Summary

This is a remix to fit with Heltec V3 (USB-C), with external antenna, more space for a battery, slider power switch, no screws needed and thin walls

OnShape Link: https://cad.onshape.com/documents/9fd20e753956b94340d7ef75/w/1cabec6b6e86f445550ad621/e/ff3b851b1ae64520ba05213e?renderMode=0&uiState=65b2cb3d169b9915c755bc13