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LED Menu
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Choose the LED state on Battery and on USB Power separately.
Choose the Brightness in 5 steps.
Choose the Color scheme
1=current smooth scale
2=green until 600ppm, light green until 800ppm, orange until 1000ppm, dark orange until 1500ppm, red until 2000ppm and magenta above.
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@davidkreidler
davidkreidler committed Oct 22, 2023
1 parent 03e3263 commit e7265fb
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Showing 3 changed files with 148 additions and 16 deletions.
134 changes: 118 additions & 16 deletions OpenCO2_Sensor.ino
View file
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,9 @@ RTC_DATA_ATTR bool initDone = false;
RTC_DATA_ATTR bool BatteryMode = false;
RTC_DATA_ATTR bool comingFromDeepSleep = false;
RTC_DATA_ATTR int ledbrightness = 5;
RTC_DATA_ATTR bool LEDalwaysOn = false;
RTC_DATA_ATTR bool LEDonBattery = false;
RTC_DATA_ATTR bool LEDonUSB = true;
RTC_DATA_ATTR bool useSmoothLEDcolor = true;
RTC_DATA_ATTR int HWSubRev = 1; //default only
RTC_DATA_ATTR float maxBatteryVoltage;
RTC_DATA_ATTR bool useWiFi;
Expand Down Expand Up @@ -176,7 +178,7 @@ void initOnce() {
EEPROM.write(0, 0); //reset welcome
EEPROM.write(1, 2); //write HWSubRev 2
EEPROM.commit();
preferences.begin("co2-sensor", true);
preferences.begin("co2-sensor", false);
preferences.putFloat("MBV", 3.95); //default maxBatteryVoltage
preferences.end();

Expand All @@ -197,6 +199,10 @@ void initOnce() {
preferences.begin("co2-sensor", true);
maxBatteryVoltage = preferences.getFloat("MBV", 3.95);
useWiFi = preferences.getBool("WiFi", false);
LEDonBattery = preferences.getBool("LEDonBattery", false);
LEDonUSB = preferences.getBool("LEDonUSB", true);
ledbrightness = preferences.getInt("ledbrightness", 5);
useSmoothLEDcolor = preferences.getBool("useSmoothLEDcolor", true);
preferences.end();

scd4x.stopPeriodicMeasurement(); // stop potentially previously started measurement
Expand All @@ -212,7 +218,9 @@ void initOnce() {
}

void setLED(uint16_t co2) {
if (BatteryMode && !LEDalwaysOn) {
updateBatteryMode();
if ((BatteryMode && !LEDonBattery)
|| (!BatteryMode && !LEDonUSB)) {
digitalWrite(LED_POWER, HIGH); // LED OFF
strip.clear();
strip.show();
Expand All @@ -223,11 +231,27 @@ void setLED(uint16_t co2) {

int red = 0, green = 0, blue = 0;

if (co2 > 2000) {
red = 216; green = 2; blue = 131; // magenta
if (useSmoothLEDcolor) {
if (co2 > 2000) {
red = 216; green = 2; blue = 131; // magenta
} else {
red = pow((co2 - 400), 2) / 10000;
green = - pow((co2 - 400), 2) / 4500 + 255;
}
} else {
red = pow((co2 - 400), 2) / 10000;
green = - pow((co2 - 400), 2) / 4500 + 255;
if (co2 < 600) {
green = 255;
} else if(co2 < 800) {
red = 60; green = 200;
} else if(co2 < 1000) {
red = 140; green = 120;
} else if(co2 < 1500) {
red = 200; green = 60;
} else if(co2 < 2000) {
red = 255;
} else {
red = 216; green = 2; blue = 131; // magenta
}
}
if (red < 0) red = 0;
if (red > 255) red = 255;
Expand Down Expand Up @@ -291,7 +315,7 @@ void goto_deep_sleep(int ms) {
esp_sleep_enable_ext1_wakeup(0x1,ESP_EXT1_WAKEUP_ALL_LOW); // 2^0 = GPIO_NUM_0 = BUTTON

/* Keep LED enabled */
if (LEDalwaysOn) gpio_hold_en(LED_POWER);
if (LEDonBattery) gpio_hold_en(LED_POWER);
else gpio_hold_dis(LED_POWER);

comingFromDeepSleep = true;
Expand Down Expand Up @@ -494,34 +518,57 @@ enum MenuOptions {
EXIT,
NUM_OPTIONS
};
enum LEDMenuOptions {
onBATTERY,
onUSB,
COLOR,
BRIGHTNESS,
EXIT_LED,
NUM_LED_OPTIONS
};

#define ENGLISH
#ifdef ENGLISH
const char* menuItems[NUM_OPTIONS] = {
"LED on/off",
"LED",
"Rainbow",
"Calibrate",
"History",
"Wi-Fi",
"Info",
"Exit"
};
const char* LEDmenuItems[NUM_LED_OPTIONS] = {
"Battery",
"on USB",
"Color",
"Bright",
"Exit"
};
#else
const char* menuItems[NUM_OPTIONS] = {
"LED ein/aus",
"LED",
"Regenbogen",
"Kalibrieren",
"Historie",
"WLAN",
"Info",
"Beenden"
};
const char* LEDmenuItems[NUM_LED_OPTIONS] = {
"Batterie",
"mit USB",
"Farbe",
"Hell",
"Beenden"
};
#endif

