{"title":"Power | Battery | Solar","description":null,"products":[{"product_id":"relay-for-micro-bit","title":"Relay for the Micro:bit","description":"\u003cp\u003eA solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.\u003c\/p\u003e\n\u003cp\u003eA micro:bit can turn an LED on and off directly, but anything more powerful requires something like a relay. \u003c\/p\u003e\n\u003cp\u003eThis relay can be used to switch low voltage devices such as light bulbs, a motor, a small heating element or even a string of 12V LED lighting. The voltage needs to be kept under 16V, but the relay will automatically protect itself against too much current.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSolid-sate relay (up to 2 Amps)\u003c\/li\u003e\n\u003cli\u003eActive LED indicator\u003c\/li\u003e\n\u003cli\u003eResettable ‘polyfuse’ to protect against over-current\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifications:   \u003ca href=\"https:\/\/www.monkmakes.com\/downloads\/datasheet_relay_for_mb.pdf\" target=\"_blank\"\u003eData Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-top: max(60%,326px); height: 0; width: 100%;\"\u003e\u003ciframe style=\"position: absolute; border: none; width: 100%; height: 100%; left: 0; right: 0; top: 0; bottom: 0;\" src=\"https:\/\/e.issuu.com\/embed.html?backgroundColor=%23747999\u0026amp;d=instructions_relay_for_mb_1f\u0026amp;doAutoflipPages=true\u0026amp;hideIssuuLogo=true\u0026amp;u=etchongkong\" allow=\"clipboard-write\" sandbox=\"allow-top-navigation allow-top-navigation-by-user-activation allow-downloads allow-scripts allow-same-origin allow-popups allow-modals allow-popups-to-escape-sandbox\" allowfullscreen=\"true\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"elfsight-sapp-4d3dcaa8-f6ab-403b-b880-8536ec507523\"\u003e\u003c\/div\u003e","brand":"MonkMakes","offers":[{"title":"Default Title","offer_id":1943893704734,"sku":"6K800061","price":80.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/relay_only-MAIN.jpg?v=1662186312"},{"product_id":"grove-relay","title":"Grove - Relay","description":"\u003cp\u003e\u003cspan\u003eThe Relay is a digital normally open switch that controls a relay capable of switching much higher voltages and currents than your normal Arduino \/ micro:bitboards. When set to HIGH, the LED will light up and the relay will close allowing current to flow. The peak voltage capability is 250V at 10 amps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease exercise great care when working with mains voltages— if in doubt contact a professional such as a licensed electrician for help.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\nFor all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through \u003ca href=\"http:\/\/www.seeedstudio.com\/document\/pdf\/Preface.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePreface - Getting Started\u003c\/a\u003e and \u003ca href=\"http:\/\/www.seeedstudio.com\/document\/pdf\/Introduction%20to%20Grove.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eIntroduction to Grove\u003c\/a\u003e before your using of the product.\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease visit our \u003c\/span\u003e\u003ca href=\"http:\/\/wiki.seeedstudio.com\/Grove-Relay\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan\u003ewiki\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our \u003c\/span\u003e\u003ca href=\"https:\/\/www.seeed.cc\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan\u003eforum\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Seeed","offers":[{"title":"Default Title","offer_id":7470893662238,"sku":"103020005","price":32.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/bazaar881131_4.jpg?v=1537198872"},{"product_id":"9v-pp3-battery-clip-lead-to-2-1mm-dc-connector","title":"9V PP3 Battery Clip Lead to 2.1mm DC Connector","description":"\u003cp\u003eA PP3 to 2.1mm centre-positive barrel jack DC connector, useful for connecting a 9V battery, or any of our battery cages with clip, to projects such as an Arduino or micro:bit I\/O board.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e65mm cable length.\u003c\/li\u003e\n\u003cli\u003e2.1mm centre positive barrel jack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 9V PP3 Battery Clip Lead to 2.1mm DC Connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCable Length: 65mm.\u003c\/li\u003e\n\u003cli\u003eExternal Diameter: 5.5mm.\u003c\/li\u003e\n\u003cli\u003eInternal Diameter: 2.1mm.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":18987178524768,"sku":"4132","price":9.5,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/4132_large_9v_pp3_battery_clip_lead_to_21mm_dc_connector.jpg?v=1553152050"},{"product_id":"3-x-aaa-micro-bit-battery-holder-with-on-off-switch","title":"3 x AAA micro:bit Battery Holder with on\/off switch","description":"\u003cp\u003eThis 3 x AAA Battery box features a slide and click cover, built in on\/off switch the 150mm leads terminate in a JST connector.