여러분의 지식탐구 동행자 로봇사이언스몰입니다.
Login Join Cart Order MyPage CS Center
School PayAfter 전문가에게 상품추천받기 결제오류 문의전화번호안내 회원전용 개인결제창 비회원 개인결제창
1vs1Question UserManual AttachedIcon Online Class Biz Partner Join Partner
A/S접수하기 기술문의 견적서 요청하기 할인&이벤트상품 방과후수업 코딩강사매칭

QUICK MENU

최근본상품 0

    prev
    /
    next

    추천상품 0

      prev
      /
      next

      장바구니 0

        prev
        /
        next

        위시리스트 0

          prev
          /
          next

          TOP BOTTOM
          네이버 톡톡  톡톡
           
          • 코딩교구 상품
          • [로봇사이언스몰][Pololu][폴로루] Motor Driver and Power Distribution Board for Romi Chassis #3543
            상품번호 : 11921

            아이콘 설명보기
          • 10%
          • 상품코드 : RS-011921
            * 해외상품 국내보유 재고 : 5 개
            * 재고가 0 또는 수량 부족 시 해외상품배송안내 클릭
            * 국내상품/해외상품 식별방법 보러가기
            판매가
            52,600₩

            할인내역

            구분 할인
            기본할인 4,800₩
            닫기
            47,800(부가세포함)
            무이자할부
            5만원 이상 무이자 자세히보기

            무이자할부

            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            
															3~12개월 5만원이상
            닫기
            배송
            • 3,500₩ (100,000₩ 이상 무료)
              추가배송비 : 1,000₩~10,000₩ (지역별)
              지역별차등금액적용
              달력
            적립혜택
            478₩
            상품정보

            상품정보제공고시

            품명 및 모델명 상세설명참조
            법에 의한 인증,허가 등을 받았음을 확인할수 있는 경우 그에 대한 사항 상세설명참조
            제조국 또는 원산지 상세설명참조
            제조자,수입품의 경우 수입자를 함께 표기 상세설명참조
            AS책임자와 전화번호 또는 소비자상담 관련 전화번호 상세설명참조
            상품위치 A14-010
            닫기
            고객평가
            0건  ★★★★★ (0/5)
            판매자
            본사
          • 수량
            • 총 상품금액
            • 47,800
          • 위시리스트

          [로봇사이언스몰][Pololu][포로루] Motor Driver and Power Distribution Board for Romi Chassis #3543


          Use this motor driver and power distribution board to get your Romi chassis running quickly. It offers all of the same features as the smaller Power Distribution board for Romi Chassis — battery contact slots, reverse voltage protection, several power switching options, and easy access to the various power busses — and adds a two-channel motor driver and powerful switching step-down regulator that can supply a continuous 2.5 A at 5 V or 3.3 V. Just add a microcontroller and sensors to complete your Romi robot.


          Overview

          This motor driver and power distribution board is designed specifically for the Romi chassis as a convenient way to drive the chassis’s motors and power the rest of the electronics that make up your robot. It features two DRV8838 motor drivers, one for each of the chassis’s motors, and a powerful switching step-down regulator that can supply a continuous 2.5 A at 5 V or 3.3 V. The board has slots for soldering in the Romi chassis battery contact tabs, and it incorporates the power switching and distribution functionality from the Power Distribution Board for Romi Chassis, so it offers all of the same features: reverse voltage protection, several power switching options based on the patented latching circuit from the Pololu pushbutton power switch, and easy access to the various power buses.

          The board has a small pushbutton already installed for controlling power (one push turns power on and another push turns it off) and offers convenient points for connecting external pushbutton or tactile switches in parallel. It also offers several alternate pushbutton connection options that result in push-on-only or push-off-only operation, and additional inputs enable further power control options like allowing your robot to turn off its own power. Alternatively, the board can be reconfigured to disable the pushbutton circuit and give control to the small installed slide switch.

          The board’s control pins and power buses are accessible through a set of 0.1″-spaced pins that are compatible with standard 0.1″ male and 0.1″ female headers, and the power buses are also accessible through a larger set of holes that are compatible with 3.5mm-pitch terminal blocks (you can combine a 2-pin block and a 3-pin block into a single 5-pin block that spans the three power holes and two ground holes).

