Replacement controller board for Record Power AC400 air filtering system.
Original board has very simplictic power supply that tends to overheat and burn that makes the use of the device hindered or not possible.
This is Arduino based drop-in replacement board that doesn't have this problem and also allows customizations.
Ready for installation to Record Power AC400 air filtration unit:
The PCB and Schematic .json files can be opened and viewed with EasyEDA online