\u003c\/p\u003e\n\u003cp\u003eThe JST connector is that same type of connector found on the\u003cspan\u003e \u003c\/span\u003emicrobit\u003cspan\u003e \u003c\/span\u003emaking it an ideal powering solution for your microbit projects.\u003c\/p\u003e\n\u003cp\u003eAs the microbit has no on\/off switch, the battery box's built in switch will allow you to power off your projects without having to disconnect anything. This will also help to extend the working life of the battery box's JST connector.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eNote:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBatteries are not included \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIt holds 3 x AAA Batteries.\u003c\/li\u003e\n\u003cli\u003eFeaturing a slide and click cover and on\/off switch.\u003c\/li\u003e\n\u003cli\u003e150mm leads terminating in a JST connector.\u003c\/li\u003e\n\u003cli\u003eThe on\/off switch prevents the need for repeatedly disconnecting and reconnecting to manage power.\u003c\/li\u003e\n\u003cli\u003eThe JST connector makes this an ideal option for powering the micro:bit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eContents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 3AA Battery box with on\/off switch, cover and JST connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDimensions:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 63mm.\u003c\/li\u003e\n\u003cli\u003eWidth: 37mm.\u003c\/li\u003e\n\u003cli\u003eHeight:15.5mm.\u003c\/li\u003e\n\u003cli\u003eLead Length: 150mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eRequires:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/kitronik.co.uk\/products\/aaa-zinc-chloride-batteries\"\u003e3 x AAA Batteries\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eResources:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/resources.kitronik.co.uk\/pdf\/2224-3-x-aaa-battery-holder-switch-jst-connector-datasheet.pdf\" target=\"_blank\"\u003eBuild Instructions\u003c\/a\u003e.\u003cimg src=\"https:\/\/resources.kitronik.co.uk\/pdf\/pdf_icon.gif\" alt=\"pdf_icon.gif\" width=\"25\" height=\"24\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":34880167149723,"sku":"2224","price":13.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/2224_large-battery-holder-3-x-AAA-jst-connector0on-off-switch-closed_700x_fcf1b910-8610-4033-ac2a-47182a964b0d.jpg?v=1674545385"},{"product_id":"jst-battery-to-servo-power-adaptor","title":"JST Battery to Servo Power Adaptor","description":"\u003cp\u003eThis handy cable allows you to power some of our fantastic products quickly and easily via a LiPo battery.\u003c\/p\u003e\n\u003cp\u003eOur\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/products\/all-in-one-robotics-board-for-bbc-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAll-in-one Robotics Board\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/products\/kitronik-16-servo-driver-board-for-the-bbc-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e16 Servo Driver Board\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003einclude a three pin header next to the power supply terminal where, with the help of this cable, you can attach a lithium polymer battery to quickly and conveniently power your project.\u003c\/p\u003e\n\u003cp\u003eUsing\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/kitronik.co.uk\/products\/4652-polymer-lithium-ion-battery-1ah\"\u003e1Ah 3.7 battery\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ehas never been easier than with this handy cable, which has a JST connector at one end and a three pin socket at the other.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThis JST to Servo Pin Connector has a JST connector at one end into a three-pin socket.\u003c\/li\u003e\n\u003cli\u003ePower boards such as our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/products\/all-in-one-robotics-board-for-bbc-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAll-in-one Robotics Board\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/products\/kitronik-16-servo-driver-board-for-the-bbc-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e16 Servo Driver Board\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewith a Lipo battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eContents:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1 x JST to Servo Pin Connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDimensions:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCable Length: 50mm.\u003c\/li\u003e\n\u003cli\u003eSee the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/resources.kitronik.co.uk\/pdf\/4176-jst-servo-connector-technical-drawing.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTechnical Drawing\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor further dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eResources:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca title=\"Tech drawing\" href=\"https:\/\/resources.kitronik.co.uk\/pdf\/4176-jst-servo-connector-technical-drawing.