Rancang Bangun Prototype Sistem Monitoring Dan Kontrol Otomatis Pada Tanaman Wortel Berbasis Mikrokontroler Arduino Uno

Carrots are rich in vitamins A, B complex, C, D, E, K, antioxidants, and contain calcium, iron, magnesium, phosphorus, potassium, and sodium. However, its growth is difficult in hot temperatures such as in West Kalimantan. The research developed an Arduino Uno-based Automatic Monitoring and Control System to improve carrot growth. The system uses DHT22 sensor for temperature, soil pH sensor, and soil moisture sensor. Arduino Uno controls the fan if the temperature exceeds 29°C and the water pump to adjust soil pH and moisture for 10 seconds as needed. The results of testing the system have been able to monitor and control environmental conditions properly and display real-time data on the LCD screen, with an average difference in DHT22 sensor readings with a thermometer of 0.26 ° C, soil pH sensor with pH meter of 0.15, and soil moisture sensor with moist meter of 0.57%. This system can be a solution for environmental monitoring and control in carrot farming, especially in tropical areas such as West Kalimantan.