Shutters automation for usage with Somfy Remote

This project is a simple automation to control shutters with a Somfy Remote. It uses a Raspberry Pi Pico and a modified Somfy Remote to control the shutters.

Hardware

• Raspberry Pi Pico W
• Somfy Remote (modified)

Hardware modifications

For modifying the Somfy Remote, you need to solder a wire to the PCB of the remote. There are a few debug pads on there, which are easy to solder to.

Pad Name on Remote	Pin Number on Pi Pico
UP	26 - GPIO 20
MY	25 - GPIO 19
DOWN	24 - GPIO 18
PR	22 - GPIO 17
GND	23 - GND

Software

The software is written in MicroPython. The code in the micropython directory is the code that runs on the Raspberry Pi Pico W.

Dependencies

• Microdot
• Microdot-async
• mcron
• sched

Installation

1. Install MicroPython on the Raspberry Pi Pico W
2. Add config file
3. Copy the content of the micropython directory to the Raspberry Pi Pico W

Configuration

The configuration file is located at micropython/config.py. The file should contain the following content:

WIFI_SSID = "<SSID>"
WIFI_PASSWORD = "<PW>"

Replace <SSID> with the SSID of your WiFi network and <PW> with the password of your WiFi network.

Usage

The Raspberry Pi Pico W will connect to the WiFi network and start a web server. You can access the web server by navigating to the IP address of the Raspberry Pi Pico W in your web browser. The web server will show a simple interface to control the shutters.

The Pico will also start a cron job to close the shutters sunset, opening is not implemented, because you can open the shutters with the remote or your phone.

Manual control with the web interface

The web interface will show a simple interface to control the shutters. You can open, stop and close the shutters with the buttons. It also shows the current state of the shutters, the current time and the time of the sunset and sunrise.

Manual control with your phone

To control the shutters with your phone, you can use the app HTTP Request Shortcuts.

• Open: http://<IP-Address>/raise
• Stop: http://<IP-Address>/stop
• Close: http://<IP-Address>/lower

Replace <IP-Address> with the IP address of the Raspberry Pi Pico W.

Then you can add these URLs to the app and create a shortcut on your home screen to control the shutters with your phone.