1. Download and install python
Download link: https://www.python.org/downloads/windows/
Now Download the latest version Windows installer (I used 3.9.9 64-bit.
Click the Add Python xx to PATH.. this will save you time when you need to execute a python command.
then press install now. (wait until the installer is finished)
2. Install ESPhome
Open the start menu and type CMD. Then press Enter or click the command prompt app.
then paste this into the command prompt:
pip3 install esphome
Press Enter and the installer will start.
3. Start an Open Duco project
In the same command window type:
esphome wizard open_duco_mini.yaml
This will show you the wizard of ESPhome 😉 It will ask you to select a name, type:
open_duco_mini Press Enter.
Now it will ask you for your wifi SSID. Type your WI-FI SSD. Afther that it will ask for you WI-FI password. Enter your password. if it asks for an OTA password just press enter
If this is done it will create a file called open_duco_mini.yaml
Open that file with a text editor. You can find the file here : C:\Users\(your username)
Below Captive_protal paste the following code:
uart: rx_pin: GPIO25 tx_pin: GPIO26 baud_rate: 9600 i2c: - id: bus_a sda: GPIO19 scl: GPIO18 scan: false frequency: 400kHz - id: bus_b sda: GPIO16 scl: GPIO4 scan: false frequency: 400kHz output: - platform: ledc pin: GPIO15 id: open_duco_mini_fan fan: - platform: speed output: open_duco_mini_fan name: "Open Duco Mini speed" sensor: - platform: pulse_counter pin: GPIO14 unit_of_measurement: 'RPM' name: 'Open Duco mini RPM'
Now press CTRL+S (or save the file) and close the document.
4. Upload your Open Duco Project
Make sure you install CP2102 Windows 10 driver (https://www.silabs.com/documents/public/software/CP210x_Windows_Drivers.zip). (if you use my programmer)
in the command line type:
esphome run open_duco_mini.yaml
This will take a couple of minutes. Make some coffee or drink some tea 🙂
(when it seem stuck, press enter, somehow it started working after I pressed it a couple of times)
(if you have the programmer connected and the drivers installed)
Now it should show:
Then Press the number where the CP210X corresponds to (in my case 1) Then press enter again.
When it says connecting press the program button on the Open Duco Mini. While pressing the program button press Reset once (while holding the program button)
It should start updating 🙂
(when its done uploading the software, press reset once)
Now open Home Assistant and you will see that home assistant found a new device 😀