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Overview :
ESP32-S is an ultra-small multifunctional RF module independently designed and developed by Ai-Thinker.
It uses dual-core ESP32 as the main control, and the module is matched with the PCB on-board antenna and the IPEX antenna to be used according to the scene requirements.
It uses ESP32 chip, integrated Wi-Fi, traditional bluetooth and bluetooth low energy (BLE Beacon), with 2 high-performance 32-bit LX6 CPU, 7-stage pipeline architecture, main frequency adjustment range 80MHz to 240MHz, on-chip Sensor: Hall sensor, temperature sensor, etc.
It is fully compliant with WiFi 802.11b/g/n/e/i and Bluetooth 4.2 standards. It can be used as a master mode to build a stand-alone network controller, or it can be used as a slave to other host MCUs to add networking capabilities to existing devices.
Specification :
| Model | ESP32-S |
| CPU | Xtensa 32-bit LX6 Dual Core Processor |
| ROM | 520 KByte SRAM RTC 16 KByte SRAM |
| Package | SMD-38 |
| Size | 25.5*18*3(±0.2)mm |
| SPI Flash | 32Mbit default |
| Communication Interface | SD / UART / SPI / SDIO / I2C / PWM / I2S / IR / GPIO / ADC / DAC / Capacitance Touch Sensors |
| GPIO | 22 |
| Audio Frequency | SVCD / SBC |
| Series Rate | 115200 bps default |
| Frequency Band | 2.4Ghz |
| Onboard Clock | 40 MHz Crystal |
| Antenna Type | Onboard PCB antenna / IPEX pedestal |
| WiFi 802.11 | b/g/n/d/e/i/k/r (802.11n, Speeds up to 150Mbps) |
| Bluetooth | V4.2 BR/EDR and BLE standard, NZIF receiver with -98dbm sensitivity, Class-1,Class-2 and Class-3 transmitter |
| Supply Voltage | 2.7-3.6V, typical 3.3V |
| Current | Operating Current: Average 80mA Supply Current: 500mA Min |
