Data Sheet

ManualsBrandsSparkfun ManualsArduinoSparkfun WRL-14689 Wi-Fi shield

Revision History

Date Version Release notes

2018.10 V2.7

Added ”Cumulative IO output current” entry to Table 4: Absolute Maximum Ratings;

Added more parameters to Table 6: DC Characteristics.

2018.08 V2.6

• Added reliability test items the module has passed in Table 1: ESP32-

WROOM-32 Specifications, and removed software-specific information;

• Updated section 3.4: RTC and Low-Power Management;

• Changed the module’s dimensions from (18±0.2) mm x (25.5 ±0.2) mm x

(3.1±0.15) mm to (18.00±0.10) mm x (25.50±0.10) mm x (3.10±0.10) mm;

• Updated Figure 8: Physical Dimensions;

• Updated Table 7: Wi-Fi Radio.

2018.06 V2.5

• Changed the module name to ESP32-WROOM-32;

• Deleted Temperature Sensor in Table 1: ESP32-WROOM-32 Specifications;

• Updated Chapter 3: Functional Description;

• Added Chapter 8: Recommended PCB Land Pattern;

Changes to electrical characteristics:

• Updated Table 4: Absolute Maximum Ratings;

• Added Table 5: Recommended Operating Conditions;

• Added Table 6: DC Characteristics;

• Updated the values of ”Gain control step”, ”Adjacent channel transmit power”

in Table 9: Transmitter Characteristics - BLE.

2018.03 V2.4 Updated Table 1 in Chapter 1.

2018.01 V2.3

Deleted information on LNA pre-amplifier;

Updated section 3.4 RTC and Low-Power Management;

Added reset circuit in Chapter 7 and a note to it.

2017.10 V2.2

Updated the description of the chip’s system reset in Section 2.3 Strapping Pins;

Deleted ”Association sleep pattern” in Table “Power Consumption by Power Modes”

and added notes to Active sleep and Modem-sleep;

Updated the note to Figure 4 Peripheral Schematics;

Added discharge circuit for VDD33 rail in Chapter 7 and a note to it.

2017.09 V2.1

Updated operating voltage/power supply range updated to 2.7 ~ 3.6V;

Updated Chapter 7.

2017.08 V2.0

Changed the sensitivity of NZIF receiver to -97 dBm in Table 1;

Updated the dimensions of the module;

Updated Table “Power Consumption by Power Modes” Power Consumption by

Power Modes, and added two notes to it;

Updated Table 4, 7, 8, 9;

Added Chapter 8;

Added the link to certification download.

2017.06 V1.9

Added a note to Section 2.1 Pin Layout;

Updated Section 3.3 Crystal Oscillators;

Updated Figure 3 ESP-WROOM-32 Schematics;

Added Documentation Change Notification.

Espressif Systems 19 ESP32-WROOM-32 Datasheet V2.7