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CHPC_firmware.ino
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/*
Cheap Heat Pump Controller (CHPC) firmware.
Copyright (C) 2018-2019 Gonzho ([email protected])
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
See https://github.com/gonzho000/chpc/ for more details
*/
//-----------------------USER OPTIONS-----------------------
//#define FIRST_USE //Use (uncomment) for the first run to write to EEPROM addresses of Dallas thermometers, later comment it to remove unnecessary procedures and save EEPROM memory (>4kB)
#define BOARD_TYPE_G //Type "G", PCB from github.com/gonzho000/chpc/
//#define BOARD_TYPE_F //Type "F"
//#define BOARD_TYPE_G9 //Type "G9" or "G-MAX", current testing
//#define DISPLAY_096 1 //1st tests, support WILL BE DROPPED OUT SOON! small OLEDs support
#define DISPLAY_1602 2 //if only 1st character appears: patch 1602 library "inline size_t LiquidCrystal_I2C::write(uint8_t value)" "return 1" instead of "return 0"
//#define DISPLAY_NONE -1
#define INPUTS_AS_BUTTONS 1 //pulldown resistors required
//#define RS485_PYTHON 1
#define RS485_HUMAN 2
//#define RS485_NONE 3
#define CWU_SUPPORT //Domestic hot water tank
#define BUFFER_SUPPORT //Heat buffer tank for central heating. Charged based on two temperature sensors Ttarget (top of buffer) and Ts2 (bottom of buffer).
//Charging is done in a cyclic manner, i.e. the heat pump will be turned on when Ttarget<T_setpoint,
//and the heat pump will be turned off if Ts2>T_setpoint
#define EEV_SUPPORT
//#define EEV_ONLY //NO target, no relays. Oly EEV, Tae, Tbe, current sensor and may be additional T sensors
#define HUMAN_AUTOINFO 10000 //10 sec, print stats to console
#define WATCHDOG //only if u know what to do
//-----------------------TEMPERATURES-----------------------
#define T_SETPOINT_MAX 55.0; //defines max temperature that ordinary user can set
#define T_HOTCIRCLE_DELTA_MIN 2.0; //useful for "water heater vith intermediate heat exchanger" scheme, Target == sensor in water, hot side CP will be switched on if "target - hot_out > T_HOTCIRCLE_DELTA_MIN"
#define T_SUMP_MIN 9.0; //HP will not start if T lower
#define T_SUMP_MAX 110.0; //HP will stop if T higher
#define T_SUMP_HEAT_THRESHOLD 16.0; //sump heater will be powered on if T lower
#define T_BEFORE_CONDENSER_MAX 108.0; //discharge MAX, system stops if discharge higher
#define T_AFTER_EVAPORATOR_MIN -10.0; //suction MIN, HP stops if lower, anti-freeze and anti-liquid at suction protection
#define T_COLD_MIN 2.0; //cold loop anti-freeze: stop if inlet or outlet temperature lower //zmiana z -8.0;
#define T_HOTOUT_MAX 55.0; //hot loop: stop if outlet temperature higher than this //50.0
#define T_WORKINGOK_SUMP_MIN 24.0; //compressor MIN temperature, HP stops if it lower after 5 minutes of pumping, need to be not very high to normal start after deep freeze
//-----------------------TUNING OPTIONS -----------------------
#define MAX_WATTS 3000.0 //user for power protection
#define DEFFERED_STOP_HOTCIRCLE 3000000 //50 mins
#define POWERON_PAUSE 90000 //5 mins //300000
#define COMPRESSOR_DELAY 45000 //45 seconds, Cold WP starts first and the compressor after that
#define COLD_WP_DELAY 60000 //1 mins.
