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open_evse.h
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open_evse.h
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// -*- C++ -*-
/*
* Open EVSE Firmware
*
* This file is part of Open EVSE.
* Open EVSE 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, or (at your option)
* any later version.
* Open EVSE 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 Open EVSE; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define OPEN_EVSE
#include <avr/wdt.h>
#include <avr/pgmspace.h>
#include <avr/eeprom.h>
#include <pins_arduino.h>
#include "./Wire.h"
#include "./Time.h"
#include "avrstuff.h"
#if defined(ARDUINO) && (ARDUINO >= 100)
#include "Arduino.h"
#else
#include "WProgram.h" // shouldn't need this but arduino sometimes messes up and puts inside an #ifdef
#endif // ARDUINO
#define VERSION "D3.9.5"
//-- begin features
// show disabled tests before POST
#define SHOW_DISABLED_TESTS
// current measurement
#define AMMETER
// serial remote api
#define RAPI
// serial port command line
// For the RTC version, only CLI or LCD can be defined at one time.
// There is a directive to take care of that if you forget.
//#define SERIALCLI
// enable watchdog timer
#define WATCHDOG
// charge for a specified amount of time and then stop
#define TIME_LIMIT
// Support for Nick Sayer's OpenEVSE II board, which has alternate hardware for ground check/stuck relay check and a voltmeter for L1/L2.
//#define OPENEVSE_2
#ifdef OPENEVSE_2
// If the AC voltage is > 150,000 mV, then it's L2. Else, L1.
#define L2_VOLTAGE_THRESHOLD (150000)
#define VOLTMETER
// 35 ms is just a bit longer than 1.5 cycles at 50 Hz
#define VOLTMETER_POLL_INTERVAL (35)
// This is just a wild guess
// #define VOLTMETER_SCALE_FACTOR (266) // original guess
#define DEFAULT_VOLT_SCALE_FACTOR (262) // calibrated for Craig K OpenEVSE II build
//#define DEFAULT_VOLT_SCALE_FACTOR (298) // calibrated for lincomatic's OEII
// #define VOLTMETER_OFFSET_FACTOR (40000) // original guess
#define DEFAULT_VOLT_OFFSET (46800) // calibrated for Craig K OpenEVSE II build
//#define DEFAULT_VOLT_OFFSET (12018) // calibrated for lincomatic's OEII
#endif // OPENEVSE_2
// GFI support
#define GFI
// If you loop a wire from the third GFI pin through the CT a few times and then to ground,
// enable this. ADVPWR must also be defined.
#define GFI_SELFTEST
// behavior specified by UL
// 1) if enabled, POST failure will cause a hard fault until power cycled.
// disabled, will retry POST continuously until it passes
// 2) if enabled, any a fault occurs immediately after charge is initiated,
// hard fault until power cycled. Otherwise, do the standard delay/retry sequence
#define UL_COMPLIANT
// if enabled, do GFI self test before closing relay
#define UL_GFI_SELFTEST
#ifdef UL_GFI_SELFTEST
#define GFI_SELFTEST
#endif //UL_GFI_SELFTEST
#define TEMPERATURE_MONITORING // Temperature monitoring support
// not yet #define TEMPERATURE_MONITORING_NY
#ifdef AMMETER
// kWh Recording feature depends upon #AMMETER support
// comment out KWH_RECORDING to have the elapsed time and time of day displayed on the second line of the LCD
#define KWH_RECORDING
#ifdef KWH_RECORDING
// stop charging after a certain kWh reached
#define CHARGE_LIMIT
#endif // KWH_RECORDING
#endif //AMMETER
//Adafruit RGBLCD (MCP23017) - can have RGB or monochrome backlight
#define RGBLCD
//select default LCD backlight mode. can be overridden w/CLI/RAPI
#define BKL_TYPE_MONO 0
#define BKL_TYPE_RGB 1
#define DEFAULT_LCD_BKL_TYPE BKL_TYPE_RGB
//#define DEFAULT_LCD_BKL_TYPE BKL_TYPE_MONO
// Adafruit LCD backpack in I2C mode (MCP23008)
//#define I2CLCD
// Support PCF8574* based I2C backpack using F. Malpartida's library
// https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
//#define I2CLCD_PCF8574
// Advanced Powersupply... Ground check, stuck relay, L1/L2 detection.
