So i have this sound module “FLR104A-A-V1.4” and it works fine, i can record and play audio with it.

But i am struggling to get the loop function working.

Sadly the Chip dosent have markings on it so i didnt found a datasheet to help.

There is a pad called “Loop” but it dosent seam to do anything, i tryed connecting it to VCC or ground and it dosent make the module loop.

I cant use a NE555 timer to trigger looping via play button because the sounds on it wont be the same runtime every time.

Any ideas?

Update: It may be a ISD1820 style Chip but with 4 min of storage compared to the usual 10-20sec…i cant find anything about it online

Update 2: from the functionality it could be a ISD4003 but it has to few pins for that

Update 3:

After soldering those 2 pins together AND hitting the playbutton it loops. It dosent loop on its own when turned on sadly there is still a initial play button press needed but i think this should be fine for now-

Update 4: Sadly the recording only loops 4 times and then stops again :/

Update 5: Connecting the loop pad to the negative side of the play button seams to send it into a endless loop yay