247 lines
7.5 KiB
C++
247 lines
7.5 KiB
C++
#include "wled.h"
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#include <Arduino.h>
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#include <U8x8lib.h> // from https://github.com/olikraus/u8g2/
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#include <OneWire.h> // Dallas temperature sensor
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//Dallas sensor quick reading. Credit to - Author: Peter Scargill, August 17th, 2013
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int16_t Dallas(int x, byte start)
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{
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OneWire DallasSensor(x);
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byte i;
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byte data[2];
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int16_t result;
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do
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{
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DallasSensor.reset();
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DallasSensor.write(0xCC);
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DallasSensor.write(0xBE);
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for ( i = 0; i < 2; i++) data[i] = DallasSensor.read();
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result=(data[1]<<8)|data[0];
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result>>=4; if (data[1]&128) result|=61440;
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if (data[0]&8) ++result;
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DallasSensor.reset();
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DallasSensor.write(0xCC);
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DallasSensor.write(0x44,1);
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if (start) delay(1000);
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} while (start--);
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return result;
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}
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#ifdef ARDUINO_ARCH_ESP32
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uint8_t SCL_PIN = 22;
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uint8_t SDA_PIN = 21;
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uint8_t DALLAS_PIN =23;
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#else
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uint8_t SCL_PIN = 5;
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uint8_t SDA_PIN = 4;
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uint8_t DALLAS_PIN =13;
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// uint8_t RST_PIN = 16; // Uncoment for Heltec WiFi-Kit-8
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#endif
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//The SCL and SDA pins are defined here.
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//ESP8266 Wemos D1 mini board use SCL=5 SDA=4 while ESP32 Wemos32 mini board use SCL=22 SDA=21
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#define U8X8_PIN_SCL SCL_PIN
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#define U8X8_PIN_SDA SDA_PIN
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//#define U8X8_PIN_RESET RST_PIN // Uncoment for Heltec WiFi-Kit-8
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// Dallas sensor reading timer
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long temptimer = millis();
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long lastMeasure = 0;
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#define Celsius // Show temperature mesaurement in Celcius otherwise is in Fahrenheit
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// If display does not work or looks corrupted check the
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// constructor reference:
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// https://github.com/olikraus/u8g2/wiki/u8x8setupcpp
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// or check the gallery:
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// https://github.com/olikraus/u8g2/wiki/gallery
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// --> First choise of cheap I2C OLED 128X32 0.91"
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U8X8_SSD1306_128X32_UNIVISION_HW_I2C u8x8(U8X8_PIN_NONE, U8X8_PIN_SCL, U8X8_PIN_SDA); // Pins are Reset, SCL, SDA
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// --> Second choise of cheap I2C OLED 128X64 0.96" or 1.3"
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//U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(U8X8_PIN_NONE, U8X8_PIN_SCL, U8X8_PIN_SDA); // Pins are Reset, SCL, SDA
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// --> Third choise of Heltec WiFi-Kit-8 OLED 128X32 0.91"
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//U8X8_SSD1306_128X32_UNIVISION_HW_I2C u8x8(U8X8_PIN_RESET, U8X8_PIN_SCL, U8X8_PIN_SDA); // Constructor for Heltec WiFi-Kit-8
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// gets called once at boot. Do all initialization that doesn't depend on network here
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void userSetup() {
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//Serial.begin(115200);
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Dallas (DALLAS_PIN,1);
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u8x8.begin();
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u8x8.setPowerSave(0);
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u8x8.setFlipMode(1);
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u8x8.setContrast(10); //Contrast setup will help to preserve OLED lifetime. In case OLED need to be brighter increase number up to 255
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u8x8.setFont(u8x8_font_chroma48medium8_r);
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u8x8.drawString(0, 0, "Loading...");
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}
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// gets called every time WiFi is (re-)connected. Initialize own network
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// interfaces here
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void userConnected() {}
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// needRedraw marks if redraw is required to prevent often redrawing.
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bool needRedraw = true;
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// Next variables hold the previous known values to determine if redraw is
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// required.
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String knownSsid = "";
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IPAddress knownIp;
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uint8_t knownBrightness = 0;
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uint8_t knownMode = 0;
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uint8_t knownPalette = 0;
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long lastUpdate = 0;
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long lastRedraw = 0;
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bool displayTurnedOff = false;
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// How often we are redrawing screen
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#define USER_LOOP_REFRESH_RATE_MS 5000
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void userLoop() {
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//----> Dallas temperature sensor MQTT publishing
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temptimer = millis();
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// Timer to publishe new temperature every 60 seconds
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if (temptimer - lastMeasure > 60000)
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{
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lastMeasure = temptimer;
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//Check if MQTT Connected, otherwise it will crash the 8266
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if (mqtt != nullptr)
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{
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// Serial.println(Dallas(DALLAS_PIN,0));
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//Gets prefered temperature scale based on selection in definitions section
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#ifdef Celsius
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int16_t board_temperature = Dallas(DALLAS_PIN,0);
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#else
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int16_t board_temperature = (Dallas(DALLAS_PIN,0)* 1.8 + 32);
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#endif
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//Create character string populated with user defined device topic from the UI, and the read temperature. Then publish to MQTT server.
