The ESP8266 was introduced around 2014. It is a very inexpensive chip ( as little as $3) that supports WiFi. on-board processing , serial communications , GPIO , ADC , .......
NL6621 from Nufront
AT Command Set
I had found no ForthLang support as of 2015m07d13
by Craig Lindley
Lua is a coding language aimed at providing a small footprint and wide range of capabilities.
Olimex has been at the forefront of promoting and developing FLOSS OSHW Open Source products.
development board 6 euros
tags: 777ESP8266 #esp8266 esp8266WFT