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ESP-12E ESP8266 WiFi Module

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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

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

Datasheet

esp12e-datasheet.pdf
Format PDFSize 719 KBLanguage EN
Third-party / unverified source

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

PinNameDescription
1RSTReset Pin of the module
2ADCAnalog Input Pin for 10-bit ADC (0V to1V)
3ENModule Enable Pin (Active HIGH)
4GPIO16General Purpose Input Output Pin 16
5GPIO14General Purpose Input Output Pin 14
6GPIO12General Purpose Input Output Pin 12
7GPIO13General Purpose Input Output Pin 13
8VDD+3.3V Power Input
9CS0Chip selection Pin of SPI interface
10MISOMISO Pin of SPI interface
11GPIO9General Purpose Input Output Pin 9
12GPIO10General Purpose Input Output Pin 10
13MOSIMOSI Pin of SPI interface
14SCLKClock Pin of SPI interface
15GNDGround Pin
16GPIO15General Purpose Input Output Pin 15
17GPIO2General Purpose Input Output Pin 2
18GPIO0General Purpose Input Output Pin 0
19GPIO4General Purpose Input Output Pin 4
20GPIO5General Purpose Input Output Pin 5
21RXD0UART0 RXD Pin
22TXD0UART0 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

ESP-12E datasheet PDF preview

PDF · 719 KB

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