#define MINCYCLE_POWEROFF 900000 //15 mins //zmiana z 300000
#define MINCYCLE_POWERON 600000 //10 mins
#define POWERON_HIGHTIME 20000 //10 sec, defines time after start when power consumption can be 2 times greater than normal
//CWU DHW
#define CWU_INTERVAL 7200000 //2 godziny w milisekundach
#define CWU_MAX_HEATING_TIME 3600000 //1 godzina w milisekundach
//EEV
#define EEV_MAXPULSES 500
#define EEV_PULSE_FCLOSE_MILLIS 20 //fast close, set waiting pos., close on danger
#define EEV_PULSE_CLOSE_MILLIS 3000 //precise close //zmiana z 50000
#define EEV_PULSE_WOPEN_MILLIS 20 //waiting pos. set
#define EEV_PULSE_FOPEN_MILLIS 2000 //fast open, fast search //zmiana z 1300
#define EEV_PULSE_OPEN_MILLIS 6000 //precise open //zmiana z 60000
#define EEV_STOP_HOLD 500 //0.1..1sec for Sanhua
#define EEV_CLOSE_ADD_PULSES 8 //read below, close algo
#define EEV_OPEN_AFTER_CLOSE 58 //0 - close to zero position, than close on EEV_CLOSE_ADD_PULSES (close insurance, read EEV manuals for this value)
//N - close to zero position, than close on EEV_CLOSE_ADD_PULSES, than open on EEV_OPEN_AFTER_CLOSE pulses
//i.e. it is "waiting position" while HP not working
#define EEV_MINWORKPOS 120 //position will be not less during normal work, set after compressor start
#define EEV_PRECISE_START 8.6 //T difference, threshold: make slower pulses if (real_diff-target_diff) less than this value. Used for fine auto-tuning. //zmiana z 8.6
#define EEV_EMERG_DIFF 3.5 //zmiana z 2.5 //if dangerous condition: real_diff =< (target_diff - EEV_EMERG_DIFF) occured then EEV will be closed to min. work position //Ex: EEV_EMERG_DIFF = 2.0, target diff 5.0, if real_diff =< (5.0 - 2.0) than EEV will be closed
#define EEV_HYSTERESIS 0.6 //must be less than EEV_PRECISE_START, ex: target difference = 4.0, hysteresis = 0.1, when difference in range 4.0..4.1 no EEV pulses will be done;
#define EEV_CLOSEEVERY 86400000 //86400000: EEV will be closed (calibrated) every 24 hours, done while HP is NOT working
#define EEV_TARGET_TEMP_DIFF 4.0 //target difference between Before Evaporator and After Evaporator, the head of whole algo
//#define EEV_DEBUG //debug, usefull during system fine tuning, "RS485_HUMAN" only
#define MAGIC 0x45 //change if u want to reinit T sensors
//-----------------------USER OPTIONS END -----------------------
//#define INPUTS_AS_INPUTS 2 //
//#define RS485_MACHINE 3 //?? or part of Python?
//-----------------------changelog-----------------------
/*
v1.0:
- Displays support
- define TYPE F/G and rearrange ports
- multi-DS18b20 support on lane
- skip non-important DS18B20 during init
- rewrite Main Cycle to unification: some sensors can be absent, ex: T_hot_out can be absent because i'ts used as target
- 2 on-board buttons support: +/- aim
- DISPLAY: indication: real and aim
- RS485_HUMAN: remote commands +,-,G,0x20/?/Enter
- buttons: < > increase_decrease t
- simpliest thermostat scheme: only T target
- rename all procs
- RS485_PYTHON: print to console inspite of mode diring init proc
- faster wattage overload processing
- write aim value to EE if needed, period: 15 mins (eq. 1041 days)
- deferred stop of hot side circle
- 80 microseconds at 9600
v1.1, 15 Apr 2019:
- HUMAN_AUTOINFO time
- EEV_ONLY mode
- EEV_Support
- EEV auto poweron/poweroff every 10 sec
- EEV_recalibration_time to stop HP and recalibrate EEV from zero level ex: every 24 hours
v1.2, 16 Apr 2019:
- "Type F" support
v1.3, 30 Apr 2019:
- EEV changed "overheating" to "delta T"
- EEV algo v1.1
v1.4, 02 Jun 2019:
- minor fixes
- EEV more asyncy
- T options to header
v1.5, 01 Jul 2019:
- prototyping 9
v1.6, 30 Apr 2021:
- sensors init issue fix
v1.7W 24 Nov 2022: (Waldek)
- added half-steps to the EEV increasing accuracy
- delay added, Cold WP turns on first and compressor turns on later
- same when the compressor is turned off, after [COMPRESSOR_DELAY] shuts down Cold WP
v1.8W 15 sep 2023: (Waldek)
- added heat pump cooling capability (four-way reversing valve needed)
- [RELAY_4WAY_VALVE] relay controls [valve4w_state]
- moved [T_setpoint_cooling] to eeprom
- added possibility to heat domestic hot water (three-way valve needed)
- [RELAY_SUMP_HEATER] relay controls [valve_cwu_position] ATTENTION!!!!! No sump heating in this!!!!! The heat pump must stand in a room with a minimum temperature of 10 degrees Celsius!!!!!
