Instructions | DIY Lerdge USB Bridge

1

Using the arduino in serial bridge mode

Take a short jumper wire or small piece of wire and solder it to the RST and GND pin on the arduino
2

Soldering the Male-Male breadboard jumpers

Solder a wire to each of the following pins on the arduino
TX
RX
VIN
GND
3

Using a empty plastic drink bottle for some insulation

Take a old sprite or coke bottle (450ml one)
Cut it so it is 2CM longer on each side of the arduino
Make sure it is completely dry
Put the arduino inside the bottle
Use a hot air station or flame to shrink the bottle arround the arduino
(Anything can be used or could be left un insulated if needed)
4

Connecting the arduino to lerdge

Take the Male-Male jumper wires on the arduino and connect to the lerdge board as followes:
Left is arduino Right is Lerdge
TX-TX
RX-RX
VIN-5V
GND-GND
5

Connecting to the printer

Use the arduino ide in serial monitor with baud set to 115200
Send M112 command and see if you get a response
If response is not recieved try swapping you're TX AND RX lines
Check again and you should get you're response
Then you can connect using the lerdge pc control software or octoprint or any program of you're choosing
6

DONE

Enjoy you're little DIY project and how you saved roughly 10$ or just wanted a quick and easy project

DIY Lerdge USB Bridge