          Two 1/4″ #2-56 screws and two #2-56 nuts are included for mounting the board to the Romi chassis, and two low-profile female headers are included for connecting the motors to the board.




          Using the board

          Installation

          Motor Driver and Power Distribution Board for Romi Chassis with included hardware.


          Motor Driver and Power Distribution Board for Romi Chassis mounted on a chassis prior to motor installation.

          Before installing the motor driver and power distribution board on a Romi chassis, you should solder any headers, terminal blocks, wires, or other connectors you plan to use on the board. You have a few options for connecting the Romi chassis’s motors to the board:

          • If you plan on using the Romi Encoder Pair Kit with your motors, we recommend you solder these included female headers into the outer sets of holes (closest to the edges of the board) directly below where the motors will be. With the Romi encoders mounted on your motors and their included male header pins installed facing down, they will plug directly into these female headers when you push the motors into the motor clips.

          The Romi Encoder can plug directly into the Motor Driver and Power Distribution Board for Romi Chassis.


        • Alternatively, if you do not intend to use Romi encoders, we recommend soldering wires to your motor leads and installing 3.5mm-pitch terminal blocks to the motor driver output holes along the front edge of the board. These terminal blocks will let you make temporary connections between your motors and the motor driver board. We suggest connecting the forward lead of each motor to the + (positive) motor output so that the motor directions will match the behavior described below.
        • Please read the rest of this page carefully to determine what additional connectors you might want and where they should be installed.

          It is possible to remove the board from the chassis later to solder additional connections, and some of the through holes can be soldered through the slots in the chassis while the board is mounted, but soldering beforehand is easier and avoids the risk of inadvertently melting the chassis with your soldering iron.

          The four battery terminals should be soldered to the board after it is mounted on the chassis, as described in the chassis assembly instructions. You will be able to remove the board and battery contacts from the chassis as a single piece after soldering.

          Once your you have soldered your through-hole connections to the motor driver and power distribution board, please follow the instructions given in the Pololu Romi Chassis User’s Guide to finish assembling the chassis, mounting the control board, and soldering in the battery contacts. (The diagrams in those instructions show assembly with the larger Romi 32U4 Control Board, but the same steps apply for the smaller motor driver and power distribution board.)

          Motor drivers

          The motor driver and power distribution board has two Texas Instruments DRV8838 motor drivers that can power the Romi chassis’s motors. We recommend careful reading of the DRV8838 datasheet (1MB pdf) for information about the drivers.

          By default, the drivers’ motor voltage (VM) is supplied by the board’s switched battery voltage, VSW, and their logic voltage (VCCMD) is supplied by the on-board regulator output, VREG (5 V by default). If you want to customize these voltages, you can cut the jumpers labeled VM = VSW and VCCMD = VREG and connect appropriate supplies to the VM and VCCMD pins.

          The DRV8838 offers a simple two-pin PHASE/ENABLE control interface, which this board makes available for each motor as DIR and PWM, respectively. The DIR pin determines the motor direction (low drives the motor forward, high drives it in reverse) and the PWM pin can be supplied with a PWM signal to control the motor speed. The DIR and PWM control inputs are pulled low through weak internal pull-down resistors (approximately 100 kΩ). When the PWM pin is low, the motor outputs are both shorted to ground, which results in dynamic braking of a connected motor.

          The two drivers’ SLEEP pins (labeled SLP) are connected together by default and can be driven low to put the drivers into a low-power sleep mode and turn off the motor outputs, which is useful if you want to let the motors coast. The SLEEP pins are pulled high through 10 kΩ pull-up resistors on the board so that the drivers are awake by default. In most applications, these pins can be left disconnected; if you want independent control of SLEEP on each side, you can cut the jumper labeled SLP L = R. The two SLEEP pins should not be driven separately without cutting this jumper.

