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Questions and Answers
What is the processing speed of the Tensilica Xtensa LX6 processor in the ESP32?
What is the processing speed of the Tensilica Xtensa LX6 processor in the ESP32?
Which company developed the ESP32?
Which company developed the ESP32?
What is the operating frequency of the ESP32's CPU?
What is the operating frequency of the ESP32's CPU?
What is the voltage requirement for powering the ESP32?
What is the voltage requirement for powering the ESP32?
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What is the resolution of the ADC in the ESP32?
What is the resolution of the ADC in the ESP32?
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What is the process technology used to manufacture the ESP32?
What is the process technology used to manufacture the ESP32?
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What is the type of co-processor used in the ESP32 for ultra-low power?
What is the type of co-processor used in the ESP32 for ultra-low power?
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What is the type of technology integrated into the ESP32?
What is the type of technology integrated into the ESP32?
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What is the predecessor of the ESP32?
What is the predecessor of the ESP32?
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What is the maximum number of channels supported by the SPI interface in the ESP32?
What is the maximum number of channels supported by the SPI interface in the ESP32?
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What is the current consumption of the ESP32 in deep sleep mode?
What is the current consumption of the ESP32 in deep sleep mode?
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What is the maximum number of bits supported by the OTP in the ESP32?
What is the maximum number of bits supported by the OTP in the ESP32?
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Study Notes
ESP32 Overview
- ESP32 is a family of low-cost and low-power system on a chip (SoC) with integrated Wi-Fi and Bluetooth capabilities.
- Developed by Espressif Systems and manufactured by TSMC using a 40 nm process.
Processor and Performance
- Features a Tensilica Xtensa LX6 microprocessor with a single or dual core configuration, operating at 160 MHz or 240 MHz (with overclocking).
- Co-processor with ultra-low power (ULP) capabilities.
- 520 KiB SRAM memory.
Connectivity and Interfaces
- Wi-Fi capabilities: 802.11 b/g/n.
- Bluetooth capabilities: v4.2 BR/EDR and BLE.
- Peripherals interfaces include:
- 12-bit SAR ADC (up to 18 channels).
- 2 × 8-bit DACs.
- 10 × capacitive touch sensors (GPIOs).
- 4 × SPI.
- 2 × I²S interfaces.
- 2 × I²C interfaces.
- 3 × UART.
- SD/SDIO/CE-ATA/MMC/eMMC host controller.
- SDIO/SPI slave controller.
- Ethernet MAC interface with DMA and IEEE 1588 Precision Time Protocol support.
- CAN 2.0 bus.
- Infrared remote control (TX/RX, up to 8 channels).
- PWM motor controller.
- LED PWM (up to 16 channels).
- Hall effect sensor.
Security Features
- Supports standard IEEE 802.11 security features, including WFA, WPA/WPA2, and WAPI.
- Secure boot.
- Flash encryption.
- 1024-bit OTP, up to 768-bit for clients.
- Hardware-accelerated cryptography: AES, SHA-2, RSA, elliptic curve cryptography (ECC), and random number generator (RNG).
Power Management
- Internal low-dropout regulator.
- Individual power domain for RTC.
- 5μA current consumption in deep sleep mode.
- Wake-up by interrupt from GPIO, timer, ADC measurements, or capacitive touch sensor interrupt.
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Description
The ESP32 is a family of system on a chip microcontrollers developed by Espressif Systems. Learn about its technical specifications, processor, and application.
