Yes that is true. The end user will not access the connector. However, its not only the end user this protection should be aimed against. As the assembly house should be an ESD-friendly place, its not always the case. A survey from the EOS industry c...

Opto-isolation would be overkill for sure i think. The actual distance is about 7cm, and the trace distance of the SDA and SCL lines are about 6-7cm. The other traces are about 10cm long They share the same power supply and ground, yes.The radio is 2...