#define ADVPWR
// valid only if ADVPWR defined - for rectified MID400 chips which block
// half cycle (for ground check on both legs)
#define SAMPLE_ACPINS
// single button menus (needs LCD enabled)
// connect an SPST-NO button between BTN_PIN and GND or enable ADAFRUIT_BTN to use the
// select button of the Adafruit RGB LCD
// How to use 1-button menu
// Long press activates menu
// When within menus, short press cycles menu items, long press selects and exits current submenu
#define BTN_MENU
// When not in menus, short press instantly stops the EVSE - another short press resumes. Long press activates menus
// also allows menus to be manipulated even when in State B/C
#define BTN_ENABLE_TOGGLE
#ifdef BTN_MENU
// use Adafruit RGB LCD select button
#ifdef RGBLCD
#define ADAFRUIT_BTN
#endif // RGBLCD
#endif // BTN_MENU
// Option for RTC and DelayTime
// REQUIRES HARDWARE RTC: DS1307 or DS3231 connected via I2C
#define RTC // enable RTC & timer functions
#ifdef RTC
// Option for Delay Timer - GoldServe
#define DELAYTIMER
#if defined(DELAYTIMER) && defined(BTN_MENU)
#define DELAYTIMER_MENU
#endif
#endif // RTC
// if defined, this pin goes HIGH when the EVSE is sleeping, and LOW otherwise
//#define SLEEP_STATUS_REG &PINB
//#define SLEEP_STATUS_IDX 4
// for stability testing - shorter timeout/higher retry count
//#define GFI_TESTING
// phase and frequency correct PWM 1/8000 resolution
// when not defined, use fast PWM -> 1/250 resolution
#define PAFC_PWM
//-- end features
#ifndef RGBLCD
#define DEFAULT_LCD_BKL_TYPE BKL_TYPE_MONO
#endif
#if defined(RGBLCD) || defined(I2CLCD)
#define LCD16X2
//If LCD is not defined, undef BTN_MENU - requires LCD
#else
#undef BTN_MENU
#endif // RGBLCD || I2CLCD
#ifndef I2CLCD
#undef I2CLCD_PCF8574
#endif
//If LCD and RTC is defined, un-define CLI so we can save ram space.
#if defined(SERIALCLI) && defined(DELAYTIMER)
#error INVALID CONFIG - CANNOT enable SERIALCLI with DELAYTIMER_MENU together - too big
#endif
#if defined(RAPI) && defined(SERIALCLI)
#error INVALID CONFIG - CANNOT DEFINE SERIALCLI AND RAPI TOGETHER SINCE THEY BOTH USE THE SERIAL PORT
#endif
#if defined(OPENEVSE_2) && !defined(ADVPWR)
#error INVALID CONFIG - OPENEVSE_2 implies/requires ADVPWR
#endif
#if defined(UL_COMPLIANT) && !defined(GFI_SELFTEST)
#error INVALID CONFIG - GFI SELF TEST NEEDED FOR UL COMPLIANCE
#endif
//
// begin functional tests
//
//
// for debugging ONLY - turns off all safety checks
//#define NOCHECKS
// DO NOT USE FT_xxx. FOR FUNCTIONAL TESTING ONLY
//
// Test for GFI fault lockout
// immediately GFI fault when entering STATE C -> should hard fault
// there will be a delay of a few seconds before the fault because we
// need to loop to cause the GFI fault
// right after GFI fault generated, will flash Closing/Relay on LCD
// -> should hard GFCI fault instantly when relay closes
//#define FT_GFI_LOCKOUT
// Test for auto reclose after GFI fault. Attach EVSIM in STATE C
// 10 sec after charging starts will induce fault. 1 minute after fault
// induced, should clear the fault and resume normal operation
//#define FT_GFI_RETRY
//
// test delay between start of sleep mode and opening relay
// connect EV and put into charging state C
// relay should open after pilot goes back to state B or higher
// or after 3 sec, whichever happens first
// LCD will display SLEEP OPEN/THRESH if opened due to EV response
// or SLEEP OPEN/TIMEOUT if due to timeout
//
//#define FT_SLEEP_DELAY
//
// endurance test
// alternate state B 9 sec/state C 1 sec forever
// top line displays cycle count
// bottom line displays ac pin state
//#define FT_ENDURANCE
// just read AC pins and display on line 1
//#define FT_READ_AC_PINS
//
// end functional tests
//
//-- begin configuration
// WARNING: ALL DELAYS *MUST* BE SHORTER THAN THIS TIMER OR WE WILL GET INTO
// AN INFINITE RESET LOOP
#define WATCHDOG_TIMEOUT WDTO_2S
#define LCD_MAX_CHARS_PER_LINE 16
#ifdef SERIALCLI
#define TMP_BUF_SIZE 64
#else
#define TMP_BUF_SIZE (LCD_MAX_CHARS_PER_LINE*2)
#endif // SERIALCLI
// n.b. DEFAULT_SERVICE_LEVEL is ignored if ADVPWR defined, since it's autodetected
#define DEFAULT_SERVICE_LEVEL 2 // 1=L1, 2=L2
// current capacity in amps
#define DEFAULT_CURRENT_CAPACITY_L1 12
#define DEFAULT_CURRENT_CAPACITY_L2 16
// minimum allowable current in amps
#define MIN_CURRENT_CAPACITY_L1 6
#define MIN_CURRENT_CAPACITY_L2 10
// maximum allowable current in amps
#define MAX_CURRENT_CAPACITY_L1 16 // J1772 Max for L1 on a 20A circuit
#define MAX_CURRENT_CAPACITY_L2 80 // J1772 Max for L2
//J1772EVSEController
#define CURRENT_PIN 0 // analog current reading pin ADCx
#define VOLT_PIN 1 // analog pilot voltage reading pin ADCx
#ifdef OPENEVSE_2
#define VOLTMETER_PIN 2 // analog AC Line voltage voltemeter pin ADCx
// This pin must match the last write to CHARGING_PIN, modulo a delay. If
// it is low when CHARGING_PIN is high, that's a missing ground.
