@thesis{thesis,
		author={Wahyu  Hanggoro Mukti},
		title ={Rancang bangun sistem pengendali keasaman (pH AIR )pada tanaman selda menggunakan sistem hidroponik berbasis arduino dengan report SMS},
		year={2015},
		url={https://repository.ittelkom-pwt.ac.id/339/},
		abstract={Indonesia is an agrarian country, therefore, agriculture is one of the sectors that are important to community life Indonesia. Supporting this sector as the availability of food, as the development of a technology information system at a rapid samakin create a society increasingly interested in a technology that is able to facilitate in the treatment plant is hydroponic with techniques of Non-substrate. Success in the field of Agriculture with hydroponic systems are largely determined by several factors, among others, the quality of seed, water quality, Water pH stability, and nutrients are always fulfilled. One of the parameters that must be considered in the process of planting lettuce with hydroponic system is the stability of the pH of the water that is located in the range pH 6.0-7.0.
Process control of water pH on lettuce plant nutrients water shelter (Lactuca sativa) using the ATMega 328P integrated with the Arduino. If the value read by the sensor pH the pH of water is below 6.0 then system will be ordered to enable the pump solutions of bases, if the Ph is above 7.0 legible then the system will be ordered to enable the pump acid solution and sends a short message in the form of the results of measurements of the pH of the water. From the test results the second relay mini water pump is active when the relay driver circuit got voltage on the foot base (VBE) with a value amounting to 0.80 volts. Whereas when the relay is off the value of the voltage at the base of the foot (VBE) of 0 Volts and the higher the pH value of the water measured the value of ADC that is unreadable in the smaller (pH 4 the value of ADC: 632, pH 7 the value of ADC: 528 and pH 10 the value of ADC: 435).
Keywords : PH sensor, Hydroponics, pH solution and Arduino Uno.}
		}