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTechnical Drawing\u003c\/a\u003e.\u003cimg src=\"https:\/\/resources.kitronik.co.uk\/pdf\/pdf_icon.gif\" alt=\"pdf_icon.gif\" width=\"25\" height=\"24\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":34880409272475,"sku":"4176","price":5.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/4176_large-jst-to-servo-pin-connector_700x_0addf5a6-0b89-4edb-93de-4ee5fdc488c7.jpg?v=1612708914"},{"product_id":"mi-power-board-for-the-micro-bit-v-2","title":"MI:power board for the  micro:bit v.1 and  v.2 (without the battery)","description":"\u003cp data-mce-fragment=\"1\"\u003eThe MI:power board for the BBC micro:bit brings real portability to your wearable projects. The stylish, lightweight PCB is designed to fit snugly against the BBC micro:bit and features a built-in buzzer and 3V coin cell holder. This latest version has been redesigned to fit both the the V1 and\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/bbc-micro-bit-v-2-starter-kit\" target=\"_blank\"\u003eV2 micro:bit\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWhen assembled, the MI:power board is connected directly to the 3V, GND and P0 connections on the micro:bit. The 3V and GND connections provide power to the micro:bit and the built-in buzzer is connected to P0, which is the default output pin when using the audio functions in the Block Editor software.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe board has an\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003eeasy to access on\/off switch\u003c\/strong\u003e, which makes it easy to turn a project on and off, rather than have to disconnect the power supply from the BBC micro:bit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOnce the unit is assembled and attached to the BBC micro:bit the mechanical fixings prevent the battery from being removed unless you use a screwdriver, so whatever the use, the battery will remain safely in place.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eImportant:   Coin battery is NOT included\u003c\/p\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":37931244421275,"sku":"CK_5610-V2_01","price":60.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/5610_large-kitronik-mi-power-microbit-v2-accessory_700x_90b78998-e7c4-4414-99e1-611e4cbc3154.jpg?v=1612924875"},{"product_id":"type-a-5v-usb-power-supply-uk-mains-1a","title":"Type A 5V USB Power Supply - UK Mains 1A","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis is a type A 5V 1A USB mains power supply, featuring a USB output connector.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis can be used for mobile phones, mp3\/mp4 players, Kindle, RaspberryPi, and for powering static projects that can be set up near to a wall socket.\u003c\/p\u003e\n\u003cp\u003eIt is suitable for use with both; our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/kitronik.co.uk\/products\/4101-usb-power-lead.html\"\u003eUSB power lead\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand also for powering the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/kitronik-alarm-clock-kit-with-zip-halo-hd-for-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eKitronik ZIP Halo HD Alarm Clock Kit\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThis power supply is protected against; over-voltage, over current, and over temperature and complies with both RoHS and CE safety standards.\u003c\/p\u003e\n\u003cp\u003e \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIt supplies 5V, 1A via a USB output.\u003c\/li\u003e\n\u003cli\u003ePerfect for static projects that can be set up near a mains outlet.\u003c\/li\u003e\n\u003cli\u003eSupplied with UK mains plug.\u003c\/li\u003e\n\u003cli\u003eCan be used with our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/usb-power-lead\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUSB power lead\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eSuitable for use with the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/kitronik-alarm-clock-kit-with-zip-halo-hd-for-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eKitronik ZIP Halo HD Alarm Clock Kit\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 5V, 1A mains USB power suppy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis product is supplied with a UK mains plug and is designed to work off a 230V, 50Hz supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eRequires:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/kitronik.co.uk\/products\/4101-usb-power-lead.html\"\u003eUSB power lead\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eResources:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/resources.kitronik.co.uk\/pdf\/22610-5v-1a-usb-power-supply-datasheet.pdf\" title=\"5v 1a usb mains power supply datasheet\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003cimg height=\"24\" width=\"25\" alt=\"pdf_icon.gif\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0254\/1191\/1743\/files\/pdf_icon_8e42f9e6-ae48-4250-9bd9-3a2c59c1eccb.gif?v=1600101273\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":40751555215515,"sku":"2261","price":86.