getting_started_prebuild_pcbs.md

Getting started with prebuilt PCBs

If you bought a prebuilt PCB, you can follow this step-by-step guide to set up your HCP-Bridge with your Hörmann garage door.
These instructions focus on the Gifford47 PCB version, but the process is very similar for all other board versions.

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🔌 Installing Sensors

If you want to connect temperature sensors or any other sensors, follow these steps carefully:

1. Solder pin headers to the dedicated sensor pads on the Gifford47 PCB.
   Make sure the pins are properly aligned and the solder joints are clean and solid.
2. Attach the sensors to the corresponding pin headers according to the pinout.
3. Reinstall the PCB into your SupraMatic unit.
4. Enable the sensors in the Web UI under Sensor Configuration — tick the sensor you connected, check its GPIO pins and save. The device restarts and the sensor appears in the status area and in Home Assistant.

⚠️ Note: There are no separate firmware variants for sensors any more. Older releases had …a (without sensors) and …b (with sensors) binaries — since the sensors became configurable in the Web UI there is one firmware per board: HCP_Giffordv2-vX.Y.Z.bin or HCP_Giffordv3-vX.Y.Z.bin. If you are still running an a/b build, update via OTA Update in the Web UI.

🔘 Using the In1 / In2 / Out1 / Out2 terminals

Next to the sensor pads the PCB has four extra screw terminals. They are plain 3.3 V ESP32 GPIOs (the HCP mini does not have them):

• In1 / In2 — ≈5 V signal inputs (fixed 1.2 kΩ / 2.2 kΩ divider on the board), not dry-contact inputs. A push button must therefore switch 5 V onto the terminal; the on-board 2.2 kΩ pulls the input low again when it is released. Never apply 12 V or 24 V. Each input can trigger a local action such as toggle light or impulse, and shows up in Home Assistant as a binary_sensor.
• Out1 / Out2 — high-side switches (optocoupler-driven MOSFET). Switched on they source the voltage set by the 5V | – | 3V jumper, switched off they are high impedance. Use them for PLC inputs, active-high relay module inputs or logic inputs; never to drive a load directly. Each output shows up as a Home Assistant switch.

Both are disabled by default and are enabled in the Web UI under I/O Configuration.

➡️ Full details, wiring diagrams, limits and examples: Digital Inputs & Outputs

What you need

• Prebuild PCB with HCPBridge Firmware installed (installed out of the box on gifford PCBs)
• USB-C power supply (PCB-Revision >=3)
• Optional: 3.3V power Supply (min. 500mA) if you want to test the board standalone

Initial configuration

1. Connect the PCB to power via the USB-C connector/ 3.3V power supply and wait a few seconds. the LED will be lit.

2. Search and connect to the WIFI Network called "HCPBRIDGE" the PCB creates with a phone or pc.

3. When connected, open a webbrowser and go to the WEBUI under the following url : http://192.168.4.1

4. Open the "Basic Configuration" tab and enter your WIFI and MQTT credentials, then click save.

Note: The wifi password has to be ASCII chars between ASCII 32-126.

Tip: To disable the wifi AP just uncheck the "Enable wifi AP" checkbox and save

5. The PCB should now be connected to your wifi. You can now check if it is reachable from your home network and if it connected to your MQTT Server.

Installation

1. connect the PCB with a RJ12 cable to the BUS port on your Hörmann garage door motor (image below, see green arrow).

2. Figure out how to execute a bus scan on your model, see info below or have a look in your motors ueer manual.

ProMatic Serie 4

Use the bottom dip switch (see image above, blue arrow) and toggle it, this will start the buss can.

SupraMatic E/P Serie 4

Use the Buttons to navigate to the menu 37 and excecute the Bus Scan, see here: Tor7.de - Supramatic Bus Scan

3. execute a bus scan on your garage door motor, this should make the PCB light up (3V3) and blink rapidly (RS485 module)

4. if the bus scan was succesfully you can connect to the WEBUI and control your garage door motor, it should look like in the image below.