- [T_TARGET_CWU] was moved to eeprom, [CWU_INTERVAL] - every how many hours in milliseconds to start a water heating cycle, [CWU_MAX_HEATING_TIME] - how many hours in milliseconds to heat water in one cycle
- added [CWU_HYSTERESIS] and moved to eeprom
- transferred [T_EEV_setpoint] to eeprom
- overload error handling
- lack of start handling
- added buffer charging procedure
//TODO:
* In the cooling mode “Hot WP” must be turned on non-stop.
* establish the procedure for going from cooling to DHW heating (compressor stop, pause 60 seconds, switch the four-way valve and DHW, pause 60 seconds, start the compressor). The same in the other direction.
- 1604 display support
- 0.0 to -127 fix: only 2 attempts than pass 0.0
- poss. DoS: infinite read to nowhere, fix it, set finite counter (ex: 200)
- Dev and Host ID to header
- add speaker and err code for ""ERR: no Tae or Tbe for EEV!""
- min_user_t/max_user_t to header
- rs485_modbus
- full relays halification
? wclose and fclose to EEV
- liquid ref. protection: start cold circle and sump heater if tsump =< tco/tci+1, add option to header
- periodical start of hot side circle
- valve_4way
- inputs support
- ? emergency jumper support
- ? rewite re-init proc from MAGIC to emergency jumper removal at board start
- ? EEV target to EEPROM
- ? list T and other things on screen with buttons
- ? EEV define maximum working position
- ? few devices at same lane for RS485_HUMAN
*/
//-----------------------changelog END-----------------------
// DS18B20 pins: GND DATA VDD
//Connections:
//DS18B20 Pinout (Left to Right, pins down, flat side toward you)
//- Left = Ground
//- Center = Signal (Pin N of arduino): (with 3.3K to 4.7K resistor to +5 or 3.3 )
//- Right = +5 or +3.3 V
//
//
// high volume scheme: +---- +5V (12V not tested)
// |
// +----+
// 1MOhm piezo
// +----+
// |(C)
// pin -> 1.6 kOhms -> (B) 2n2222 < front here
// |(E)
// +--- GND
//
/*
scheme SCT-013-000:
2 pins used: tip and sleeve, center (ring) not used http://cms.35g.tw/coding/wp-content/uploads/2014/09/SCT-013-000_UNO-1.jpg
pins are interchangeable due to AC
32 Ohms (22+10) between sensor pins (35 == ideal)
Pin1:
- via elect. cap. to GND
- via ~10K..470K resistor to GND
- via ~10K..470K resistor to +5 (same as prev.)
if 10K+10K used: current is 25mA
use 100K+100K for 3 phases
Pin2:
- to analog pin
- via 32..35 Ohms resistor to Pin1
+5 -------------------------+
|
|
# R1 10K+
|
|
|~2.5 at this point
+---------------+--------------------------------------+----+
| | | |
#_ elect. cap. # R2 10K+ (same as R1) SCT-013-000 $ # R3 = 35 Ohms (ideal case), 32 used
| | | |
GND --------+---------------+ +----+--------> to Analog pin
WARNING: calibrate 3 sensors together, from different sellers, due to case of incorrectly worked 1 of 3 sensor
P(watts)=220*220/R(Ohms)
*/
//
//MAX 485 voltage - 5V
//
// use resistor at RS-485 GND
// 1st test: 10k result lot of issues
// 2nd test: 1k, issues
// 3rd test: 100, see discussions
//16-ch Multiplexer EN pin: active LOW, connect to GND
//used pins:
//!!! ACTUALISE
//2: Z
//3: S3
//4: S2
//5: S1
//6: S0
//7: relay 2
//8: relay 3
//9: speaker
//10: relay 4
//11-13: rs485
//A0: relay 1
//A1: power monitor
/*
relay 1: heat pump
relay 2: hot side pump
relay 3: cold side pump
relay 4: (future) heatpump sump heater
t0: room
t1: heatpump sump
