I want to replicate lighting a 1:87 scale police car with the aid of an Arduino Pro Micro ATmega32U4 powered by a 90mAh 3.7V LiPo which is connected to a TP4056 5V Lipo battery charger which is connected to the Arduino. [Battery -[connected to]-> charger -[connected to]-> Arduino]
I want to power the following
- 8 blue 0402 leds (2 leds in parallel/pin - 4 pins) - sirens
- 4 white 0402 leds (2 leds in parallel/pin - 2 pins) - headlight PWM @ 125
- 4 red 0402 leds (2 leds in parallel/pin - 2 pins) - rearlights PWM @ 125
- 4 amber 0402 leds (2 leds in parallel/pin - 2 pins) - sidemarkers PWM @ 125
- 4 amber 0402 leds (2 leds in parallel/pin - 2 pins) - blinkers (2 leds for left & 2 for right)
But if all of the 24 leds are powered on the amount of current drawn from the micro-controller will be 24*20mA = 480mA. Which will burn up the Arduino in an instant.
Question: