Judul: Rancang Bangun Modul Akuisisi Data Untuk Sistem Irigasi Otomatis Berbasis Mikrokontroler Arduino Duemilanove
Abstrak: This research is part of activities in IMHERE B2C IPB Strengthening Agricultural Research For Food Security And Sovereignty. Implementation of the research project will assess the Development of Automated Irrigation Systems For Food Production Land with research focus on the mechanism of data acquisition. Data acquisition is performed using the Arduino Duemilanove microcontroller. Arduino Duemilanove can perform data retrieval as well as having an ADC module, so as to facilitate the conversion of data from analog data into digital data. From the datasheet, ADC module on the Arduino Duemilanove has an error range of ± 2 LSB or ± 0.0092 V with a reference voltage of 4.67 V. In this experiment measurements obtained by the difference in value between the multimeter and the microcontroller of 0.00840 V, and the scores fall in the range of values of the ADC module conversion error. SD Memory Card can be selected as a data logger for managing data storage easily
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Judul: Rancang Bangun Monitoring Sistem Irigasi Otomatis Berbasis GSM/GPRS
Abstrak: Irrigation is a human attempt to irrigate farmland. Various efforts have been done to build the concept of irrigation. However, the real implementation may create different problems. Basically, irrigation is related with the accessibility of ground water, which gives a large contribution to increase the agricultural production. A good irrigation system that can provide water in the correct level, amount, and time is required. The irrigation system should be well planned, designed, and operated efficiently to increase the agricultural production and ease of use in their operations. This research is a part of IMHERE IPB activity on the event of strengthening agricultural research for food security and sovereignty: advanced infrastructure for food security and sovereignty. The focus of this research is the development of automated irrigation system for food production land based on the data communication using GSM/GPRS. Arduino microcontroller was used as a client with GSM/GPRS shield to communicate with the internet as the server. Soil moisture was used as the sensor to detect the water content of farmland. LED was used to represent the real actuator of irrigation. If the water content detected by the sensor is less than 300, the actuator at the client will be turned on. In the system, data collected by the sensor was immediately sent to the server. Utilizing this scheme, it was found that the average time for connecting Arduino client to the server without delay was 40 seconds. The system was also tested by giving a certain delay, where sensor data was collected every 10, 30, and 60 seconds after the previous data from client was received correctly by the server. The results showed that there was no data loss due to the communication from Arduino client to the server. Furthermore, the data delivery was not affected by the addition of delay on the system.
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Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
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