{"id":7522,"date":"2023-03-01T11:21:21","date_gmt":"2023-03-01T10:21:21","guid":{"rendered":"https:\/\/www.onetimenexttime.sk\/arduino\/?post_type=product&p=7522"},"modified":"2023-03-01T11:26:37","modified_gmt":"2023-03-01T10:26:37","slug":"433mhz-hc-12-si4463-wireless-serial-port-module-1000m","status":"publish","type":"product","link":"https:\/\/www.onetimenexttime.sk\/arduino\/index.php\/produkt\/433mhz-hc-12-si4463-wireless-serial-port-module-1000m\/","title":{"rendered":"433Mhz HC-12 SI4463 Wireless Serial Port Module 1000m"},"content":{"rendered":"

Popis<\/h2>\n

Komunika\u010dn\u00fd modul funguj\u00faci na frekvenci\u00ed 433.4 MHz a\u017e 473 MHz (v z\u00e1vislosti od kan\u00e1lu) dok\u00e1\u017ee posiela\u0165 d\u00e1ta na vzdialenos\u0165 a\u017e na jeden kilometer. Modul m\u00e1 v\u00fdkon pri z\u00e1\u0165a\u017ei pribli\u017ene 100 mW, z\u00e1le\u017e\u00ed ak\u00fa komunik\u00e1\u010dn\u00fa r\u00fdchlos\u0165 pou\u017e\u00edvate, t\u00e1 sa d\u00e1 nastavi\u0165 od 5000 bps \u2013 236 000 bps. Plat\u00ed, \u017ee \u010d\u00edm vy\u0161\u0161ia r\u00fdchlos\u0165, t\u00fdm krat\u0161ia komunika\u010dn\u00e1 vzdialenos\u0165 (200 m \u2013 1.8 km).<\/p>\n

\u0160pecifik\u00e1cie:<\/strong>
\nPracovn\u00e9 nap\u00e4tie: 3.2 V \u2013 5.5 V
\nFrekvencia: 433.3 \u2013 473.0 MHz
\n1Po\u010det kan\u00e1lov: 100
\nVysielac\u00ed v\u00fdkon: 100 mW (m\u00f4\u017ee sa nastavi\u0165)
\nIdle pr\u00fad: 16 mA<\/p>\n

\n

HC-12 je 100mW viackan\u00e1lov\u00fd bezdr\u00f4tov\u00fd transceiver, ktor\u00fd m\u00f4\u017eete pou\u017ei\u0165 vo svojich projektoch na prenos a pr\u00edjem s\u00e9riov\u00fdch inform\u00e1ci\u00ed.<\/span><\/h2>\n<\/div>\n
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Z\u00edskajte inform\u00e1cie o module vysiela\u010da a prij\u00edma\u010da HC-12 a o tom, ako ho pou\u017e\u00edva\u0165 na prenos a pr\u00edjem digit\u00e1lnych d\u00e1t.<\/span><\/p>\n

HC-12 je poloduplexn\u00fd bezdr\u00f4tov\u00fd s\u00e9riov\u00fd komunika\u010dn\u00fd modul so 100 kan\u00e1lmi v rozsahu 433,4-473,0 MHz, ktor\u00fd je schopn\u00fd pren\u00e1\u0161a\u0165 a\u017e 1 km.\u00a0Tento projekt sa za\u010dne pou\u017eit\u00edm HC-12 na vytvorenie bezdr\u00f4tov\u00e9ho spojenia medzi dvoma po\u010d\u00edta\u010dmi a skon\u010d\u00ed druh\u00fdm \u010dl\u00e1nkom, ktor\u00fd vytvor\u00ed jednoduch\u00fd bezdr\u00f4tov\u00fd GPS sledova\u010d.<\/span><\/p>\n<\/div>\n

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Doska plo\u0161n\u00fdch spojov HC-12 je postaven\u00e1 okolo mikrokontrol\u00e9ra STM8S003F3 a transceivera Si4463.<\/span><\/p>\n

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Transceiver Si4463<\/span><\/h4>\n

Si4463 zabezpe\u010duje bezdr\u00f4tov\u00fa komunik\u00e1ciu v tomto okruhu.\u00a0M\u00e1 maxim\u00e1lny vysielac\u00ed v\u00fdkon 20 dBm (100 mW) a citlivos\u0165 pr\u00edjmu -129 dBm.\u00a0V \u010dipe s\u00fa zabudovan\u00e9 dve 64-bajtov\u00e9 Rx a Tx FIFO pam\u00e4te spolu s ve\u013ek\u00fdm mno\u017estvom pokro\u010dil\u00fdch funkci\u00ed, ktor\u00e9 nie s\u00fa implementovan\u00e9 v dizajne HC-12.\u00a0Viac inform\u00e1ci\u00ed o viacp\u00e1smovej prev\u00e1dzke, preskakovan\u00ed frekvenci\u00ed at\u010f. n\u00e1jdete v \u00fadajovom liste.<\/span><\/p>\n

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Mikrokontrol\u00e9r STM8S003FS<\/span><\/h4>\n

Ide o 8-bitov\u00fd mikrokontrol\u00e9r s 8 kB flash pam\u00e4te, 128 bajtov EEPROM a 10-bitov\u00fdm ADC.\u00a0Podporuje UART, SPI a I\u00b2C a m\u00e1 viacero I\/O pinov.\u00a0Pon\u00faka mnoho rovnak\u00fdch mo\u017enost\u00ed ako jeho n\u00e1protivky ATMega a XMC.\u00a0Je naprogramovan\u00fd tak, aby ovl\u00e1dal Si4463, ako aj zvl\u00e1dal komunik\u00e1ciu UART medzi HC-12 a \u010d\u00edmko\u013evek, ku ktor\u00e9mu je pripojen\u00fd na druhom konci.<\/span><\/p>\n

