ESP-32S Wi-Fi and Bluetooth combo chip


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ESP32 is a highly-integrated 2.4 GHz Wi-Fi and Bluetooth Low-energy combo chip with in-built antenna switches, RF balun, power amplifier, low noise receive amplifier, filters, and power management modules.

Make your next IOT project really big with a Dual-core Tensilica LX6 microprocessor with up to 240MHz clock frequency, 520kB internal SRAM, 4MB Flash memory and only 2.5 µA deep sleep current.

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Package includes: 1x esp32s module and 1x breakout board with headers (unsoldered)

Hybrid Wi-Fi & Bluetooth

ESP32 can perform as a complete standalone system or as a slave device to a host MCU to reduce communication stack overhead on the main application processor. ESP32 can interface with other systems to provide Wi-Fi and Bluetooth functionality through the SPI / SDIO or I2C / UART interfaces.

Ultra-Low Power Management

Engineered for mobile devices, wearable electronics and the Internet of Things (IoT) applications, ESP32 achieves ultra-low power consumption with a combination of several proprietary software. The state-of-the-art power saving features include fine resolution clock gating, power modes, and dynamic power scaling. 

Robust Design

ESP32 is capable of functioning reliably in industrial environments with an operating temperature range of -40°C to +125°C. Powered by advanced calibration circuitries, ESP32 can dynamically adjust itself to remove external circuit imperfections or adapt to changes in external conditions.


240 MHz dual core Tensilica LX6 microcontroller with 600 DMIPS
Integrated 520 KB SRAM
Integrated 802.11BGN HT40 Wi-Fi transceiver, baseband, stack and LWIP
Integrated dual mode Bluetooth (classic and BLE)
16 MByte flash
2.2V to 3.6V operating voltage
-40°C to +125°C operating temperature
On-board PCB antenna / IPEX connector for external antenna


Ultra-low noise analog amplifier
Hall sensor
10x capacitive touch interface
32 kHz crystal oscillator

32x GPIOs:

3 x UARTs, including hardware flow control
3 x SPI
2 x I2S
12 x ADC input channels
2 x DAC
2 x I2C
PWM/timer input/output available on every GPIO pin
OpenOCD debug interface with 32 kB TRAX buffer
SDIO master/slave 50 MHz
Supports external SPI flash up to 16 MB
SD-card interface support


WEP, WPA/WPA2 PSK/Enterprise
Hardware accelerated encryption: AES / SHA2 / Elliptical Curve Cryptography / RSA-4096


Supports sniffer, station, softAP and Wi-Fi direct modes
Max data rate of 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g,
and 11 Mbps@11b
Maximum transmit power of 19.5 dBm@11b, 16.5 dBm@11g, 15.5
Minimum receiver sensitivity of -98 dBm
135 Mbps UDP sustained throughput
2.5 μA deep sleep current

Checkout Espressif ESP32 website for detailled informations and software environment:


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