ESP32-WROOM-32E
User Manual
Version 0.1
Espressif Systems
Copyright © 2019
www.espressif.com
Page 1: ...ESP32 WROOM 32E User Manual Version 0 1 Espressif Systems Copyright 2019 www espressif com...
Page 2: ...without notice THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER INCLUDING ANY WARRANTY OF MERCHANTABIL ITY NON INFRINGEMENT FITNESS FOR ANY PARTICULAR PURPOSE OR ANY WARRANTY OTHERWISE AR...
Page 3: ...CPU clock frequency is adjustable from 80 MHz to 240 MHz The user may also power off the CPU and make use of the low power co processor to constantly monitor the peripherals for changes or crossing o...
Page 4: ...SPI SDIO I2C LED PWM Motor PWM Module interfaces I2 S IR pulse counter GPIO capacitive touch sensor ADC DAC On chip sensor Hall sensor Integrated crystal 40 MHz crystal Integrated SPI flash 4 MB Hard...
Page 5: ...2 Pin Definitions 2 Pin Definitions 2 1 Pin Layout Figure 1 Pin Layout of ESP32 WROOM 32E Top View Espressif Systems 3 ESP32 WROOM 32E Datasheet...
Page 6: ...GPIO27 ADC2_CH7 TOUCH7 RTC_GPIO17 EMAC_RX_DV IO14 13 I O GPIO14 ADC2_CH6 TOUCH6 RTC_GPIO16 MTMS HSPICLK HS2_CLK SD_CLK EMAC_TXD2 IO12 14 I O GPIO12 ADC2_CH5 TOUCH5 RTC_GPIO15 MTDI HSPIQ HS2_DATA2 SD_D...
Page 7: ...apping bits of 0 or 1 and hold these bits until the chip is powered down or shut down The strapping bits configure the device s boot mode the operating voltage of VDD_SDIO and other initial system set...
Page 8: ...utput by VDD_SDIO Espressif Systems 6 ESP32 WROOM 32E User Manual Booting Mode Pin Default SPI Boot Download Boot GPIO0 Pull up 1 0 GPIO2 Pull down Don t care 0 Enabling Disabling Debugging Log Print...
Page 9: ...PI flash and SRAM chips More details can be found in Chapter SPI in the ESP32 Technical Reference Manual ESP32 also supports hardware encryption decryption based on AES to pro tect developers programs...
Page 10: ...of advanced power management technologies ESP32 can switch between different power modes For details on ESP32 s power consumption in different power modes please refer to section RTC and Low Power Ma...
Page 11: ...ripherals and Sensors in ESP32 User Manual Note External connections can be made to any GPIO except for GPIOs in the range 6 11 16 or 17 GPIOs 6 11 are connected to the module s integrated SPI flash F...
Page 12: ...perating Conditions Table 6 Recommended Operating Conditions Symbol Parameter Min Typical Max Unit VDD33 Power supply voltage 3 0 3 3 3 6 V I V DD Current delivered by external power supply 0 5 A T Op...
Page 13: ...es 3 Pins occupied by flash and or PSRAM in the VDD_SDIO power domain were excluded from the test 5 4 Wi Fi Radio Table 8 Wi Fi Radio Characteristics Parameter Condition Min Typical Max Unit Operating...
Page 14: ...45 dB 30 MHz 2000 MHz 10 dBm Out of band blocking performance 2000 MHz 2400 MHz 27 dBm 2500 MHz 3000 MHz 27 dBm 3000 MHz 12 5 GHz 10 dBm Intermodulation 36 dBm 5 5 2 Transmitter Table 10 Transmitter...
Page 15: ...ne 1 3 s 100 50 25 Time sec 0 50 100 150 200 250 0 Ramp up zone Temp 150 Time 60 90s Ramp up rate 1 3 s Preheating zone Temp 150 200 Time 60 120s Ramp up rate 0 3 0 8 s Reflow zone Temp 217 7LPH60 90s...
Page 16: ...6 AntennaSpecifications 6 Antenna Specifications 6 1 1 PCB Antenna Model ESP ANT B Assembly PTH Gain 14 ESP32 WROOM 32E UserManual Espressif Systems 3 40...
Page 17: ...6 AntennaSpecifications ONFID E Dimensions Pattern Plots 15 ESP32 WROOM 32E UserManual Espressif Systems...
Page 18: ...6 AntennaSpecifications ONFID E 16 ESP32 WROOM 32E UserManual Espressif Systems...
Page 19: ...C The operational ambient temperature of the module is 30 to 85 degree C Only the embedded PCB antenna is allowed Any other external antenna is prohibited 3 Limited module procedures N A 4 Trace anten...
Page 20: ...ng additional emissions b The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters digital circuitry or due to physical properties of the h...
Page 21: ...ctive scanning In these cases this would need to enable activity on the communication BUS i e PCIe SDIO USB to ensure the unintentional radiator circuitry is enabled Testing laboratories may need to a...
