Espressif Systems ESP32-S3-MINI-1 User manual

ESP32-S3-MINI-1ESP32-S3-MINI-1UUserManualSmall-sizedmodulesupporting2.4GHzWi-Fi(802.11b/g/n)andBluetooth®5(LE)BuiltaroundESP32-S3seriesofSoCs,Xtensa®dual-core32-bitLX7microprocessor8MBflash39GPIOs,richsetofperipheralsOn-boardPCBantennaorexternalantennaconnectorESP32-S3-MINI-1ESP32-S3-MINI-1UPre-releasev0.6EspressifSystemsCopyright©2022www.espressif.com

1ModuleOverview1ModuleOverview1.1FeaturesCPUandOn-ChipMemory•ESP32-S3FN8embedded,Xtensa®dual-core32-bitLX7microprocessor,upto240MHz•384KBROM•512KBSRAM•16KBSRAMinRTC•8MBSPIflashWi-Fi•802.11b/g/n•Bitrate:802.11nupto150Mbps•A-MPDUandA-MSDUaggregation•0.4µsguardintervalsupport•Centerfrequencyrangeofoperatingchannel:2412~2462MHzBluetooth•BluetoothLE:Bluetooth5,Bluetoothmesh•Speed:125Kbps,500Kbps,1Mbps,2Mbps•Advertisingextensions•Multipleadvertisementsets•Channelselectionalgorithm#2Peripherals•GPIO,SPI,LCDinterface,Camerainterface,UART,I2C,I2S,remotecontrol,pulsecounter,LEDPWM,USB1.1OTG,USBSerial/JTAGcontroller,MCPWM,SDIOhost,GDMA,TWAI®controller(compatiblewithISO11898-1,i.e.CANSpecification2.0),ADC,touchsensor,temperaturesensor,timersandwatchdogsIntegratedComponentsonModule•40MHzcrystaloscillatorAntennaOptions•On-boardPCBantenna(ESP32-S3-MINI-1)•Externalantennaviaaconnector(ESP32-S3-MINI-1U)OperatingConditions•Operatingvoltage/Powersupply:3.0~3.6V•Operatingambienttemperature:–40~85°C1.2DescriptionESP32-S3-MINI-1andESP32-S3-MINI-1Uaretwopowerful,genericWi-Fi+BluetoothLEMCUmodulesthatfeaturearichsetofperipherals,yetanoptimizedsize.TheyareanidealchoiceforawidevarietyofapplicationscenariosrelatedtoInternetofThings(IoT),suchasembeddedsystems,smarthome,wearableelectronics,etc.ESP32-S3-MINI-1comeswithaPCBantenna.ESP32-S3-MINI-1Ucomeswithanexternalantennaconnector.TheorderinginformationofthemoduleisshowninTable1.Theinformationinthisdatasheetisapplicabletobothmodules.EspressifSystems2SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

1ModuleOverviewTable1:OrderingInformationModuleESP32-S3-MINI-1ESP32-S3-MINI-1UVariantsESP32-S3-MINI-1-N8ESP32-S3-MINI-1U-N8ChipEmbeddedESP32-S3FN8Flash8MB(QuadSPI)PSRAM0Dimensions15.4×20.5×2.415.4×15.4×2.4AtthecoreofthemodulesisanESP32-S3FN8,anXtensa®32-bitLX7CPUthatoperatesatupto240MHz.YoucanpowerofftheCPUandmakeuseofthelow-powerco-processortoconstantlymonitortheperipheralsforchangesorcrossingofthresholds.ESP32-S3FN8integratesarichsetofperipheralsincludingSPI,LCD,Camerainterface,UART,I2C,I2S,remotecontrol,pulsecounter,LEDPWM,USBSerial/Jtag,MCPWM,SDIOhost,GDMA,TWAI®controller(compatiblewithISO11898-1,i.e.CANSpecification2.0),ADC,touchsensor,temperaturesensor,timersandwatchdogs,aswellasupto45GPIOs.Italsoincludesafull-speedUSB1.1On-The-Go(OTG)interfacetoenableUSBcommunication.Note:*FormoreinformationonESP32-S3FN8,pleaserefertoESP32-S3SeriesDatasheet.EspressifSystems3SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

