{"product_id":"10pcs-jdy-22-4-2-ultra-low-power-ble-bluetooth-module-serial-transmissions-external-antenna","title":"10pcs JDY-22 4.2 Ultra Low Power BLE Bluetooth Module Serial Transmissions External Antenna","description":"\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eJDY-22 sleep pattern description:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable border=\"1\" cellspacing=\"0\" style=\"width: 568px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eSleep pattern\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstructions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eFunctional description\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eStart wake-up\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+STARTEN1\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eMode 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\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eStart sleep\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+STARTENO\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 189px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eMode 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\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cspan style=\"font-size: 14px;\"\u003e \u003cbr\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eCommon problem description:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable border=\"1\" cellspacing=\"0\" style=\"width: 568px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eProblem\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAnswer to the question\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1: how MCU disconnects the Bluetooth connection in the connection state\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eIn the connection state, the PWRC pin is pulled down, and the serial port sends AT+DISC to disconnect.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e2: how much is the current when the module wakes up\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAll mode work current is not more than 1mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e3: How much data can be written to serial port once\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eNo byte limit at 9600 baud rate\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e4: After the serial port is configured, do you need to restart it to take effect?\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is recommended to restart the module when the parameters are set\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 257px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e5: How to test the depth of sleep current in the test module\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 311px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is recommended to test the current of VCC and GND pins\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eDefault parameter configuration used in factory:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e \u003c\/span\u003e\u003cbr\u003e\u003ctable border=\"1\" cellspacing=\"0\" style=\"width: 515px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 76px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eSequence\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 143px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eFunction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 144px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eFactory default parameters\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 152px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstructions\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 76px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 143px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eSerial port baud rate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 144px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e9600\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 152px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+BAUD4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 76px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 143px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eSleep pattern\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 144px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eStart wake-up\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 152px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+STARTEN0\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 76px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e3\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 143px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eBroadcast name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 144px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eJDY-21\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 152px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+NAMHJDY-21\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 76px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 143px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eBroadcast interval\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 144px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e200MS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 152px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eAT+ADVIN1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003ePackage included:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px;\"\u003e10 x JDY-22 4.2 Ultra Low Power BLE Bluetooth Module Serial Transmissions External Antenna\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/D3\/FD\/7a6dab08-3ee5-412f-84db-fa4248cbad3d.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/64\/1A\/25cd1773-b08d-4788-93bf-053b553f863d.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/C7\/0B\/36e8b04f-eda1-4c70-b411-e9db29cdae4d.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/87\/1A\/53e44b86-f39b-4ff5-b6d6-cb47a9c756f7.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/57\/38\/9e0b5ece-3718-4b24-8c64-fe0ab73ad447.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/9F\/7C\/a81219c6-7009-455a-922c-5586ee59a98c.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/5F\/04\/1a72049b-2ed6-48ad-80c7-aed3816ba326.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/A2\/36\/3064a718-3dde-4571-b37a-3d1cfea01dd2.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/CA\/E4\/9dd4d291-d115-4ac1-95bb-781d2475a319.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/img.staticbg.com\/images\/oaupload\/banggood\/images\/CE\/49\/ca9d6cdd-958b-4814-a547-bfb471bcb48e.jpeg\"\u003e","brand":"Shopify","offers":[{"title":"Default Title","offer_id":14008730452012,"sku":"1380809","price":898.24,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/847b91e3-ebb9-4f3e-866e-227bb4a2dadb_50996ff4-3bd3-4b4a-bc09-049f994cd7e6.jpg?v=1587027662","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/10pcs-jdy-22-4-2-ultra-low-power-ble-bluetooth-module-serial-transmissions-external-antenna","provider":"Electronic Pro 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