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ESP8266EX, single Chip WiFi network solution, SoC, 802.11bgn Smart Device


ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.

ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

ESP8266EX Features

  • 802.11 b/g/n protocol
  • Wi-Fi Direct (P2P), soft-AP
  • Integrated TCP/IP protocol stack
  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • Integrated PLL, regulators, and power management units
  • +20.5dBm output power in 802.11b mode
  • Supports antenna diversity
  • Power down leakage current of < 10uA
  • Integrated low power 32-bit MCU
  • SDIO 2.0, SPI, UART
  • STBC, 1x1 MIMO, 2x1 MIMO
  • A-MPDU & A-MSDU aggregation & 0.4μs guard interval
  • Wake up and transmit packets in < 22ms
  • Standby power consumption of < 1.0mW (DTIM3)
  • QFN32 package

In-Circuit GmbH offers

  • Integration of ESP8266EX in your Design
  • Review of your Design files
  • Software support
Webserver Demo running from ESP Webserver Demo running from ESP WLAN setup, ESP acts as Access point Networking
  • Antenna matching
  • Support your certification process
  • Assemble your boards (prototypes and series production)
  • distribution of ESP8266EX and also the whole chipset (ESP8266EX+Crystal+Seriel flash)

ESP-ADC DIL18 development board

ESP-ADC DIL18 module
ESP-ADC DIL18 modules delivered in reels ESP-ADC DIL18 module with wire antenna
ESP-ADC DIL18 module pinning ESP-ADC DIL18 module connected via U.FL and antenna cable

ESP-ADC DIL18 Schematic and Pinout
ESP-ADC DIL18 dimensions


The ESP ADC DIL18 is also available as SMD version for surface mounting. It is electricaly identical with the THT version and has an aditive metal cover for EMC-reasons

ESP-ADC SMD module
ESP-ADC SMD module
ESP-ADC SMD module T&R

EU conformity ESP-ADC SMD

radino WiFi - ESP8266EX combined with Arduino Micro

The radino WiFi minimizes your time to market. It offers Full WiFi Access and combines it with the flexibility ease of use of the Arduino Mico (ATmega32U4). In-Circuit offers some Arduino Examples that show:

  • how to setup/reprogram the ESP8266EX through the Arduino
  • how to bring up webserver solutions
  • how to connect sensors and actors and build up a customized website in just a few minutes without any coding for ESP8266EX!
  • radino WiFi ESP8266 Webserver GPIO Demo with RGB LED
radino WiFi module
radino WiFi module, bottom view
suitable Development board: Leonardo
suitable Development board: Leonardo
radino Spider 2.4G with integrated chip antenna
radino Spider with RP-SMA antenna radino Spider with RP-SMA antenna
radino USB Stick
radino USB Stick
radino watch application board with integrated 9-Axis sensor, TFT, LiPo-loader
radino DIN Rail adapter radino blinds controller

Software documentation for the ESP

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