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In Piso wifis there is this bug they so called "ghost coins" many builders thought that this is just an issue on power supply and that's true in some cases but most of them aren't aware.. this also occured because they use the ESP8266 / NODEMCU as sub vendo...
How this happened?
ESP8266 has very small memory size (under 1mb).. so it's easy to purposely crash it.. by crashing.. it triggers BOD (brownout reset) and also current spikes (sudden voltage rise) since it is connected to coinslot it could trigger "false coin pulse" when coinslot is open or active.. while it crashed and that's what i did in the video.. i wrote a script that automatically press the insert coin btn to subvendo then crash/generate spikes via http packets towards sub vendo...
Possible fixes is proper power management for esp8266 or just use other chip like orangepi or raspberry.
(I don't know electrical things)
does this possible to trigger on orangepi / raspberry pi based? yes but only if has sub vendo or multi coinslot cuz you can make the other vendos handle the "false coin pulse"
This was posted for awareness..
Video Proof of Concept on LPB pisowifi with subvendo (PoC): You do not have permission to view the full content of this post. Log in or register now.
Screenshot:
(Btw I accept donations XD)
Tested against: LPB, PisoFi, ADO
How this happened?
ESP8266 has very small memory size (under 1mb).. so it's easy to purposely crash it.. by crashing.. it triggers BOD (brownout reset) and also current spikes (sudden voltage rise) since it is connected to coinslot it could trigger "false coin pulse" when coinslot is open or active.. while it crashed and that's what i did in the video.. i wrote a script that automatically press the insert coin btn to subvendo then crash/generate spikes via http packets towards sub vendo...
Possible fixes is proper power management for esp8266 or just use other chip like orangepi or raspberry.
(I don't know electrical things)
does this possible to trigger on orangepi / raspberry pi based? yes but only if has sub vendo or multi coinslot cuz you can make the other vendos handle the "false coin pulse"
This was posted for awareness..
Video Proof of Concept on LPB pisowifi with subvendo (PoC): You do not have permission to view the full content of this post. Log in or register now.
Screenshot:
(Btw I accept donations XD)
Tested against: LPB, PisoFi, ADO
Nag share ka pero di mo nmn nilapag script ano yan nakaw vids mo lang

