How do I install a Wi-Fi module on my Creality Ender 3 3D printer

[Truman]

Installing a Wi-Fi module on your Creality Ender 3 allows for wireless control and monitoring of your 3D printer. Here's a step-by-step guide:

1. Safety First: Ensure your Ender 3 is completely powered off before you begin the installation process.
2. Wiring Connections: The Wi-Fi module's wires connect to your printer's motherboard in a specific sequence. Common wire colors and their corresponding functions are:
   • Red: 5-12 VDC (Power)
   • Blue: GND (Ground)
   • White: TX -> RX (Transmit to Receive)
   • Black: RX -> TX (Receive to Transmit)
3. Module Connection: Locate the TFT socket on your Ender 3's motherboard and carefully plug in the Wi-Fi module's connector.
4. Power Up: Connect your Ender 3 to a power source and turn it on.
5. Initial IP Address: Once the printer's operating system starts, the LCD screen will display an IP address, typically something like 192.168.0.1. Take note of this.
6. Network Connection: On your computer or mobile device, open your Wi-Fi settings.
7. Select Network: Choose the network broadcast by your 3D printer (it's often labeled something like "3D Printer").
8. Enter Password: The default password for this network is usually 12345678.
9. Configuration Page: You should be automatically redirected to a configuration page. If not, open a web browser and enter the IP address displayed on your printer's screen (e.g., 192.168.0.1) in the address bar, then press Enter.
10. Language & Firmware: Select your preferred language and then choose the firmware type installed on your Ender 3. If you're using the factory firmware, select "Repetier." If you've updated the firmware, select the appropriate option (Marlin is common).
11. Baud Rate: Set the baud rate to the same value you use when connecting via USB. The default is typically 115200.
12. ESP Name: Give your ESP (Wi-Fi module) a name. Something like "Ender" works well.
13. Operating Mode: You'll have two operating mode options:
    • AP Mode: Creates its own wireless network. Your printer won't be visible on your home network in this mode. You'll need to connect directly to the printer's network and set a new password.
    • STA Mode: Allows you to connect your printer to your home Wi-Fi network. Click the magnifying glass icon to search for your network, enter your home Wi-Fi password, and then click "Set."
14. Restart: After configuration, restart your Ender 3. Power it off completely, wait about 30 seconds, and then power it back on.
15. Connection Confirmation: The LCD screen will display "connection in progress." A successful connection is confirmed when the screen displays an IP address assigned by your local DHCP server.
16. Connect to Home Network: Connect your computer to your home Wi-Fi network.
17. Access Printer Control: In your web browser, enter the IP address displayed on your Ender 3's LCD screen to access the printer control panel.

Important Note: These instructions are based on common practices, but always refer to your Creality Ender 3's manual for the most accurate and up-to-date information. Incorrect modifications can potentially damage your printer.