In this study, as follows: 1. the objective is to develop a set of commands, writing programs using the Arduino microcontroller to develop 2. display LCD screen, through the humidity values can only be read two decimal places. The tools used include: 1. the mind Board Arduino EPL Uno-R3 TYPEA TYPE B USB TO 2.3.4-Pins Male to FeMale Cable 40.16 × 2 LCD Character – Basic White 0n SHT1x Temperature and Humidity 5. Blt Sensor 7. EE-KU-65 version of Grain moisture meter Moisture tester of pathum Thani Rice Research Center, decimal scales, 4 position 8.9. Paddy varieties in saraburi on poles that are used in the data analysis statistics include average. The research found that the set of commands using the Arduino micro-controller display LCD screen through the humidity values can only be read two decimal places and moisture from the write routine using the Arduino micro-controller to the same direction in the version EE-KU-65 Grain moisture meter tester of pathum Thani Rice Research Center, Moisture.
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