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/2261_large_5v_usb_power_supply_1000x_31318d05-a539-4371-b408-baf68708f99a.jpg?v=1628325366"},{"product_id":"usb-to-2-1mm-dc-jack","title":"USB -B to 2.1mm Jack Cable, 5V, 2A","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThis is a simple cable that adapts from a USB port to a 5.5 x 2.1mm barrel connector, centre positive. This cable allows the user to use a USB port on a computer, laptop, or on our USB power supply to provide development boards with 5V. The cable is rated for a maximum of 2A.\u003c\/p\u003e\n\u003cp\u003eThe USB specification limits current consumption to a max of 500mA from a USB port so if more current is required a suitable power supply is needed. It also features a generous cable length of 1M.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdapt from a USB port to a 5.5 x 2.1mm barrel connector.\u003c\/li\u003e\n\u003cli\u003eRated for a max of 2A.\u003c\/li\u003e\n\u003cli\u003eIt also features a generous cable length of 1M.\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eContents:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x USB to 2.1mm DC lead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLead Length: 1M.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":40751556657307,"sku":"4179","price":18.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/4179_large-usb-2.1mm-barrel-connector_1000x_9924f7fe-95b4-4ee5-bb80-513ea9ad8e8a.jpg?v=1628326534"},{"product_id":"micro-usb-data-cable","title":"1 m micro:bit USB data cable","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis Micro USB cable up to 1 meter in length and is white overall. It has excellent workmanship and stable data transmission. We can use it to download programs for Micro:bit, STM32, 51 MCU. It can also be used as a power supply cable to charge mobile phones with the same model interface or transfer data between the mobile phone and the computer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Yahboom","offers":[{"title":"Default Title","offer_id":41122133016731,"sku":"6000300063","price":8.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/1_700x_f6448f3e-05fa-4d61-ae32-1af7fe05bc96.jpg?v=1632295491"},{"product_id":"2-aaa-battery-storage-case-box-for-bbc-micro-bit","title":"2 AAA battery storage case box with on\/off switch for BBC micro:bit","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe case with ON-OFF switch cover, xh2.0 wire leads for BBC micro:bit 3v and 158mm wire leads.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e","brand":"Yahboom","offers":[{"title":"Default Title","offer_id":41122135670939,"sku":"6000300008","price":8.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/AAA_battery_box_2_700x_3950e16d-1239-46be-8913-dedd7236bcc4.jpg?v=1632295886"},{"product_id":"usb-power-lead","title":"USB Power Lead","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eTake power from a PC with this handy USB lead. The lead is 1m long and has pre tinned red and black wires which connect to the 5V pins on the USB plug.\u003c\/p\u003e\n\u003cp\u003eThe USB standard allows peripherals to draw 100mA each, which is enough to power an LED or most simple circuits.\u003c\/p\u003e\n\u003cp\u003eThis power lead is also ideal for use with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/type-a-5v-usb-power-supply-uk-mains-1a\" target=\"_blank\"\u003e5V, 500mA mains power supply\u003c\/a\u003e. This combination is ideal for powering static projects that can be set up near to a wall socket.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTake power for you project from a PC.\u003c\/li\u003e\n\u003cli\u003ePre-tinned colour coded leads.\u003c\/li\u003e\n\u003cli\u003eIdeal for use with the \u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/type-a-5v-usb-power-supply-uk-mains-1a\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e5V, 500mA mains power supply\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eContains:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x USB Power Lead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":41243832451227,"sku":"4101","price":8.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/4101_large_USB_power_lead_600x_c3739ce1-3995-43f5-8643-51ef1c096f97.jpg?v=1632638872"},{"product_id":"3-x-aa-battery-cage-with-lead-and-2-1mm-dc-jack","title":"3 x AA Battery Cage with Lead and 2.1mm DC jack","description":"\u003cp\u003e3xAA Battery Holder with a built-in lead that terminates in a 2.1mm DC jack, the lead and jack combined is approx. 150mm in length.  