ContentsContents1ModuleOverview21.1Features21.2Description22PinDefinitions52.1PinLayout52.2PinDescription53GetStarted83.1WhatYouNeed83.2HardwareConnection83.3SetupDevelopmentEnvironment93.3.1InstallPrerequisites93.3.2GetESP-IDF93.3.3SetupTools103.3.4SetupEnvironmentVariables103.4CreateYourFirstProject103.4.1StartaProject103.4.2ConnectYourDevice103.4.3Configure113.4.4BuildtheProject113.4.5FlashontotheDevice123.4.6Monitor134U.S.FCCStatement155IndustryCanadaStatement196RelatedDocumentationandResources22RevisionHistory23EspressifSystems4SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

2PinDefinitions2PinDefinitions2.1PinLayoutThepindiagrambelowshowstheapproximatelocationofpinsonthemodule.ThepindiagramisapplicableforESP32-S3-MINI-1andESP32-S3-MINI-1U,butthelatterhasnokeepoutzone.
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12
Pin 13
Pin 14
Pin 15
GND
GND
3V3
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IO10
IO11
Pin 63
GND
IO12 Pin 16
Pin 17
Pin 18 Pin 19
Pin 20
Pin 21
Pin 22
Pin 23 Pin 24
Pin 25
Pin 26 Pin 27
Pin 28 Pin 29
Pin 30
Pin 64
GND
Pin 31
IO13
IO14
IO15
IO16
IO17 IO18 IO19
IO20
IO21
IO26
IO47 IO33
IO34
IO48
Pin 32
Pin 33
Pin 34
Pin 35
Pin 36
Pin 37
Pin 38
Pin 39
Pin 40
Pin 41
Pin 42
Pin 43
Pin 44
Pin 45
Pin 65
GND
Pin 62
GND
Pin 46 Pin 47 Pin 48 Pin 49 Pin 50
Pin 51
Pin 52
Pin 53 Pin 54
Pin 55
Pin 56 Pin 57 Pin 58 Pin 59 Pin 60
Pin 61
GND
GND GND GND
GND
GND
GND GND GND
IO35
IO36
IO37
IO38
IO39
IO40
IO41
IO42
TXD0
RXD0
IO45
GND
GND
IO46
EN
GND GND GND
GND GND
GND GND GND GND GND GND GND GND GND GND
Keepout Zone
Figure1:PinLayout(TopView)2.2PinDescriptionThemodulehas65pins.SeepindefinitionsinTable2.Forexplanationsofpinnamesandfunctionnames,aswellasconfigurationsofperipheralpins,pleaserefertoESP32-S3SeriesDatasheet.EspressifSystems5SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

