Abstract: In An agricultural from perspective Internet of things-IoT domain known as “AgIoT”. These lands lacking of wireless internet connectivity infrastructure. One of the big issues in this domain are how to gathering, manipulate and transfer data wirelessly with a revitalization performance and considerate rationing of energy consumption. A low-power wide-area network (LPWAN) one of famous type of wireless telecommunication wide area network structured amid a set of low bit rate operated depending on batteries. In some agricultural areas, there are obstacles to collecting, processing and transmit a set of data contain characteristics and information related to the environment suitable for the type of crops in a manner appropriate to their nature. This nature of crops is rapidly changed during the four seasons that shifting weather condition during the year. Increased Efficiency: Farmers can monitor the crops in real-time, and thus, forecast concerns and make educated choices before they arise. Less Consumption of Water and Energy: Sensors throughout the fields assist the farmers calculate the right resources necessary. Reduced Operation Costs: The utility of IoT provides higher revenues as it leads to less human intervention owing to automated procedures. Low Usage of Chemicals: IoT-based solutions let farmers convert to cost-effective and eco-friendly agricultural practises via much-reduced consumption of toxic pesticides and fertilisers. Better Food Quality: Through the methods stated above, producers 14 may create the circumstances required to increase the quality of the crops. Monitoring of Farms From Anywhere: Farming organisations may monitor several fields in diverse places from any part of the globe. Furthermore, in the scalability issue of these networks necessitates us to design and implement a “FOTA” paradigm that’s comprehensively fit for “LPWAN” network criteria. In this research we propose a complete architecture of an “LPWAN” networks that’s capable of providing “FOTA” Capabilities to a grouped of remote sensory nodes using a low power Micro-controller from PIC Families. We provide excremental work on flashing remote sensor node based on Wireless Sensor Network - WSN using LoRa module based on “LPWAN” approach to achieve the lowest energy consumption in this use case.