Hey gang I’m new here and am making a replica prop gun from the movie Oblivion. I’m wanting to add LEDs and sound to the gun such as a selector on/off switch (LEDs will turn on/off and a charge/power up sound) and when the trigger is pulled a couple of LEDs will light up in the barrel mimicking muzzle flash and also the sound of it being fired. The materials list is below. I just need help with the size of battery I will require. I want to use a Adafruit Polymer Lithium Ion battery with charger.
Adafruit Audio FX mini sound board - WAV/OGG trigger 2MB
Mini metal speaker (1inch diameter) 8 Ohm 0.5w
Polymer lithium ion battery 3.7v 120mah…will this be enough???
Adafruit micro lipo charger v1
Mini 8 way rotary switch SP8T…will this work as the on/off selector switch as it rotates up/down to turn on/off???
5mm LEDs x 4
Micro switch for trigger