// If it's high when CHARGING_PIN is low, that's a stuck relay.
// Auto L1/L2 is done with the voltmeter.
#define ACLINE1_REG &PIND // OpenEVSE II has only one AC test pin.
#define ACLINE1_IDX 3
#define CHARGING_REG &PIND // OpenEVSE II has just one relay pin.
#define CHARGING_IDX 7 // OpenEVSE II has just one relay pin.
#else // !OPENEVSE_2
// TEST PIN 1 for L1/L2, ground and stuck relay
#define ACLINE1_REG &PIND
#define ACLINE1_IDX 3
// TEST PIN 2 for L1/L2, ground and stuck relay
#define ACLINE2_REG &PIND
#define ACLINE2_IDX 4
// digital Relay trigger pin
#define CHARGING_REG &PINB
#define CHARGING_IDX 0
// digital Relay trigger pin for second relay
#define CHARGING2_REG &PIND
#define CHARGING2_IDX 7
//digital Charging pin for AC relay
#define CHARGINGAC_REG &PINB
#define CHARGINGAC_IDX 1
// obsolete LED pin
//#define RED_LED_REG &PIND
//#define RED_LED_IDX 5
// obsolete LED pin
//#define GREEN_LED_REG &PINB
//#define GREEN_LED_IDX 5
#endif // OPENEVSE_2
// N.B. if PAFC_PWM is enabled, then pilot pin can be PB1 or PB2
// if using fast PWM (PAFC_PWM disabled) pilot pin *MUST* be PB2
#define PILOT_REG &PINB
#define PILOT_IDX 2
#define SERIAL_BAUD 115200
// EEPROM offsets for settings
#define EOFS_CURRENT_CAPACITY_L1 0 // 1 byte
#define EOFS_CURRENT_CAPACITY_L2 1 // 1 byte
#define EOFS_FLAGS 2 // 2 bytes
// EEPROM offsets for Delay Timer function - GoldServe
#define EOFS_TIMER_FLAGS 4 // 1 byte
#define EOFS_TIMER_START_HOUR 5 // 1 byte
#define EOFS_TIMER_START_MIN 6 // 1 byte
#define EOFS_TIMER_STOP_HOUR 7 // 1 byte
#define EOFS_TIMER_STOP_MIN 8 // 1 byte
// AMMETER stuff
#define EOFS_CURRENT_SCALE_FACTOR 9 // 2 bytes
#define EOFS_AMMETER_CURR_OFFSET 11 // 2 bytes
#define EOFS_KWH_ACCUMULATED 13 // 4 bytes
// fault counters
#define EOFS_GFI_TRIP_CNT 17 // 1 byte
#define EOFS_NOGND_TRIP_CNT 18 // 1 byte
#define EOFS_STUCK_RELAY_TRIP_CNT 19 // 1 byte
#define EOFS_VOLT_OFFSET 20 // 4 bytes
#define EOFS_VOLT_SCALE_FACTOR 24 // 2 bytes
#define EOFS_THRESH_AMBIENT 26 // 2 bytes
#define EOFS_THRESH_IR 28 // 2 bytes
// must stay within thresh for this time in ms before switching states
#define DELAY_STATE_TRANSITION 250
// must transition to state A from contacts closed in < 100ms according to spec
// but Leaf sometimes bounces from 3->1 so we will debounce it a little anyway
#define DELAY_STATE_TRANSITION_A 25
// for ADVPWR
#define GROUND_CHK_DELAY 1000 // delay after charging started to test, ms
#define STUCK_RELAY_DELAY 1000 // delay after charging opened to test, ms
#define RelaySettlingTime 250 // time for relay to settle in post, ms
// for SAMPLE_ACPINS - max number of ms to sample
#define AC_SAMPLE_MS 20 // 1 cycle @ 60Hz = 16.6667ms @ 50Hz = 20ms
#ifdef GFI
#define GFI_INTERRUPT 0 // interrupt number 0 = PD2, 1 = PD3
// interrupt number 0 = PD2, 1 = PD3
#define GFI_REG &PIND
#define GFI_IDX 2
#ifdef GFI_SELFTEST
// pin is supposed to be wrapped around the GFI CT 5+ times
#define GFITEST_REG &PIND
#define GFITEST_IDX 6
#define GFI_TEST_CYCLES 60
// GFI pulse should be 33% duty cycle
#define GFI_PULSE_ON_US 5556 // 1/3 of roughly 60 Hz.
