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ESP8266

The ESP8266 is a microcontroller by Espressif.

Properties

Property Value
Nominal Voltage 3.3 V
CPU

32 bit CPU

Connectivity 2.4 GHz Wifi, Bluetooth
ADC 1 10-bit ADC with max 1.0 Volt
Pins GPIO Pins, I2C, SPI, UART


Boards

NodeMCU 1.0

The NodeMCU 1.0 is a popular development board for working with the ESP8266 (Often with the variant ESP-12E). It has the following properties:

  • A USB interface (usual Micro USB)
  • USB-To-UART Chip (CH340 or CP2102)
  • Voltage regulator for 3.3 V
  • Reset and Flash button
  • Breadboard friendly pins
  • 4MB Flash memory