ESP-12E ESP8266 WiFi Module
ESP-12E overview
The ESP-12E is an ESP8266 WiFi Module. Main ratings: Controller ESP8266EX Serial WiFi 32-bit Tensilica L106 SoC; Working voltage 3.3V; Supported voltage 3.0 - 3.6V; Working current 71-80mA. This page brings together the ESP-12E pinout and key specifications, with the full datasheet PDF to preview below or download.
ESP-12E ESP8266 WiFi module is one of the most popular IoT SoC (System on Chip) module developed by the Espressif Systems. The core of ESP-12E is the ESP8266EX dual core processors, which is a high integration wireless SoC. It features ability to embed Wi-Fi capabilities to systems or to function as a standalone application. It is a low cost solution for developing IoT applications. The module supports standard IEEE802.11 b/g/n agreement, a complete TCP/IP protocol stack. Users can add the ESP-12E module to an existing device networking or build a separate IoT network controller.
ESP-12E WiFi module can handle all the necessary overhead for communicating with your network. Such as TCP/IP stack and communicating with your 802.11 networks. The module also supports APSD for VoIP applications and Bluetooth co-existence interfaces. Using a self-calibrated RF allows it to work under all operating conditions and requires no external RF parts.
Key specifications
Datasheet
ESP-12E features
- 802.11 b/g/n
- Integrated low-power 32-bit MCU
- Integrated 10-bit ADC
- Integrated TCP/IP protocol stack
- Integrated TR switch, balun, LNA, power amplifier, and matching network
- Integrated PLL, regulators, and power management units
- Supports antenna diversity
- Wi-Fi 2.4 GHz, support WPA/WPA2
- Support STA/AP/STA+AP operation modes
- Support Smart Link Function for both Android and iOS devices
- SDIO 2.0, (H) SPI, UART, I2C, I2S, IRDA, PWM, GPIO
- STBC, 1x1 MIMO, 2x1 MIMO
- A-MPDU & A-MSDU aggregation and 0.4s guard interval
- Onboard PCB Antenna
ESP-12E pinout
| Pin | Name | Description |
|---|---|---|
| 1 | RST | Reset Pin of the module |
| 2 | ADC | Analog Input Pin for 10-bit ADC (0V to1V) |
| 3 | EN | Module Enable Pin (Active HIGH) |
| 4 | GPIO16 | General Purpose Input Output Pin 16 |
| 5 | GPIO14 | General Purpose Input Output Pin 14 |
| 6 | GPIO12 | General Purpose Input Output Pin 12 |
| 7 | GPIO13 | General Purpose Input Output Pin 13 |
| 8 | VDD | +3.3V Power Input |
| 9 | CS0 | Chip selection Pin of SPI interface |
| 10 | MISO | MISO Pin of SPI interface |
| 11 | GPIO9 | General Purpose Input Output Pin 9 |
| 12 | GPIO10 | General Purpose Input Output Pin 10 |
| 13 | MOSI | MOSI Pin of SPI interface |
| 14 | SCLK | Clock Pin of SPI interface |
| 15 | GND | Ground Pin |
| 16 | GPIO15 | General Purpose Input Output Pin 15 |
| 17 | GPIO2 | General Purpose Input Output Pin 2 |
| 18 | GPIO0 | General Purpose Input Output Pin 0 |
| 19 | GPIO4 | General Purpose Input Output Pin 4 |
| 20 | GPIO5 | General Purpose Input Output Pin 5 |
| 21 | RXD0 | UART0 RXD Pin |
| 22 | TXD0 | UART0 TXD Pin |
ESP-12E specifications
| Controller | ESP8266EX Serial WiFi 32-bit Tensilica L106 SoC |
|---|---|
| Working voltage | 3.3V |
| Supported voltage | 3.0 - 3.6V |
| Working current | 71-80mA |
| Maximum current | 500mA |
| Shallow sleep current | 2mA |
| Deep sleep current | 0.02mA |
| Flash Memory | 32MB / 4MB |
| WiFi Protocols | 802.11b/g/n |
| Frequency range | 2.4GHz-2.5GHz (2400M-2483.5M) |
| WiFi Modes | Client, Soft AP, Client+Soft AP (station, softAP, station+softAP) |
| Security | WPA-PSK, WPA2-PSK |
| Encryption | WEP, TKIP, AES |
| Network protocols | IPv4, TCP/UDP/HTTP/FTP |
| General Purpose Pins (In/Out, GPIO) | 17 |
| Maximum current per general purpose contact | 12mA, recommended 6mA |
| Analog inputs | 1, 10-bit |
| PWM outputs | 4 |
| Output power in 802.11b mode | +20dBm |
| Interfaces | UART, SPI, HSPI, SDIO, I2C, I2S, IrDA, GPIO, PWM |
| Integrated blocks | network matching, phase-locked loop, power management, regulation blocks |
| WiFi Antenna | PCB, routed on board |
| Pin spacing | 2.00 mm |
| LED indication | GPIO2 user pin |
| Working temperature | -40°...+85° |
| Dimensions | 24.0 x 16.0 x 3.2 mm |
ESP-12E applications
- IoT Applications
- Process Automation applications
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