#define GFI_PULSE_OFF_US 11111 // 2/3 of roughly 60 Hz.
#endif
#ifdef GFI_TESTING
#define GFI_TIMEOUT ((unsigned long)(15*1000))
#define GFI_RETRY_COUNT 255
#else // !GFI_TESTING
#define GFI_TIMEOUT ((unsigned long)(5*60000)) // 15*60*1000 doesn't work. go figure
// number of times to retry tests before giving up. 255 = retry indefinitely
#define GFI_RETRY_COUNT 6
#endif // GFI_TESTING
#endif // GFI
// for RGBLCD
#define RED 0x1
#define YELLOW 0x3
#define GREEN 0x2
#define BLUE 0x4
#define TEAL 0x6
#define VIOLET 0x5
#define WHITE 0x7
#if defined(RGBLCD) || defined(I2CLCD)
// Using LiquidTWI2 for both types of I2C LCD's
// see http://blog.lincomatic.com/?p=956 for installation instructions
#include "./Wire.h"
#ifdef I2CLCD_PCF8574
#include "./LiquidCrystal_I2C.h"
#define LCD_I2C_ADDR 0x27
#else
#ifdef RGBLCD
#define MCP23017 // Adafruit RGB LCD (PANELOLU2 is now supported without additional define)
#else
#define MCP23008 // Adafruit I2C Backpack
#endif
#include "./LiquidTWI2.h"
#define LCD_I2C_ADDR 0x20 // for adafruit shield or backpack
#endif // I2CLCD_PCF8574
#endif // RGBLCD || I2CLCD
// button sensing pin
#define BTN_REG &PINC
#define BTN_IDX 3
#define BTN_PRESS_SHORT 50 // ms
#define BTN_PRESS_LONG 500 // ms
#define BTN_PRESS_VERYLONG 10000
#ifdef RTC
// Default start/stop timers for un-initialized EEPROMs.
// Makes it easy to compile in default time without need to set it up the first time.
#define DEFAULT_START_HOUR 0x00 //Start time: 00:05
#define DEFAULT_START_MIN 0x05
#define DEFAULT_STOP_HOUR 0x06 //End time: 6:55
#define DEFAULT_STOP_MIN 0x37
#endif // RTC
// for J1772.ReadPilot()
// 1x = 114us 20x = 2.3ms 100x = 11.3ms
#define PILOT_LOOP_CNT 100
#ifdef AMMETER
// This multiplier is the number of milliamps per A/d converter unit.
// First, you need to select the burden resistor for the CT. You choose the largest value possible such that
// the maximum peak-to-peak voltage for the current range is 5 volts. To obtain this value, divide the maximum
// outlet current by the Te. That value is the maximum CT current RMS. You must convert that to P-P, so multiply
// by 2*sqrt(2). Divide 5 by that value and select the next lower standard resistor value. For the reference
// design, Te is 1018 and the outlet maximum is 30. 5/((30/1018)*2*sqrt(2)) = 59.995, so a 56 ohm resistor
// is called for. Call this value Rb (burden resistor).
// Next, one must use Te and Rb to determine the volts-per-amp value. Note that the readCurrent()
// method calculates the RMS value before the scaling factor, so RMS need not be taken into account.
// (1 / Te) * Rb = Rb / Te = Volts per Amp. For the reference design, that's 55.009 mV.
// Each count of the A/d converter is 4.882 mV (5/1024). V/A divided by V/unit is unit/A. For the reference
// design, that's 11.26. But we want milliamps per unit, so divide that into 1000 to get 88.7625558. Round near...
