Humidity Measurement by using Device of Humidity and Temperature Sensor (DHT11) by Microcontroller at mega 16

Abstract

Three brick clay samples were prepared by mixing the garirh and kaolin earth with different percentages for three samples. Refractory brick components were for sample 1 (75% garirh, 25% kaolin), sample 2 (70% garirh, 30% kaolin), and sample 3 (80% garirh, 20% kaolin). Measurement of the humidity of the three samples was performed by a device assembled by the researchers. The electronic device consists of a port connected to Liquid Crystal Device (LCD) screen to display the reading of humidity inside and outside the room, and a microcontroller of 16L mega, which was programmed by the computer using the Bas com AVR program for scientists of the Netherlands (Alf and Vegard Risc prosier). The data was transferred to the electronic port, and finally two DHT11 sensors for measuring the internal and external humidity was connected. After measuring the humidity of the three samples a graph was drawn consisting of humidity versus time. Measurements were performed each hour from 6 am to 10 pm. The results were then graphically drawn, and the results of the three samples were obtained; showing high humidity in the morning, very low humidity at noon and again very high humidity in evening. By comparing the three samples of the Jazeraa and Khartoum states, the best humidity sample was the first sample which consists of (75% garirh, 25% kaolin), because the humidity was very low compared to other samples. It was found that the best sample of humidity was the first sample which consists of (75% garirh, 25% kaolin). After studying these results, the researcher recommends that in areas with high humidity brick type of the first sample, which consists of (75% garirh, 25% kaolin) should be used