          The following simplified truth table shows how each driver operates:

          DIRPWMSLEEPMotor +Motor −operating mode
          0PWM1PWMLforward/brake at speed PWM %
          1PWM1LPWMreverse/brake at speed PWM %
          X01LLbrake low (outputs shorted to ground)
          XX0ZZcoast (outputs floating/disconnected)

          Encoder connections

          The motor driver and power distribution board is designed to allow the Romi Encoder Pair Kit to plug directly into the encoder headers. The encoders can be used to track the rotational speed and direction of the robot’s drive wheels. They provide a resolution of 12 counts per revolution of the motor shaft when counting both edges of both channels, which corresponds to approximately 1440 counts per revolution of the Romi’s wheels. For more information about the specifications of the Romi encoders, please see the Romi Encoder Pair Kit product page.

          For typical use, one set of through holes on each side of the motor power and distribution board will be populated with the female header for the encoder board; we recommend using the outer set on each side for this purpose. The remaining set of through holes can be used to make connections to the encoder signals.

          For both encoders, channel B leads channel A when the motor is rotating in the forward direction; that is, B rises before A rises and B falls before A falls. Note that this description designates the A and B signals as labeled on the motor driver and power distribution board itself, which puts A in front on both sides.

          By default, both the logic voltage for the encoders (VCCENC) and the pull-up voltage for the open-drain encoder outputs (VPU) are supplied by the on-board regulator output, VREG (5 V by default). If you want to customize these voltages, you can cut the jumpers labeled VCCENC = VREG and VPU = VREG and connect appropriate supplies to the VCCENC and VPU pins.

          Power switch circuit

          By default, the on-board pushbutton can be used to toggle power: one push turns on power and another turns it off. Alternatively, a separate pushbutton can be connected to the BTNA and BTNB pins and used instead. Multiple pushbuttons can be wired in parallel for multiple control points, and each of the parallel pushbuttons, including the one on the board itself, will be able to turn the switch on or off. The latching circuit performs some button debouncing, but pushbuttons with excessive bouncing (several ms) might not function well with it.

          For proper pushbutton operation, the board’s slide switch should be left in its Off position. (Sliding the switch to the On position will cause the board power to latch on, and the switch must be returned to the Off position before the board can be turned off with the pushbutton.)

          Alternatively, to disable the pushbutton, you can cut the button jumper labeled Btn Jmp; this transfers control of the board’s power to the on-board slide switch instead. A separate slide or toggle switch can be connected to the GATE pin and used instead.

          More advanced control options are available through the button connection pins and four control inputs:

          PINDescription
          BTNAConnect through momentary switch to pin “BTNB” for standard push-on/push-off operation. Connect through momentary switch to ground for on-only operation.
          BTNBConnect through momentary switch to pin “BTNA” for standard push-on/push-off operation.
          ONA high pulse (> 1 V) on this pin turns on the switch circuit. This pin only functions when pushbutton operation is enabled (i.e. the button jumper has not been cut).
          OFFA high pulse (> 1 V) on this pin turns off the switch circuit (e.g. allowing a powered device to shut off its own power). This pin only functions when pushbutton operation is enabled.
          CTRLWith pushbutton operation enabled, this pin directly determines the state of the switch circuit. A high pulse (> 1 V) on this pin turns on the switch; a low pulse (e.g. driving the pin low with a microcontroller output line or pushing a button connected from this pin to ground) turns the switch off. Leave this pin disconnected or floating when not trying to set the switch state. Note that this pin should not be driven high at the same time the “OFF” pin is driven high.
          GATEWith pushbutton operation disabled (button jumper cut), this pin controls the state of the switch circuit: driving it low turns the switch on, while letting it float turns the switch off. Connect through slide or toggle switch to ground for on/off operation. Leave this pin disconnected or floating for proper pushbutton operation. We recommend only ever driving this pin low or leaving it floating; this pin should never be driven high while the slide switch is in the “Off” position.

          Power distribution

          The diagram below shows the layout of the power distribution buses and access points on the board.


