Blockcraft is the 1st commoditized blocks type IoT sensor, which includes flexibly assembly network module, sensor modules, and optional power module, to enable one IoT sensors could be easily applied in every scenario. For example: Blockcraft temperature sensor could add one GPS and one G-sensor module to be applied in cold-chain logistic monitoring. Not only flexible but meet SDGs: Every individual module of Blockcraft could be recycled when device is not used anymore, and could be reused in new applications to save electronic waste, and can add optional power harvesting module (for example: solar module) to achieve real energy autonomy.