I've aquired myself a speak and math.
I'm sure most of you guys have done one of these before. If so, could you give me some advice where to start.
I powered it up and pressed my thumb across the bottom of the resistors near where the wires are connected from the battery supply. When I do this the pitch goes down and the unit speaks in slow motion.
Can I capture this and manipulate it with a pot or something.
I also started going about the solder points with an open ended wire and found some buzzes from the first IC, but haven't got around to going around the whole board to check what happens.
Any advice would be appreciated.