Raspberrypi RF Dooya Controller

Remote control for Dooya RF curtains using RaspberryPi, including a web server with simple RC UI

Requierments

• A RaspberryPi
• A 433MHz transmitter and receiver modules
• Jumpers wires to connect the transmitter and receiver to the RaspberryPi

Recording RF Signals

The receicer.py module is used to record RF signals from the remote control, in order to reuse it later

• Requires pyplot (sudo apt-get install python-matplotlib)

Translating the Data:

• The receiver code samples the physical receiver for a configured period of time (RECORDING_DURATION, in seconds).
• Both the reciever and the transmitter are using GPIO pin 23, this arbitrary choice can be changed and it migth be helpful to use different pin for each module for testing both components together.
• After finished sampling, a plot will be created, in which the signals transmitted are shown.
• Each code starts with a long signal, and after it 40 shorter signals
• Long on and short off will be translated to 1
• Short on and long off will be translated to 0
• Each code will be repeated several times (to ensure the product will success recognizing it)
• The last 8 digits of the code are specifiying the action:
• 00011110 = Up
• 00110011 = Down
• 01010101 = Stop
• In the DC2702 RC, the 4 digits before the action (digits 29-32) denoting the selected channel number on the RC (e.g.: 0001 for 1, 0010 for 2)
• Code example: 11010000110110100000110011000001101010101 - will trigger Stop on channel 6 (so it is enough to record one signal from the original RC in order to recreate everything)

Transmitting RF Signals

Transmitting the RF recorded signals is acheived by the transmitter.py module.

• transmitter.py can be tested by passing in CLI by passing the required codes as arguments (e.g. python transmitter.py example)
• Timings provided were measured by using the reciever.py module, and can be changed for different use cases
• Both the reciever and the transmitter are using GPIO pin 23, this arbitrary choice can be changed and it migth be helpful to use different pin for each module for testing both components together.
• Available codes are on the KNOWN_CODES dictionary
• Each code will be transmitted multiple time (as much as set in NUM_ATTEMPTS)

Web Server

Notes:

• Set the server URL in templates/index.html and templates/multi.html (default to 127.0.0.1)
• Triggering multiple requests fast will cause some errors, due to the lack of synchronization mechanism

UI

There are 2 HTML pages available:

1. templates/index.html (route: /) - this page provides a simple UI, similar to Dooya DC2700 Remote Control
2. templates/multi.html (route: /multi) - this page provides a similar UI, with an addidion of select component to support multi-channels, similar to Dooya DC2702 Remote Control

• It is possible to use multi.html page as a single RC for multiple products

API

• /ctrl?name={name} - used to trigger the transmitter to transmit the requested code using the name query parameter