README.md

nodemcu-collector

Collect measurements from sensors connected to NodeMCU and transmit them to InfluxDB.

This project is intended as starting point for projects where you have to collect data from a set of sensors connected to ESP8266 and any othe IoT platform that support NodeMCU firmware.

Requirements

• A ESP8266 module or similar
• Knowledge about NodeMCU platform and Lua programming language
• A NodeMCU firmware compiled with these modules at least: bit,dht,file,gpio,i2c,net,node,rtctime,sntp,tmr,uart,wifi . You can compile it easly using http://nodemcu-build.com/
• ESplorer for edit and upload code to the module
• An accessible instance of InfluxDB server

Assumptions

• You want collect data from sensors without interaction
• You need the most fiability as possible. It means support wifi or influxdb shutdowns with minor data loss.
• You supply energy to module using a mini UPS device.

Installation

• Clone or Download this repository
• Edit config.lua and config_local.lua according to your environment
• Upload all these files to NodeMCU module and reset it
• Inspect output of serial console of module, you should see a succesful wifi connection info.
• Start sending basic measurements to InfluxDB, type on console: require('main')
• Check data captured on InfluxDB. You will get these measurements: node_heap, wifi_signal, node_event

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