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WLAN_Thermometer
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Several fixes.

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master
Holger Wirtz 4 years ago
parent 38d794300b
commit a1a82fe9a2
1 changed files with 90 additions and 49 deletions
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  1. 139
      WLAN_Thermometer.ino

139
WLAN_Thermometer.ino
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@ -16,16 +16,19 @@
#define MDNS_NAME "wlanthermometer"
#define AP_SSID_CONFIG_NAME "WLANTHERMOMETER-Config"
#define AP_CONFIG_PASSWORD "wlanthermometer"
#define AP_DATA_RESET_PIN 35
#define AP_DATA_RESET_PIN 25
#define TEMP_SENS_PIN 34
#define LCD_I2C_ADDR 0x3f
#define LCD_COL 20
#define LCD_ROW 4
#define KRATE_TEMP 5000
#define KRATE_TIME 500
#define KRATE_RESET_AP_DATA 5000
#define MEDIAN_SAMPLES 60
#define ONBOARD_LED 2
#define NTP_TIMEOUT 15000
#define WIFI_CONNECT_TIMEOUT 30
#define CFG_PORTAL_TIMEOUT 90
LiquidCrystal_I2C lcd(LCD_I2C_ADDR, LCD_COL, LCD_ROW);
looper sched;
@ -36,10 +39,13 @@ float temp;
bool led_state;
String header;
WiFiServer server(80);
const uint8_t degree_sign[8] = { B00010, B00101, B00010, B00000, B00000, B00000, B00000, B00000 };
uint8_t add_summertime = 0;
bool last_config_check = false;
void setup()
{
pinMode(AP_DATA_RESET_PIN, INPUT_PULLUP);
pinMode(AP_DATA_RESET_PIN, INPUT_PULLDOWN);
pinMode(ONBOARD_LED, OUTPUT);
Serial.begin(115200);
@ -49,60 +55,40 @@ void setup()
lcd.backlight();
lcd.clear();
lcd.noCursor();
lcd.setCursor(0, 0);
lcd.setCursor(2, 0);
lcd.print(F("WLAN THERMOMETER"));
lcd.setCursor(0, 1);
lcd.setCursor(2, 1);
lcd.print(F("(c)parasiTstudio"));
delay(1000);
DEBUG_MSG("Mode Client\n");
WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
WiFiManager wm;
bool bounce[2];
bounce[0] = digitalRead(AP_DATA_RESET_PIN);
delay(50);
bounce[1] = digitalRead(AP_DATA_RESET_PIN);
if (bounce[1] == LOW && bounce[0] == LOW)
{
wm.resetSettings();
DEBUG_MSG("Resetting AP data\n");
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(F("Resetting AP data"));
delay(2000);
}
// Automatically connect using saved credentials,
// if connection fails, it starts an access point with the specified name ( "AutoConnectAP"),
// if empty will auto generate SSID, if password is blank it will be anonymous AP (wm.autoConnect())
// then goes into a blocking loop awaiting configuration and will return success result
lcd.setCursor(0, 2);
lcd.print(F("Connecting WiFi... "));
lcd.setCursor(0, 3);
lcd.print(F("CFG-AP: 192.168.4.1"));
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(F("Mode Config-AP"));
lcd.setCursor(0, 1);
lcd.print(F("192.168.4.1"));
wm.setConnectTimeout(WIFI_CONNECT_TIMEOUT);
wm.setConfigPortalTimeout(CFG_PORTAL_TIMEOUT);
wm.setBreakAfterConfig(true);
if (!wm.autoConnect(AP_SSID_CONFIG_NAME, AP_CONFIG_PASSWORD))
{
DEBUG_MSG("Failed to connect\n");
lcd.setCursor(0, 2);
lcd.print(F("Failed "));
DEBUG_MSG("Failed to connect\n");
delay(1000);
lcd.setCursor(8, 2);
lcd.print(F("- restart"));
delay(1000);
ESP.restart();
}
else {
//if you get here you have connected to the WiFi
else
{
DEBUG_MSG("Connected\n");
if (!MDNS.begin(MDNS_NAME))
{
DEBUG_MSG("Error setting up MDNS responder!\n");
