Hope you don't mind but I drew your circuit into a CircuitLab schematic and added a simulation: https://www.circuitlab.com/editor/yxs8aks2yz95/ https://www.cir

Hope you don't mind but I drew your circuit into a CircuitLab schematic and added a simulation: https://www.circuitlab.com/editor/yxs8aks2yz95/ https://www.circuitlab.com/editor/yxs8aks2yz95/ Specified a few missing values, but there you go -- the LED lights (see the simulation current plot)! As long as the microcontroller doesn't reset from every VCC dip...