{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='3 Ways to power an Arduino Board - Do you know them?' data-url='/boclips/videos/62a0e348e0c1b1390d74cb7f' data-video-url='/boclips/videos/62a0e348e0c1b1390d74cb7f' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\n3 Ways to power an Arduino Board - Do you know them?\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30358947\" href=\"/search?publisher_ids%5B%5D=30358947\"\u003eProgramming Electronics Academy\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eARDUINO POWER SECTION SCHEMATICIn our discussion here, we are going to use an Arduino UNO as the base example – much of what we cover can be extended to other common Arduino boards, but in each case you’ll need to double check for your...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eARDUINO POWER SECTION SCHEMATIC\u003cbr/\u003eIn our discussion here, we are going to use an Arduino UNO as the base example – much of what we cover can be extended to other common Arduino boards, but in each case you’ll need to double check for your specific model.\u003cbr/\u003e\u003cbr/\u003eWe are going to use the Arduino UNO schematic to inform our discussion – we’ll be looking at the power section.\u003cbr/\u003e\u003cbr/\u003eArduino Power Section Schematic\u003cbr/\u003eIt seems like a lot going on – to simplify this a bit further we’ll reduce it down to this block diagram.\u003cbr/\u003e\u003cbr/\u003earduino power options, USB, Vin, and DC jack with lines to circuit diagram\u003cbr/\u003e\u003cbr/\u003eWhen you see “USB PORT”, just imagine that’s where you plug your USB cable in, for “DC JACK” – imagine that where you plug your DC Jack in. And for the “VIN PIN”, that just the hole marked Vin on the power rail of an Arduino Board.\u003cbr/\u003e\u003cbr/\u003eOn the right side we have the 5V and 3.3V pins. In between we have some components that I’ll explain shortly.\u003cbr/\u003e\u003cbr/\u003ePOWERING ARDUINO W/ THE DC JACK\u003cbr/\u003eLet’s start with powering an Arduino with the DC jack. Let’s say you hook up a wall wort power supply, or a battery pack to that DC jack – what happens? Per the diagram you can see it powers the 5V regulator on the board.\u003cbr/\u003e\u003cbr/\u003eSchematic of powering arduino with DC jack\u003cbr/\u003eWhat’s so special about 5V? Well 5V is right in the range the microcontrollers on the Arduino board need in order to operate.\u003cbr/\u003e\u003cbr/\u003eMinimum Input voltage Maximum Input voltage Maximum Output current\u003cbr/\u003e+5V regulator 6.2V 20V 1A\u003cbr/\u003e+3.3V regulator 3.58V 16V 150mA\u003cbr/\u003eThe 5V regulator requires a min input voltage of 6.2 volts and can take a maximum input voltage of 20V – so the power supply you hook up to your DC jack needs to be in that range for voltage. The sweet spot is more like 7-12 volts, if your power supply is much higher than that, you’re wasting a lot of power on that 5V regulator in the form of heat dissipation.\u003cbr/\u003e\u003cbr/\u003eThe DC jack is 2.1mm center-positive plug. It important that the plug you use is center positive. But just in case you accidentally use a center negative plug and reverse the polarity – the circuit has a diode that protects against that.\u003cbr/\u003e\u003cbr/\u003eNow, there’s a lot of details here I am going over rather quickly. 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