{"product_id":"3pcs-jdy-22-4-2-ultra-low-power-ble-bluetooth-module-serial-transmissions-external-antenna","title":"3pcs JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna","description":"\u003cstrong\u003eJDY-22 sleep pattern description:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e   \u003ctable border=\"1\" cellspacing=\"0\" style=\"width:568px;\"\u003e    \u003ctbody\u003e     \u003ctr\u003e      \u003ctd style=\"width:189px;\"\u003e Sleep pattern\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e Instructions\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e Functional description\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:189px;\"\u003e Start wake-up\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e AT+STARTEN1\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e Mode 1: wake up call, users need sleep can be controlled by AT+SLEEP command, wake up can be awakened by PWRC pin low level.\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:189px;\"\u003e Start sleep\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e AT+STARTENO\u003c\/td\u003e      \u003ctd style=\"width:189px;\"\u003e Mode 0: the power is very low under?this mode.?The connection calls the permeable transmission current at 900uA, disconnects the connection current below 200uA (can set the broadcast interval current to 30uA), this mode PWRC pin wake up, such as the serial port in 10 seconds without data or will not be connected to sleep automatically again into sleep\u003c\/td\u003e     \u003c\/tr\u003e    \u003c\/tbody\u003e   \u003c\/table\u003e ?  \u003cbr\u003e   \u003cstrong\u003eCommon problem description:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e   \u003ctable border=\"1\" cellspacing=\"0\" style=\"width:568px;\"\u003e    \u003ctbody\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e Problem\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e Answer to the question\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e 1: how?MCU disconnects the bluetooth connection in the connection state\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e In the connection state, the PWRC pin is pulled down, and the serial port sends AT+DISC to disconnect.\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e 2: how much is the current when the module wakes up\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e All mode work current is not more than 1mA\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e 3: How much data can be written to serial port once\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e No byte limit at 9600 baud rate\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e 4: After the?serial port is configured, do you need to restart it to take effect?\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e It is recommended to restart the module when the parameters are set\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:257px;\"\u003e 5: How to test the depth of sleep current in the test module\u003c\/td\u003e      \u003ctd style=\"width:311px;\"\u003e It is recommended to test the current of VCC and GND pins\u003c\/td\u003e     \u003c\/tr\u003e    \u003c\/tbody\u003e   \u003c\/table\u003e   \u003cbr\u003e   \u003cstrong\u003eDefault parameter configuration used in factory:\u003c\/strong\u003e  \u003cbr\u003e ?  \u003cbr\u003e   \u003ctable border=\"1\" cellspacing=\"0\" style=\"width:515px;\"\u003e    \u003ctbody\u003e     \u003ctr\u003e      \u003ctd style=\"width:76px;\"\u003e Sequence\u003c\/td\u003e      \u003ctd style=\"width:143px;\"\u003e Function\u003c\/td\u003e      \u003ctd style=\"width:144px;\"\u003e Factory default parameters\u003c\/td\u003e      \u003ctd style=\"width:152px;\"\u003e Instructions\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:76px;\"\u003e 1\u003c\/td\u003e      \u003ctd style=\"width:143px;\"\u003e Serial port baud rate\u003c\/td\u003e      \u003ctd style=\"width:144px;\"\u003e 9600\u003c\/td\u003e      \u003ctd style=\"width:152px;\"\u003e AT+BAUD4\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:76px;\"\u003e 2\u003c\/td\u003e      \u003ctd style=\"width:143px;\"\u003e Sleep pattern\u003c\/td\u003e      \u003ctd style=\"width:144px;\"\u003e Start wake-up\u003c\/td\u003e      \u003ctd style=\"width:152px;\"\u003e AT+STARTEN0\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:76px;\"\u003e 3\u003c\/td\u003e      \u003ctd style=\"width:143px;\"\u003e Broadcast name\u003c\/td\u003e      \u003ctd style=\"width:144px;\"\u003e JDY-21\u003c\/td\u003e      \u003ctd style=\"width:152px;\"\u003e AT+NAMHJDY-21\u003c\/td\u003e     \u003c\/tr\u003e     \u003ctr\u003e      \u003ctd style=\"width:76px;\"\u003e 4\u003c\/td\u003e      \u003ctd style=\"width:143px;\"\u003e Broadcast interval\u003c\/td\u003e      \u003ctd style=\"width:144px;\"\u003e 200MS\u003c\/td\u003e      \u003ctd style=\"width:152px;\"\u003e AT+ADVIN1\u003c\/td\u003e     \u003c\/tr\u003e    \u003c\/tbody\u003e   \u003c\/table\u003e   \u003cbr\u003e   \u003cstrong\u003ePackage?included:\u003c\/strong\u003e  \u003cbr\u003e   \u003cbr\u003e 3 x JDY-22 4.2 Ultra Low Power BLE bluetooth Module Serial Transmissions External Antenna  \u003cbr\u003e     \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/D3\/FD\/7a6dab08-3ee5-412f-84db-fa4248cbad3d.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/64\/1A\/25cd1773-b08d-4788-93bf-053b553f863d.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/C7\/0B\/36e8b04f-eda1-4c70-b411-e9db29cdae4d.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/87\/1A\/53e44b86-f39b-4ff5-b6d6-cb47a9c756f7.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/57\/38\/9e0b5ece-3718-4b24-8c64-fe0ab73ad447.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/9F\/7C\/a81219c6-7009-455a-922c-5586ee59a98c.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/5F\/04\/1a72049b-2ed6-48ad-80c7-aed3816ba326.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/A2\/36\/3064a718-3dde-4571-b37a-3d1cfea01dd2.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/CA\/E4\/9dd4d291-d115-4ac1-95bb-781d2475a319.jpeg\"\u003e   \u003cbr\u003e    \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/CE\/49\/ca9d6cdd-958b-4814-a547-bfb471bcb48e.jpeg\"\u003e   \u003cbr\u003e","brand":"ZHIQIAN","offers":[{"title":"Default Title","offer_id":43928486445251,"sku":"ZHIQIAN-011524","price":462.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/4355\/1683\/files\/7a6dab08-3ee5-412f-84db-fa4248cbad3d.jpg?v=1725737233","url":"https:\/\/wrsss.com\/products\/3pcs-jdy-22-4-2-ultra-low-power-ble-bluetooth-module-serial-transmissions-external-antenna","provider":"Wrsss","version":"1.0","type":"link"}