Soil pH is very vital for all life on agriculture. For a farmer, knowing how much of soil pH (Potential of Hydrogen) is very important. By detecting of the soil pH, it will be easier for a farmer to decide for certain agriculture plants. This research aims at develop an automatic soil pH detecting system for Farmer to visualize the soil pH demand of smart farmer using the microcontroller and smartphone. The tool model is as an information for the farmer, which also includes the devices of suitable plants on the soil which could be used to decide the type of plants suitable for the soil. By detection results of this pH sensor will decide also whether or not to drain nutrients and whether to flush the air conditioner or not. We developed the tools model to detect pH in some of soil. We include a Google maps also in order to find out the pH value of the soil in a particular region. We have tested a number of soil samples area, namely humus soil, soil with a mixture of manure, fertilizer, compost, and soil mixed with sand. The research shows the soil pH based on android by online. Furthermore, the pH value and address of the coordinates tested are stored in the firebase database. In detecting of soil pH, the system only need about 2-5 seconds time during the processing to detect the pH of some soil.
The problem Heart attack is one of the causes of death at this time. A person may not realize that he suddenly experiences an improper heartbeat so that a sudden heart attack can result in sudden death. Usually a traditional heart rate calculation has been done using hardware such as oximeters or electrocardiogram devices. Although this device has a reliable method for normal users, the use of this device takes a long time to carry out the inspection process. In this paper, we propose a method that can detect heartbeats that are detect directly and can be shared to several telephone numbers of family users, hospitals, paramedics, or private doctors. We developed an internet of thing method that integrates a pulse sensor, microcontrollers and Wi-Fi series data communication device modules ESP8266. The detection of pulse sensors attached of the patient’s body (users) and the microcontroller will be sent in a real time by the ESP8266 circuit module to the several smartphone numbers that have been set it before. The result and benefit of this method is that the patient (user) can be helped immediately if there is a heart rate abnormality, because of the heart rate detection results will spread to the several other people so that the patient (user) can be helped immediately before the condition becomes more fatal.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.