          • VBAT is connected to the battery contact labeled BAT1+ and provides a direct connection to the battery supply. By default, VBAT is the high side of all six of the chassis’s AA battery cells in series, although this can be reconfigured with the battery jumper (see below).
          • VRP provides access to the battery voltage after reverse-voltage protection.
          • VSW is the battery voltage after reverse protection and the power switch circuit. By default, it provides power to the motors (VM) through the on-board motor drivers.
          • VREG is the output of the on-board step-down voltage regulator (see the “Voltage regulator” section below). By default, it is 5 V and provides logic power to the motor drivers (VCCMD) and encoder connectors (VCCENC and VPU).
          • BAT2+ provides access to the high side of two AA cells in series. This can be useful if you reconfigure the board to provide two separate battery supplies as described below.

          Voltage regulator

          An MP4423H switching buck converter regulates the switched battery voltage (VSW) to provide a regulated output, VREG. The regulated output is 5 V by default, but it can be changed to 3.3 V by cutting the jumper labeled VREG Select. Under typical conditions, up to 2 A of current is available from the VREG output. (We also make a standalone regulator based on this integrated circuit.)

          Battery supply configuration

          The motor driver and power distribution board’s default configuration provides battery power, VBAT, from all six of the chassis’s AA cells in series (nominally about 7.2 V with rechargeable batteries or 9 V with alkaline batteries). However, the board’s battery jumper, labeled Bat Jmp, allows you to reconfigure the battery connections to provide two independent supplies: BAT1, with 4 cells in series (nominally 4.8 V rechargeable or 6 V alkaline), and BAT2, with 2 cells in series (nominally 2.4 V rechargeable or 3 V alkaline). Cutting the connection between the BAT1− and BAT2+ pads separates the two sets of batteries, and using solder to bridge the BAT1− and GND pads establishes a common ground between the two new supplies.


          Warning:
          Do not bridge the BAT1− and GND pads without first disconnecting BAT1− from BAT2+. Failing to do so could create a short circuit across the BAT2 batteries.


          Note that the onboard regulator might not be able to supply 5 V as reliably if VBAT is reconfigured to come from a 4-cell supply, especially if you are using rechargeable batteries.

          Schematic

          A simplified schematic diagram of this board is available for download: Schematic diagram of the Motor Driver and Power Distribution Board for Romi Chassis (272k pdf)

          Other Romi boards

          In addition to the motor driver and power distribution board, we have a few other boards designed to mount onto a Romi chassis:

          • The Romi 32U4 Control Board turns the Romi chassis into an integrated robot platform. In addition to the same motor drivers and power circuit (including 5 V regulator) found on this board, the Romi 32U4 board includes an on-board ATmega32U4 microcontroller, a number of other peripherals and sensors, and interfaces for an optional LCD or Raspberry Pi.
          • The Power Distribution Board for Romi Chassis is a more basic board that only includes reverse voltage protection and a pushbutton power switch circuit; it is intended to be a convenient way to access the chassis’s battery power and pass it on to the rest of your electronics.

          Dimensions

          Weight:20 g1

          General specifications

          Current rating:5 A2
          Motor driver:DRV8838
          Motor channels:2
          Minimum operating voltage:2.5 V
          Maximum operating voltage:10.8 V
          Continuous output current per channel:1.8 A3
          Maximum PWM frequency:250 kHz
          Reverse voltage protection?:Y

          Identifying markings

          PCB dev codes:rom02a
          Other PCB markings:0J10078

          Notes:

          1
          Board only; no screws or nuts.
          2
          Of VSW.
          3
          This is also the peak output current of the motor driver; over-current protection can trigger as low as 1.9 A.


          File downloads
          Schematic diagram of the Motor Driver and Power Distribution Board for Romi Chassis (272k pdf)
          Texas Instruments DRV8837/DRV8838 motor driver datasheet (1MB pdf)
          Dimension diagram of the Motor Driver and Power Distribution Board for Romi Chassis (418k pdf)
          3D model of the Motor Driver and Power Distribution Board for Romi Chassis (9MB step)
          Drill guide for the Motor Driver and Power Distribution Board for Romi Chassis (197k dxf)
          This DXF drawing shows the locations of all of the board’s holes.


