The article is devoted to the development of an intelligent system, based on the Arduino hardware and software platform. It is an element of the Smart House, which at the core lays the concept of IoT (Internet of Things). The device is designed for continuous automated monitoring condition of the aquarium, with the ability to remotely inform his owner. Monitoring and support of the life processes is carried by parameters such as feed supply, control of the temperature set, control of illumination. Versatility and modularity of the platform makes it possible to use it for any type of aquarium with the ability to expand functionality by adding the necessary sensors or metrics. The basic stages of designing of the device are described, its characteristics and the results of its work are given.
Unrealibility of radio communication is an important issue for wireless sensor networks. Message retransmission is a common remedy for data loss in such networks. Present paper is devoted to research of number of retransmissions necessary for succesful message deliver. We introduce a simple method for determinig this number based on statistical analysis of data loss.Our method was implemented in the form of protocol for data gathering from working node to the main node. The protocol was tested on a pair of nodes built on Arduino board and NRF24 transciever. Our experiments show that proposed method reduces data loss significantly.