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Tachograph VU connector
Tachograph vehicle unit download connectorOther
A permissive Free Software license that lets this work be widely shared with few restrictions.
These are pretty much impossible to get hold of. This design uses a standard 3x2 Dupont shell and three female pins to break out GND, TXD and RXD to give a standard TTL (5V) serial port for the loadvu script or any other software which communicates over serial.
Pinout (viewed from end of connector):
GND 1 o o 2 NOC
NOC 3 o o 4 NOC
TXD 5 o o 6 RXD
Materials and methods
Any filament will do. The STL results in a small slot at the pin 1 arched end when sliced with 0.4mm nozzle settings - this is fine and makes assembly of the Dupont connector much easier. Print connector end up.
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