Datasheet

Using Arduino IDE

While the HUZZAH ESP8266 breakout comes pre-programmed with NodeMCU's Lua interpretter, you don't have to

use it! Instead, you can use the Arduino IDE which may be more familar. This will write directly to the firmware, erasing

the NodeMCU firmware, so if you want to go back to Lua, use the flasher to re-install it

In order to upload code to the ESP8266 and use the serial console, you will need a USB to serial converter! Use either

an FTDI cable or any console cable, you can use either 3V or 5V logic and power as there is level shifting on the RX

pin.

Don't forget to visit esp8266.com for the latest and greatest in ESP8266 news, software and gossip!

Connect USB-Serial cable

Connect either your console cable or FTDI cable. If using FTDI, make sure the black wire goes to the GND (ground) pin

If using a console cable, connect the black wire to ground, red wire to V+, white wire to TX and green wire to RX

PL2303 USB console cables seem to only work with Windows computers for some reason. Mac users, we

suggest FTDI cables!

The ESP8266 uses a lot of current, so if you're getting flakey behavior make sure you are plugging your

console cable into either a motherboard USB port or a powered USB hub. Don't use the 'extra' USB port on

your monitor or keyboard.