ESP32­S2­WROVER ESP32­S2­WROVER­I - Espressif

1 esp32 S2 WROVERESP32 S2 wrover GHz Wi Fi ( b/g/n) moduleBuilt around esp32 S2 series of SoC (chip revision 0), Xtensa single core 32 bit LX7 micro processorFlash up to 16 MB, 2 MB PSRAM37 GPIOs, rich set of peripheralsOn board PCB antenna or external antenna connectorESP32 S2 WROVERESP32 S2 wrover SystemsCopyright (NRND)NotRecommendedForNewDesigns(NRND)1 Module Overview1 Module OverviewNote:Check the link or the QR code to make sure that you use the latest version of this document: and On Chip Memory esp32 -S2 embedded, Xtensa single-core32-bit LX7 microprocessor, up to 240 MHz 128 KB ROM 320 KB SRAM 16 KB SRAM in RTCWi Fi b/g/n Bit rate: up to 150 Mbps A-MPDU and A-MSDU aggregation s guard interval support Operating frequency: 2412~2484 MHzPeripherals GPIO, SPI, LCD, UART, I2C, I2S, Camerainterface, IR, pulse counter, LED PWM, TWAI (compatible with ISO 11898-1, CANS pecification ), full-speed USB OTG, ADC,DAC, touch sensor, temperature sensorIntegrated Components on Module 40 MHz crystal oscillator 4 MB SPI flash 2 MB PSRAMA ntenna Options On-board PCB antenna ( esp32 -S2- wrover ) External antenna via a connector( esp32 -S2- wrover -I)Operating Conditions Operating voltage/Power supply: ~ V Operating ambient temperature: 40~85 CCertification RF certification.

2 See certificates forESP32-S2-WROVERandESP32-S2- wrover -I Green certification: RoHS/REACHTest HTOL/HTSL/uHAST/ and esp32 -S2- wrover -I are two powerful, generic Wi-Fi MCU modules that have a richset of peripherals. They are an ideal choice for a wide variety of application scenarios related to Internet of Things(IoT), such as embedded systems, smart home, wearable electronics, comes with a PCB antenna (ANT). esp32 -S2- wrover -I comes with a connector for anexternal antenna (CONN). Espressif Systems2 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)1 Module OverviewThey both feature a 4 MB external SPI flash and an additional 2 MB SPI Pseudo static RAM (PSRAM).

3 Theinformation in this datasheet is applicable to both ordering information for the two modules is as follows:Table 1: Ordering InformationModuleChip EmbeddedFlashPSRAMM odule Dimensions (mm) esp32 -S2- wrover (ANT) esp32 -S24 MB2 (CONN)1 These modules can be shipped with different flash the core of the modules is esp32 -S2 *, an Xtensa 32-bit LX7 CPU that operates at up to 240 MHz. You canpower off the CPU and make use of the low-power co-processor to constantly monitor the peripherals forchanges or crossing of integrates a rich set of peripherals including SPI, I2S, UART, I2C, LED PWM, TWAI controller, ADC,DAC, touch sensor, temperature sensor, as well as up to 43 GPIOs.

4 It also includes a full-speed USB OTG (OTG)interface to enable USB :* For more information on esp32 -S2, please refer toESP32-S2 Series Generic Low-power IoT Sensor Hub Generic Low-power IoT Data Loggers Cameras for Video Streaming Over-the-top (OTT) Devices USB Devices Speech Recognition Image Recognition mesh Network Home Automation Smart Home Control Panel Smart Building Industrial Automation Smart Agriculture Audio Applications Health Care Applications Wi-Fi-enabled Toys Wearable Electronics Retail & Catering Applications Smart POS MachinesEspressif Systems3 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)ContentsContents1 Module Applications32 Block Diagram73 Pin Pin Pin Strapping Pins104 Electrical Absolute Maximum Recommended Operating DC Characteristics ( V, 25 C) Current Consumption Wi-Fi RF Wi-Fi RF Transmitter Receiver Characteristics155 Module Schematics176 Peripheral Schematics197 Physical Dimensions and PCB Land Physical Recommended PCB Land Dimensions of External Antenna Connector228 Product Storage Electrostatic Discharge (ESD)

5 Reflow Profile239 MAC Addresses and eFuse2410 Related Documentation and Resources25 Revision History26 Espressif Systems4 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)List of TablesList of Tables1 Ordering Information32 Pin Definitions93 Strapping Pins104 Absolute Maximum Ratings125 Recommended Operating Conditions126 DC Characteristics ( V, 25 C)127 Current Consumption Depending on RF Modes138 Current Consumption in Modem-sleep Mode139 Current Consumption in Low-Power Modes1410 Wi-Fi RF Standards1411 TX Power Characteristics1512 RX Sensitivity1513 Maximum RX Level1614 Adjacent Channel Rejection16 Espressif Systems5 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)List of FiguresList of Figures1 esp32 -S2- wrover Block Diagram72 esp32 -S2- wrover -I Block Diagram73 Pin Layout (Top View)

6 84 esp32 -S2- wrover Schematics175 esp32 -S2- wrover -I Schematics186 Peripheral Schematics197 Physical Dimensions208 Recommended PCB Land Pattern219 Dimensions of External Antenna Connector2210 Reflow Profile23 Espressif Systems6 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)2 Block Diagram2 Block DiagramESP32-S2RF Matching40 MHzCrystal3V3 esp32 -S2-WROVERENGPIOsAntennaSPI FLASHSPICS0 SPICLKSPIDISPIDOSPIWPSPIHDVDD_SPISPI PSRAMSPICLKSPICS1 VDD_SPISIO0 SIO1 SIO2 SIO3 Figure 1: esp32 S2 wrover Block DiagramSPI FLASHESP32-S2RF Matching40 MHzCrystalSPICS0 SPICLKSPIDISPIDOSPIWPSPIHD3V3 VDD_SPIESP32-S2- wrover -IENGPIOsAntennaSP I PSRAMSPICLKSPICS1 VDD_SPISIO0 SIO1 SIO2 SIO3 Figure 2: esp32 S2 wrover I Block DiagramEspressif Systems7 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)3 Pin Definitions3 Pin LayoutThe pin diagram below shows the approximate location of pins on the module.