@ -130,15 +116,23 @@ void setup()
Serial.println("Failed to get time from server.");
DateTime.forceUpdate();
}
if (is_wintertime(DateTime.getTime()) == false)
add_summertime = 1;
else
add_summertime = 0;
// create a degree sign
lcd.createChar(0, (uint8_t*)degree_sign);
server.begin();
sched.addJob(show_temperature, KRATE_TEMP);
sched.addJob(show_time, KRATE_TIME);
sched.addJob(start_config_portal, KRATE_RESET_AP_DATA);
temp_min = (analogRead(TEMP_SENS_PIN) / 2048.0) * 330.0;
temp_min = get_temp_sensor_data();
temp_max = temp_min;
temp = (analogRead(TEMP_SENS_PIN) / 2048.0) * 330.0;
temp = temp_min;
lcd.clear();
show_time();
@ -218,23 +212,57 @@ void loop()
}
}
void start_config_portal(void)
{
if (digitalRead(AP_DATA_RESET_PIN) == HIGH && last_config_check == true)
{
DEBUG_MSG("Reset AP data\n");
WiFiManager wm;
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Resetting AP Data");
delay(2000);
wm.resetSettings();
lcd.setCursor(0, 1);
lcd.print("Done.");
delay(1000);
ESP.restart();
}
else if (digitalRead(AP_DATA_RESET_PIN) == HIGH)
{
if (digitalRead(AP_DATA_RESET_PIN) == HIGH)
DEBUG_MSG("Reset AP data pressed\n");
last_config_check = true;
}
else
last_config_check = false;
}
void show_time(void)
{
DateTimeParts p = DateTime.getParts();
char dt[21];
if (is_wintertime(DateTime.getTime()) == false)
if (p.getHours() == 0 && p.getMinutes() == 0 && p.getSeconds() == 0)
DateTime.forceUpdate();
if ((p.getHours() == 2 || p.getHours() == 3) && p.getMinutes() == 0 && p.getSeconds() == 0)
{
sprintf(dt, "%02d.%02d.%4d %02d:%02d:%02d", p.getMonthDay(), p.getMonth() + 1, p.getYear(), p.getHours() + 1, p.getMinutes(), p.getSeconds());
Serial.print(dt);
Serial.println(" Summertime");
if (is_wintertime(DateTime.getTime()) == false)
add_summertime = 1;
else
add_summertime = 0;
}
sprintf(dt, "%02d.%02d.%4d %02d:%02d:%02d", p.getMonthDay(), p.getMonth() + 1, p.getYear(), p.getHours() + add_summertime, p.getMinutes(), p.getSeconds());
Serial.print(dt);
if (add_summertime > 0)
Serial.println(" Summertime");
else
{
sprintf(dt, "%02d.%02d.%4d %02d:%02d:%02d", p.getMonthDay(), p.getMonth() + 1, p.getYear(), p.getHours(), p.getMinutes(), p.getSeconds());
Serial.print(dt);
Serial.println(" Wintertime");
}
lcd.setCursor(0, 0);
lcd.print(dt);
@ -245,9 +273,9 @@ void show_time(void)
void show_temperature(void)
{
float new_temp = (analogRead(TEMP_SENS_PIN) / 2048.0) * 330.0;
float new_temp = get_temp_sensor_data();
Serial.println(temp, 1);
DEBUG_MSG("Temperature: %02.2f\n", new_temp);
if (new_temp > temp)
{
@ -272,14 +300,20 @@ void show_temperature(void)
temp_max = samples.getHighest();
lcd.setCursor(0, 1);
lcd.print("Temperatur: ");
lcd.print("Temperatur: ");
lcd.print(temp);
lcd.write(0);
lcd.print("C");
lcd.setCursor(0, 2);
lcd.print("Minimum: ");
lcd.print("Minimum: ");
lcd.print(temp_min);
lcd.write(0);
lcd.print("C");
lcd.setCursor(0, 3);
lcd.print("Maximum: ");
lcd.print("Maximum: ");
lcd.print(temp_max);
lcd.write(0);
lcd.print("C");
}
bool is_wintertime(time_t t)
@ -318,3 +352,10 @@ bool is_wintertime(time_t t)
else
return (true);
}
float get_temp_sensor_data(void)
{
float t = constrain((analogRead(TEMP_SENS_PIN) / 2048.0) * 330.0, 0.0, 50.0);
return (t);
}

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