I'm trying to find the components of the PCB I have. I have a problem with a 5 pin (SOT23-5) component. Can someone help me with this?
There are version1, version2 and version3 of the PCB and marking codes are AA43, AA44 and AACB respectively.
There is a reset button and an error switch on the board. I measured the voltage values when I pressed any of them (see schematic.)