//#define DEFAULT_CURRENT_SCALE_FACTOR 106 // for RB = 47 - recommended for 30A max
//#define DEFAULT_CURRENT_SCALE_FACTOR 184 // for RB = 27 - recommended for 50A max
// Craig K, I arrived at 213 by scaling my previous multiplier of 225 down by the ratio of my panel meter reading of 28 with the OpenEVSE uncalibrated reading of 29.6
// then upped the scale factor to 220 after fixing the zero offset by subtracing 900ma
//#define DEFAULT_CURRENT_SCALE_FACTOR 220 // for RB = 22 - measured by Craig on his new OpenEVSE V3
// NOTE: setting DEFAULT_CURRENT_SCALE_FACTOR TO 0 will disable the ammeter
// until it is overridden via RAPI
//#define DEFAULT_CURRENT_SCALE_FACTOR 220 // Craig K, average of three OpenEVSE controller calibrations
#ifdef OPENEVSE_2
#define DEFAULT_CURRENT_SCALE_FACTOR 186 // OpenEVSE II with a 27 Ohm burden resistor, after a 2-point calibration at 12.5A and 50A
#else
#define DEFAULT_CURRENT_SCALE_FACTOR 220 // OpenEVSE v2.5 and v3 with a 22 Ohm burden resistor (note that the schematic may say 28 Ohms by mistake)
#endif
// subtract this from ammeter current reading to correct zero offset
#ifdef OPENEVSE_2
#define DEFAULT_AMMETER_CURRENT_OFFSET 230 // OpenEVSE II with a 27 Ohm burden resistor, after a 2-point calibration at 12.5A and 50A
#else
#define DEFAULT_AMMETER_CURRENT_OFFSET 0 // OpenEVSE v2.5 and v3 with a 22 Ohm burden resistor. Could use a more thorough calibration exercise to nails this down.
#endif
#ifdef KWH_RECORDING
#define VOLTS_FOR_L1 120 // conventional for North America
// #define VOLTS_FOR_L2 230 // conventional for most of the world
#define VOLTS_FOR_L2 240 // conventional for North America
#endif // KWH_RECORDING
// The maximum number of milliseconds to sample an ammeter pin in order to find three zero-crossings.
// one and a half cycles at 50 Hz is 30 ms.
#define CURRENT_SAMPLE_INTERVAL 35
// Once we detect a zero-crossing, we should not look for one for another quarter cycle or so. 1/4 // cycle at 50 Hz is 5 ms.
#define CURRENT_ZERO_DEBOUNCE_INTERVAL 5
#endif // AMMETER
#ifdef TEMPERATURE_MONITORING
#define MCP9808_IS_ON_I2C // Use the MCP9808 connected to I2C
#define TMP007_IS_ON_I2C // Use the TMP007 IR sensor on I2C
#define TEMPERATURE_DISPLAY_ALWAYS 0 // Set this flag to 1 to always show temperatures on the bottom line of the 16X2 LCD
// Set to it 0 to only display when temperatures become elevated
// #define TESTING_TEMPERATURE_OPERATION // Set this flag to play with very low sensor thresholds or to evaluate the code.
// Leave it commented out instead to run with normal temperature thresholds.
// Temperature thresholds below are expressed as 520 meaning 52.0C to save from needing floating point library
// Keep any adjustments that you make at least 2C apart, giving things some hysterisis. (example is 580 is 3C apart from 550)
// The RESTORE_AMPERAGE value must be lower than the THROTTLE_DOWN value
// The THROTTLE_DOWN value must be lower than the SHUTDOWN value
// The SHUTDOWN value must be lower than the PANIC value
#ifndef TESTING_TEMPERATURE_OPERATION
// normal oerational thresholds just below
#define TEMPERATURE_AMBIENT_THROTTLE_DOWN 550 // This is the temperature in the enclosure where we tell the car to draw 1/2 amperage.
#define TEMPERATURE_AMBIENT_RESTORE_AMPERAGE 520 // If the OpenEVSE responds nicely to the lower current drawn and temperatures in the enclosure
// recover to this level we can kick the current back up to the user's original amperage setting.
#define TEMPERATURE_AMBIENT_SHUTDOWN 580 // This is the temperature in the enclosure where we tell the car to draw 1/4 amperage or 6A is minimum.
#define TEMPERATURE_AMBIENT_PANIC 610 // At this temperature gracefully tell the EV to quit drawing any current, and leave the EVSE in
// an over temperature error state. The EVSE can be restart from the button or unplugged.
// If temperatures get to this level it is advised to open the enclosure to look for trouble.
#define TEMPERATURE_INFRARED_THROTTLE_DOWN 650 // This is the temperature seen by the IR sensor where we tell the car to draw 1/2 amperage.
#define TEMPERATURE_INFRARED_RESTORE_AMPERAGE 600 // If the OpenEVSE responds nicely to the lower current drawn and temperatures in the enclosure
// recover to this level we can kick the current back up to the user's original amperage setting.
#define TEMPERATURE_INFRARED_SHUTDOWN 700 // This is the temperature in the enclosure where we tell the car to draw 1/4 amperage or 6A is minimum.
#define TEMPERATURE_INFRARED_PANIC 750 // At this temperature gracefully tell the EV to quit drawing any current, and leave the EVSE in
// an over temperature error state. The EVSE can be restart from the button or unplugged.
// If temperatures get to this level it is advised to open the enclosure to look for trouble.
