Product Features
Product Functions
Functional features: Developed based on the ESP8266 chip, the module integrates transparent transmission function, which is ready to use and supports serial AT command set. Users can access the network through the serial port, which is widely used in smart wearables, smart homes, home security, remote controls, automotive electronics, smart lighting, industrial Internet of Things and other fields.
Product Specifications
| 模块型号 Module model | ESP-12S | 描述 Describe |
| 封装形式 Packaging form | SMD16 | 贴片 Surface mount |
| 模组尺寸 | 24*16*3mm Module Size | +0.2mm |
| 认证资料 Certification documents | / | FCC/CE |
| SPI FLASH | 32Mbit | 默认 Default |
| 支持接口 Support interfaces | / | UART/GPIO/ADC/PWM |
| 可用IO口 Available IO ports | 9 | |
| 串口速率 Series Rate | 4608000bps | 支持300~4608000bps，默认115200bps Supports 300-460800bps, default 115200bps |
| 频谱范围 Spectrum range | 2.4GHZ | 2412~2484MHZ |
| 天线形式 Antenna form | 板载 Onboard | 板载PCB天线，传输距离约为100米 Onboard PCB antenna with a transmission distance of approximately 100 meters |
| 发射功率 Transmission power | / | 802.11b:16+2dBm;802.11g:16+2dBm;802.11n:16+2dBm; |
| 安全性 Security | / | WEP/WPA-PSK/WPA2-PSK |
| 供电范围 Power supply range | 3.3V | 3.0~3.6V，Current>500mA |
| 工作温度 Working temperature | 工业级 Industrial grade | -20℃~+85℃ |
| AT支持 AT support | 内置智能化处理 Built in intelligent processing | 可通过AT指令命令读取 Can be read through AT command |
The module supports 4Mbps high-speed transmission, which is faster in large data transmission applications such as WiFi printers, WiFi serial cameras, and WiFi high-speed data collection
| 序号 Serial number | Pin脚名称 Pin name | 功能说明 Function Description |
| 1 | RST | 复位 Reset |
| 2 | ADC | A/D转换结果。输入电平范围0~1V，取值范围:0~1024 A/D conversion result. Input level range: 0~1V, value range: 0~1024 |
| 3 | EN | 芯片使能端，高电平有效 Chip enable terminal, high level effective |
| 4 | IO16 | GPI016,接到RST管脚时可做deepsleep 唤醒 GPIO16, When receiving RST pin, perform deep sleep wake-up |
| 5 | IO14 | GPIO14,HSPI_CLK |
| 6 | IO12 | GPIO12,HSPI_MISO |
| 7 | IO13 | GPIO13,HSPI_MOSI;UART0_CTS |
| 8 | VCC | 3.3V供电(VDD);外部供电电源输出电流建议在500mA以上 3.3V power supply (VDD); It is recommended that the output current of the external power supply be above 500mA |
| 9 | GND | 接地 Grounding |
| 10 | IO15 | GPIO15,MTDO;HSPICS;UARTO_RTS |
| 11 | IO2 | GPIO2,UART1_TXD |
| 12 | IO0 | GPIO0,下载模式:外部拉低，运行模式:悬空或者外部拉高 GPIO0, Download Mode: External Pull Down, Run Mode: Suspended or External Pull Up |
| 13 | IO4 | GPIO4 |
| 14 | IO5 | GPIO5,IR_R |
| 15 | RXD | UART0-RXD;GPIO13 |
| 16 | TXD | UART0-TXD:GPIO1 |
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