2PinDefinitionsTable2:PinDefinitionsNameNo.TypeaFunctionGND1,2,42,43,46-65PGND3V33PPowersupplyIO04I/O/TRTC_GPIO0,GPIO0IO15I/O/TRTC_GPIO1,GPIO1,TOUCH1,ADC1_CH0IO26I/O/TRTC_GPIO2,GPIO2,TOUCH2,ADC1_CH1IO37I/O/TRTC_GPIO3,GPIO3,TOUCH3,ADC1_CH2IO48I/O/TRTC_GPIO4,GPIO4,TOUCH4,ADC1_CH3IO59I/O/TRTC_GPIO5,GPIO5,TOUCH5,ADC1_CH4IO610I/O/TRTC_GPIO6,GPIO6,TOUCH6,ADC1_CH5IO711I/O/TRTC_GPIO7,GPIO7,TOUCH7,ADC1_CH6IO812I/O/TRTC_GPIO8,GPIO8,TOUCH8,ADC1_CH7,SUBSPICS1IO913I/O/TRTC_GPIO9,GPIO9,TOUCH9,ADC1_CH8,FSPIHD,SUBSPIHDIO1014I/O/TRTC_GPIO10,GPIO10,TOUCH10,ADC1_CH9,FSPICS0,FSPIIO4,SUBSPICS0IO1115I/O/TRTC_GPIO11,GPIO11,TOUCH11,ADC2_CH0,FSPID,FSPIIO5,SUBSPIDIO1216I/O/TRTC_GPIO12,GPIO12,TOUCH12,ADC2_CH1,FSPICLK,FSPIIO6,SUBSPICLKIO1317I/O/TRTC_GPIO13,GPIO13,TOUCH13,ADC2_CH2,FSPIQ,FSPIIO7,SUBSPIQIO1418I/O/TRTC_GPIO14,GPIO14,TOUCH14,ADC2_CH3,FSPIWP,FSPIDQS,SUBSPIWPIO1519I/O/TRTC_GPIO15,GPIO15,U0RTS,ADC2_CH4,XTAL_32K_PIO1620I/O/TRTC_GPIO16,GPIO16,U0CTS,ADC2_CH5,XTAL_32K_NIO1721I/O/TRTC_GPIO17,GPIO17,U1TXD,ADC2_CH6IO1822I/O/TRTC_GPIO18,GPIO18,U1RXD,ADC2_CH7,CLK_OUT3IO1923I/O/TRTC_GPIO19,GPIO19,U1RTS,ADC2_CH8,CLK_OUT2,USB_D-IO2024I/O/TRTC_GPIO20,GPIO20,U1CTS,ADC2_CH9,CLK_OUT1,USB_D+IO2125I/O/TRTC_GPIO21,GPIO21IO2626I/O/TSPICS1,GPIO26IO4727I/O/TSPICLK_P_DIFF,GPIO47,SUBSPICLK_P_DIFFIO3328I/O/TSPIIO4,GPIO33,FSPIHD,SUBSPIHDIO3429I/O/TSPIIO5,GPIO34,FSPICS0,SUBSPICS0IO4830I/O/TSPICLK_N_DIFF,GPIO48,SUBSPICLK_N_DIFFIO3531I/O/TSPIIO6,GPIO35,FSPID,SUBSPIDIO3632I/O/TSPIIO7,GPIO36,FSPICLK,SUBSPICLKIO3733I/O/TSPIDQS,GPIO37,FSPIQ,SUBSPIQIO3834I/O/TGPIO38,FSPIWP,SUBSPIWPIO3935I/O/TMTCK,GPIO39,CLK_OUT3,SUBSPICS1IO4036I/O/TMTDO,GPIO40,CLK_OUT2IO4137I/O/TMTDI,GPIO41,CLK_OUT1Cont’donnextpageEspressifSystems6SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

2PinDefinitionsTable2–cont’dfrompreviouspageNameNo.TypeaFunctionIO4238I/O/TMTMS,GPIO42TXD039I/O/TU0TXD,GPIO43,CLK_OUT1RXD040I/O/TU0RXD,GPIO44,CLK_OUT2IO4541I/O/TGPIO45IO4644I/O/TGPIO46EN45IHigh:on,enablesthechip.Low:off,thechippowersoff.Note:DonotleavetheENpinfloating.aP:powersupply;I:input;O:output;T:highimpedance.Pinfunctionsinboldfontarethedefaultpinfunctions.Forpin28∼29,31∼33,thedefaultfunctionisdecidedbyeFusebit.EspressifSystems7SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

3GetStarted3GetStarted3.1WhatYouNeedTodevelopapplicationsformoduleyouneed:•1xESP32-S3-MINI-1orESP32-S3-MINI-1U•1xEspressifRFtestingboard•1xUSB-to-Serialboard•1xMicro-USBcable•1xPCrunningLinuxInthisuserguide,wetakeLinuxoperatingsystemasanexample.FormoreinformationabouttheconfigurationonWindowsandmacOS,pleaserefertoESP-IDFProgrammingGuide.3.2HardwareConnection1.SoldertheESP32-S3-MINI-1orESP32-S3-MINI-1UmoduletotheRFtestingboardasshowninFigure2.Figure2:HardwareConnection2.ConnecttheRFtestingboardtotheUSB-to-SerialboardviaTXD,RXD,andGND.3.ConnecttheUSB-to-SerialboardtothePC.4.ConnecttheRFtestingboardtothePCorapoweradaptertoenable5Vpowersupply,viatheMicro-USBcable.5.Duringdownload,connectIO0toGNDviaajumper.Then,turn”ON”thetestingboard.6.Downloadfirmwareintoflash.Fordetails,seethesectionsbelow.EspressifSystems8SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

