The esp32 chip is a WiFi chip launched by Espressif Information Technology. It has a 40nm process, a dual-core 32-bit MCU, a 2.4GHz dual-mode WiFi and Bluetooth chip, and a main frequency of up to 230MHz. The ESP32 chip uses the Tensilica Xtensa LX6 microprocessor, including dual-core and single-core versions, built-in antenna switches, RF radio frequency modules, power amplifiers, low-noise receive amplifiers, filters and power management modules.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What is the esp32 chip?
ESP32 is another integrated WiFi launched by my country's Espressif Company (ESPRESSIF) after the ESP8266 chip functional microcontroller.
esp32 is a WiFi chip launched by Espressif Information Technology. It has a 40nm process, a dual-core 32-bit MCU, a 2.4GHz dual-mode WiFi and Bluetooth chip, and a main frequency of up to 230MHz.
ESP32 chip uses Tensilica Xtensa LX6 microprocessor, including dual-core and single-core versions, built-in antenna switch, RF radio frequency module, power amplifier, low-noise receiving amplifier, filter and power management module.
ESP32 chip or module has the following features:
Processor: Tensilica LX6 dual-core processor (One core handles high-speed connections; one core for independent application development)
Main frequency: 32-bit dual-core processor, the normal working speed of the CPU is 80 MHz, up to 240 MHz
SRAM: 520KB, supports up to 8 MB off-chip SPI SRAM
Flash: supports up to 16 MB off-chip SPI Flash
WiFi protocol: supports 802.11 b/g/n/d/e/i/k/r and other protocols, with speed up to 150 Mbps
Frequency range: 2.4~2.5 GHz
Bluetooth protocol: supports Bluetooth v4.2 complete standard, including traditional Bluetooth (BR/EDR) and Bluetooth low energy (BLE)
At the same time, it also has a wealth of peripheral interfaces: such as GPIO, ADC, DAC, SPI, I²C, I²S, UART and many other common interfaces
Products of the ESP32 series
The product models of the ESP32 series include ESP32 S2 (single-core 2.4G wifi), ESP32 S3 (dual-core 2.4G wifi Bluetooth 5), ESP32 C2 (single-core 2.4G wifi Bluetooth 5), ESP32 C3 (single-core 2.4G wifi Bluetooth 5) and traditional ESP32 modules.
ESP32-S2 series
- ##Integrated ESP32-S2 chip, Xtensa® 32-bit LX7 single Core processor with clock frequency up to 240 MHz
- Supports multiple low-power working states: fine clock gating, dynamic voltage clock frequency adjustment
- Security mechanism: eFuse storage, secure boot, Flash encryption, digital signature, supports AES, SHA and RSA algorithms
- Peripherals include 43 GPIO ports and 1 full-speed USB OTG interface , SPI, I2S, UART, I2C, LED PWM, LCD interface, Camera interface, ADC, DAC, touch sensor
- can be connected to a variety of network cloud platforms and has universal product features. Greatly shorten product construction and time to market
- Passed RF certification and software protocol certification
ESP32-S3 Series
- Xtensa® 32-bit LX7 dual-core processor, clocked up to 240 MHz
- Built-in 512 KB SRAM , 384 KB ROM storage space, and supports multiple external SPI, Dual SPI, Quad SPI, Octal SPI, QPI, OPI flash and off-chip RAM
- Additional addition for accelerating neural networks Vector instructions for calculation and signal processing
- 45 programmable GPIO, supporting common peripheral interfaces such as SPI, I2S, I2C, PWM, RMT, ADC, DAC , UART, SD/MMC host controller and TWAITM controller, etc.
- Flash encryption based on AES-XTS algorithm and secure boot based on RSA algorithm, digital signature and HMAC module, "World "Controller (World Controller)" module
- passed RF certification and software protocol certification
- The following is a comparison of ESP32S3 series chips, SiP flash and SiP PSRAM refers to the flash and PSRAM packaged inside the chip. Octal SPI occupies 5 more GPIOs than Quad SPI, that is, GPIO33 ∼ GPIO37.
ESP32-C2 Series
- RISC-V- 32-bit unit core processor, clocked at up to 120 MHz
- Industry-leading low power performance and radio frequency performance
- Built-in 272 KB SRAM (including 16 KB dedicated to cache), 576 KB ROM storage space
- 14 programmable GPIOs, supporting common peripheral interfaces such as SPI, UART, I2C, LED PWM and DMA
- Passed RF certification and software protocol certification
ESP32-C3 series
- ##Integrated ESP32-C3 chip, RISC-V 32 Single-core processor with clock frequency up to 160 MHz
- Industry-leading low power performance and RF performance
- Built-in 400 KB SRAM, 384 KB ROM storage space, and supports multiple external SPI, Dual SPI, Quad SPI, QPI flash
- Perfect security mechanism: secure boot based on RSA-3072 algorithm, based on AES- 128-XTS algorithm flash encryption, innovative digital signature and HMAC modules, hardware accelerator supporting encryption algorithms
- Rich communication interfaces and GPIO pins can support a variety of scenarios and complex The application
- passed RF certification and software protocol certification
ESP32 series
- Integrated ESP32 series chips, two or one Xtensa® 32-bit LX6 processor that can be controlled independently, clock frequency is adjustable from 80 MHz to 240 MHz
- 19.5 dBm antenna end output power to ensure good coverage
- Legacy Bluetooth supports L2CAP, SDP, GAP, SMP, AVDTP, AVCTP, A2DP (SNK) and AVRCP (CT) protocols
- Bluetooth LE supports L2CAP, GAP, GATT, SMP, and BluFi on top of GATT, SPP-like protocols, etc.
- Bluetooth low energy connects to smartphones and sends low-power beacons for easy detection
- The sleep current is less than 5 μA, suitable for battery-powered wearable electronic devices
- Peripherals include capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C
- RF certified and Software protocol certification
Extended knowledge:
Does esp32 support qt
support. The esp32 chip supports qt, because it not only has a dual-core processor, but also supports BluetoothLE and qt. esp32 is a general-purpose WiFi plus BT plus BLEMCU module. It is powerful and versatile and can be used in low-power sensor networks.
Can esp32 connect to the database?
Can esp32 connect to the database. The basic process of connecting ESP32 as a TCP client to the server is to connect wifi to st, create a new socket, and connect to tcpserver. ESP32 is a WIFI chip launched by Espressif Information Technology. ESP32 integrates antenna switches, RF balun, power amplifiers, low-noise amplifiers, filters and power management modules. The entire solution occupies the least printed circuit board area. It uses TSMC low-power 40nm technology and has the best power consumption performance and RF performance. Excellent, safe and reliable, easy to expand to various applications.
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