40oz
drop leg
lvndmark
3d print lego
aeropress cold brew
shadowspire
hamster feeder
nylon filament print
m134 minigun airsoft
ball clock
fallout 3 combat shotgun
halo arbiter armor
beaver
mazda rx7 fd
siegward
delta wing
buff
raspberry pi arcade cabinet
nfls
keychain ninja
g man
dxf file
router template
miniature furniture
fx air rifle
Free
Thingiverse
OpenSourceClassroom
3DX PIR Motion Sensor Alarm
This was fun Using a PIR to detect motion Red and Green status LEDs Piezo buzzer for audible alert and an LCD screen to display messages about alarm status ...
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