Frontend and backend electronics for the ATLAS New Small Wheel Upgrade

<!--HTML-->The present ATLAS innermost endcap muon station will be replaced by a New Small Wheel (NSW) detector to handle large trigger and readout data rates expected at high luminosity LHC runs. Two new detector technologies, Resistive Micromegas (MM) and small-strip Thin Gap Chambers (sTGC), will be used for triggering and tracking. A common readout path and two separate trigger paths are developed. It is challenging to integrate and commission this complicated detector-electronics system with 128 MM and 192 sTGC detector modules and 2.4M readout channels. I will discuss the design of the NSW electronics and the status of detector-electronics intergration.