RelCon housing - ESPHome based WLAN capable relay card - STL files


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🌟 RelCon 16-channel WLAN relay card with rotary encoder and TFT display! 🌟 Erlebe die ultimative Kontrolle mit unserer innovativen “RelCon” 16-Kanal WLAN Relaiskarte! Diese einzigartige Relaiskarte bietet nicht nur 16 Schaltkanäle, sondern auch eine Fülle von Funktionen, die sie zur perfekten Wahl für deine automatisierten Projekte machen.

Key features:

WiFi control: Operate the relay card wirelessly via WiFi, enabling easy control and monitoring from a distance.
Rotating encoder control: Integrated rotary encoder for local manual settings and adjustments directly on site.
HomeAssistant compatibility: Thanks to ESPHome, seamless integration with HomeAssistant for advanced control and automation.
TFT display: The integrated TFT display shows the current switching status of all relays at a glance.
USB-C power supply: Simple and universal power supply via a USB-C port.
ESP32 with ESPHome Firmware: The “RelCon” relay card uses a powerful ESP32 chip and is equipped with the reliable ESPHome firmware.

Application examples:
🏡 Smart home automation: Integrate the “RelCon” relay card into your smart home system for comprehensive automation.
🔧 Industrial controls: Use the 16-channel functionality for industrial control applications.
📶 Remote controlled circuits: Switch devices and systems remotely with Wi-Fi functionality.

Easy configuration:

  1. Connect power supply: Simply connect the RelCon card via the USB-C port.
  2. Set up WiFi: Configure the WiFi connection for wireless control.
  3. Integrate HomeAssistant: Easy remote control by integrating the card into your HomeAssistant system.
  4. Use rotary encoder: Adjust settings locally on the device using the integrated rotary encoder.

How does it work?

  1. Purchase the STL file: After purchasing, you can download the files directly from our online shop.
  2. Print your housing: Use a 3D printer to produce the housing. You can choose the material and color to suit your taste.
  3. Assembly: Follow the instructions to assemble the housing.

Please note: No physical components will be sent. You will receive the files in STL format and must print them out on a 3D printer in order to build the project.

This offer contains the STL files you need to print the 3D printable components for the RelCon Project needed.

  • You will soon find further information on the assembly and other components required in the assembly article. It will be linked here as soon as it is published.
  • Observe the safety instructions linked below during assembly and use: Click here
  • To build the complete RelCon Additional components are required for the project. A complete list of the required parts can be found in the assembly article.

Required tool:

Number Link
1x Screwdriver set  Buy at Amazon
1x Soldering iron  Buy at Amazon

Required material:

Number Link
1x LILYGO ESP32 T-Display Modul  Buy at Amazon
1x Rotary encoder  Buy at Amazon
1x MCP23017 Port Expander  Buy at Amazon
1x 16 Kanal Relais-Modul 5V  Buy at Amazon
1x Voltage Step Converter MT3608  Buy at Amazon
11x M2x8 countersunk screw  Buy at Amazon
4x M3x10 countersunk screw  Buy at Amazon
11x M2 thread insert  Buy at Amazon
6x  M3 thread insert  Buy at Amazon
1x [amazon link=”B098WVHH5L” title=”USB-C Kabel 5V/3A” link_icon=”amazon” /] Buy at Amazon
1x USB power supply 5V/3A  Buy at Amazon
1x  No products found. No products found.


3D printing information

  • Filament type: e.g: PLA
  • Layer thickness: 0.2mm
  • Infill: 15%
  • Wall lines: 2

ESPHome example configuration

You can find an example configuration for ESPHome under the following link:


No videos are available yet.


File list

  • base_plate_lid_X.stl
  • base_plate_X.stl
  • led_cover_X.stl
  • programming_port_cover_X.stl



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