New Power Button Holder for D-Bot

I redesigned the Power button and installed a buck converter like this https://www.aliexpress.com/item/Ultra-small-LM2596-power-supply-module-DC-DC-BUCK-3A-adjustable-buck-module-regulator-ultra-LM2596S/659942135.html?spm=2114.01010208.3.76.xy4QVa&ws_ab_test=searchweb0_0,searchweb201602_6_10065_10068_10000009_10084_10083_10080_10082_10081_10060_10061_10062_10056_10055_10054_10059_10099_10078_10079_427_10073_10103_10102_10096_10052_10050_10051,searchweb201603_2,afswitch_3&btsid=a99135fb-865a-4606-840c-3b950a4ec68a into a separate compartment. So what happens is the mains goes to your PSU which I then feed back 12v into the buck converter which drops the voltage to 5v which I use to power the Pi. The USB cable is a short 250mm from here: https://www.amazon.co.uk/gp/product/B00FQGWBYQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 hope this helps.