ESP8266

This is a collection of resources for software/hardware/firmware development on/with an ESP8266.

Basics

• Datasheet

Choice pieces of information

• The module nominally runs on 3.0-3.6V. In practice, it tends to boot just fine as low as 2.5V, and 4.7V is the absolute maximum. Source
  • This means you can probably get away with running an ESP8266 directly off of a single Li-ion/Li-poly cell. More information on Li-ion battery voltages
  • The often-repeated information stands: This is not a 5V device. If you run it off of 5V, you will smoke it within a few seconds.
• According to the datasheet, the module "typically" can draw up to 170mA (whatever that means). In practice, your supply needs to be able to provide at least 300mA.

Random resources

• http://frightanic.com/iot/comparison-of-esp8266-nodemcu-development-boards/
• https://github.com/cnlohr/esp8266ws2812i2s
• https://github.com/esp8266/Arduino/blob/master/doc/libraries.md#esp-specific-apis Might be useful for making a demo sketch. also talks about general ESP functions.
• https://github.com/Makuna/NeoPixelBus - Arduino NeoPixel library compatible with ESP8266. Use the "DmaDriven" or "UartDriven" branches for ESP8266. Includes HSL color support and more.
• https://tzapu.com/sonoff-firmware-boilerplate-tutorial/ - Sonoff
• https://github.com/esp8266/Arduino/blob/master/doc/libraries.md#esp-specific-apis - Library list
• https://github.com/me-no-dev/ESPAsyncTCP - async tcp operations. There is a Web server too.