          1. 소비자상담센터 : 02-2283-1300 

          2. 상품준비 및 배송기간안내
           
              상품 출고(배송) 준비기간 
                  a. 국내상품 : 
                       1) 해당상품 : 아이콘이 부착된 상품 
                       2) 입금 확인 후 최소 0일~최대 3일(단, 품절상품 제외) 

                  b. 해외상품 :

                       1) 해당상품: 아이콘이 부착된 상품 

                       2) 구매금액 700,000원 이상 : 입금확인 후 최소 5일 ~ 최대 2주 

                       3) 구매금액 700,000원 이하 : 입금확인 후 최소 1주 ~ 최대 8주 

                       4) 단, 해외계약업체에 품절되지 않은 상품에 한함 

             ② 구매상품 종류가 많을 경우 예상 준비기간 보다 더 소요 될 수 있습니다. 

             ③ 주문하신 상품은 출고완료 메일 또는 문자 수신 후 익일~최대7일(도서,산간지역) 

                이내에 수령하실 수 있습니다. 

             ④ 제주(\3,500원)/도서지역(\5,000원)은 배송비가 추가됩니다. 

                제주,도서, 산간지역은 타 지역보다 배송기간이 길어질 수 있습니다. 

             ⑤  아이콘이 부착된 상품이라도 국내재고가 있을 수 있습니다. 

             ⑥ 해외 현지 사정으로 인해 공지한 배송기간보다 더 길어 질 수 있습니다. 

             ⑦ 해외상품은 반품/교환/취소가 어려울 수 있으니 신중히 주문하시기 바랍니다.

           

          3. 소비자의 단순변심/착오구매에 의한 청약철회제한안내 


              전자상거래 등에서의 소비자보호에 관한 법률 제17조 제2항 및 동 시행령 

                제21조에 의한 청약철회 제한 사유에 해당하는 경우 및 기타 객관적으로 

                이에 준하는 것으로 인정되는 경우에 한합니다. 

             ② 소비자의 단순변심, 착오구매에 의한 교환/반품 시에 발생하는 배송비는 

                소비자가 부담합니다. 

             ③ 판매자의 실수,제품하자 등의 사유로 인한 배송비는 판매자가 부담합니다.

           

          4. 상품의 교환/반품/보증조건 및 품질보증기준안내

           

              상품이 공급된 날(배송완료일)로부터 7일 이내에 교환/반품을 신청 할 수 있습니다. 

                그러나 아래의 사유에 해당 하는 경우에는 교환/반품 신청이 받아들여지지 않을 수도 있습니다. 

                  a. 소비자의 책임으로 인해 상품이 훼손/멸실 된 경우(확인을 위한 포장훼손제외) 

                  b. 소비자의 사용에 의해 상품의 가치가 현저하게 감소한 경우 

                  c. 시간의 경과로 인해 상품의 재판매가 불가하게 된 경우 

                  d. 판매방식의 특성으로 판매자에게 회복할 수 없는 피해가 발생한 경우 (주문제작 상품, 청약철회상품 등) 

             ② 교환/반품/보증조건 및 품질보증기준은 『소비자기본법』에 따른 소비자분쟁해결기준에 따라 피해를 보상합니다.

           

          5. 소비자피해보상 처리, 재화 등에 대한 불만 및 분쟁처리 안내

           

             ① 본 상품은 소비자 분쟁해결기준(공정거래위원회 고시)에 따라 피해를 보상받을 수 있습니다.


          관련상품

            • 아두이노 우노 R3 초보자 키트 스텝 1
            • 아두이노 실습을 위한 필수 부품이 포함된 키트, 특히 아두이노 코딩 배우기 교재를 따로 구매 하실 수 있는 제품입니다.
            • 판매가 ₩ 24,200
            • 페이지뷰 8,331
              • 조건부 무료배송
            • 라즈베리파이 고급 키트
            • 다양한 입출력-센서-디스플레이-통신-인터페이스 모듈 및 기타 액세서리로 구성된 울티메이트 라즈베리파이 키트
            • 판매가 ₩ 99,000
            • 페이지뷰 1,476
              • 조건부 무료배송
            • 아두이노 메가 2560 고급 키트
            • 아두이노 우노 R3보다 많은 입출력포트 확보가 가능하여 다양한 확장모듈 연동이 가능한 키트로 번거로운 케이블 연결을 최소화한 전문엔지니어를 위한 메가2560기반 아두이노 고급 키트
            • 판매가 ₩ 132,000
            • 페이지뷰 9,999+
              • 조건부 무료배송

