != TOKI_TS_UDP_SEC) && (toki.getTimeSource() != TOKI_TS_UDP)))
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{ // WLEMM update RTC if we have a reliable time source
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RTC.set(t); //set RTC to NTP/UI-provided value - WLEDMM allow up to 3 sec deviation
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USER_PRINTLN(F("RTC updated using localtime."));
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} else {
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// WLEDMM if no reliable time -> update from RTC
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time_t rtcTime = RTC.get();
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if (rtcTime) {
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toki.setTime(rtcTime,TOKI_NO_MS_ACCURACY,TOKI_TS_RTC);
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updateLocalTime();
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USER_PRINTLN(F("Localtime updated from RTC."));
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}
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}
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}
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}
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}
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/*
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* addToConfig() can be used to add custom persistent settings to the cfg.json file in the "um" (usermod) object.
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* It will be called by WLED when settings are actually saved (for example, LED settings are saved)
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* I highly recommend checking out the basics of ArduinoJson serialization and deserialization in order to use custom settings!
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*/
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// void addToConfig(JsonObject& root)
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// {
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// JsonObject top = root.createNestedObject("RTC");
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// JsonArray pins = top.createNestedArray("pin");
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// pins.add(i2c_scl);
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// pins.add(i2c_sda);
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// }
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uint16_t getId()
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{
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return USERMOD_ID_RTC;
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}
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}; |