mirror of https://github.com/arendst/Tasmota.git
357 lines
14 KiB
C++
357 lines
14 KiB
C++
/*
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xdrv_48_timeprop.ino - Timeprop support for Sonoff-Tasmota
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Copyright (C) 2021 Colin Law and Thomas Herrmann
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_TIMEPROP
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#ifndef FIRMWARE_MINIMAL
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/*********************************************************************************************\
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* Code to drive one or more relays in a time proportioned manner give a
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* required power value.
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*
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* Given required power values in the range 0.0 to 1.0 the relays will be
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* driven on/off in such that the average power suppled will represent
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* the required power.
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* The cycle time is configurable. If, for example, the
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* period is set to 10 minutes and the power input is 0.2 then the output will
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* be on for two minutes in every ten minutes.
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*
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* A value for actuator dead time may be provided. If you have a device that
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* takes a significant time to open/close then set this to the average of the
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* open and close times. The algorithim will then adjust the output timing
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* accordingly to ensure that the output is not switched more rapidly than
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* the actuator can cope with.
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*
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* A facility to invert the output is provided which can be useful when used in
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* refrigeration processes and similar.
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*
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* In the case where only one relay is being driven the power value is set by
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* writing the value to the mqtt topic cmnd/timeprop_setpower_0. If more than
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* one relay is being driven (as might be the case for a heat/cool application
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* where one relay drives the heater and the other the cooler) then the power
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* for the second relay is written to topic cmnd/timeprop_setpower_1 and so on.
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*
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* To cope with the problem of temporary wifi failure etc a
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* TIMEPROP_MAX_UPDATE_INTERVALS value is available. This can be set to the max
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* expected time between power updates and if this time is exceeded then the
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* power will fallback to a given safe value until a new value is provided. Set
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* the interval to 0 to disable this feature.
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*
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* Usage:
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* Place this file in the sonoff folder.
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* Clone the library https://github.com/colinl/process-control.git from Github
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* into a subfolder of lib.
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* In user_config.h or user_config_override.h for a single relay, include
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* code as follows:
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#define USE_TIMEPROP // include the timeprop feature (+1.2k)
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// for single output
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#define TIMEPROP_NUM_OUTPUTS 1 // how many outputs to control (with separate alogorithm for each)
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#define TIMEPROP_CYCLETIMES 60 // cycle time seconds
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#define TIMEPROP_DEADTIMES 0 // actuator action time seconds
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#define TIMEPROP_OPINVERTS false // whether to invert the output
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#define TIMEPROP_FALLBACK_POWERS 0.0 // falls back to this if too long betwen power updates
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#define TIMEPROP_MAX_UPDATE_INTERVALS 120 // max no secs that are allowed between power updates (0 to disable)
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#define TIMEPROP_RELAYS 1 // which relay to control 1:8
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* or for two relays:
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#define USE_TIMEPROP // include the timeprop feature (+1.2k)
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// for single output
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#define TIMEPROP_NUM_OUTPUTS 2 // how many outputs to control (with separate alogorithm for each)
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#define TIMEPROP_CYCLETIMES 60, 10 // cycle time seconds
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#define TIMEPROP_DEADTIMES 0, 0 // actuator action time seconds
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#define TIMEPROP_OPINVERTS false, false // whether to invert the output
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#define TIMEPROP_FALLBACK_POWERS 0.0, 0.0 // falls back to this if too long betwen power updates
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#define TIMEPROP_MAX_UPDATE_INTERVALS 120, 120 // max no secs that are allowed between power updates (0 to disable)
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#define TIMEPROP_RELAYS 1, 2 // which relay to control 1:8
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* Publish values between 0 and 1 to the topic(s) described above
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*
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**/
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#include "Timeprop.h"
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#ifndef TIMEPROP_NUM_OUTPUTS
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#define TIMEPROP_NUM_OUTPUTS 1 // how many outputs to control (with separate alogorithm for each)
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#endif
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#ifndef TIMEPROP_CYCLETIMES
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#define TIMEPROP_CYCLETIMES 60 // cycle time seconds
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#endif
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#ifndef TIMEPROP_DEADTIMES
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#define TIMEPROP_DEADTIMES 0 // actuator action time seconds
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#endif
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#ifndef TIMEPROP_OPINVERTS
