Cigars, crafted from tobacco leaves, are quite sensitive to the surrounding environment. An environment that is too humid or damp will result in cigars that are too moist, and on the other hand, if the humidity level is too low, the cigars could become too dry. Both will greatly affect the overall smoking experience. Additionally, cigars that are exposed to extremely harsh environments may be permanently damaged, which can be an expensive loss. For this reason, a device called a humidor was invented to control the environment surrounding the cigars, keeping them at constant humidity. At a cigar store, a humidor is usually the size of a small room, however, for storage of a personal collection of cigars, smaller humidors are available, the size of a small box, or a large jar, as was used in this project.
Evidently, some sort of device is needed to accurately measure the humidity of an environment. For most cigars, the optimal humidity level is 69%.The purpose of this project was to utilize a DHT-11 humidity sensor paired with a Particle Argon to obtain temperature and humidity data, and to display that data on an RGB LCD display paired with another Argon. The two argons communicate with bi-directional communication. The display receives a signal from the temperature sensor and another message is sent from the display to verify that the signal was received. This is achieved with particles publish and subscribe feature. An image of our 2nd argon and connected LCD Display is shown below.
The following is a link to the ThingSpeak page that contains the live data from the DHT11 sensor readings whenever the Particle Argon is powered on (NOTE: the DHT11 sensor has a % Humidity tolerance of +/-5% so, while 69% is ideal, readings from 64% - 74% are considered acceptable):
https://thingspeak.com/channels/1241154
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