void handleButtonPress() {
uint8_t selectedOption = 0;
extern int refreshes;
refreshes = 1; // force full update
comingFromDeepSleep = false; // force display update even if CO2 changed by less than 3%
displayMenu(selectedOption);

uint16_t mspressed;
Expand All @@ -543,9 +590,7 @@ void handleButtonPress() {
if (mspressed > 1000) { // long press
switch (selectedOption) {
case LED:
LEDalwaysOn = !LEDalwaysOn;
setLED(co2);
while(digitalRead(BUTTON) == 0) {} // wait until button is released
LEDMenu();
refreshes = 1;
return;
case RAINBOW:
Expand All @@ -566,9 +611,9 @@ void handleButtonPress() {
refreshes = 1;
return;
case INFO:
displayinfo();
while (digitalRead(BUTTON) != 0) delay(100); // wait for button press
refreshes = 1;
displayinfo();
while (digitalRead(BUTTON) != 0) delay(100); // wait for button press
refreshes = 1;
return;
case EXIT:
while(digitalRead(BUTTON) == 0) {} // wait until button is released
Expand All @@ -585,6 +630,63 @@ void handleButtonPress() {
}
}

void LEDMenu() {
uint8_t selectedOption = 0;
displayLEDMenu(selectedOption);
uint16_t mspressed;
unsigned long menuStartTime = millis();

for (;;) {
if ((millis() - menuStartTime) > 20000) return; // display LED Menu up to 20 sec
mspressed = 0;
if (digitalRead(BUTTON) == 0) {
while(digitalRead(BUTTON) == 0) { // calculate how long BUTTON is pressed
delay(100);
mspressed += 100;
if (mspressed > 1000) break;
}
if (mspressed > 1000) { // long press
switch (selectedOption) {
case onBATTERY:
LEDonBattery = !LEDonBattery;
preferences.begin("co2-sensor", false);
preferences.putBool("LEDonBattery", LEDonBattery);
preferences.end();
break;
case onUSB:
LEDonUSB = !LEDonUSB;
preferences.begin("co2-sensor", false);
preferences.putBool("LEDonUSB", LEDonUSB);
preferences.end();
break;
case COLOR:
useSmoothLEDcolor = !useSmoothLEDcolor;
preferences.begin("co2-sensor", false);
preferences.putBool("useSmoothLEDcolor", useSmoothLEDcolor);
preferences.end();
break;
case BRIGHTNESS:
ledbrightness += 20; // 5 25 45 65 85
ledbrightness %= 100;
preferences.begin("co2-sensor", false);
preferences.putInt("ledbrightness", 5);
preferences.end();
break;
case EXIT_LED:
while(digitalRead(BUTTON) == 0) {} // wait until button is released
return;
}
} else { // goto next Menu point
selectedOption++;
selectedOption %= NUM_LED_OPTIONS;
}
setLED(co2);
displayLEDMenu(selectedOption);
menuStartTime = millis(); // display LED Menu again for 20 sec
}
}
}

void startWiFi() {
wifiManager.setSaveConfigCallback([]() {
#ifdef MQTT
Expand Down
1 change: 1 addition & 0 deletions epd_abstraction.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ void displayRainbow();
void displayHistory(uint16_t measurements[24][120]);
void displayNoHistory();
void displayMenu(uint8_t selectedOption);
void displayLEDMenu(uint8_t selectedOption);
void displayCalibrationWarning();
void displayWiFi(bool useWiFi);
void displayWiFiStrengh();
Expand Down
29 changes: 29 additions & 0 deletions epd_abstraction.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -305,6 +305,35 @@ void displayMenu(uint8_t selectedOption) {
updateDisplay();
}

void displayLEDMenu(uint8_t selectedOption) {
Paint_Clear(WHITE);
Paint_DrawString_EN(75, 0, "LED", &Font24, WHITE, BLACK);
Paint_DrawLine(10, 23, 190, 23, BLACK, DOT_PIXEL_1X1, LINE_STYLE_SOLID);

for (int i=0; i<NUM_LED_OPTIONS; i++) {
Paint_DrawString_EN(5, 25*(i+1), LEDmenuItems[i], &Font24, WHITE, BLACK);
}
#ifdef ENGLISH
Paint_DrawString_EN(149, 25, (LEDonBattery? "ON":"OFF"), &Font24, WHITE, BLACK);
Paint_DrawString_EN(149, 50, (LEDonUSB? "ON":"OFF"), &Font24, WHITE, BLACK);
#else
Paint_DrawString_EN(149, 25, (LEDonBattery? "AN":"AUS"), &Font24, WHITE, BLACK);
Paint_DrawString_EN(149, 50, (LEDonUSB? "AN":"AUS"), &Font24, WHITE, BLACK);
#endif
Paint_DrawString_EN(149, 75, (useSmoothLEDcolor? "1":"2"), &Font24, WHITE, BLACK);
Paint_DrawString_EN(166, 75, "/2", &Font24, WHITE, BLACK);
Paint_DrawNum(149, 100, (int32_t)(ledbrightness/20+1), &Font24, BLACK, WHITE); // 5 25 45 65 85
Paint_DrawString_EN(166, 100, "/5", &Font24, WHITE, BLACK);

/* invert the selectedOption */
for (int x = 0; x < 200; x++) {
for (int y = 25*(selectedOption+1)/8; y < 25*(selectedOption+2)/8; y++) {
BlackImage[y+x*25] = ~BlackImage[y+x*25];
}
}
updateDisplay();
}

void displayCalibrationWarning() {
Paint_Clear(BLACK);

Expand Down

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