t2: cold in
t3: cold out
t4: hot in
t5: hot out
t6: before condenser
t7: condenser-evaporator
t8: after evaporator
t9: outer
tA: warm floor
wattage1
*/
String fw_version = "1.8W";
#ifdef DISPLAY_096
#define DISPLAY DISPLAY_096
#include <Wire.h>
#include "SSD1306Ascii.h"
#include "SSD1306AsciiWire.h"
#define I2C_ADDRESS 0x3C
SSD1306AsciiWire oled;
#endif
#ifdef DISPLAY_1602
#define DISPLAY DISPLAY_1602
#include <Wire.h>
#include "LiquidCrystal_I2C.h"
LiquidCrystal_I2C lcd(0x27, 16, 2); // set the LCD address to 0x27 for a 16 chars and 2 line display
#endif
#ifdef DISPLAY_NONE
#define DISPLAY DISPLAY_NONE
#endif
#ifndef DISPLAY
#define DISPLAY -1
#endif
//
#ifdef INPUTS_AS_BUTTONS
#define INPUTS INPUTS_AS_BUTTONS
#endif
#ifdef INPUTS_AS_INPUTS
#define INPUTS INPUTS_AS_INPUTS
#endif
//
#ifdef RS485_PYTHON
#define RS485 RS485_PYTHON
char ishuman = 0;
#endif
#ifdef RS485_HUMAN
#define RS485 RS485_HUMAN
char ishuman = 1;
#endif
#ifdef RS485_NONE
char ishuman = 0;
#endif
//hardware resources
#define OW_BUS_ALLTSENSORS 12
#define SerialTxControl 13 //RS485 Direction control DE and RE to this pin
#define speakerOut 6
#define em_pin1 A6
#define EMERGENCY_PIN A7
#ifdef BOARD_TYPE_G
String hw_version = "Type G v1.x";
#define RELAY_HEATPUMP 8
#define RELAY_HOTSIDE_CIRCLE 9
#define RELAY_COLDSIDE_CIRCLE 7
#define RELAY_SUMP_HEATER 10
#define RELAY_4WAY_VALVE 11
#ifdef INPUTS_AS_BUTTONS
#define BUT_RIGHT A3
#define BUT_LEFT A2
#endif
#ifdef EEV_SUPPORT
#define EEV_1 2
#define EEV_2 4
#define EEV_3 3
#define EEV_4 5
#endif
#endif
#ifdef BOARD_TYPE_F
String hw_version = "Type F v1.x";
#define RELAY_HEATPUMP 7
#define RELAY_COLDSIDE_CIRCLE 8
#define LATCH_595 10
#define CLK_595 11
#define DATA_595 9
//595.0: relay 3 RELAY_HOTSIDE_CIRCLE, 595.1: relay 4 RELAY_SUMP_HEATER, 595.2: relay 5 RELAY_4WAY_VALVE, 595.3: uln 6, 595.4: uln 7, 595.5: uln 8, 595.6: uln 9, 595.7: uln 10
#ifdef EEV_SUPPORT
#define EEV_1 5
#define EEV_2 3
#define EEV_3 4
#define EEV_4 2
#endif
#ifdef INPUTS_AS_BUTTONS //not sure
#define BUT_RIGHT A3
#define BUT_LEFT A2
#endif
#endif
#ifdef BOARD_TYPE_G9
String hw_version = "Type G9 v1.x";
#define RELAY_4WAY_VALVE 8
#define RELAY_SUMP_HEATER 7
#define LATCH_595 10
#define CLK_595 9
#define DATA_595 11
#define OE_595 A1
/*
595.0: relay 10(not used)
595.1: relay 8
595.2: relay 9
595.3: relay 5 RELAY_HEATPUMP
595.4: relay 4 RELAY_COLDSIDE_CIRCLE
595.5: relay 3 RELAY_HOTSIDE_CIRCLE
595.6: relay 6
595.7: relay 7
*/
#ifdef EEV_SUPPORT
#define EEV_1 2
#define EEV_2 4
#define EEV_3 3
#define EEV_4 5
#endif
#endif
//---------------------------memory debug
#ifdef __arm__
// should use uinstd.h to define sbrk but Due causes a conflict
extern "C" char* sbrk(int incr);
#else // __ARM__
extern char *__brkval;
#endif // __arm__
int freeMemory() {
char top;
#ifdef __arm__
return &top - reinterpret_cast<char*>(sbrk(0));
#elif defined(CORE_TEENSY) || (ARDUINO > 103 && ARDUINO != 151)
return &top - __brkval;
#else // __arm__
return __brkval ? &top - __brkval : &top - __malloc_heap_start;
#endif // __arm__
}
//---------------------------memory debug END
#include <avr/wdt.h>
#include <EEPROM.h>
//#include <FastCRC.h>
/*FastCRC16 CRC16;
union _crc {
unsigned int integer;
char bytes[2];
} crc;
*/
#include <SoftwareSerial.h>
#define SerialRX 0 //RX connected to RO - Receiver Output
