Prusa MK2 MK3 Watch Dog Smoke Detector Fire Saftey Device R3

Prusa MK2 MK3 Watch Dog Smoke Detector Fire Saftey Device R3
detects small smoke and cuts down power to prevent fire, sends you push notification over WIFI / internet .

ATTENTION: HIGH VOLTAGE, DANGER 220V !
Make only if you are confident in electronics, I dont take any responsability !
Print it from PETG (felxibile enough, self extiungiushing material)

Source code: https://github.com/birtalanelod/prusa_watchdog
in action : https://www.youtube.com/watch?v=es5MKhtdTas

BOM:

ESP D1 mini
SHARP GP2Y1014AU0F
Hi-link 5V ac-dc adapter
1 Channel 5V Relay Module for Arduino with Optocoupler
220V conncentor , cables
Neopixel WS2810 LED

Updtate:
R3: easyer to be assembled but KNOWN ISSUE : note Z axis movemnt is reduced to 180mm, it will crash above this into sensor

R4 : much smaller, 1 neopixel, no button , sensor moved to backside all 210mm z is available

Print instructions

PETG 0.2 detail, 3 perimeters , 10mm brim for A , no suports, 35%, rectl infill or just use gcode