#else //TESTING_TEMPERATURE_OPERATION
// Below are good values for testing purposes at room temperature with an EV simulator and no actual high current flowing
#define TEMPERATURE_AMBIENT_THROTTLE_DOWN 290 // This is the temperature in the enclosure where we tell the car to draw 1/2 amperage.
#define TEMPERATURE_AMBIENT_RESTORE_AMPERAGE 270 // If the OpenEVSE responds nicely to the lower current drawn and temperatures in the enclosure
// recover to this level we can kick the current back up to the user's original amperage setting.
#define TEMPERATURE_AMBIENT_SHUTDOWN 310 // This is the temperature in the enclosure where we tell the car to draw 1/4 amperage or 6A is minimum.
#define TEMPERATURE_AMBIENT_PANIC 330 // At this temperature gracefully tell the EV to quit drawing any current, and leave the EVSE in
// an over temperature error state. The EVSE can be restart from the button or unplugged.
// If temperatures get to this level it is advised to open the enclosure to look for trouble.
#define TEMPERATURE_INFRARED_THROTTLE_DOWN 330 // This is the temperature seen by the IR sensor where we tell the car to draw 1/2 amperage.
#define TEMPERATURE_INFRARED_RESTORE_AMPERAGE 270 // If the OpenEVSE responds nicely to the lower current drawn and temperatures in the enclosure
// recover to this level we can kick the current back up to the user's original amperage setting.
#define TEMPERATURE_INFRARED_SHUTDOWN 360 // This is the temperature in the enclosure where we tell the car to draw 1/4 amperage or 6A is minimum.
#define TEMPERATURE_INFRARED_PANIC 400 // At this temperature gracefully tell the EV to quit drawing any current, and leave the EVSE in
// an over temperature error state. The EVSE can be restart from the button or unplugged.
// If temperatures get to this level it is advised to open the enclosure to look for trouble.
#endif // TESTING_TEMPERATURE_OPERATION
#endif // TEMPERATURE_MONITORING
// how long to show each disabled test on LCD
#define SHOW_DISABLED_DELAY 1500
//-- end configuration
typedef union union4b {
int8_t i8;
uint8_t u8;
int16_t i16;
uint16_t u16;
int32_t i32;
uint32_t u32;
unsigned u;
int i;
} UNION4B,*PUNION4B;
//-- begin class definitions
#ifdef WATCHDOG
#define WDT_RESET() wdt_reset() // pat the dog
#define WDT_ENABLE() wdt_enable(WATCHDOG_TIMEOUT)
#else
#define WDT_RESET()
#define WDT_ENABLE()
#endif // WATCHDOG
#include "serialcli.h"
// OnboardDisplay.m_bFlags
#define OBDF_MONO_BACKLIGHT 0x01
#define OBDF_AMMETER_DIRTY 0x80
#define OBDF_UPDATE_DISABLED 0x40
// OnboardDisplay::Update()
#define OBD_UPD_NORMAL 0
#define OBD_UPD_FORCE 1 // update even if no state transition
#define OBD_UPD_HARDFAULT 2 // update w/ hard fault
class OnboardDisplay
{
#ifdef RED_LED_REG
DigitalPin pinRedLed;
#endif
#ifdef GREEN_LED_REG
DigitalPin pinGreenLed;
#endif
#if defined(RGBLCD) || defined(I2CLCD)
#ifdef I2CLCD_PCF8574
LiquidCrystal_I2C m_Lcd;
#else
LiquidTWI2 m_Lcd;
#endif // I2CLCD_PCF8574
#endif // defined(RGBLCD) || defined(I2CLCD)
uint8_t m_bFlags;
char m_strBuf[LCD_MAX_CHARS_PER_LINE+1];
unsigned long m_LastUpdateMs;
int8_t updateDisabled() { return m_bFlags & OBDF_UPDATE_DISABLED; }
public:
OnboardDisplay();
void Init();
void SetGreenLed(uint8_t state) {
#ifdef GREEN_LED_REG
pinGreenLed.write(state);
#endif
}
void SetRedLed(uint8_t state) {
#ifdef RED_LED_REG
pinRedLed.write(state);
#endif
}
#ifdef LCD16X2
void LcdBegin(int x,int y) {
#ifdef I2CLCD
#ifndef I2CLCD_PCF8574
m_Lcd.setMCPType(LTI_TYPE_MCP23008);
