Le Xin's latest ESP32-S2 Beta chip! About ULP Coprocessor: Unlike the current ESP32, it has many restrictions on the coprocessor to perform / use / see, and the new processor on ESP32-S2 is more like a suitable CPU. It has enhanced functional functions, but specific details have not been provided. In addition to the video, there is also the specifications of the currently released ESP32-S2.
ESP32-S2 is a truly safe, highly integrated, low power, 2.4 GHz Wi-Fi microcontroller SOC, supporting Wi-Fi HT40 and has 43 GPIOs. Based on the Xtensa® single-core 32-bit LX7 processor, its clock frequency is up to 240 MHz.
ESP32-S2 has the most advanced power management and RF performance, IO functions, and security functions, ideal for various Internet of Things or connection-based applications, including smart home and wearable devices. By integrated 240 MHzXTENSA® kernel, ESP32-S2 is sufficient to construct the most demanding connection devices without external MCUs.
By using the Espressif Mature Production Ready Software Development Framework (ESP32-S2, the ESP32-S2 achieves a balance of performance and cost, thereby bringing faster and safer Internet access solutions to the market.
Characteristic
CPU and memory
Xtensa® single-core 32-bit LX7 microcontroller
7-stage pipeline
Clock frequency up to 240 MHz
Ultra low power consumption processor
320 KB SRAM, 128 KB ROM, 16 KB RTC Memory
External SPIRAM (128 MB) Support
Up to 1 GB of external flash memory support
Separate instructions and data caches
Connection
Wi-Fi 802.11 B / g / N
1x1 send and receive
HT40 supports data rate up to 150 Mbps
Support TCP / IP network, ESP-MESH network, TLS 1.0, 1.1 and 1.2 and other network protocols via Wi-Fi
Support flight time (TOF) measurement using normal Wi-Fi packets
IO peripheral equipment
43 programmable GPIO
14 capacitive touch sensing IO
Standard peripherals including SPI, I2C, I2S, UART, ADC / DAC and PWM
LCD (8-bit parallel RGB / 8080/6800) interface also supports 16/24 bit parallel
The camera interface supports 8-bit or 16-bit DVP image sensor, the clock frequency is as high as 40 MHz
Full-speed USB OTG support
Safe
RSA-3072-based trusted application starts
Based on AES256-XTS flash encryption for protecting static sensitive data
4096-bit EFUSE memory available for 2048
Digital signature peripherals for secure storage private keys and generating RSA signed
Power consumption
ESP32-S2 supports power control of fine resolution by selecting a clock frequency, duty cycle, Wi-Fi operating mode, and individual power control of internal components.
When Wi-Fi is enabled, the chip automatically turns on or off only when needed, thereby reducing the overall power consumption of the system.
The ULP coordinator, the idle mode is less than 5 UA, and the duty cycle is 24 UA. Improved Wi-Fi connection and MCU idle mode power consumption.
Software
ESP32-S2 supports the Software Development Framework (ESP-IDF) of Espressif, which is a mature production ready platform that has been used by millions of devices in the field. The usability of general cloud connecting agents and common product functions is shortened.
Application
ESP32-S2 provides a general Wi-Fi connection solution for a variety of applications from consumers to industrial use. In addition, computing power and memory scalability also make it a suitable solution for simple ML-ON-EDGE applications.
Although it can support a large number of use, the primary target application is shown below:
Smart home connection
From simple solutions such as light bulbs, smart door locks, smart sockets to white home appliances and kitchen utensils, top (OTT) equipment and safety cameras, etc.
Support for Mesh networks, which can be applied to large commercial lighting and smart home network solutions.
Allow efficient connection to various sensors, suitable for different smart home scenes.
Battery power supply equipment
Connected Wi-Fi sensor supports Wi-Fi toys, wearable devices and healthcare equipment
Small 7 mm × 7 mm QFN package, very suitable for wearable equipment
In sleep mode, low power consumption below 5 UA can be used for battery power supply equipment or long standby time equipment
QSPI / OPI supports multiple flash / SRAM chips, flexible configuration NVM and volatile data storage
Industrial automation
Industrial automation includes wireless control and robotics, intelligent lighting, HVAC control, ensuring high quality technology development and long life cycle of products.
With its high radio frequency performance and security features, it can meet the stringent requirements of electronic control and the reliability and efficiency of high standards.
Retail and catering application
POS machine and service robot
Advanced security features protect the sensitive data on the chip and flash devices
Proficiency
ESP32-S2 has 14 high sensitivity touch sensors and LCD interfaces for low-cost HMI devices, such as POS
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