This tutorial may be outdated. It is no longer recommended for beginners, and may need modifications to code or hardware that is not indicated in the tutorial.

Parts List

Parts List

Check to make sure your kit comes with the following parts. Sometimes we make mistakes so double check everything and email [email protected] if you need replacements!
Picture Name Description More information Quantity


IC1 Microcontroller (pre-programmed when purchased in a kit)

Note: this is shipped in the battery holder
ATtiny2313V-10PU 1


IC1* 20 Pin Socket

Note: this is shipped in the battery holder
Generic 1


R10 R11 R12 1/4W 5% 4.7K resistor (yellow purple red) Generic 3


R1-R9 1/4W 5% 100 ohm (brown black brown) Generic 8


D1 D2 D3 5.6V Zener diode 1N5232B 3


U1 2 AA Battery Case with switch MPD SBH-321AS 1


D1-8 Red LED 5mm red diffused 8


X1 DB-9 female connector w/solder cup Norcomp 171-009-203L001 1


PCB Silkscreened PCB Adafruit 1
This guide was first published on Jul 17, 2013. It was last updated on Jul 17, 2013. This page (Parts List) was last updated on May 18, 2019.