Nowadays,　with　the　increasing　output　of　municipal　waste,　the　pressure　on　municipal　waste　treatment　is　increasing.　In　this　case,　utilizing　low-cost　and　low-power　IoT　technology　to　improve　urban　waste　management　has　become　a　popular　trend.　This　paper　proposes　an　intelligent　garbage　management　system　for　urban　communities:　Garbage　Manager.　The　Garbage　Manager　aspires　to　create　energy-efficient　and　real-time　waste　detection　based　on　IoT　and　data　visualization　technology.　In　this　work,　the　NodeMCU　chip　integrated　with　a　high-precision　ultrasonic　sensor　is　used　to　measure　the　height　of　the　waste　in　the　garbage　bin　and　transmits　the　data　to　the　database　through　the　Ali-cloud　IoT　platform.　In　addition,　a　web　page　is　created　as　a　graphical　user　interface　to　display　the　status　of　the　garbage　bins　in　real-time.　Experimental　results　show　that　the　Garbage　Manager　is　able　to　decrease　the　manpower　from　clearing　the　garbage　by　24.07　%　and　reduce　the　garbage　overflow　times　by　83.33　%.　©　2022　IEEE.