Osu Keypad (open source 2 key keyboard)

thingiverse

https://github.com/clay53/Osu-Keypad # Osu!Keypad An open source & cheap 2 key keyboard for playing Osu!. ## Materials * Arduino Pro Micro * $16.89 - [Amazon (fast shipping)](https://www.amazon.com/HiLetgo-Atmega32U4-Bootloadered-Development-Microcontroller/dp/B01MTU9GOB/ref=sr_1_4?dchild=1&keywords=arduino+pro+micro&qid=1595266896&sr=8-4) * $4.06 - [Aliexpress (very slow shopping)](https://www.aliexpress.com/item/32768308647.html?spm=a2g0o.productlist.0.0.36d25a53hhtTTv&algo_pvid=fd09e9d2-8857-4805-a8a8-f03b190efa36&algo_expid=fd09e9d2-8857-4805-a8a8-f03b190efa36-2&btsid=0be3764515952667044068818ec83b&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_) * Key Switches (Any MX style switch should work - default uses Kalih Box Browns) * $3 - [NovelKeys](https://novelkeys.xyz/collections/switches/products/kailh-box-switches?variant=3747940139048) * Self Printing * ~20g PLA * $15.99 ($0.32) - [Amazon](https://www.amazon.com/3D-Solutech-Filament-Dimensional-Accuracy/dp/B00ME7YUIU/ref=sr_1_32?dchild=1&keywords=1kg+PLA&qid=1595267469&s=industrial&sr=1-32) * 3D Printer (Not factored into total) * Electricity * Extremely cheap, literally don't worry about it * Outside printing * $13 - As quoted for PLA by Craftcloud (you can probably find it cheaper somewhere else) * Soldering * Solder (Not factored into total as you should already have this) * $8.89 - [Amazon](https://www.amazon.com/WYCTIN-Solder-Electrical-Soldering-0-11lbs/dp/B071G1J3W6/ref=sr_1_6?dchild=1&keywords=solder&qid=1595267912&sr=8-6) * Soldering Iron (Not factored into total as you should already have this) * $14.99 - [Amazon](https://www.amazon.com/WYCTIN-Solder-Electrical-Soldering-0-11lbs/dp/B071G1J3W6/ref=sr_1_6?dchild=1&keywords=solder&qid=1595267912&sr=8-6) * Flux (Cleaning soldering iron & to dip mechanical switch contacts - not factored as you should already have this) * $1.99 - [Amazon](https://www.amazon.com/SRA-Rosin-Paste-Flux-135/dp/B008ZIV85A/ref=sr_1_2?dchild=1&keywords=flux&qid=1595268099&sr=8-2) * Any at least thin-ish wires (Not factored, you can probably find some) * $5.79 - [Amazon](https://www.amazon.com/EDGELEC-Breadboard-Optional-Assorted-Multicolored/dp/B07GD2BWPY/ref=sr_1_4?dchild=1&keywords=breadboard+wire&qid=1595268351&sr=8-4) * Micro USB Cable (Literally any will work) * $2.99 - [Amazon (kinda sketchy brand but you can always refund)](https://www.amazon.com/Aedggei9-Micro-Cable-Speed-Charging/dp/B07WQ2NB3K/ref=sr_1_6?dchild=1&keywords=micro+usb&qid=1595272264&refinements=p_85%3A2470955011&rnid=2470954011&rps=1&sr=8-6) (Cheapest) Total: $10.37