 So where else can we save more power consumption from? So let's have a look at the compiler now. There are various settings inside the GCC compiler for doing all the optimization. We're currently running IAR. So inside the IAR compiler, you can go into the compiler optimizer settings, and set optimization levels to high and set it to run as fast as possible. So set it for speed. To do this, you go right-click on the project folder at the top of your left-hand side of the screen in the IAR compiler and select options. Then you select the C compiler and C++ compiler tab and click on optimizations. By default, everything is set for size at the moment. So we want to now set it for speed so that we can make sure that everything's processed as fast as possible so that the device can go into sleep mode as quick as possible within the application. So we'll have a play around with this one. So if you go back to our IAR workspace, we're going to go into that options area and look for the compiler optimization tabs. We're going to change it to speed and then recompile our code and download it to the board so that we can see how changing the compiler settings improves the current consumption in our play and stop modes.