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String t = String(mqttDeviceTopic);
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t += "/temperature";
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mqtt->publish(t.c_str(), 0, true, String(board_temperature).c_str());
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}
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}
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// Check if we time interval for redrawing passes.
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if (millis() - lastUpdate < USER_LOOP_REFRESH_RATE_MS) {
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return;
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}
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lastUpdate = millis();
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// Turn off display after 3 minutes with no change.
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if(!displayTurnedOff && millis() - lastRedraw > 3*60*1000) {
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u8x8.setPowerSave(1);
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displayTurnedOff = true;
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}
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// Check if values which are shown on display changed from the last time.
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if (((apActive) ? String(apSSID) : WiFi.SSID()) != knownSsid) {
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needRedraw = true;
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} else if (knownIp != (apActive ? IPAddress(4, 3, 2, 1) : WiFi.localIP())) {
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needRedraw = true;
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} else if (knownBrightness != bri) {
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needRedraw = true;
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} else if (knownMode != strip.getMainSegment().mode) {
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needRedraw = true;
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} else if (knownPalette != strip.getMainSegment().palette) {
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needRedraw = true;
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}
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if (!needRedraw) {
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return;
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}
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needRedraw = false;
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if (displayTurnedOff)
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{
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u8x8.setPowerSave(0);
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displayTurnedOff = false;
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}
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lastRedraw = millis();
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// Update last known values.
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#ifdef ARDUINO_ARCH_ESP32
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knownSsid = WiFi.SSID();
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#else
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knownSsid = apActive ? WiFi.softAPSSID() : WiFi.SSID();
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#endif
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knownIp = apActive ? IPAddress(4, 3, 2, 1) : WiFi.localIP();
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knownBrightness = bri;
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knownMode = strip.getMainSegment().mode;
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knownPalette = strip.getMainSegment().palette;
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u8x8.clear();
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u8x8.setFont(u8x8_font_chroma48medium8_r);
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// First row with Wifi name
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u8x8.setCursor(1, 0);
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u8x8.print(knownSsid.substring(0, u8x8.getCols() > 1 ? u8x8.getCols() - 2 : 0));
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// Print `~` char to indicate that SSID is longer, than owr dicplay
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if (knownSsid.length() > u8x8.getCols())
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u8x8.print("~");
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// Second row with IP or Psssword
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u8x8.setCursor(1, 1);
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// Print password in AP mode and if led is OFF.
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if (apActive && bri == 0)
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u8x8.print(apPass);
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else
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u8x8.print(knownIp);
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// Third row with mode name
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u8x8.setCursor(2, 2);
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uint8_t qComma = 0;
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bool insideQuotes = false;
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uint8_t printedChars = 0;
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char singleJsonSymbol;
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// Find the mode name in JSON
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for (size_t i = 0; i < strlen_P(JSON_mode_names); i++) {
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singleJsonSymbol = pgm_read_byte_near(JSON_mode_names + i);
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switch (singleJsonSymbol) {
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case '"':
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insideQuotes = !insideQuotes;
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break;
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case '[':
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case ']':
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break;
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case ',':
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qComma++;
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default:
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if (!insideQuotes || (qComma != knownMode))
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break;
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u8x8.print(singleJsonSymbol);
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printedChars++;
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}
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if ((qComma > knownMode) || (printedChars > u8x8.getCols() - 2))
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break;
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}
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// Fourth row with palette name
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u8x8.setCursor(2, 3);
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qComma = 0;
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insideQuotes = false;
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printedChars = 0;
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// Looking for palette name in JSON.
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for (size_t i = 0; i < strlen_P(JSON_palette_names); i++) {
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singleJsonSymbol = pgm_read_byte_near(JSON_palette_names + i);
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switch (singleJsonSymbol) {
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case '"':
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insideQuotes = !insideQuotes;
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break;
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case '[':
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case ']':
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break;
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case ',':
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qComma++;
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default:
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if (!insideQuotes || (qComma != knownPalette))
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break;
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u8x8.print(singleJsonSymbol);
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printedChars++;
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}
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if ((qComma > knownMode) || (printedChars > u8x8.getCols() - 2))
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break;
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}
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u8x8.setFont(u8x8_font_open_iconic_embedded_1x1);
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u8x8.drawGlyph(0, 0, 80); // wifi icon
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u8x8.drawGlyph(0, 1, 68); // home icon
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u8x8.setFont(u8x8_font_open_iconic_weather_2x2);
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u8x8.drawGlyph(0, 2, 66 + (bri > 0 ? 3 : 0)); // sun/moon icon
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}
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