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{"id":1097,"date":"2026-07-12T18:16:06","date_gmt":"2026-07-12T16:16:06","guid":{"rendered":"http:\/\/vps-4baf053f.vps.ovh.net\/produkt\/radiomodul-hc12\/"},"modified":"2026-07-12T19:03:52","modified_gmt":"2026-07-12T17:03:52","slug":"radiomodul-hc12","status":"publish","type":"product","link":"http:\/\/vps-4baf053f.vps.ovh.net\/produkt\/radiomodul-hc12\/","title":{"rendered":"Radiomodul HC-12, 433MHz"},"content":{"rendered":"<p>HC-12 \u00e4r en radios\u00e4ndare\/-mottagare som klarar av att skicka och ta emot digital data med upp till 1000m r\u00e4ckvidd. Modulen kopplas in till en mikrokontroller eller dator via vanlig seriekommunikation (RS-232) och inst\u00e4llningar g\u00f6rs med vanliga AT-kommandon. Tack vare detta kan tv\u00e5 av dessa moduler mycket enkelt ers\u00e4tta en vanlig seriekabel.<\/p>\n<p>Radiofrekvensen kan st\u00e4llas in mellan 433,4 och 473,0 MHz i 400 KHz steg vilket ger 100 m\u00f6jliga band.<\/p>\n<p>Modulen arbetar med 3,3V men tack vare den inbygda sp\u00e4nningsregulatorn kan den drivas med upp till 5,5 V. Om modulen ska anv\u00e4nds aktivt f\u00f6r kommunikation under l\u00e4ngre tid b\u00f6r dock sp\u00e4nningen inte \u00f6verstiga 4,5V s\u00e5 att sp\u00e4nningsregulatorn inte \u00f6verhettas. F\u00f6r 5-volts-drift kan t.ex. en <a href=\"\/?p=830\">kiseldiod<\/a> kopplas i serie med modulen f\u00f6r att s\u00e4nka sp\u00e4nningen lagom mycket.<\/p>\n<p>OBS! Denna modul kan potentiellt s\u00e4nda med h\u00f6gre effekt och p\u00e5 frekvensband som inte \u00e4r till\u00e5tna f\u00f6r privatpersoner utan s\u00e4rskild licens. Det \u00e4r upp till k\u00f6paren att se till att modulen anv\u00e4nds p\u00e5 ett till\u00e5et s\u00e4tt och att inga lagar \u00f6vertr\u00e4ds. Notera ocks\u00e5 att dessa moduler INTE fungerar tillsammans med HC-11 eller andra radiomoduler.<\/p>\n<h3>Kommunikationsl\u00e4gen:<\/h3>\n<p>Modulen har tre olika kommunkationsl\u00e4gen, FU1, FU2 och FU3 med olika hastigheter, transmissionsf\u00f6rdr\u00f6jningar och str\u00f6mf\u00f6rbrukningar. FU1 \u00e4r relativt str\u00f6msparande och kommunkationshastigheten \u00e4r konstant, FU2 \u00e4r mycket str\u00f6msparande och FU3 \u00e4r dynamisk d\u00e4r s\u00e4ndhastigheten genom luften \u00e4ndras efter kommunkationshastigheten till modulen. Vid leverans \u00e4r modulen inst\u00e4lld i l\u00e4ge FU3 och UART \u00e4r satt till 9600 bps, 1 stoppbit och ingen paritet.<\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: right;\"><strong>L\u00e4ge:<\/strong><\/td>\n<td>FU1<\/td>\n<td>FU2<\/td>\n<td>FU3<\/td>\n<td><strong>Beskrivning<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Genomsnittlig str\u00f6mf\u00f6rbrukning i vilol\u00e4ge<\/td>\n<td>3,6mA<\/td>\n<td>80\u00b5A<\/td>\n<td>16mA<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Transmissionsf\u00f6rdr\u00f6jning<\/td>\n<td>15-25ms<\/td>\n<td>500ms<\/td>\n<td>4-80ms<\/td>\n<td>s\u00e4ndning av 1 byte<\/td>\n<\/tr>\n<tr>\n<td>Transmissionsf\u00f6rdr\u00f6jning fram och tillbaka<\/td>\n<td>31ms<\/td>\n<td><\/td>\n<td>8<\/td>\n<td>S\u00e4ndning av 1 byte,\u00a0 UART satt till 9600kbps<\/td>\n<\/tr>\n<tr>\n<td>Transmissionsf\u00f6rdr\u00f6jning fram och tillbaka<\/td>\n<td>31ms<\/td>\n<td><\/td>\n<td><\/td>\n<td>S\u00e4ndning av 10 byte,\u00a0 UART satt till 9600kbps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><\/h3>\n<h3>Anslutningar:<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>Anslutning<\/strong><\/td>\n<td><strong>Funktion<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Vcc<\/td>\n<td>Drivp\u00e4nning (3,2-5,5 V)<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>Jord (minus)<\/td>\n<\/tr>\n<tr>\n<td>RXD<\/td>\n<td>RS-232 data in som ska s\u00e4ndas. 3,3V TTL, skyddad med internt 1Kohm-motst\u00e5nd<\/td>\n<\/tr>\n<tr>\n<td>TXD<\/td>\n<td>RS-232 data ut som tas emot. 3,3V TTL, skyddad med internt 1Kohm-motst\u00e5nd<\/td>\n<\/tr>\n<tr>\n<td>SET<\/td>\n<td>S\u00e4tt till l\u00e5g niv\u00e5 f\u00f6r att modulen ska ta emot AT-kommandon f\u00f6r att \u00e4ndra inst\u00e4llningar<\/td>\n<\/tr>\n<tr>\n<td>ANT1<\/td>\n<td>Koaxial-kontakt f\u00f6r antenn<\/td>\n<\/tr>\n<tr>\n<td>ANT2<\/td>\n<td>F\u00f6r fastl\u00f6dning av spiralantenn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Digital radiomodul med upp till 100m r\u00e4ckvidd.<\/p>\n","protected":false},"featured_media":54,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[56,57],"product_tag":[],"class_list":["post-1097","product","type-product","status-publish","has-post-thumbnail","product_cat-elektroniska-moduler","product_cat-kommunikation","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=\/wp\/v2\/product\/1097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1097"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=\/wp\/v2\/media\/54"}],"wp:attachment":[{"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1097"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=1097"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=1097"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/vps-4baf053f.vps.ovh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=1097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}