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How to setup Wi-Fi (MINI/MINI+)

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How to setup Wi-Fi (MINI/MINI+)

How to setup Wi-Fi (MINI/MINI+)
Relevant for:
Last updated 21 days ago
How to setup Wi-Fi (MINI/MINI+)
 Difficulty
Easy
 Steps
20
 Available languages
CSDEESFRITJAPL

Step 1 Introduction

Introduction
Introduction
Introduction
WARNING: The feature is currently in beta stage and recommended to experienced users only. Please read the instructions first!!!
This guide will take you through the Wi-Fi module installation and configuration on the Original Prusa MINI/MINI+.
Because this is a testing version, we recommend you write down your current Live adjust Z value, as a precaution. Visit the printer's menu and go to Calibration -> Live adjust Z.

Step 2 Purchasing Wi-Fi (ESP) module

Purchasing Wi-Fi (ESP) module
Purchasing Wi-Fi (ESP) module
In order to make the Wi-Fi work, you must purchase ESP Wi-Fi module. Specifically ESP-01S or ESP-01, which is based on the ESP8266.
It is recommended to buy the version with 1 MB of flash memory or more.
There are multiple manufactures of the Wi-Fi module. Before you make your purchase, you can check the reviews in this table maintained by the community.

Step 4 Opening the electronics

Opening the electronics
Opening the electronics
Opening the electronics
Unplug the printer from the power supply to prevent any damage!
Release and remove the M3 screw on top of the electronics box.
Remove the printed cable cover.

Lift the electronics cover slightly. Then pull it to the front and remove it from the printer.

Step 5 Checking the electronics

Checking the electronics
Checking the electronics
Wi-Fi feature is supported across all revisions of the Buddy control board. However, please note the version number onto a piece of paper. Let us know this detail in case you have any issues.
Take a closer look at the Buddy control board to see which version you have.

Step 6 Removing the power switch

Removing the power switch
Removing the power switch
Removing the power switch
Removing the power switch
ATTENTION: Removing the power switch might require patience due to tighter print tolerances. Take your time and be careful. Googles are recommended!
There are two safety latches on the sides of the power switch. Use the Allen key to push the first latch from the "USB side".
While pressing the latch, push the "USB side" of the power switch out of the box.
Push on the power switch and tilt the side with the pressed latch out.
Push the second latch on the other side of the power switch.
Pull the power switch out of the box.
You can also use needle-nose pliers to squeeze the latches.

Step 7 Removing the power switch

Removing the power switch
Removing the power switch
Push the power cables through the hole out of the electronics box. Leave it free. This will prevent the cables from interfering with the ESP module during the installation.

Step 8 Installing the ESP module: parts preparation

Installing the ESP module: parts preparation
Installing the ESP module: parts preparation
Installing the ESP module: parts preparation
For the following steps, please prepare:
ESP Wi-Fi module (1x)
It is recommended to use ESD (Electrostatic discharge) gloves. Always grab the ESP module by its edges!
USB drive (1x) with at least 10 MB of free space.

Step 9 Installing the ESP module

Installing the ESP module
Installing the ESP module
Installing the ESP module
Installing the ESP module
Locate the 8-pin header connector on the Buddy control board.
Plug the ESP module into the 8-pin header. See the correct orientation in the picture.

Step 10 Connecting the power switch

Connecting the power switch
Connecting the power switch
Connecting the power switch
Push the power cables back into the electronics box.
Make sure that the OFF "o" symbol is on the right.
Insert the switch into the opening in the box while holding the edges of the box until the switch clicks in.

Step 11 Covering the electronics

Covering the electronics
Covering the electronics
Covering the electronics
Covering the electronics
Before covering the electronics, make sure the square nut is correctly positioned in the printed part. The nut must not fall out! This can cause fatal damage to the electronics.
Insert the cover back in, make sure it is properly seated in the holes.
Place the second cover on the top and arrange the cables:
Extruder bundle, ensure the textile sleeve is partially in. Also, it must be tilted away from the printer.
Heatbed bundle, ensure the textile sleeve is partially inside the box.
Filament sensor cable (optional), ensure that the textile sleeve wrapped around the cables is partially inside the box.
Now, tighten the cable cover. Check that no cable is pinched.

