AVTOKYO 2015 made electrical badge for attendees this year.

Parts list (Recomended mount order)

  • CR2023 battery holder x 1(BT1)

  • Resistor 470 ohm x 8(R1, R2, R3, R4, R5, R6, R7 and R8)

  • Resistor 10k ohm x 3(R9, R10, R11)

  • Crystal 16Mhz x 1(Y1)

  • Capacitor 0.1uF x 2(C1 and C2)

  • Capacitor 22pF x 2(C3 and C4)

  • IC socket 28 pin x 1

  • Push button x 2(SW2, and SW3)

  • LED 5mm x 8(D1, D2, D3, D4, D5, D6, D7 and D8)

  • AT-MEGA328P-PU x 1(IC1)

  • CR2023 battery x 1


  • R9 print on PCB is missing... R9 is next to IC1.

  • IC socket and IC(AT-MEGA328P-PU) have direction. IC’s pin 1 is not suitable toward the Y1

  • LEDs also have directions.

More information

AVT2015 About the Badge.pdf

PCB design


Project member

Design : Emery Premeaux, TokyoHackerSpace

Programing : @mi_kodayo

Project management : Motohiro Matt Nakanishi, AVTOKYO

Special thanks

To TokyoHackerSpace members, friends, especially Yurie and tessy.