آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

ESP32 is a single-chip solution integrating 2.4 GHz Wi-Fi and dual-mode Bluetooth, fabricated on TSMC's low-power 40 nm process. It delivers ultra-high RF performance, stability, versatility, and reliability, along with ultra-low power consumption to meet diverse power requirements across a wide range of application scenarios.

Features

• Wi-Fi:
  • IEEE 802.11b/g/n protocol support
  • 802.11n (2.4 GHz) speeds up to 150 Mbps
  • Wireless Multimedia (WMM)
  • Frame aggregation (TX/RX A-MPDU, RX A-MSDU)
  • Immediate Block ACK
  • Defragmentation
  • Beacon auto-monitoring (hardware TSF)
  • 4× virtual Wi-Fi interfaces
  • Simultaneous Infrastructure BSS Station mode / SoftAP mode / Promiscuous mode (note: when ESP32 scans in Station mode, the SoftAP channel changes accordingly)
  • Antenna diversity
• Bluetooth:
  • Bluetooth v4.2 full standard, including BR/EDR and Bluetooth LE
  • Standard Class-1, Class-2, and Class-3 support without external power amplifier
  • Enhanced Power Control
  • Output power up to +9 dBm
  • NZIF receiver with –94 dBm BLE receive sensitivity
  • Adaptive Frequency Hopping (AFH)
  • Standard HCI over SDIO/SPI/UART interfaces
  • High-speed UART HCI up to 4 Mbps
  • Bluetooth 4.2 BR/EDR and Bluetooth LE dual-mode controller
  • Synchronous Connection-Oriented / Extended Synchronous Connection-Oriented (SCO/eSCO)
  • CVSD and SBC audio codec algorithms
  • Bluetooth Piconet and Scatternet
  • Multi-device connection for both BR/EDR and Bluetooth LE
  • Simultaneous advertising and scanning
• CPU and Memory:
  • Xtensa 32-bit LX6 single/dual-core processor
  • CoreMark scores:
    • Single-core, 240 MHz: 504.85 CoreMark; 2.10 CoreMark/MHz
    • Dual-core, 240 MHz: 994.26 CoreMark; 4.14 CoreMark/MHz
  • 448 KB ROM
  • 520 KB SRAM
  • 16 KB RTC SRAM
  • QSPI supporting multiple flash/SRAM
• Clocks and Timers:
  • Internal 8 MHz oscillator with self-calibration
  • Internal RC oscillator with self-calibration
  • External 2 MHz to 60 MHz main crystal support (only 40 MHz crystal supported when using Wi-Fi/Bluetooth)
  • External 32 kHz crystal for RTC with self-calibration
  • 2 timer groups, each with 2× 64-bit general-purpose timers and 1× main system watchdog
  • 1 RTC timer
  • RTC watchdog
• Advanced Peripheral Interfaces:
  • 34 GPIO pins:
    • 5 strapping pins
    • 6 input-only pins
    • 6 pins for on-package flash/PSRAM connection (ESP32-D0WDR2-V3, ESP32-U4WDH)
  • 12-bit SAR ADC, up to 18 channels
  • 2× 8-bit DAC
  • 10 touch sensors
  • 4× SPI
  • 2× I2S
  • 2× I2C
  • 3× UART
  • 1× Host SD/eMMC/SDIO
  • 1× Slave SDIO/SPI
  • Ethernet MAC interface with dedicated DMA, IEEE 1588 support
  • TWAI, compatible with ISO 11898-1 (CAN Specification 2.0)
  • RMT (TX/RX)
  • Motor PWM
  • LED PWM, up to 16 channels
• Power Management:
  • Fine-grained power control via clock frequency selection, duty cycling, Wi-Fi operating mode, and individual peripheral power control
  • Five power modes for typical scenarios: Active, Modem-sleep, Light-sleep, Deep-sleep, Hibernation
  • Deep-sleep current as low as 10 µA
  • Ultra-low-power coprocessor (ULP)
  • RTC memory retention in Deep-sleep mode
• Security:
  • Secure Boot
  • Flash encryption with 1024-bit OTP, up to 768 bits user-accessible
  • Hardware cryptographic accelerators:
    • AES
    • Hash (SHA-2)
    • RSA
    • ECC
    • Random Number Generator (RNG)

Applications

• Smart Home
• Industrial Automation
• Healthcare
• Consumer Electronics
• Smart Agriculture
• POS Terminals
• Service Robots
• Audio Devices
• General-purpose Low-power IoT Sensor Hub
• General-purpose Low-power IoT Data Logger
• Camera Video Streaming
• Speech Recognition
• Image Recognition
• SDIO Wi-Fi + Bluetooth NIC
• Touch and Proximity Sensing