We love great (and cheap) hardware and figured it was time for us to create an example where we made use of the ESP8266-module. The price point makes it perfect for makers that want to explore the Internet Of Things. Equipped with SPI and UART interfaces and depending on the module, a number of GPIOs. You can find the module for as low as $2 on eBay. If you have not heard of this module before it is a 802.11b/g/n WiFi module. Today there is an Arduino-compatible SDK available and many more libraries have been written for it. At the time of the publishing of that article not much was known about the cheap WiFi module – however the the module was received with open arms by the maker/hacker community and a lot of interesting community projects have been created using it. It’s been roughtly a year since Hackaday published the article “New chip alert: The ESP8266 WiFi module (It´s $5)”.
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