Features clip-in side holders for easy access to the battery compartment. The case is hard plastic and is resistant to sudden impacts and vibrations. An ideal way to power projects with a barrel jack 2.1mm input using AA batteries., such as; \u003ca href=\"https:\/\/www.etchkshop.com\/collections\/bbc-micro-bit\/products\/kitronik-alarm-clock-kit-with-zip-halo-hd-for-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eKitronik Alarm Clock Kit with ZIP Halo HD for micro:bit\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHolds 3 x AA batteries.\u003c\/li\u003e\n\u003cli\u003eClip-in side holders for easy access.\u003c\/li\u003e\n\u003cli\u003eLead that terminates in a 2.1mm DC jack,\u003cspan\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eapprox. 150mm in length\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eCase resistant to sudden impacts and vibrations.\u003c\/li\u003e\n\u003cli\u003eBatteries are held firmly in place in use whilst being easy to remove.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eContents:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 3 x AA Battery Cage with Lead and 2.1mm DC jack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 57.82mm.\u003c\/li\u003e\n\u003cli\u003eWidth: 47.91mm.\u003c\/li\u003e\n\u003cli\u003eHeight: 16.8mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRequires:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3 x\u003cspan\u003e \u003c\/span\u003eAA Batteries.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":41243900969115,"sku":"2284","price":21.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/2284_large-battery-cage-with-lead-2.1mm-DC-barrel-jack-connector_1000x_586be98c-9c38-4dc6-8422-301afd5dc09b.jpg?v=1632639785"},{"product_id":"switch-for-the-micro-bit","title":"Switch for the Micro:bit","description":"\u003cp\u003eA solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.\u003c\/p\u003e\n\u003cp\u003eThis board can be used to switch low voltage devices such as light bulbs, a motor, a small heating element or even a string of 12V LED lighting. The voltage needs to be kept under 16V, but the switch will automatically protect itself against too much current.\u003c\/p\u003e\n\u003cp\u003ePlease note that the individual boards are packed in antistatic bubblewrap bags.\u003c\/p\u003e\n\u003cp\u003eSpecifications:   \u003ca href=\"https:\/\/www.monkmakes.com\/downloads\/datasheet_switch_for_mb.pdf\" target=\"_blank\"\u003eData Sheet\u003c\/a\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-top: max(60%,326px); height: 0; width: 100%;\"\u003e\u003ciframe style=\"position: absolute; border: none; width: 100%; height: 100%; left: 0; right: 0; top: 0; bottom: 0;\" src=\"https:\/\/e.issuu.com\/embed.html?backgroundColor=%2376749e\u0026amp;d=instructions_switch_for_mb\u0026amp;doAutoflipPages=true\u0026amp;hideIssuuLogo=true\u0026amp;u=etchongkong\" allow=\"clipboard-write\" sandbox=\"allow-top-navigation allow-top-navigation-by-user-activation allow-downloads allow-scripts allow-same-origin allow-popups allow-modals allow-popups-to-escape-sandbox\" allowfullscreen=\"true\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"MonkMakes","offers":[{"title":"Default Title","offer_id":43302134186241,"sku":"SKU00095","price":53.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/side_on_web.jpg?v=1662214621"},{"product_id":"power-for-micro-bit","title":"Power for micro:bit","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" mce-data-marked=\"1\"\u003eO\u003c\/span\u003epens up lots of ways of powering your micro:bit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe board has a standard DC barrel jack that accepts between 4.5 and 12V and provides a regulated 3V output to the micro:bit via its JST battery connector.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSpecifications: \u003ca href=\"https:\/\/www.monkmakes.com\/downloads\/datasheet_power_for_mb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-top: max(60%,326px); height: 0; width: 100%;\"\u003e\u003ciframe src=\"https:\/\/e.issuu.com\/embed.html?backgroundColor=%2384848c\u0026amp;d=instructions_power_for_mb\u0026amp;doAutoflipPages=true\u0026amp;hideIssuuLogo=true\u0026amp;u=etchongkong\" style=\"position: absolute; border: none; width: 100%; height: 100%; left: 0; right: 0; top: 0; bottom: 0;\" allowfullscreen=\"true\" sandbox=\"allow-top-navigation allow-top-navigation-by-user-activation allow-downloads allow-scripts allow-same-origin allow-popups allow-modals allow-popups-to-escape-sandbox\" allow=\"clipboard-write\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"MonkMakes","offers":[{"title":"Default Title","offer_id":43302197559553,"sku":"SKU00074","price":80.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0214\/4060\/products\/mb_power_main-300x262.jpg?v=1662219817"}],"url":"https:\/\/www.etchkshop.com\/collections\/mb-power\/ipad.oembed","provider":"ETC Educational Technology Connection (HK) Ltd","version":"1.0","type":"link"}