The breadboard can simulate any type of blade and is a really nice tool for developing arduino based sabers. Since I’m not using any high power LEDs or strings, a DynaOhm is all it needs, making the transistors that would normally be required unnecessary. If I want to use a high ppower LED, there is plenty of room to drop in a few transistors on the board and connect a harness for the LED. The pixel strip is covered in a strip of white vinyl tape because staring at those things will make you blind!
One thing I didn’t note is that the power source is an old mobile phone battery attached to the bottom. The battery has about the same capacity as the 18650 cells I normally use, and it’s totally sufficient for powering this setup.
This is also a fun demonstration tool for people who have an interest in what goes into building sabers from scratch (and really makes one appreciate the DIYino boards!).
BOM:
1x Breadboard
7x 5mm LED
1x 144pixel/m WS2812 strip, 23 pixels
2x Momentary Switch
1x Stereo headphone jack
1x 23mm speaker
1x 20ma DynaOhm resistor
1x DFplayer w/8gb SD card
1x Arduino Nano
1x MPU6050
Voltage divider resistors: 100kohm, 470kohm
various wires