>working on my own eSIM implementation
Please tell me you are serious about this. Tried looking into this earlier and found out that eSIM is extra proprietary, which means no hobby devices, like those 3G/4G/GSM connectivity Arduino modules.
Please tell me you are serious about this. Tried looking into this earlier and found out that eSIM is extra proprietary, which means no hobby devices, like those 3G/4G/GSM connectivity Arduino modules.
https://www.gsma.com/esim/esim-specification/
In addition you can get ST micro data sheets for full blown electrical and mechanical data sheets for free