Step 12 Flashing new bootloader and firmware

Flashing new bootloader and firmware
Flashing new bootloader and firmware
Flashing new bootloader and firmware
Flashing new bootloader and firmware
Wi-Fi runs on firmware 4.4.0 or higher.
Connect the USB drive to PC.
Copy firmware files downloaded from GitHub release.
Save BOTH files (.bbf extension) on the USB drive.
Connect the USB drive to the printer.
Connect printer to the power supply and turn it ON.
Confirm the update by selecting the FLASH button on the screen.

Step 13 Flashing new bootloader and firmware

Flashing new bootloader and firmware
Flashing new bootloader and firmware
Confirm the update by selecting the FLASH button. Both bootloader and firmware will flash automatically.
Wait until the process is completed. It will take several minutes, several restarts, because multiple flashing stages are necessarry. Please be patient!!!
Do not remove the USB flash drive during the installation! This can fatally damage the electronics.
Keep the USB drive connected to the printer.

Step 14 Setting up the Wi-Fi module

Setting up the Wi-Fi module
Setting up the Wi-Fi module
Setting up the Wi-Fi module
Setting up the Wi-Fi module
Do not disconnect the USB drive from the printer until prompted.
Upon restart you should be greeted with Wi-Fi wizard. If not, please follow the procedure described in this step.
On the LCD screen navigate to Home -> Settings -> Network -> Wi-Fi -> Setup Wi-Fi module.
A link with a QR code to this manual appears on the screen. Click on Continue.

Step 15 Setting up the Wi-Fi module

Setting up the Wi-Fi module
Setting up the Wi-Fi module
Setting up the Wi-Fi module
The printer will now update the Wi-Fi module firmware.
Do not unplug Wi-Fi or turn off the printer!
The update may take several minutes. Please wait until it is complete.
After a successful update, click Continue.

Step 16 Setting up the Wi-Fi module

Setting up the Wi-Fi module
Setting up the Wi-Fi module
Setting up the Wi-Fi module
Setting up the Wi-Fi module
In this step, the printer creates the necessary configuration files on the USB drive. Click on Continue.
The config files are created on the USB drive. Click on Continue and disconnect the USB drive from the printer.

After the next screen appears, leave the printer as it is for now. We must set up the config file first. Go to the next step.

Step 17 Editing the configuration file

Editing the configuration file
Editing the configuration file
Editing the configuration file
Connect the USB drive to PC.
Locate the prusa_printer_settings.ini file on the USB drive created by the printer. Open the file in any text editor.
Go to the second line named ssid= and write down the name of the Wi-Fi network you want to connect your printer to.
Now, go to the fourth line named psk= and write down the Wi-Fi password. Make sure nobody is watching!
Save the file on the USB drive.
Please note that "MINI FARM" and "12356" are just examples, your settings will differ.

Step 18 Finishing the Wi-Fi settings

Finishing the Wi-Fi settings
Finishing the Wi-Fi settings
Finishing the Wi-Fi settings
Finishing the Wi-Fi settings
Return to the printer. Connect the USB drive into it and click on Continue.
Wait until the files are copied from the USB drive to the printer. Do not disconnect the USB drive while copying.
Once the credentials are uploaded, it might take up to several minutes to connect the printer to the network. Especially with weak signal or in crowded networks. Please be patient or move the printer closer to your Wi-Fi access point.
As soon as the Wi-Fi is connected successfully, you will be informed. Click on Continue.

Step 19 It's done!

It's done!
It's done!
After successful setup and established connection, you will see a bright Wi-Fi icon in the top status bar of the display.
Success!!! Now you can copy G-codes from your computer via PrusaSlicer or PrusaLink web interface.
Follow instructions in the next step to obtain printer's IP address and API-key.

Step 20 Getting the IP and API-key

Getting the IP and API-key
Getting the IP and API-key
Getting the IP and API-key
To connect PrusaSlicer with your printer or enter the web interface (PrusaLink), you can have to know printer's IP address and API-key.
On the screen, navigate to Home -> Settings -> Network, there is a IP address of your printer.
From the Network menu, navigate to PrusaLink. There is a Current API Key line. Write down the API key (for example NqgYusKEYymmmwS).
Write the IP address to the URL bar open in any browser on your computer.
Type the API Key when prompted.
You will see the PrusaLink dashboard with informations about your printer.
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