Here is a link to the chip that handles the volume in these speakers: documentation.renesas.com/eng/products/a... There is a very good post on correcting issues with the volume, you may find this informative: fixya.com/support/t226848-ada745_speaker....
This is the circuit I am using
. I can’t really hear much amplification of the sound, anyone have the same issue? Also I was trying to swap the 10K V resistor for an LDR, so the volume would raise and lower with the influence of a LED brightness attached to a PWMOUT of the picaxe chip.I wired this circuit as I thought but it didn’t work. Does anyone know how to do this? And perhaps give me a circuit diagram?
At present the volume control of the 10K V resistor from min volume to max volume is only active over a very small amount of the 0 – 10K movement, over about 60ohms. This doesn’t feel right.
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