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Modul vysiela\u010da a prij\u00edma\u010da HC-12<\/span><\/h4>\n

V kombin\u00e1cii s \u010fal\u0161\u00edmi komponentmi vytv\u00e1raj\u00fa Si4463 a STM8S003 transceiver HC-12, ktor\u00fd poskytuje 4-kol\u00edkov\u00e9 rozhranie UART na \u00farovni TTL (Vcc, Gnd, Tx, Rx) s 5. kol\u00edkom, ktor\u00fd sa pou\u017e\u00edva na vstup do \u201epr\u00edkazov\u00e9ho\u201c re\u017eimu. pre zmenu konfigur\u00e1cie modulu.\u00a0HC-12 m\u00e1 100 podporovan\u00fdch kan\u00e1lov s odstupom 400 kHz, osem \u00farovn\u00ed prenosu, osem podporovan\u00fdch prenosov\u00fdch r\u00fdchlost\u00ed a tri r\u00f4zne pracovn\u00e9 re\u017eimy.<\/span><\/p>\n

Piaty kol\u00edk na HC-12 je ozna\u010den\u00fd ako \u201eSet\u201c a ke\u010f je nastaven\u00fd na logick\u00fa n\u00edzku hodnotu, umo\u017e\u0148uje v\u00fdber r\u00f4znych nastaven\u00ed na HC-12 pomocou pr\u00edkazov AT odoslan\u00fdch na kol\u00edk \u201eRXD\u201c.<\/span><\/p>\n

Predvolen\u00e1 konfigur\u00e1cia HC-12 je FU3 \u2013 na kan\u00e1li 1 je FU3 plne automatick\u00e9 a transparentn\u00e9 (pre in\u00e9 zariadenia) nastavenie, ktor\u00e9 sa prisp\u00f4sobuje prenosovej r\u00fdchlosti pripojen\u00e9ho zariadenia (hoci na programovanie v pr\u00edkazovom riadku je st\u00e1le potrebn\u00e1 r\u00fdchlos\u0165 9600 baudov). re\u017eim).\u00a0<\/span><\/p>\n

V\u0161imnite si, \u017ee so zvy\u0161uj\u00facou sa prenosovou r\u00fdchlos\u0165ou kles\u00e1 citlivos\u0165 prij\u00edma\u010da.\u00a0Do predvolen\u00e9ho stavu sa m\u00f4\u017eete vr\u00e1ti\u0165 odoslan\u00edm AT+DEFAULT raz v pr\u00edkazovom re\u017eime.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Prenosov\u00e1 r\u00fdchlos\u0165 s\u00e9riov\u00e9ho portu<\/span><\/th>\nR\u00fdchlos\u0165 prenosu cez vzduch<\/span><\/th>\nCitlivos\u0165 prij\u00edma\u010da<\/span><\/th>\n<\/tr>\n
1200 bps<\/span><\/td>\n5000 bps<\/span><\/td>\n-117 dBm<\/span><\/td>\n<\/tr>\n
2400 bps<\/span><\/td>\n5000 bps<\/span><\/td>\n-117 dBm<\/span><\/td>\n<\/tr>\n
4800 bps<\/span><\/td>\n15 000 bps<\/span><\/td>\n-112 dBm<\/span><\/td>\n<\/tr>\n
9600 bps<\/span><\/td>\n15 000 bps<\/span><\/td>\n-112 dBm<\/span><\/td>\n<\/tr>\n
19200 bps<\/span><\/td>\n58 000 bps<\/span><\/td>\n-107 dBm<\/span><\/td>\n<\/tr>\n
38 400 bps<\/span><\/td>\n58 000 bps<\/span><\/td>\n-107 dBm<\/span><\/td>\n<\/tr>\n
57 600 bps<\/span><\/td>\n236 000 bps<\/span><\/td>\n-100 dBm<\/span><\/td>\n<\/tr>\n
115200 bps<\/span><\/td>\n236 000 bps<\/span><\/td>\n-100 dBm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

V “HC12 Send\/Recieve Example Program 1” sa HC-12 pou\u017e\u00edvaj\u00fa vo svojom predvolenom stave (FU3: 20mW prenos, 9600 bps, Channel 001) na vytvorenie bezdr\u00f4tov\u00e9ho mosta medzi s\u00e9riov\u00fdmi portami dvoch po\u010d\u00edta\u010dov.\u00a0Transceivery musia by\u0165 fyzicky oddelen\u00e9 aspo\u0148 1,5 metra, aby fungovali.<\/span><\/p>\n

Tento program umo\u017en\u00ed posielanie spr\u00e1v medzi dvoma po\u010d\u00edta\u010dmi cez vysiela\u010de HC-12.\u00a0Text nap\u00edsan\u00fd na jednom po\u010d\u00edta\u010di sa zobraz\u00ed na s\u00e9riovom monitore druh\u00e9ho po\u010d\u00edta\u010da.<\/span><\/p>\n

Za\u010dnite pripojen\u00edm HC-12 transceiverov ku ka\u017ed\u00e9mu Arduinu:<\/span><\/p>\n