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#define TIMEPROP_OPINVERTS false // whether to invert the output
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#endif
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#ifndef TIMEPROP_FALLBACK_POWERS
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#define TIMEPROP_FALLBACK_POWERS 0 // falls back to this if too long between power updates
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#endif
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#ifndef TIMEPROP_MAX_UPDATE_INTERVALS
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#define TIMEPROP_MAX_UPDATE_INTERVALS 120 // max no secs that are allowed between power updates (0 to disable)
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#endif
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#ifndef TIMEPROP_RELAYS
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#define TIMEPROP_RELAYS 1 // which relay to control 1:8
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#endif
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#ifndef TIMEPROP_REPORT_SETTINGS
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#define TIMEPROP_REPORT_SETTINGS false // set to true to include timeprop settings in json output
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#endif
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static Timeprop timeprops[TIMEPROP_NUM_OUTPUTS];
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static int relayNos[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_RELAYS};
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static long currentRelayStates = 0; // current actual relay states. Bit 0 first relay
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struct {
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Timeprop timeprops[TIMEPROP_NUM_OUTPUTS];
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int relay_nos[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_RELAYS};
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long current_relay_states = 0; // current actual relay states. Bit 0 first relay
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long current_time_secs = 0; // a counter that counts seconds since initialisation
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} Tprop;
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#define D_CMND_TIMEPROP_PREFIX "Timeprop"
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#define D_CMND_TIMEPROP_SETPOWER "_SetPower_" // underscores left in for backwards compatibility
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#define D_CMND_TIMEPROP_SETCYCLETIME "SetCycleTime"
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#define D_CMND_TIMEPROP_DEADTIME "SetDeadTime"
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#define D_CMND_TIMEPROP_OPINVERT "SetOutputInvert"
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#define D_CMND_TIMEPROP_FALLBACK_POWER "SetFallbackPower"
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#define D_CMND_TIMEPROP_MAX_UPDATE_INTERVAL "SetMaxUpdateInterval"
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int cycleTimes[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_CYCLETIMES};
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int deadTimes[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_DEADTIMES};
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unsigned char opInverts[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_OPINVERTS};
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float fallbacks[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_FALLBACK_POWERS};
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int maxIntervals[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_MAX_UPDATE_INTERVALS};
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enum TimepropCommands { CMND_TIMEPROP_SETPOWER };
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const char kCommands[] PROGMEM = D_CMND_TIMEPROP_PREFIX "|"
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D_CMND_TIMEPROP_SETPOWER "|"
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D_CMND_TIMEPROP_SETCYCLETIME "|"
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D_CMND_TIMEPROP_DEADTIME "|"
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D_CMND_TIMEPROP_OPINVERT "|"
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D_CMND_TIMEPROP_FALLBACK_POWER "|"
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D_CMND_TIMEPROP_MAX_UPDATE_INTERVAL ;
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void (* const Command[])(void) PROGMEM = {
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&CmndSetPower,
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&CmndSetCycleTime,
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&CmndSetDeadTime,
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&CmndSetOutputInvert,
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&CmndSetFallbackPower,
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&CmndSetMaxUpdateInterval,
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};
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/* call this from elsewhere if required to set the power value for one of the timeprop instances */
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/* index specifies which one, 0 up */
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void TimepropSetPower(int index, float power) {
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if (index >= 0 && index < TIMEPROP_NUM_OUTPUTS) {
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Tprop.timeprops[index].setPower( power, Tprop.current_time_secs);
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}
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}
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void TimepropInit(void) {
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for (int i = 0; i < TIMEPROP_NUM_OUTPUTS; i++) {
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Tprop.timeprops[i].initialise(cycleTimes[i], deadTimes[i], opInverts[i], fallbacks[i],
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maxIntervals[i], Tprop.current_time_secs);
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}
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}
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void CmndSetPower(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS) {
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if(XdrvMailbox.data_len) {
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float newPower=CharToFloat(XdrvMailbox.data);
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timeprops[XdrvMailbox.index].setPower(newPower, Tprop.current_time_secs );
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ResponseCmndFloat(newPower, 2);
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}
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else {
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ResponseCmndError();
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}
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}
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}
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// commands for settings all take the same form
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// prefix commands with 'timeprop'
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// then append the command string eg. 'SetCycleTime'
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// then append the output number (0 for a single output)
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// then append the value to set set, or
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// leave blank to retrieve the current value
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// eg.
