{"product_id":"arduino-motor-shield-rev3","title":"Arduino Motor Shield Rev3","description":"\u003cp\u003e\u003cspan\u003eThe Arduino Motor Shield allows your Arduino to drive DC and stepper motors, relays and solenoids.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Shield is based on the L298 (datasheet), which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors.\u003c\/p\u003e\n\u003cp\u003eIt lets you drive two DC motors with your Arduino board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features. The shield is TinkerKit compatible, which means you can quickly create projects by plugging TinkerKit modules to the board.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGetting Started\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYou can find all the information you need to configure your board in the Getting Started section, use the Arduino Software (IDE), and start tinkering with coding and electronics.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Arduino Motor Shield must be powered only by an external power supply. Because the L298 IC mounted on the shield has two separate power connections, one for the logic and one for the motor supply driver. The required motor current often exceeds the maximum USB current rating.\u003c\/p\u003e\n\u003cp\u003eExternal (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or a battery. The adapter can be connected by plugging a 2.1mm centre-positive plug into the Arduino's board power jack on which the motor shield is mounted or by connecting the wires that lead the power supply to the Vin and GND screw terminals, taking care to respect the polarities.\u003c\/p\u003e\n\u003cp\u003eTo avoid possible damage to the Arduino board on which the shield is mounted, we recommend using an external power supply that provides a voltage between 7 and 12V. If your motor requires more than 9V we recommend that you separate the power lines of the shield and the Arduino board on which the shield is mounted. This is possible by cutting the \u003cem\u003e\"Vin Connect\"\u003c\/em\u003e jumper placed on the back side of the shield. The absolute limit for the Vin at the screw terminals is 18V.\u003c\/p\u003e\n\u003cp\u003eThe power pins are as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVin on the screw terminal block, is the input voltage to the motor connected to the shield. An external power supply connected to this pin also provide power to the Arduino board on which is mounted. By cutting the \u003cem\u003e\"Vin Connect\"\u003c\/em\u003e jumper you make this a dedicated power line for the motor.\u003c\/li\u003e\n\u003cli\u003eGND Ground on the screw terminal block.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe shield can supply 2 amperes per channel, for a total of 4 amperes maximum.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInput and Output\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003eThis shield has two separate channels, called A and B, that each use 4 of the Arduino pins to drive or sense the motor. In total there are 8 pins in use on this shield. You can use each channel separately to drive two DC motors or combine them to drive one bipolar stepper motor. The shield's pins, divided by channel are shown in the table below:\u003c\/p\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cspan\u003eFunction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan\u003epins per Ch. A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cspan\u003epins per Ch. B\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cem\u003eDirection\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD12\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cem\u003ePWM\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD3\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\u003cem\u003eBrake\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD9\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eD8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eCurrent Sensing\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eA0\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eIf you don't need the Brake and the Current Sensing and you also need more pins for your application you can disable this features by cutting the respective jumpers on the back side of the shield. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe additional sockets on the shield are described as follow: \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eScrew terminal\u003c\/span\u003e to connect the motors and their power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e2 \u003cspan class=\"wikiword\"\u003eTinkerKit\u003c\/span\u003e connectors\u003c\/span\u003e for two Analog Inputs (in white), connected to A2 and A3.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e2 \u003cspan class=\"wikiword\"\u003eTinkerKit\u003c\/span\u003e connectors\u003c\/span\u003e for two Aanlog Outputs (in orange in the middle), connected to PWM outputs on pins D5 and D6.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e2 \u003cspan class=\"wikiword\"\u003eTinkerKit\u003c\/span\u003e connectors\u003c\/span\u003e for the TWI interface (in white with 4 pins), one for input and the other one for output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMotor Connections\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBrushed DC motor\u003c\/span\u003e\u003cspan\u003e. You can drive two Brushed DC motors by connecting the two wires of each one in the (+) and (-) screw terminals for each channel A and B. In this way you can control its direction by setting HIGH or LOW the \u003c\/span\u003e\u003cspan\u003eDIR A\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003eDIR B\u003c\/span\u003e\u003cspan\u003e pins, you can control the speed by varying the \u003c\/span\u003e\u003cspan\u003ePWM A\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003ePWM B\u003c\/span\u003e\u003cspan\u003e duty cycle values.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003eBrake A\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003eBrake B\u003c\/span\u003e\u003cspan\u003e pins, if set HIGH, will effectively brake the DC motors rather than let them slow down by cutting the power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou can measure the current going through the DC motor by reading the \u003c\/span\u003e\u003cspan\u003eSNS0\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003eSNS1\u003c\/span\u003e\u003cspan\u003e pins. On each channel will be a voltage proportional to the measured current, which can be read as a normal analogue input, through the function analogRead() on the analogue input A0 and A1. For your convenience it is calibrated to be 3.3V when the channel is delivering its maximum possible current, that is 2A. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable width=\"619\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"259\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd width=\"360\"\u003e5V to 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor controller\u003c\/td\u003e\n\u003ctd\u003eL298P, Drives 2 DC motors or 1 stepper motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current\u003c\/td\u003e\n\u003ctd\u003e2A per channel or 4A max (with external power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent sensing\u003c\/td\u003e\n\u003ctd\u003e1.65V\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eFree running stop and brake function\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGetting Started\u003c\/li\u003e\n\u003cli\u003eDocuments\u003c\/li\u003e\n\u003cli\u003eSchematics\u003c\/li\u003e\n\u003cli\u003eCAD Files\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arduino","offers":[{"title":"Default Title","offer_id":52217455739168,"sku":"pir1787258026924","price":17.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/3231\/3120\/files\/arduino-motor-shield-rev3_1.jpg?v=1787258032","url":"https:\/\/www.elmwoodbasket.shop\/products\/arduino-motor-shield-rev3","provider":"My Store","version":"1.0","type":"link"}