English
EspaƱol
yt_link
insta_link
fb_link
twitter_link
ADVERTISERS
PCBWAY PCB Manufacturing

PCBWAY Christas PCB Manufacturing

Advanced PCB Manufacturing
Advanced PCB Manufacturing





AFFILATE










Gearbest Creality3D CR - 10S 3D Printer - EU Plug Upgrade Version Coffee and Black
Creality3D CR - 10S 3D Printer - EU Plug Upgrade Version Coffee and Black only $$352.94

Gearbest Creality 3D Ender-3 V-slot Prusa I3 DIY 3D Printer Kit 220 x 220 x 250mm Printing Size - EU Plug Black
Creality 3D Ender-3 V-slot Prusa I3 DIY 3D Printer Kit 220 x 220 x 250mm Printing Size - EU Plug Black only $$153.84

Gearbest Alfawise U20 Large Scale 2.8 inch Touch Screen DIY 3D Printer - EU - U20 EU Plug Black
Alfawise U20 Large Scale 2.8 inch Touch Screen DIY 3D Printer - EU - U20 EU Plug Black only $$253.39


Full part list (Arduino based RPM meter)



IR LED and senosr: LINK eBay
Arduino NANO: LINK eBay
LM324 amplifier: LINK eBay
Push button: LINK eBay
Slide button: LINK eBay
OLED screen: LINK eBay
30AWG wire: LINK eBay
Cheap lser diode: LINK eBay
9V battery connector: LINK eBay
9V battery: LINK eBay
drilled PCB: LINK eBay



Arduino rpm meter full parts