7 For the actual diagram drawn toscale, please refer to Zone7IO48IO59IO610IO711IO812IO913IO1014I O1115IO1216IO1342 GND41EN40IO4639IO4538 RXD037 TXD036IO4235IO4134IO4033IO3932IO3831IO37 30IO3629IO3528IO3427IO33 Pin 43 GNDGNDGNDGNDGNDGNDGNDGNDGND17IO1418IO151 9IO1620IO1721IO1822IO1923IO2024IO2125IO2 626 GNDF igure 3: Pin Layout (Top View) Espressif Systems8 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)3 Pin DescriptionThe module has 42 pins. See pin definitions in peripheral pin configurations, please refer toESP32-S2 Series 2: Pin supplyIO03I/O/TRTC_GPIO0, GPIO0IO14I/O/TRTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0IO25I/O/TRTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1IO36I/O/TRTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2IO47I/O/TRTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3IO58I/O/TRTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4IO69I/O/TRTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5IO710I/O/TRTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6IO811I/O/TRTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7IO912I/O/TRTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHDIO1013I/O/TRTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4IO1114I/O/TRTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5IO1215I/O/TRTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6IO1316I/O/TRTC_GPIO13, GPIO13.

8 TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7IO1417I/O/TRTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQSIO1518I/O/TRTC_GPIO15, GPIO15, U0 RTS, ADC2_CH4, XTAL_32K_PIO1619I/O/TRTC_GPIO16, GPIO16, U0 CTS, ADC2_CH5, XTAL_32K_NIO1720I/O/TRTC_GPIO17, GPIO17, U1 TXD, ADC2_CH6, DAC_1IO1821I/O/TRTC_GPIO18, GPIO18, U1 RXD, ADC2_CH7, DAC_2, CLK_OUT3IO1922I/O/TRTC_GPIO19, GPIO19, U1 RTS, ADC2_CH8, CLK_OUT2, USB_D-IO2023I/O/TRTC_GPIO20, GPIO20, U1 CTS, ADC2_CH9, CLK_OUT1, USB_D+IO2124I/O/TRTC_GPIO21, GPIO21IO2625I/O/TSPICS1, GPIO262 GND26 PGroundIO3327I/O/TSPIIO4, GPIO33, FSPIHDIO3428I/O/TSPIIO5, GPIO34, FSPICS0IO3529I/O/TSPIIO6, GPIO35, FSPIDIO3630I/O/TSPIIO7, GPIO36, FSPICLKIO3731I/O/TSPIDQS, GPIO37, FSPIQIO3832I/O/TGPIO38, FSPIWPIO3933I/O/TMTCK, GPIO39, CLK_OUT3IO4034I/O/TMTDO, GPIO40, CLK_OUT2IO4135I/O/TMTDI, GPIO41, CLK_OUT1IO4236I/O/TMTMS, GPIO42 TXD037I/O/TU0 TXD, GPIO43, CLK_OUT1 Cont d on next pageEspressif Systems9 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)3 Pin DefinitionsTable 2 cont d from previous , GPIO44, CLK_OUT2IO4539I/O/TGPIO45IO4640 IGPIO46EN41 IHigh: on, enables the : off, the chip powers : Do not leave the EN pin : power supply; I: input; O: output.

9 T: high default, IO26 is connected to the CS pin of the PSRAM and cannot be used for other PinsNote:The content below is excerpted from Section Strapping Pins inESP32-S2 Series datasheet . For the strapping pin map-ping between the chip and modules, please refer to Chapter5 Module has three strapping pins: GPIO0 GPIO45 GPIO46 Software can read the values of corresponding bits from register GPIO_STRAPPING .During the chip s system reset (power-on-reset, RTC watchdog reset, brownout reset, analog super watchdogreset, and crystal clock glitch detection reset), the latches of the strapping pins sample the voltage level asstrapping bits of 0 or 1 , and hold these bits until the chip is powered down or shut , GPIO45 and GPIO46 are connected to the chip s internal weak pull-up/pull-down during the chip , if they are unconnected or the connected external circuit is high-impedance, the internal weakpull-up/pull-down will determine the default input level of these strapping change the strapping bit values, users can apply the external pull-down/pull-up resistances, or use the hostMCU s GPIOs to control the voltage level of these pins when powering on reset.

10 The strapping pins work as normal-function to Table3for a detailed boot-mode configuration of the strapping 3: Strapping PinsVDD_SPI Voltage1 VGPIO45 Pull-down01 Booting Mode3 PinDefaultSPI BootDownload BootGPIO0 Pull-up10 Espressif Systems10 Submit Documentation FeedbackESP32-S2- wrover & wrover -I datasheet (NRND)3 Pin DefinitionsGPIO46 Pull-downDon t-care0 Enabling/Disabling ROM Messages Print During Booting4 5 PinDefaultEnabledDisabledGPIO46 Pull-downSee note 5 See note 5 functionality of strapping pin GPIO45 to select VDD_SPI voltage may be disabled by setting VDD_SPI_FORCEeFuse to 1. In such a case the voltage is