i turned the pot down ok then i turned the witch on with normal used batteries then the sound stopped but when i turn it higher the sound starts now i turned it down and no sound at all
It seems like there is either a bad connection somewhere or your inductor is screwed.
Also, did you try changing batteries? If not try some energizer/Duracell batteries, If the sound goes away with those then invest in a 18650 cell (if your enclosure can fit it) and leave it at that. The way I see it, it seems like your batts are sagging in voltage and therefor your driver is being stressed.
If the problem persists, buy a 100mA linear driver and two lithium ion cells. Will be cheaper than another micro boost and it will give you the benefit of being rechargeable.
yea im glad but im gonna build a 1W so i need the micro boost drive and i found an heatsink that slips on the aixiz module also i need thermal paste and a good host and glass lens and im done ohh about the battery i use 2 AA battery holders so can i use the 18650 cell?
can i solder the case pic to the negative pin because i i cant solder the care pin to the null i have to bend it all the way and it will touch the other pins, will it work?