#endif
m_Lcd.begin(x,y);
m_Lcd.setBacklight(HIGH);
#elif defined(RGBLCD)
m_Lcd.setMCPType(LTI_TYPE_MCP23017);
m_Lcd.begin(x,y,2);
m_Lcd.setBacklight(WHITE);
#endif // I2CLCD
}
void LcdPrint(const char *s) {
m_Lcd.print(s);
}
void LcdPrint_P(const char PROGMEM *s);
void LcdPrint(int y,const char *s);
void LcdPrint_P(int y,const char PROGMEM *s);
void LcdPrint(int x,int y,const char *s);
void LcdPrint_P(int x,int y,const char PROGMEM *s);
void LcdPrint(int i) {
m_Lcd.print(i);
}
void LcdSetCursor(int x,int y) {
m_Lcd.setCursor(x,y);
}
void LcdClearLine(int y) {
m_Lcd.setCursor(0,y);
for (uint8_t i=0;i < LCD_MAX_CHARS_PER_LINE;i++) {
m_Lcd.write(' ');
}
m_Lcd.setCursor(0,y);
}
void LcdClear() {
m_Lcd.clear();
}
void LcdWrite(uint8_t data) {
m_Lcd.write(data);
}
void LcdMsg(const char *l1,const char *l2);
void LcdMsg_P(const char PROGMEM *l1,const char PROGMEM *l2);
void LcdSetBacklightType(uint8_t t,uint8_t update=OBD_UPD_FORCE) { // BKL_TYPE_XXX
#ifdef RGBLCD
if (t == BKL_TYPE_RGB) m_bFlags &= ~OBDF_MONO_BACKLIGHT;
else m_bFlags |= OBDF_MONO_BACKLIGHT;
Update(update);
#endif // RGBLCD
}
uint8_t IsLcdBacklightMono() {
#ifdef RGBLCD
return (m_bFlags & OBDF_MONO_BACKLIGHT) ? 1 : 0;
#else
return 1;
#endif // RGBLCD
}
void LcdSetBacklightColor(uint8_t c) {
#ifdef RGBLCD
if (IsLcdBacklightMono()) {
if (c) c = WHITE;
}
m_Lcd.setBacklight(c);
#endif // RGBLCD
}
#ifdef RGBLCD
uint8_t readButtons() { return m_Lcd.readButtons(); }
#endif // RGBLCD
#endif // LCD16X2
#ifdef AMMETER
void SetAmmeterDirty(uint8_t tf) {
if (tf) m_bFlags |= OBDF_AMMETER_DIRTY;
else m_bFlags &= ~OBDF_AMMETER_DIRTY;
}
int8_t AmmeterIsDirty() { return (m_bFlags & OBDF_AMMETER_DIRTY) ? 1 : 0; }
#endif // AMMETER
void DisableUpdate(int8_t on) {
if (on) m_bFlags |= OBDF_UPDATE_DISABLED;
else m_bFlags &= ~OBDF_UPDATE_DISABLED;
}
void Update(int8_t updmode=OBD_UPD_NORMAL); // OBD_UPD_xxx
};
#ifdef GFI
#include "Gfi.h"
#endif // GFI
#ifdef TEMPERATURE_MONITORING
#include "./Adafruit_MCP9808.h" // adding the ambient temp sensor to I2C
#include "./Adafruit_TMP007.h" // adding the TMP007 IR I2C sensor
#define TEMPMONITOR_UPDATE_INTERVAL 1000ul
// TempMonitor.m_Flags
#define TMF_OVERTEMPERATURE 0x01
#define TMF_OVERTEMPERATURE_SHUTDOWN 0x02
#define TMF_BLINK_ALARM 0x04
class TempMonitor {
uint8_t m_Flags;
unsigned long m_LastUpdate;
public:
#ifdef MCP9808_IS_ON_I2C
Adafruit_MCP9808 m_tempSensor;
#endif //MCP9808_IS_ON_I2C
#ifdef TMP007_IS_ON_I2C
Adafruit_TMP007 m_tmp007;
#endif //TMP007_IS_ON_I2C
#ifdef TEMPERATURE_MONITORING_NY
int16_t m_ambient_thresh;
int16_t m_ir_thresh;
int16_t m_TMP007_thresh;
#endif //TEMPERATURE_MONITORING_NY
// these three temperatures need to be signed integers
int16_t m_MCP9808_temperature; // 230 means 23.0C Using an integer to save on floating point library use
int16_t m_DS3231_temperature; // the DS3231 RTC has a built in temperature sensor
int16_t m_TMP007_temperature;
TempMonitor() {}
void Init();
void Read();
void SetBlinkAlarm(int8_t tf) {
if (tf) m_Flags |= TMF_BLINK_ALARM;
else m_Flags &= ~TMF_BLINK_ALARM;
}
int8_t BlinkAlarm() { return (m_Flags & TMF_BLINK_ALARM) ? 1 : 0; }
void SetOverTemperature(int8_t tf) {
if (tf) m_Flags |= TMF_OVERTEMPERATURE;
else m_Flags &= ~TMF_OVERTEMPERATURE;
}
int8_t OverTemperature() { return (m_Flags & TMF_OVERTEMPERATURE) ? 1 : 0; }
void SetOverTemperatureShutdown(int8_t tf) {
if (tf) m_Flags |= TMF_OVERTEMPERATURE_SHUTDOWN;
else m_Flags &= ~TMF_OVERTEMPERATURE_SHUTDOWN;
