DFRobot Gravity Series User Manual

1.Whenputtheexpansionshieldonthepyboardmotherboard,pleasepayattentiontothe
direction.ThewireterminaloftheexpansionshieldshouldbeonthesamesideastheUSB
portofthepyboardmotherboard.
2.Becausepyboardmotherboardworksat3.3V,limitedbythevoltage,itdoesnotsupport
5Vanaloginput.Allsignalpinsare0~3.3V.
3.Ifyouneedtodrivehighcurrentcomponentssuchasservosandmotors,pleaseconnect
themtoX1~X4ports,thenconnecttheexternalpowersupply,andturnthepowerswitchto
VINside.Otherwise,thepyboardmotherboardmaybedamagedduetohighcurrent.
4.ThepowersupplyofX1~X4portcanbeselected3.3VorVINbythepowerswitch.The
powersupplyvoltageoftheremainingportsareall3.3V.
Specification
 External Power Supply Voltage : 5~12V
 External Power Input Current : <1A
 Connector: Gravity series standard connector
 Ports: 12 sets of digital ports, 8 sets of analog ports, 1 set of serial port, 2 sets of I2C ports
 Interface Signal Level: High Level 3.3V, Low Level 0V
 Analog Input Range: 0~3.3V
 Onboard LDO Output Voltage: 3.3V
 Onboard LDO Output Current: <500mA
 Board Size: 33mm*42.6mm
 Board Overview

DFRobot Gravity Series Specifications

General

Brand	DFRobot
Model	Gravity Series
Category	I/O Systems
Language	English