Ghostbusters PKE Meter for Arduino

thingiverse

This is my modification of the awesome PKE Meter by hobbyman. https://www.youtube.com/watch?v=xTfZLYqommg My changes were done to accommodate the electronics and simplify the design for my 7-year-old son. I scaled up the whole model to 110% added a screen holder for a 0.96" Inch LCD LED Module 128X64. I removed the top three buttons and designed it around a 2-button input method for kids. I also modified the battery area to accommodate 4 AAA's to power all of this since it was scaled up, and the area was too big now. No button pressed, it is in the idle state. When button one is pressed and held, it is at 50%, and button two at 100%. This has worked very well for my son. The electronics are based on an Arduino Nano with a custom PCB fabricated by OshPark. You can find the Arduino code, PCB schematic, and BRD files in my GitHub repo here: https://github.com/CountDeMonet/Arduino_PKE_Meter The full parts list includes: - An Arduino nano clone - A Buck converter to power the servo at 5v - Diymall 0.96" Inch Yellow Blue I2c IIC Serial Oled LCD LED Module - A micro servo of your choosing, I used a bluebird that I had laying around - Cheaper to get the rest in a starter kit from Amazon; I used: -- Two buttons -- Seven 220ohm resistors -- A buzzer - Fourteen 3mm Yellow LED's I bought a ton of led's a while back for other projects - One on/off switch, I ripped out of one of my son's dead toys I printed mine at .3mm resolution with a 20% infill with supports. This print requires a lot of supports but it is worth it. I wish I would have printed at .2mm resolution but my prototype has become the one my son will use. I have included the buttons_filled.3mf file in case you need to adjust the spacing for the buttons. I built my own input board for two standard buttons from an Arduino kit. If you choose something else, you can modify this file to work with it. Update 8/18/2017 I needed a belt holder for the meter so I modified Daniel Nelms' design to fit this one and reduced it in size a bit.