When an ESP8266 encounter MQTT and an accelerometer

This is a project I built for a presentation at http://milan2015.codemotionworld.com/ on November 21st.
This idea use ESP8266 (esp04), Nodemcu, MQTT and an accelerometer (adxl345 / sparkfun) by I2C.
It is an IOT project.
This project started as a "drone project" but the original idea changed during time.. by the way, helped me to do:

• some experience with MQTT and I2C
• see how much I can push the Esp8266

It was an interesting challenge!
Check the slides on my previous post to learn more about the project.
In my final demo I had:

• ESP8266 wired with the ADXL345: CS (3.3V), Vcc(3.3V), GND(common GND), SDA (GPIO 2), SDL (GPIO 0).
• a custom nodemcu firmware changed by me  in order to pass this problem with MQTT publish.
• the mosquitto broker running
• the script used during the presentation: available here with instructions
• I have also developed a viewer with NodeJS,MQTT, d3.js, WebSocket for the browser but it's not availble.

Feel free to write me if you want to repeat the project and need helps.

ESP8266 and IOT talk at Codemotion Milan 2015

I was a bit far from the blog.. but it was because I was preparing a talk for

http://milan2015.codemotionworld.com/

I built a demo using nodemcu, esp8266, mqtt, mosquitto, nodejs and adxl345.
Shortly: reading raw data from accelerometer (x,y,z) and send that data with MQTT through wifi.

ESP8266 and IOT from dega1999

More info coming veeeery soon..with sourcecode!