jeanfbrito

First experiments with NodeMCU to publish the current settings of my adjustable height working desk to MQTT.

NodeMCU can be found here: https://github.com/nodemcu/nodemcu-firmware

Note that you'll need a current version with support for floats (which the ultrasonic sensor library utilizes), I'm using 0.9.5 2015-03-18 with float support myself.

Support for the HC-SR04 sensor in NodeMCU can be found here: https://github.com/sza2/node_hcsr04

I provided my slightly adjusted version which makes measuring a non-blocking afair, allowing for callbacks when the measurement completes.

jeanfbrito

// Load accelerometer
var adxl345 = require('jsupm_adxl345');

// Instantiate on I2C bus
var adxl = new adxl345.Adxl345(0);

// Initialize the hardware device
var screen = new (require("jsupm_i2clcd").SSD1308)(0, 0x3C);

// Displays a message on the OLED display

jeanfbrito

-- Your access point's SSID and password
local SSID = "greenhouse"
local SSID_PASSWORD = "senhasupersecreta"
local DEVICE = "undefined"
local timesRunned = 0

SDA_PIN = 6 -- sda pin, GPIO12
SCL_PIN = 5 -- scl pin, GPIO14

-- configure ESP as a station

jeanfbrito

-- Your access point's SSID and password
local SSID = "greenhouse"
local SSID_PASSWORD = "senhasupersecreta"
local DEVICE = "undefined"
local temperature = 27.5
local timesRunned = 0

-- configure ESP as a station
wifi.setmode(wifi.STATION)
wifi.sta.config(SSID,SSID_PASSWORD)

jeanfbrito

// The received message is stored in 'msg'
// It will have at least a 'payload' property:
//   console.log(msg.payload);
// The 'context' object is available to store state
// between invocations of the function
//   context = {};

//expects JSON payload and destination specified in topic

var key = "your api key here";

jeanfbrito

-- Your access point's SSID and password
local SSID = "greenhouse"
local SSID_PASSWORD = "senhasupersecreta"
local DEVICE = "device001"
local temperature = 27.5
 
-- configure ESP as a station
wifi.setmode(wifi.STATION)
wifi.sta.config(SSID,SSID_PASSWORD)
wifi.sta.autoconnect(1)

jeanfbrito

--- Config
SSID       = "Dark side of the Force"
PASSWORD   = "senhasupersecreta"
TIMEOUT    = 30000000 -- 30s

--- Station modes
STAMODE = {
  STATION_IDLE             = 0,
  STATION_CONNECTING       = 1,
  STATION_WRONG_PASSWORD   = 2,

jeanfbrito

-- ***************************************************************************
-- BH1750 module for ESP8266 with nodeMCU
-- BH1750 compatible tested 2015-1-22
--
-- Written by xiaohu
--
-- MIT license, http://opensource.org/licenses/MIT
-- ***************************************************************************
local moduleName = ... 
local M = {}

jeanfbrito

pin = 4
status,temp,humi,temp_decimial,humi_decimial = dht.read(pin)
if( status == dht.OK ) then
  -- Integer firmware using this example
  print(     
    string.format(
      "DHT Temperature:%d.%03d;Humidity:%d.%03d\r\n",
      math.floor(temp),
      temp_decimial,
      math.floor(humi),

jeanfbrito

source: https://marciocabreira.wordpress.com/2011/08/14/criando-links-simbolicos-no-windows-com-mklink/

J:\Steam\steamapps\common\Grand Theft Auto V
C:\Grand Theft Auto V

mklink /D "J:\Steam\steamapps\common\Grand Theft Auto V" "C:\Grand Theft Auto V"