I'm in the process of making a small replica of a Twin Sonic lightbar for an RC car and am trying to code it to the correct flash rate. I initially made it using discrete components, but trying to make the LEDs fade correctly added way too many components. I programmed an MCU to 90 FPM, but it still seems fast. I'll eventually make a post, but wasn't sure of the correct area, since it is just a model of the light. I still need to figure out how I'm going to make the domes.