}
int8_t OverTemperatureShutdown() { return (m_Flags & TMF_OVERTEMPERATURE_SHUTDOWN) ? 1 : 0; }
#ifdef TEMPERATURE_MONITORING_NY
void LoadThresh();
void SaveThresh();
#endif //TEMPERATURE_MONITORING_NY
};
#endif // TEMPERATURE_MONITORING
#include "J1772Pilot.h"
#include "J1772EvseController.h"
#ifdef BTN_MENU
#define BTN_STATE_OFF 0
#define BTN_STATE_SHORT 1 // short press
#define BTN_STATE_LONG 2 // long press
class Btn {
#ifdef BTN_REG
DigitalPin pinBtn;
#endif
uint8_t buttonState;
unsigned long lastDebounceTime; // the last time the output pin was toggled
unsigned long vlongDebounceTime; // for verylong press
public:
Btn();
void init();
void read();
uint8_t shortPress();
uint8_t longPress();
};
class Menu {
public:
const char PROGMEM *m_Title;
uint8_t m_CurIdx;
void init(const char *firstitem);
Menu();
virtual void Init() = 0;
virtual void Next() = 0;
virtual Menu *Select() = 0;
};
class SettingsMenu : public Menu {
uint8_t m_menuCnt;
#if defined(CHARGE_LIMIT)||defined(TIME_LIMIT)
uint8_t m_skipLimits;
#endif
public:
SettingsMenu();
void Init();
void Next();
Menu *Select();
#if defined(CHARGE_LIMIT) || defined(TIME_LIMIT)
void CheckSkipLimits();
#endif
};
class SetupMenu : public Menu {
uint8_t m_menuCnt;
public:
SetupMenu();
void Init();
void Next();
Menu *Select();
};
class SvcLevelMenu : public Menu {
public:
SvcLevelMenu();
void Init();
void Next();
Menu *Select();
};
class MaxCurrentMenu : public Menu {
uint8_t m_MinCurrent;
uint8_t m_MaxCurrent;
public:
MaxCurrentMenu();
void Init();
void Next();
Menu *Select();
};
class DiodeChkMenu : public Menu {
public:
DiodeChkMenu();
void Init();
void Next();
Menu *Select();
};
#ifdef GFI_SELFTEST
class GfiTestMenu : public Menu {
public:
GfiTestMenu();
void Init();
void Next();
Menu *Select();
};
#endif
#ifdef TEMPERATURE_MONITORING
class TempOnOffMenu : public Menu {
public:
TempOnOffMenu();
void Init();
void Next();
Menu *Select();
};
#endif // TEMPERATURE_MONITORING
class VentReqMenu : public Menu {
public:
VentReqMenu();
void Init();
void Next();
Menu *Select();
};
#ifdef ADVPWR
class GndChkMenu : public Menu {
public:
GndChkMenu();
void Init();
void Next();
Menu *Select();
};
class RlyChkMenu : public Menu {
public:
RlyChkMenu();
void Init();
void Next();
Menu *Select();
};
#endif // ADVPWR
class ResetMenu : public Menu {
public:
ResetMenu();
void Init();
void Next();
Menu *Select();
};
#ifdef RGBLCD
class BklTypeMenu : public Menu {
public:
BklTypeMenu();
void Init();
void Next();
Menu *Select();
};
#endif // RGBLCD
#if defined(DELAYTIMER)
class RTCMenu : public Menu {
public:
RTCMenu();
void Init();
void Next();
Menu *Select();
};
class RTCMenuMonth : public Menu {
public:
RTCMenuMonth();
void Init();
void Next();
Menu *Select();
};
class RTCMenuDay : public Menu {
public:
RTCMenuDay();
void Init();
void Next();
Menu *Select();
};
class RTCMenuYear : public Menu {
public:
RTCMenuYear();
void Init();
void Next();
Menu *Select();
};
class RTCMenuHour : public Menu {
public:
RTCMenuHour();
void Init();
void Next();
Menu *Select();
};
class RTCMenuMinute : public Menu {
public:
RTCMenuMinute();
void Init();
void Next();
Menu *Select();
};
class DelayMenu : public Menu {
public:
DelayMenu();
void Init();
void Next();
Menu *Select();
};
class DelayMenuEnableDisable : public Menu {
public:
DelayMenuEnableDisable();
void Init();
void Next();
Menu *Select();
};
class DelayMenuStartHour : public Menu {
public:
DelayMenuStartHour();
void Init();
void Next();