          판매자 관련상품

          판매자 정보

          판매자 정보
          판매자 본사  셀러등급
          상호명 (주)위키모바일(로봇사이언스몰) 대표자 김경식
          사업자등록번호 215-87-14086 통신판매신고번호 제2008-서울송파-0867호
          연락처 02-2283-1300 사업장 소재지 서울특별시 송파구 문정동 643-1 엠스테이트 B동704호
          1. 주문하신 물품의 총 결제금액이 15만원 이상 (환율의 변동에 따라 다를 수 있음) 이면 과부가세가 발생합니다. 관부가세는 고객님께서 부담하시는 금액으로 문자를 통해 입금내역이 발송되며 해당 관세사로 입금하시면 통관처리됩니다.

          2. 해외구매 특성상 주문에서 배송까지는 평균 10~15일이 소요됩니다. 간혹 현지 제품 수급에 따라 부득이하게 시일이 더 소요 될 수 있으니 구매시 좀 더 여유있게 주문하시길 권합니다.

          3. 해외 내수품인 관계로 A/S에 대해서는 별도의 책임을 지지 않습니다.

          4. 해외배송 특성상 주문접수후 배송상태가 배송준비중으로 넘어간 경우 해외에서 국내로의 배송이 이루어지고 있다는 뜻입니다. 따라서 배송준비중으로 배송상태가 넘어간 경우 취소및 반품이 불가하므로 이점 양해 부탁드립니다.

          5. 타 해외구매대행 사이트에서 주문하신 물건과 주문날짜가 겹치지않도록 주의해 주십시오. 통관날짜가 같을 경우 합산관세가 부가되게 됩니다.
          [고객센터]
          전화 : 02-2283-1300
          팩스 : 02-2283-1304
          메일 : ask@wikimobile.co.kr
          [업무시간안내]
          -전화(채팅)상담 10:00~17:00
          -점심시간 12:30~13:40
          -토,일요일,공휴일휴무
          [계좌 예금주:(주)위키모바일]
          * 국민은행 989801-00-039436
          * 농협중앙회 317-0003-2692-21
          * 우리은행 1005-203-780214
          * 기업은행 02-2283-1300
          1.코딩N메이커[Coding&Maker]
          ARDUINO
          ADAFRUIT
          SPARKFUN
          POLOLU
          Elecfreaks
          DFRobot
          MakeBlock
          BareConductive
          KITRONIK
          PIMORONI
          SALEAE
          ASUS
          ScienceBox
          Chibitronics
          Firmtech
          ZEROPLUS
          RoboRobo
          ETboard
          카미봇
          코코아팹
          팀보로봇
          쇼핑몰이용안내
          notice qna
          goods_review 입금자찾기
          faq 쇼핑몰활용 Tips
          동영상라이브러리 골드버그장치
          자료실
          전자계약사이트
          학교장터
          나라장터
          연구원카드결제
          회사명 : (주)위키모바일(로봇사이언스몰) | 사업자등록번호 : 215-87-14086 [사업자정보확인] | 주소 : 서울특별시 송파구 법원로 114 엠스테이트 B동704호
          통신판매업 신고 : 제2008-서울송파-0867호 | 연락처 : 02-2283-1300 | FAX : 02-2283-1304 | 개인정보보호 책임자 : 김 경식 | 대표자 : 김경식
          호스팅사업자 : 가비아 퍼스트몰 | contact : ask@wikimobile.co.kr for more information
          *로봇사이언스몰의 콘텐츠 저작권은 (주)위키모바일에 있으며 무단·전재·복사 배포를 금합니다.
          회원님의 소중한 개인정보 보호를 위해 비밀번호를 주기적으로 변경하시는 것이 좋습니다.
          현재 비밀번호
          신규 비밀번호
          신규 비밀번호 확인
          비밀번호는 영문 대문자, 영문 소문자, 숫자, 특수문자 중 2가지 이상을 조합한 8~20자