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This is a network bandwidth meter, it is made from a good quality mbed, a good quality Futuba VFD display, a good quality programmable 32 rgb led strip, a fairly decent home made PCB, a poor quality bodged together laser cut acrylic lid, and a bad quality bodged together wooden case.

It has a 2nd hand 5V 5Amp PSU.

It is connected to Tesla via usb. The code needs to be written for it to use ethernet directly.

pics of build

Code now on github:

and the mbed code is here:

New mbed code, now works over ethernet!