1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
#include <EEPROM.h>
#define PIN_OUTPUT_PSENSOR 17
#define PIN_OUTPUT_RLIGHTS 18
#define PIN_OUTPUT_FLIGHTS 7
#define PIN_OUTPUT_SPEAKER 10
#define PIN_INPUT_REVERSE 5
#define PIN_INPUT_HIGH_BEAM 6
#define PIN_INPUT_BTN_PSENSOR 2
#define PIN_INPUT_BTN_RLIGHTS 3
#define PIN_INPUT_BTN_FLIGHTS 4
#define TIMEOUT_AUTO_OFF 15000
#define TIMEOUT_NONE 0
#define BEEP_FREQ 1000
#define DEBOUNCE_DELAY 50L
#define LONG_PRESS_DURATION 1000L
#define PSENSOR_AUTO_ENABLE_ADDRESS 2
#define RLIGHTS_AUTO_ENABLE_ADDRESS 3
#define FLIGHTS_AUTO_ENABLE_ADDRESS 4
enum State {
OFF_AUTO,
ON_AUTO,
ON_MANUAL,
OFF_MANUAL,
};
enum State STATE_PSENSOR = OFF_AUTO;
enum State STATE_RLIGHTS = OFF_AUTO;
enum State STATE_FLIGHTS = OFF_AUTO;
unsigned long PSENSOR_TIMEOUT_TIMER = 0;
unsigned long RLIGHTS_TIMEOUT_TIMER = 0;
unsigned long FLIGHTS_TIMEOUT_TIMER = 0;
void fsm_tick_timer(
unsigned int outputPin,
enum State* state,
unsigned int sense,
unsigned int button,
unsigned long* timer,
unsigned long timeout,
unsigned int autoEnableAddress
) {
unsigned int autoEnable = EEPROM.read(autoEnableAddress);
if ((digitalRead(sense) == HIGH) && autoEnable)
*timer = millis();
unsigned int timer_expired = 0;
if ((millis() - (*timer)) > timeout)
timer_expired = 1;
switch (*state) {
case OFF_AUTO:
digitalWrite(outputPin, LOW);
if ((digitalRead(sense) == HIGH) && autoEnable) {
*state = ON_AUTO;
break;
}
if (button) {
*state = ON_MANUAL;
break;
}
break;
case ON_AUTO:
digitalWrite(outputPin, HIGH);
if (button) {
*state = OFF_MANUAL;
*timer = millis();
break;
}
if ((digitalRead(sense) == HIGH) && autoEnable) {
break;
}
if (timer_expired || (!autoEnable)) {
*state = OFF_AUTO;
break;
}
break;
case ON_MANUAL:
digitalWrite(outputPin, HIGH);
if (button) {
*state = OFF_AUTO;
break;
}
break;
case OFF_MANUAL:
digitalWrite(outputPin, LOW);
if (digitalRead(sense) == LOW) {
// One improvement here is to wait until the timer expires before going to auto
*state = OFF_AUTO;
break;
}
if (button) {
*state = ON_AUTO;
break;
}
break;
}
}
unsigned int debouncelp(
unsigned int pin,
bool* state,
bool* lastState,
unsigned long* lastDebounceTime,
unsigned long* buttonPressTime,
bool* longPressTriggered,
unsigned int autoEnableAddress
) {
int reading = digitalRead(pin);
unsigned int btnPressed = 0;
if (reading != (*lastState)) {
(*lastDebounceTime) = millis();
(*lastState) = reading;
}
if ((millis() - (*lastDebounceTime)) > DEBOUNCE_DELAY) {
if (reading != (*state)) {
(*state) = reading;
if ((*state) == LOW) {
(*buttonPressTime) = millis();
(*longPressTriggered) = false;
} else {
if (!(*longPressTriggered)) {
unsigned long pressDuration = millis() - (*buttonPressTime);
if (pressDuration < LONG_PRESS_DURATION) {
btnPressed = 1;
}
}
}
}
if ((*state) == LOW && !(*longPressTriggered)) {
if ((millis() - (*buttonPressTime)) >= LONG_PRESS_DURATION) {
*longPressTriggered = true;
unsigned int autoEnable = EEPROM.read(autoEnableAddress);
if (autoEnable) {
EEPROM.write(autoEnableAddress, 0);
tone(PIN_OUTPUT_SPEAKER, BEEP_FREQ, 80);
delay(150);
tone(PIN_OUTPUT_SPEAKER, BEEP_FREQ, 80);
} else {
EEPROM.write(autoEnableAddress, 1);
tone(PIN_OUTPUT_SPEAKER, BEEP_FREQ, 300);
}
}
}
}
return btnPressed;
}
void setup() {
pinMode(PIN_INPUT_REVERSE, INPUT);
pinMode(PIN_INPUT_HIGH_BEAM, INPUT);
pinMode(PIN_INPUT_BTN_PSENSOR, INPUT_PULLUP);
pinMode(PIN_INPUT_BTN_RLIGHTS, INPUT_PULLUP);
pinMode(PIN_INPUT_BTN_FLIGHTS, INPUT_PULLUP);
pinMode(PIN_OUTPUT_PSENSOR, OUTPUT);
pinMode(PIN_OUTPUT_RLIGHTS, OUTPUT);
pinMode(PIN_OUTPUT_FLIGHTS, OUTPUT);
//Serial.begin(9600);
}
void loop() {
#define DEBOUNCE_BUTTON(Name, Pin, AutoEnable) \
static bool Name##State = HIGH; \
static bool Name##LastState = HIGH; \
static unsigned long Name##LastDebounceTime = 0; \
static unsigned long Name##ButtonPressTime = 0; \
static bool Name##LongPressTriggered = false; \
unsigned int Name##Pressed = debouncelp(Pin, &Name##State, &Name##LastState, &Name##LastDebounceTime, &Name##ButtonPressTime, &Name##LongPressTriggered, AutoEnable);
#define FSM(LName, UName, Signal, Timeout) \
DEBOUNCE_BUTTON(LName, PIN_INPUT_BTN_##UName, UName##_AUTO_ENABLE_ADDRESS) \
fsm_tick_timer(PIN_OUTPUT_##UName, &STATE_##UName, Signal, LName##Pressed, &UName##_TIMEOUT_TIMER, Timeout, UName##_AUTO_ENABLE_ADDRESS);
FSM(psensor, PSENSOR, PIN_INPUT_REVERSE, TIMEOUT_AUTO_OFF)
FSM(rlights, RLIGHTS, PIN_INPUT_REVERSE, TIMEOUT_AUTO_OFF)
FSM(Flights, FLIGHTS, PIN_INPUT_HIGH_BEAM, TIMEOUT_NONE)
}
|
