Dan Linder
Published © LGPL

Refrigerator/freezer Health Monitor

An IoT monitor of the temperature of our refrigerator that is starting to have cooling problems.

EasyFull instructions provided3 hours1,220
Refrigerator/freezer Health Monitor

Things used in this project

Hardware components

SparkFun ESP8266 Thing - Dev Board
SparkFun ESP8266 Thing - Dev Board
×1
Maxim Integrated One Wire Digital Temperature Sensor - DS18B20
×3
Resistor 4.7K Ohm
×1

Software apps and online services

Cayenne
myDevices Cayenne

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

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Schematics

Diagram of wiring

A very basic diagram showing the wiring hookup of the components.
Sparkfun thing dev refrigerator monitor rqmkdck1jn

Code

SparkThing Temperature Monitor

Code for a SparkFun Thing Dev board to log three temperatures (ambient, freezer, refrigerator) to the Cayenne MyDevices site.

Credits

Dan Linder

Dan Linder

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