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humidity_monitoring

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humidity_monitoring [2017/05/19 10:22] – tomglehumidity_monitoring [2017/06/09 10:32] (current) – tomgle
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 ===== Humidity Monitoring ===== ===== Humidity Monitoring =====
 The crawl space temperature and humidity are monitored via a DHT-22 probe dangling from the joists.  This passes through the floor into the control room where it is attached to a Huzzah gathering Temperature and Humidity and sending the data via WiFi to the MQTT broker.\\ The crawl space temperature and humidity are monitored via a DHT-22 probe dangling from the joists.  This passes through the floor into the control room where it is attached to a Huzzah gathering Temperature and Humidity and sending the data via WiFi to the MQTT broker.\\
 +
 The MQTT topics are on Google Docs in the following spreadsheet:\\ The MQTT topics are on Google Docs in the following spreadsheet:\\
 [[https://docs.google.com/spreadsheets/d/1fnR15K5wrnArtJH7ZCU0acrIlH9RIHi7XJ_q_XNXhys/edit#gid=0|Google Docs Topic definitions]]\\ [[https://docs.google.com/spreadsheets/d/1fnR15K5wrnArtJH7ZCU0acrIlH9RIHi7XJ_q_XNXhys/edit#gid=0|Google Docs Topic definitions]]\\
 +
 The monitor is pictured here:\\ The monitor is pictured here:\\
 {{::crawl_space_monitor.jpg|}}\\ {{::crawl_space_monitor.jpg|}}\\
 +
 +Wiring the DHT device:\\
 +Color code used:  VDD = white/brown stripe, Data = blue, Common = brown\\
 +V+ is shown as VDD below.\\
 +{{:info:dht22_hookup.jpg|}}
 +
  
  
humidity_monitoring.1495203743.txt.gz · Last modified: 2017/05/19 10:22 by tomgle