With the dev elopmen t of Internet of Things (IoT). bridging wireless sensor netw orks (WSNs) with other netw orks has become importan t. We divide bridging solutions into tw o categ ories: the hardw are solutions and the middlew are solutions. The hardw are solutions have both low pow er short distance wireless interf aces and other types of transmission interf aces. https://jalyttlers.shop/product-category/pen-holder/