ESP8266 - interesting platform for WiFi enabled projects

This small board can act as WiFi module for Arduino (or other µc - Teensy, Netduino, etc) or as standalone microcontroller. With RISC processor running at 80 MHz and with 1MB Flash You can do lot interesting projects. It has 2 GPIO pins to interact with other modules (OneWire).

ESP8266-01S technical details

• 2 GPIO ports, each PWM capable
• RISC processor 80MHz
• power supply 3.3V
• logic levels 3.3V

To program ESP You will need :

• dedicated USB stick for ESP-8266-01
• any USB/Serial converter
• to work on breadboard adapter will be very handy

Power supply During start and in some working modes ESP takes up to 220 mA of current. Not all USB/Serial converters will provide such current. In that case You will need some separate 3.3V source to power module. More on ESP8266 current consumption topic. TL;DR: module takes from 220 mA in 802.11b mode, through 130mA - 150 mA in n or g modes to single mA in power save modes.

What can I do with ESP8266-01?

Check this ready module with relay for ESP01 to control devices via WiFi. Read more on our blog Starter Kit

Useful links

• nodeMCU fw on github
• AT commands nurdspace.nl
• ESP8266 Wiki
• Tool for firmware uploading: ESPLORER
• Open project SUPLA - home automation with ESP8266 and other modules

Module is great tool for application prototyping. ESP8266 chip has FCC certification, however not as this module (with PCB).

ESP8266 / ESP32 modules

Dev boards ESP8266 / ESP32

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