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Author: search.filters.author.Pimpol, JirapunSubject: search.filters.subject.Blynk application

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    Item type:Publication,
    Low-Cost Smartphone-Controlled Exercise Machine for Arm and Leg Muscles
    (2026-01-01)
    Pimpol, Jirapun
    ;
    Channumsin, Orapin
    ;
    Pattoom, Pongwat
    ;
    Weawthaisong, Wipakpong
    ;
    Singusaha, Orathai
    This work proposes the design of a smart exercise machine for arm and leg muscles. The designed muscle arm and leg exercise machine can be controlled wirelessly through a smartphone application, which features a 3-level speed adjustment function. The motor speeds for arm muscle exercises are defined as 180, 210, and 240 rpm, while the speeds for leg muscles are set as 240, 270, and 300 rpm, respectively. In addition, the proposed machine incorporates a time function for muscle exercise and it can control the spin direction to rotate either forward or backward, depending on the requirement, using a microcontroller. Furthermore, it can display the distance traveled by an application on a smartphone. The experimental operation of the automatic arm and leg exercise machine revealed that it could accomplish its intended functionality.
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    Automatic Monitoring and Controlling System for Hydroponics Greenhouse Environments Through Smartphone Application
    (2022-01-01)
    Channumsin, Orapin
    ;
    Trancharoen, Jirasin
    ;
    Sonchaiyaphum, Sarut
    ;
    Pimpol, Jirapun
    ;
    Tangsrirat, Worapong
    This article proposes the design and construction of environmental control systems for hydroponics grown vegetables that enable automated control over the environment inside the greenhouse to be most suitable for the plants growth by using microcontroller processing. The systems can track various measurements such as temperature, humidity, intensity of light, water pH value, and water level in a greenhouse by using Blynk application on a smartphone as well as LCD display screen surrounding the greenhouse area. In addition, the systems can automatically control the operation of ventilation fans and mist sprayer machine according to the specified humidity temperature value and it can be set ON and OFF timer for whirlpool pump and LED light bulbs. Moreover, after a 42-day-Testing period of planting three varieties of lettuce, which are Red Oak, Green Oak, and Frillice Iceberg Lettuces, it has been found that Red Oak lettuces have an average width of 21.2 cm, a length of 26.4 cm with a weight of 120 gram, while Green Oak lettuces have an average width of 8.1 cm., a length of 31.0 cm with a weight of 120 gram and lastly, Frillice Iceberg Lettuce has an average width of 19.0 cm, a length of 46.9 cm and a weight of 200 gram.