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// 'TimepropSetCycleTime0 120' will set the value of cycle time for output 0 to 120
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// 'TimepropSetCycleTime0' will retrieve the value of cycle time for output 0
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void CmndSetCycleTime(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS ) {
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if(XdrvMailbox.data_len) {
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int newCycleTime=TextToInt(XdrvMailbox.data);
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if(newCycleTime>0) {
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cycleTimes[XdrvMailbox.index] = newCycleTime;
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Tprop.timeprops[XdrvMailbox.index].initialise(cycleTimes[XdrvMailbox.index], deadTimes[XdrvMailbox.index], opInverts[XdrvMailbox.index], fallbacks[XdrvMailbox.index], maxIntervals[XdrvMailbox.index], Tprop.current_time_secs);
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ResponseCmndNumber(newCycleTime);
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}
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else {
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ResponseCmndError();
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}
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}
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else {
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ResponseCmndNumber(cycleTimes[XdrvMailbox.index]);
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}
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}
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}
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void CmndSetDeadTime(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS ) {
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if(XdrvMailbox.data_len) {
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int newDeadTime=TextToInt(XdrvMailbox.data);
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if(newDeadTime>0) {
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deadTimes[XdrvMailbox.index] = newDeadTime;
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Tprop.timeprops[XdrvMailbox.index].initialise(cycleTimes[XdrvMailbox.index], deadTimes[XdrvMailbox.index], opInverts[XdrvMailbox.index], fallbacks[XdrvMailbox.index], maxIntervals[XdrvMailbox.index], Tprop.current_time_secs);
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ResponseCmndNumber(newDeadTime);
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}
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else {
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ResponseCmndError();
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}
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}
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else {
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ResponseCmndNumber(deadTimes[XdrvMailbox.index]);
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}
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}
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}
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void CmndSetOutputInvert(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS ) {
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if(XdrvMailbox.data_len) {
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unsigned char newInvert=TextToInt(XdrvMailbox.data);
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opInverts[XdrvMailbox.index] = newInvert;
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Tprop.timeprops[XdrvMailbox.index].initialise(cycleTimes[XdrvMailbox.index], deadTimes[XdrvMailbox.index], opInverts[XdrvMailbox.index], fallbacks[XdrvMailbox.index], maxIntervals[XdrvMailbox.index], Tprop.current_time_secs);
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ResponseCmndNumber(newInvert);
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}
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else {
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ResponseCmndNumber(opInverts[XdrvMailbox.index]);
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}
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}
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}
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void CmndSetFallbackPower(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS ) {
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if(XdrvMailbox.data_len) {
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float newPower=CharToFloat(XdrvMailbox.data);
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if(newPower>=0.0 && newPower<=1.0) {
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fallbacks[XdrvMailbox.index] = newPower;
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Tprop.timeprops[XdrvMailbox.index].initialise(cycleTimes[XdrvMailbox.index], deadTimes[XdrvMailbox.index], opInverts[XdrvMailbox.index], fallbacks[XdrvMailbox.index], maxIntervals[XdrvMailbox.index], Tprop.current_time_secs);
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ResponseCmndFloat(newPower, 2);
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}
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else {
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ResponseCmndError();
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}
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}
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else {
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ResponseCmndFloat(fallbacks[XdrvMailbox.index], 2);
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}
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}
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}
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void CmndSetMaxUpdateInterval(void) {
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS ) {
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if(XdrvMailbox.data_len) {
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int newInterval=TextToInt(XdrvMailbox.data);
