Does anyone recognize the type of connectors used for the Arduino connections in the key pad module?
I believe they are JST
To be precise I think they are “Micro JST SH” connectors. The size should be 1mm high, commonly used for RC projects. I’ll see if I can measure it with a caliper.
I think the battery connector has a different pitch than the other mainboard and keypad connectors. So JST SH might still be valid.
I didn’t notice the pitch difference!
I think you are correct on the sizing