#define SerialTX 1 //TX connected to DI - Driver Output Pin
#define RS485Transmit HIGH
#define RS485Receive LOW
const char devID = 0x41;
const char hostID = 0x30;
SoftwareSerial RS485Serial(SerialRX, SerialTX); // RX, TX
#include <OneWire.h>
#include <DallasTemperature.h>
//library's DEVICE_DISCONNECTED_C -127.0
OneWire ow_ALLTSENSORS(OW_BUS_ALLTSENSORS);
DallasTemperature s_allTsensors(&ow_ALLTSENSORS);
typedef struct {
DeviceAddress addr;
bool e; //enabled
double T;
} st_tsens;
DeviceAddress dev_addr; //temp
st_tsens Tae ;
st_tsens Tbe ;
st_tsens Ttarget;
st_tsens Tsump ;
st_tsens Tci ;
st_tsens Tco ;
st_tsens Thi ;
st_tsens Tho ;
st_tsens Tbc ;
st_tsens Tac ;
st_tsens Touter ;
st_tsens Tcwu ;
st_tsens Ts2 ;
#define BIT_Tae 0
#define BIT_Tbe 1
#define BIT_Ttarget 2
#define BIT_Tsump 3
#define BIT_Tci 4
#define BIT_Tco 5
#define BIT_Thi 6
#define BIT_Tho 7
#define BIT_Tbc 8
#define BIT_Tac 9
#define BIT_Touter 10
#define BIT_Tcwu 11
#define BIT_Ts2 12
unsigned int used_sensors = 0 ; //bit array
double T_setpoint = 21.5;
double T_setpoint_lastsaved = T_setpoint;
double T_setpoint_cooling = 7.0;
double T_setpoint_cooling_lastsaved = T_setpoint_cooling;
double T_TARGET_CWU = 40.0;
double T_TARGET_CWU_lastsaved = T_TARGET_CWU;
double CWU_HYSTERESIS = 2.0;
double CWU_HYSTERESIS_lastsaved = CWU_HYSTERESIS;
double T_EEV_setpoint = EEV_TARGET_TEMP_DIFF;
double T_EEV_setpoint_lastsaved = T_EEV_setpoint;
double T_EEV_dt = 0.0; //real, used during run
const double cT_setpoint_max = T_SETPOINT_MAX;
const double cT_hotcircle_delta_min = T_HOTCIRCLE_DELTA_MIN;
const double cT_sump_min = T_SUMP_MIN;
const double cT_sump_max = T_SUMP_MAX;
const double cT_sump_heat_threshold = T_SUMP_HEAT_THRESHOLD;
//const double cT_sump_outerT_threshold = 18.0; //?? seems to be not useful
const double cT_before_condenser_max = T_BEFORE_CONDENSER_MAX;
const double cT_after_evaporator_min = T_AFTER_EVAPORATOR_MIN; // working evaporation presure ~= -10, it is constant due to large evaporator volume // waterhouse v1: -12 is too high
const double cT_cold_min = T_COLD_MIN;
const double cT_hotout_max = T_HOTOUT_MAX;
//const double cT_workingOK_cold_delta_min = 0.5; // 0.7 - 1st try, 2nd try 0.5
//const double cT_workingOK_hot_delta_min = 0.5;
const double cT_workingOK_sump_min = T_WORKINGOK_SUMP_MIN; //need to be not very high to normal start after deep freeze
const double c_wattage_max = MAX_WATTS; //FUNAI: 1000W seems to be normal working wattage INCLUDING 1(one) CR25/4 at 3rd speed
//PH165X1CY : 920 Watts, 4.2 A
const double c_workingOK_wattage_min = c_wattage_max / 2.5; // zmiana z 2.5
bool heatpump_state = 0;
bool hotside_circle_state = 0;
bool coldside_circle_state = 0;
bool sump_heater_state = 0;
bool valve4w_state = 0;
bool cwu_heating_state = 0; // Flaga aktywnego grzania CWU
bool valve_cwu_position = 0; // Flaga pozycji zaworu (false = ogrzewanie domu, true = ogrzewanie CWU)
bool work_mode_state = 0; // Flaga 0 - grzanie, 1 - chłodzenie
bool relay6_state = 0;
bool relay7_state = 0;
bool relay8_state = 0;
bool relay9_state = 0;
const long poweron_pause = POWERON_PAUSE ; //default 5 mins
const long mincycle_poweroff = MINCYCLE_POWEROFF; //default 5 mins
const long mincycle_poweron = MINCYCLE_POWERON ; //default 60 mins
bool _1st_start_sleeped = 0;
//??? TODO: periodical start ?