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if(newInterval>0) {
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maxIntervals[XdrvMailbox.index] = newInterval;
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Tprop.timeprops[XdrvMailbox.index].initialise(cycleTimes[XdrvMailbox.index], deadTimes[XdrvMailbox.index], opInverts[XdrvMailbox.index], fallbacks[XdrvMailbox.index], maxIntervals[XdrvMailbox.index], Tprop.current_time_secs);
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ResponseCmndNumber(newInterval);
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}
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else {
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ResponseCmndError();
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}
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}
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else {
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ResponseCmndNumber(maxIntervals[XdrvMailbox.index]);
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}
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}
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}
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void TimepropEverySecond(void) {
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Tprop.current_time_secs++; // increment time
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for (int i=0; i<TIMEPROP_NUM_OUTPUTS; i++) {
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int newState = Tprop.timeprops[i].tick(Tprop.current_time_secs);
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if (newState != bitRead(Tprop.current_relay_states, Tprop.relay_nos[i]-1)){
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// remove the third parameter below if using tasmota prior to v6.0.0
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ExecuteCommandPower(Tprop.relay_nos[i], newState,SRC_IGNORE);
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}
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}
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}
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// called by the system each time a relay state is changed
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void TimepropXdrvPower(void) {
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// for a single relay the state is in the lsb of index, I have think that for
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// multiple outputs then succesive bits will hold the state but have not been
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// able to test that
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Tprop.current_relay_states = XdrvMailbox.index;
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}
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void ShowValues(void) {
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#if TIMEPROP_REPORT_SETTINGS
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ResponseAppend_P(PSTR(",\"Timeprop\":{"));
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for (int i=0; i<TIMEPROP_NUM_OUTPUTS; i++) {
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ResponseAppend_P(PSTR("\"Output%d\":{"),i);
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ResponseAppend_P(PSTR("\"CycleTime\":%d,"),cycleTimes[i]);
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ResponseAppend_P(PSTR("\"DeadTime\":%d,"),deadTimes[i]);
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ResponseAppend_P(PSTR("\"OutputInvert\":%d,"),opInverts[i]);
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ResponseAppend_P(PSTR("\"FallbackPower\":%2_f,"),&fallbacks[i]);
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ResponseAppend_P(PSTR("\"MaxUpdateInterval\":%d"),maxIntervals[i]);
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ResponseAppend_P(i<TIMEPROP_NUM_OUTPUTS-1 ? PSTR("},") : PSTR("}"));
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}
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ResponseAppend_P(PSTR("}"));
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#endif // TIMEPROP_REPORT_SETTINGS
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}
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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#define XDRV_48 48
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bool Xdrv48(uint32_t function) {
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bool result = false;
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switch (function) {
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case FUNC_INIT:
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TimepropInit();
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break;
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case FUNC_EVERY_SECOND:
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TimepropEverySecond();
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break;
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case FUNC_COMMAND:
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result = DecodeCommand(kCommands, Command);
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break;
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case FUNC_SET_POWER:
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TimepropXdrvPower();
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break;
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case FUNC_JSON_APPEND:
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ShowValues();
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break;
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case FUNC_ACTIVE:
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result = true;
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break;
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}
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return result;
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}
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#endif // FIRMWARE_MINIMAL
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#endif // USE_TIMEPROP
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