This board will remove drawback found in previous board and will improve the performance to do more.
High voltage (220V) relay module get separated from main board for safety, Relay module will be put in the switch box.
A buzzer was added to pin number 23.
ESP 32 power up using 3.3 V LDO that separately connected to battery charging module.
Logic level converter HV side powered up with 5.0 V.
Several output pins have been changed as follows
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