graph LR A[Serial] B[USB] C[GCode Parser] D[Stream] E[Command] F[System] G[Telnet] H[WebUI] I[WebUI WebSocket] K[WebSocket] M[SD Card] D-->|S|B D-->|S|A H-->|S|D G-->|S|D K-->|S|D M-->|S|D E-->|R|I F-->|R|I A-->|R|C B-->|R|C E-->|R|K E-->|R|G E-->|R|K E-->|R|G F-->|R|K F-->|R|G F-->|R|K F-->|R|G C-->|R|D C-->|R|G C-->|R|I C-->|R|K