I need a simple circuit designed to be printed onto a pcb board to drive LEDs. The circuit is for a toy vehicle, not for a real life vehicle.
The components to be selected must be common, inexpensive, and preferably surface mount to save space.
My other boards I currently have are sized around 2.5cm x 2.5cm x 5mm tall so I would like this size or smaller.
The circuit will take input of 3 volt DC such as 2-AAA or 2-AA. The output to the LEDs will be 3 volt also. The circuit will drive from 2-20 wired LEDs so it must be able to output 400milliamps or more. There are to be 4 positions for LED wires: a +/- on the left and a +/- on the right. Each position can hold many LED wires, maybe 10
The pattern flash I need for the LEDs is 3 quick left pause 3 quick right. This pattern as such as you would see in a modern tow truck / plow truck /emergency truck.