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#include "config.h"
#include "Counter.h"
#define RPM_INPUT 2
#define START_BUTTON 3
#define COUNTING_LED 4
#define TIMEOUT_LED 5
#define READY_LED 6
#define SIGNAL_PIN 7
enum ErrorCode
{
Ok,
Error
};
enum MessageHeader
{
ReadConfig,
UpdateStartDelay,
UpdateRPMCount,
UpdateSignalsPerRPM
};
Config config;
Counter counter;
void setup ()
{
Serial.begin(9600);
pinMode(RPM_INPUT, INPUT);
pinMode(START_BUTTON, INPUT);
pinMode(COUNTING_LED, OUTPUT);
pinMode(TIMEOUT_LED, OUTPUT);
pinMode(READY_LED, OUTPUT);
pinMode(SIGNAL_PIN, OUTPUT);
config = readConfig();
counter.init(config.startDelay, config.rpmCount, config.signalsPerRPM);
digitalWrite(READY_LED, HIGH);
}
void updateSerial ()
{
unsigned long val = -1;
bool sendACK = false;
byte code;
while (Serial.available() > 0)
{
MessageHeader header = (MessageHeader) Serial.read();
switch (header)
{
case ReadConfig:
code = Ok;
Serial.write(code);
Serial.write((const uint8_t*) &config.startDelay, sizeof(config.startDelay));
Serial.write((const uint8_t*) &config.rpmCount, sizeof(config.rpmCount));
Serial.write((const uint8_t*) &config.signalsPerRPM, sizeof(config.signalsPerRPM));
Serial.flush();
break;
case UpdateStartDelay:
Serial.readBytes((char*)&val, sizeof(val));
config.startDelay = val;
writeConfig(config);
sendACK = true;
break;
case UpdateRPMCount:
Serial.readBytes((char*)&val, sizeof(val));
config.rpmCount = val;
writeConfig(config);
sendACK = true;
break;
case UpdateSignalsPerRPM:
Serial.readBytes((char*)&val, sizeof(val));
config.signalsPerRPM = val;
writeConfig(config);
sendACK = true;
break;
default:
code = Error;
Serial.write(code);
Serial.flush();
break;
}
}
if (sendACK)
{
code = Ok;
Serial.write(code);
Serial.write((const uint8_t*) &val, sizeof(val));
Serial.flush();
}
}
void loop ()
{
Counter::State state = counter.getState();
if (state == Counter::READY)
{
if (digitalRead(START_BUTTON) == HIGH)
{
unsigned long t = millis();
counter.start(t);
digitalWrite(READY_LED, LOW);
digitalWrite(TIMEOUT_LED, HIGH);
}
else updateSerial();
}
else if (state == Counter::WAITING_FOR_TIMEOUT)
{
unsigned long t = millis();
int rpmSignal = digitalRead(RPM_INPUT);
counter.update(t, rpmSignal);
if (counter.getState() == Counter::COUNTING)
{
digitalWrite(TIMEOUT_LED, LOW);
digitalWrite(COUNTING_LED, HIGH);
}
}
else if (state == Counter::COUNTING)
{
unsigned long t = millis();
int rpmSignal = digitalRead(RPM_INPUT);
counter.update(t, rpmSignal);
if (counter.getState() == Counter::SIGNALING)
{
digitalWrite(COUNTING_LED, LOW);
digitalWrite(SIGNAL_PIN, HIGH);
}
}
else if (state == Counter::SIGNALING)
{
unsigned long t = millis();
counter.update(t, LOW);
if (counter.getState() == Counter::READY)
{
digitalWrite(SIGNAL_PIN, LOW);
digitalWrite(READY_LED, HIGH);
}
}
}
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