//const long floor_circle_maxhalted = 6000000; //circle NOT works max 100 minutes
const long deffered_stop_hotcircle = DEFFERED_STOP_HOTCIRCLE;
float percentage_eev;
int EEV_cur_pos = 0;
int EEV_apulses = 0; //for async
bool EEV_adonotcare = 0;
//const unsigned char EEV_steps[4] = {0b1010, 0b0110, 0b0101, 0b1001};
const unsigned char EEV_steps[8] = {0b1000, 0b1010, 0b0010, 0b0110, 0b0100, 0b0101, 0b0001, 0b1001};
char EEV_cur_step = 0;
bool EEV_fast = 0;
//main cycle vars
unsigned long millis_prev = 0;
unsigned long millis_now = 0;
unsigned long millis_cycle = 1000;
unsigned long millis_last_heatpump_on = 0;
unsigned long millis_last_heatpump_off = 0;
unsigned long millis_cwu_heating_start = 0;
unsigned long millis_last_cwu_heating = 0;
unsigned long millis_last_coldside_off = 0;
unsigned long compressor_runtime = 0;
unsigned long cold_wp_runtime = 0;
unsigned long millis_notification = 0;
unsigned long millis_notification_interval = 33000;
unsigned long millis_displ_update = 0;
unsigned long millis_displ_update_interval = 10000;
unsigned long millis_escinput = 0;
unsigned long millis_charinput = 0;
unsigned long millis_lasteesave = 0;
unsigned long millis_last_printstats = 0;
unsigned long millis_eev_last_close = 0;
unsigned long millis_eev_last_on = 0;
unsigned long millis_eev_last_step = 0;
int skipchars = 0;
#define ERR_HZ 2500
char inData[50]; // Allocate some space for the string, do not change that size!
char inChar = -1; // space to store the character read
byte index = 0; // Index into array; where to store the character
//-------------temporary variables
char temp[10];
int i = 0;
int z = 0;
int x = 0;
int y = 0;
double tempdouble = 0.0;
int tempint = 0;
String outString;
//-------------EEPROM
int eeprom_magic_read = 0x00;
int eeprom_addr = 0x00;
//initial values, saved to EEPROM and can be modified later
//CHANGE eeprom_magic after correction!
const int eeprom_magic = MAGIC;
//-------------ERROR states
#define ERR_OK 0
#define ERR_T_SENSOR 1
#define ERR_HOT_PUMP 2
#define ERR_COLD_PUMP 3
#define ERR_HEATPUMP 4
#define ERR_WATTAGE 5
int errorcode = 0;
//--------------------------- for wattage
#define ADC_BITS 10 //10 fo regular arduino
#define ADC_COUNTS (1<<ADC_BITS)
float em_calibration = 62.5;
int em_samplesnum = 2960; // Calculate Irms only 1480 == full 14 periods for 50Hz
//double Irms = 0; //for tests with original procedure
int supply_voltage = 0;
int em_i = 0;
//phase 1
int sampleI_1 = 0;
double filteredI_1 = 0;
double offsetI_1 = ADC_COUNTS >> 1; //Low-pass filter output
double sqI_1, sumI_1 = 0; //sq = squared, sum = Sum, inst = instantaneous
double async_Irms_1 = 0;
double async_wattage = 0;
//--------------------------- for wattage END
//--------------------------- functions
long ReadVcc() {
// Read 1.1V reference against AVcc
// set the reference to Vcc and the measurement to the internal 1.1V reference
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
ADMUX = _BV(MUX5) | _BV(MUX0);
#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
ADMUX = _BV(MUX3) | _BV(MUX2);
#else
ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#endif
delay(2); // Wait for Vref to settle
ADCSRA |= _BV(ADSC); // Start conversion
while (bit_is_set(ADCSRA, ADSC)); // measuring
uint8_t low = ADCL; // must read ADCL first - it then locks ADCH
uint8_t high = ADCH; // unlocks both
long result = (high << 8) | low;
//constant NOT same as in battery controller!
