mirror of https://github.com/arendst/Tasmota.git
251 lines
10 KiB
C++
251 lines
10 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 // 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 // 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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#define D_CMND_TIMEPROP "timeprop_"
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#define D_CMND_TIMEPROP_SETPOWER "setpower_" // add index no on end (0:8) and data is power 0:1
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#include "Timeprop.h"
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enum TimepropCommands { CMND_TIMEPROP_SETPOWER };
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const char kTimepropCommands[] PROGMEM = D_CMND_TIMEPROP_SETPOWER;
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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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#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 betwen 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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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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/* 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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// AddLog_P(LOG_LEVEL_INFO, PSTR("TPR: Timeprop Init"));
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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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int opInverts[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_OPINVERTS};
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int fallbacks[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_FALLBACK_POWERS};
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int maxIntervals[TIMEPROP_NUM_OUTPUTS] = {TIMEPROP_MAX_UPDATE_INTERVALS};
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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 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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/* struct XDRVMAILBOX { */
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/* uint16_t valid; */
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/* uint16_t index; */
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/* uint16_t data_len; */
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/* int16_t payload; */
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/* char *topic; */
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/* char *data; */
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/* } XdrvMailbox; */
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// To get here post with topic cmnd/timeprop_setpower_n where n is index into timeprops 0:7
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bool TimepropCommand()
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{
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char command [CMDSZ];
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bool serviced = true;
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uint8_t ua_prefix_len = strlen(D_CMND_TIMEPROP); // to detect prefix of command
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/*
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AddLog_P(LOG_LEVEL_INFO, PSTR("Command called: "
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"index: %d data_len: %d payload: %d topic: %s data: %s"),
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XdrvMailbox.index,
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XdrvMailbox.data_len,
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XdrvMailbox.payload,
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(XdrvMailbox.payload >= 0 ? XdrvMailbox.topic : ""),
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(XdrvMailbox.data_len >= 0 ? XdrvMailbox.data : ""));
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*/
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if (0 == strncasecmp_P(XdrvMailbox.topic, PSTR(D_CMND_TIMEPROP), ua_prefix_len)) {
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// command starts with timeprop_
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int command_code = GetCommandCode(command, sizeof(command), XdrvMailbox.topic + ua_prefix_len, kTimepropCommands);
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if (CMND_TIMEPROP_SETPOWER == command_code) {
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/*
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AddLog_P(LOG_LEVEL_INFO, PSTR("Timeprop command timeprop_setpower: "
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"index: %d data_len: %d payload: %d topic: %s data: %s"),
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XdrvMailbox.index,
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XdrvMailbox.data_len,
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XdrvMailbox.payload,
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(XdrvMailbox.payload >= 0 ? XdrvMailbox.topic : ""),
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(XdrvMailbox.data_len >= 0 ? XdrvMailbox.data : ""));
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*/
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if (XdrvMailbox.index >=0 && XdrvMailbox.index < TIMEPROP_NUM_OUTPUTS) {
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timeprops[XdrvMailbox.index].setPower( atof(XdrvMailbox.data), Tprop.current_time_secs );
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}
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snprintf_P(TasmotaGlobal.mqtt_data, sizeof(TasmotaGlobal.mqtt_data), PSTR("{\"" D_CMND_TIMEPROP D_CMND_TIMEPROP_SETPOWER "%d\":\"%s\"}"),
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XdrvMailbox.index, XdrvMailbox.data);
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}
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else {
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serviced = false;
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}
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} else {
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serviced = false;
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}
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return serviced;
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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(byte 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 = TimepropCommand();
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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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}
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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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