Rancang Bangun Sistem Error Detector Pada Pemasangan Komponen PCB Berbasis Microcontroller Arduino UNO
Keywords:Sensor LM35, DFRduino UNO V3.0, Liquid Cristal Display
This study aims to make a physical design of a room temperature detector using an LM35 sensor with DFRduino Uno V3.0 based on Liquid Cristal Display (LCD), to find out the Java programming language which is arranged to command the components of the instrumentation circuit and to know the temperature results detected by the instrumentation circuit. LM35 sensor from a tool that has been made and compares with a room temperature thermometer. The room temperature detector is designed to determine the temperature in a room and is displayed on the Liquid Crystal Display (LCD). The temperature signal around the room will be detected by the LM35 sensor where the LM35 sensor detects a signal in the form of a voltage. The signal is processed into a digital signal using the Java language which is listed in the code on the Arduino Software. Temperature signal processing using DFRduino UNO V3.0 produces more accurate detector results. Using the LM35 sensor and DFRduino UNO V3.0 the average room temperature using a room detector was (29.15 ± 0.5oC) and an analog thermometer (29.23 ± 0.5oC). From the difference in the values of the two measuring instruments, it is found that the % error range of the designed detector is 0.27%, the temperature range that is accurately detected is at 28-31oC. The room temperature detector design is equipped with a security system using a keypad as a password switch. Based on the detector design results, it is known that the LM35 sensor works well and provides accurate temperature information
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