result = 1126400L / result; // Calculate Vcc (in mV); (me: !!) 1125300 (!!) = 1.1*1023*1000
return result; // Vcc in millivolts
}
#ifdef FIRST_USE
char CheckAddrExists(void) {
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tae.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tbe.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Ttarget.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tsump.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tci.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tco.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Thi.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tho.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tbc.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tac.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Touter.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Tcwu.addr[i]) break;
}
if (i == 8) return 1;
for (i = 0; i < 8; i++) {
if (dev_addr[i] != Ts2.addr[i]) break;
}
if (i == 8) return 1;
return 0;
/*
//incorrect way: 0.06 % chance for 13 sensors to false positive, calculated for true random.
for (i = 0; i < 8; i++) {
if ( (dev_addr[i] != Tae.addr[i]) &&
(dev_addr[i] != Tbe.addr[i]) &&
(dev_addr[i] != Ttarget.addr[i]) &&
(dev_addr[i] != Tsump.addr[i]) &&
(dev_addr[i] != Tci.addr[i]) &&
(dev_addr[i] != Tco.addr[i]) &&
(dev_addr[i] != Thi.addr[i]) &&
(dev_addr[i] != Tho.addr[i]) &&
(dev_addr[i] != Tbc.addr[i]) &&
(dev_addr[i] != Tac.addr[i]) &&
(dev_addr[i] != Touter.addr[i]) &&
(dev_addr[i] != Tcwu.addr[i]) &&
(dev_addr[i] != Ts2.addr[i])
)
break;
}
if (i == 8) return 1;
return 0;
*/
}
#endif
void InitS_and_D(void) {
#ifdef DISPLAY_096
Wire.begin();
oled.begin(&Adafruit128x64, I2C_ADDRESS);
oled.setFont(Adafruit5x7);
#endif
#ifdef DISPLAY_1602
lcd.init(); // initialize the lcd
lcd.backlight(); // not really needed
#endif
RS485Serial.begin(9600);
}
void PrintS (String str) {
#ifdef RS485_HUMAN
char *outChar = &str[0];
digitalWrite(SerialTxControl, RS485Transmit);
delay(1);
RS485Serial.print(outChar);
RS485Serial.println();
RS485Serial.flush();
digitalWrite(SerialTxControl, RS485Receive);
#endif
}
void PrintS_and_D (String str, int printSerial = 1) {
char *outChar = &str[0];
//#ifdef RS485_HUMAN
if (ishuman != 0) {
if (printSerial == 1) {
digitalWrite(SerialTxControl, RS485Transmit);
delay(1);
RS485Serial.print(outChar);
RS485Serial.println();
RS485Serial.flush();
digitalWrite(SerialTxControl, RS485Receive);
}
}
//#endif
if (str == "") {
return;
}
#ifdef DISPLAY_096
oled.clear();
oled.println(str);
#endif
#ifdef DISPLAY_1602
lcd.backlight();
lcd.clear();
lcd.print(str);
#endif
}
void Print_D2 () {
#ifdef DISPLAY_1602
lcd.setCursor(0, 1);
lcd.print(outString);
#endif
}
void _PrintHelp(void) {
PrintS( "Oryginal CHPC, https://github.com/gonzho000/chpc/");
PrintS( "Forked CHPC, https://github.com/WaldemarPachol/chpc fw: " + fw_version + " board: " + hw_version);
PrintS(F("Commands: \n (?) help\n (+) increase aim T\n (-) decrease aim T\n"));
#ifdef CWU_SUPPORT
PrintS(F(" [(] increase aim T_CWU\n [)] decrease aim T_CWU\n"));