3GetStarted7.Afterdownload,removethejumperonIO0andGND.8.PoweruptheRFtestingboardagain.Themodulewillswitchtoworkingmode.Thechipwillreadprogramsfromflashuponinitialization.Note:IO0isinternallylogichigh.IfIO0issettopull-up,theBootmodeisselected.Ifthispinispull-downorleftfloating,theDownloadmodeisselected.FormoreinformationonESP32-S3-MINI-1orESP32-S3-MINI-1U,pleaserefertoESP32-S3SeriesDatasheet.3.3SetupDevelopmentEnvironmentTheEspressifIoTDevelopmentFramework(ESP-IDFforshort)isaframeworkfordevelopingapplicationsbasedontheEspressifESP32.UserscandevelopapplicationswithESP32-S3inWindows/Linux/macOSbasedonESP-IDF.HerewetakeLinuxoperatingsystemasanexample.3.3.1InstallPrerequisitesTocompilewithESP-IDFyouneedtogetthefollowingpackages:•CentOS7&8:1sudo yum -y update && sudo yum install git wget flex bison gperf python3 python3-
pip
2python3-setuptools cmake ninja-build ccache dfu-util libusbx
•UbuntuandDebian:1sudo apt-get install git wget flex bison gperf python3 python3-pip python3-
setuptools
2cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0
•Arch:1sudo pacman -S --needed gcc git make flex bison gperf python-pip cmake ninja
ccache
2dfu-util libusb
Note:•Thisguideusesthedirectory~/esponLinuxasaninstallationfolderforESP-IDF.•KeepinmindthatESP-IDFdoesnotsupportspacesinpaths.3.3.2GetESP-IDFTobuildapplicationsforESP32-S3-MINI-1orESP32-S3-MINI-1Umodule,youneedthesoftwarelibrariesprovidedbyEspressifinESP-IDFrepository.TogetESP-IDF,createaninstallationdirectory(~/esp)todownloadESP-IDFtoandclonetherepositorywith‘gitclone’:EspressifSystems9SubmitDocumentationFeedbackESP32-S3-MINI-1&MINI-1UUserManualv0.6

3GetStarted1mkdir -p ~/esp
2cd ~/esp
3git clone --recursive https://github.com/espressif/esp-idf.git
ESP-IDFwillbedownloadedinto~/esp/esp-idf.ConsultESP-IDFVersionsforinformationaboutwhichESP-IDFversiontouseinagivensituation.3.3.3SetupToolsAsidefromtheESP-IDF,youalsoneedtoinstallthetoolsusedbyESP-IDF,suchasthecompiler,debugger,Pythonpackages,etc.ESP-IDFprovidesascriptnamed’install.sh’tohelpsetupthetoolsinonego.1cd ~/esp/esp-idf
2./install.sh
3.3.4SetupEnvironmentVariablesTheinstalledtoolsarenotyetaddedtothePATHenvironmentvariable.Tomakethetoolsusablefromthecommandline,someenvironmentvariablesmustbeset.ESP-IDFprovidesanotherscript’export.sh’whichdoesthat.IntheterminalwhereyouaregoingtouseESP-IDF,run:1. $HOME/esp/esp-idf/export.sh
Noweverythingisready,youcanbuildyourfirstprojectonESP32-S3-MINI-1orESP32-S3-MINI-1Umodule.3.4CreateYourFirstProject3.4.1StartaProjectNowyouarereadytoprepareyourapplicationforESP32-S3-MINI-1orESP32-S3-MINI-1Umodule.Youcanstartwithget-started/hello_worldprojectfromexamplesdirectoryinESP-IDF.Copyget-started/hello_worldto~/espdirectory:1cd ~/esp
2cp -r $IDF_PATH/examples/get-started/hello_world .
ThereisarangeofexampleprojectsintheexamplesdirectoryinESP-IDF.Youcancopyanyprojectinthesamewayaspresentedaboveandrunit.Itisalsopossibletobuildexamplesin-place,withoutcopyingthemfirst.3.4.2ConnectYourDeviceNowconnectyourmoduletothecomputerandcheckunderwhatserialportthemoduleisvisible.SerialportsinLinuxstartwith‘/dev/tty’intheirnames.Runthecommandbelowtwotimes,firstwiththeboardunplugged,thenwithpluggedin.Theportwhichappearsthesecondtimeistheoneyouneed:1ls /dev/tty*
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