{"id":1511,"date":"2021-11-17T10:14:16","date_gmt":"2021-11-17T09:14:16","guid":{"rendered":"https:\/\/www.onetimenexttime.sk\/arduino\/?post_type=product&p=1511"},"modified":"2024-02-22T19:38:16","modified_gmt":"2024-02-22T18:38:16","slug":"mq-4-methane-gas-sensor-natural-coal-co-methane-detector","status":"publish","type":"product","link":"https:\/\/www.onetimenexttime.sk\/arduino\/index.php\/produkt\/mq-4-methane-gas-sensor-natural-coal-co-methane-detector\/","title":{"rendered":"MQ-4 Methane Gas Sensor Natural Coal Co Methane Detector"},"content":{"rendered":"

 <\/p>\n

 <\/p>\n

Informa\u010dn\u00e1 str\u00e1nka o senzore MQ-4<\/h1>\n\n\n\n\n\n\n\n\n
Popis<\/th>\nSenzor MQ-4 je modul detektora met\u00e1nu, ktor\u00fd je schopn\u00fd detekova\u0165 pr\u00edrodn\u00fd plyn a uhlie plyn v ovzdu\u0161\u00ed.<\/td>\n<\/tr>\n
Vlastnosti<\/th>\n\n
    \n
  • Detekcia met\u00e1nu<\/li>\n
  • Integrovate\u013enos\u0165 s r\u00f4znymi platformami<\/li>\n
  • Vysok\u00e1 citlivos\u0165<\/li>\n
  • N\u00edzka spotreba energie<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
\u0160pecifik\u00e1cie<\/th>\n\n
    \n
  • Nap\u00e1jacie nap\u00e4tie: 5V<\/li>\n
  • Pracovn\u00e1 teplota: -10\u00b0C a\u017e 50\u00b0C<\/li>\n
  • Rozsah detekcie: 200ppm a\u017e 10 000ppm<\/li>\n
  • Rozhranie: Analogov\u00e9<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Pr\u00edklady pou\u017eitia<\/th>\nSenzor MQ-4 sa \u010dasto pou\u017e\u00edva na detekciu pr\u00edtomnosti met\u00e1nu v r\u00f4znych prostrediach, ako s\u00fa dom\u00e1cnosti, priemyseln\u00e9 z\u00e1vody a podzemn\u00e9 priestory.<\/td>\n<\/tr>\n
Pr\u00edkladov\u00fd k\u00f3d pre Arduino<\/th>\n\n
        \/\/ Importovanie kni\u017enice pre senzor MQ-4\r\n        #include <MQ4.h>\r\n        \r\n        \/\/ Defin\u00edcia pinu\r\n        int pinA0 = A0; \/\/ Anal\u00f3gov\u00fd pin\r\n        \r\n        \/\/ Inicializ\u00e1cia senzora\r\n        MQ4 mq4(pinA0);\r\n        \r\n        void setup() {\r\n          Serial.begin(9600); \/\/ Inicializ\u00e1cia komunik\u00e1cie s\u00e9riov\u00e9ho portu\r\n        }\r\n        \r\n        void loop() {\r\n          \/\/ \u010c\u00edtanie hodn\u00f4t z senzora\r\n          float ppm = mq4.read();\r\n          \r\n          \/\/ Vyp\u00edsanie hodn\u00f4t na s\u00e9riov\u00fd port\r\n          Serial.print(\"Hodnota met\u00e1nu (PPM): \");\r\n          Serial.println(ppm);\r\n          \r\n          delay(1000); \/\/ \u010cakanie 1 sekundu\r\n        }\r\n<\/pre>\n<\/td>\n<\/tr>\n
Pr\u00edkladov\u00fd k\u00f3d pre ESPHome<\/th>\n\n
        # Example configuration entry\r\n        sensor:\r\n          - platform: adc\r\n            pin: A0\r\n            name: \"Methane Sensor\"\r\n            update_interval: 30s\r\n            filters:\r\n              - lambda: return (pow(10, log10((0.12\/x)*(5-x)\/(5-0.12))\/(-0.35)))\r\n            unit_of_measurement: \"ppm\"\r\n<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n