PrintS(F(" [&] increase hysteresis T_CWU\n [*] decrease hysteresis T_CWU\n"));
#endif
#ifdef EEV_SUPPORT
PrintS(F(" (<) decrease EEV T diff\n (>) increase EEV T diff\n"));
#endif
PrintS(F(" (G) get stats"));
}
void PrintS_and_D_double (double double_to_print) {
dtostrf(double_to_print, 1, 2, temp);
PrintS_and_D(temp);
}
int Inc_T (void) {
if (T_setpoint + 0.5 > cT_setpoint_max) {
PrintS_and_D(F("Max!"));
delay (200);
return 0;
}
T_setpoint += 0.5;
PrintS_and_D_double(T_setpoint);
return 1;
}
int Dec_T (void) {
if (T_setpoint - 0.5 < 1.0) {
PrintS_and_D(F("Min!"));
delay (200);
return 0;
}
T_setpoint -= 0.5;
PrintS_and_D_double(T_setpoint);
return 1;
}
int Inc_E (void) { ///!!!!!! unprotected
T_EEV_setpoint += 0.25;
PrintS_and_D_double(T_EEV_setpoint);
return 1;
}
int Dec_E (void) { ///!!!!!! unprotected
T_EEV_setpoint -= 0.25;
PrintS_and_D_double(T_EEV_setpoint);
return 1;
}
#ifdef CWU_SUPPORT
int Inc_T_cwu (void) {
if (T_TARGET_CWU + 0.5 > 50.0) {
PrintS_and_D(F("Max!"));
delay (200);
return 0;
}
T_TARGET_CWU += 0.5;
PrintS_and_D_double(T_TARGET_CWU);
return 1;
}
int Dec_T_cwu (void) {
if (T_TARGET_CWU - 0.5 < 30.0) {
PrintS_and_D(F("Min!"));
delay (200);
return 0;
}
T_TARGET_CWU -= 0.5;
PrintS_and_D_double(T_TARGET_CWU);
return 1;
}
int Inc_T_hys (void) {
if (CWU_HYSTERESIS + 0.5 > 10.0) {
PrintS_and_D(F("Max!"));
delay (200);
return 0;
}
CWU_HYSTERESIS += 0.5;
PrintS_and_D_double(CWU_HYSTERESIS);
return 1;
}
int Dec_T_hys (void) {
if (CWU_HYSTERESIS - 0.5 < 0.0) {
PrintS_and_D(F("Min!"));
delay (200);
return 0;
}
CWU_HYSTERESIS -= 0.5;
PrintS_and_D_double(CWU_HYSTERESIS);
return 1;
}
#endif
void print_Serial_SaD (double num) { //global string + double
RS485Serial.print(outString);
RS485Serial.println(num);
}
void PrintStats_Serial (void) {
#ifdef RS485_HUMAN
digitalWrite(SerialTxControl, RS485Transmit);
delay(1);
if (Tae.e == 1) {
outString = "Tae: " ;
print_Serial_SaD(Tae.T);
}
if (Tbe.e == 1) {
outString = "Tbe: " ;
print_Serial_SaD(Tbe.T);
}
if (Ttarget.e == 1) {
outString = "Ttarget: ";
print_Serial_SaD(Ttarget.T);
}
if (Tsump.e == 1) {
outString = "Tsump: " ;
print_Serial_SaD(Tsump.T);
}
if (Tci.e == 1) {
outString = "Tci: " ;
print_Serial_SaD(Tci.T);
}
if (Tco.e == 1) {
outString = "Tco: " ;
print_Serial_SaD(Tco.T);
}
if (Thi.e == 1) {
outString = "Thi: " ;
print_Serial_SaD(Thi.T);
}
if (Tho.e == 1) {
outString = "Tho: " ;
print_Serial_SaD(Tho.T);
}
if (Tbc.e == 1) {
outString = "Tbc: " ;
print_Serial_SaD(Tbc.T);
}
if (Tac.e == 1) {
outString = "Tac: " ;
print_Serial_SaD(Tac.T);
}
if (Touter.e == 1) {
outString = "Touter: " ;
print_Serial_SaD(Touter.T);
}
#ifdef CWU_SUPPORT
if (Tcwu.e == 1) {
outString = "Tcwu: " ;
print_Serial_SaD(Tcwu.T);
}
#endif
if (Ts2.e == 1) {
outString = "Ts2: " ;
print_Serial_SaD(Ts2.T);
}
outString = "Err: " + String(errorcode) + "\n\rWatts:" + String(async_wattage) + "\n\rAim: "; print_Serial_SaD(T_setpoint);
#ifdef EEV_SUPPORT
outString = "EEV_pos:" + String (EEV_cur_pos);
RS485Serial.print(outString);
#endif
RS485Serial.println();
RS485Serial.flush();
digitalWrite(SerialTxControl, RS485Receive);
#endif