rflink-alt
Alternative software for the rflink tranceiver (based on Arduino Mega and the Aurel RTX MID 5V "NODO shield")
Gateway software Currently working on software providing the gateway functionality like managing devices. This is being written in Python so that it can run al all kind of platforms: raspberry / linux / mac / windows / whatever. Any help developing this will be highly appreciated! Currently working on support for Somfy RTS. Check out: https://github.com/hardcodedpassword/RFLink-alt-Gateway
Major goal: increased flexibility and open source The firmware will not support the RFLink Serial protocol. Instead it will be a 'transparent' interface, sending received pulses to the host and the host can send pulse buffers to RFLink-alt to be transmitted. By this design the RFLink-alt does not have knowledge of the various 433MHz protocols. It will be the responsibility of the host to parse received pulse sequences and construct pulse sequences that can be transmitted. Normally the host is a PC or raspberry platform that is much more capable of performing such tasks. This allows also easy capturing and retransmission of sequences and makes copying of remotes easy.
The host interface is realized by the Arduino Mega its usb serial port interface. The commands and responses are human readable. Note: the serial port baudrate must be set to 57600.
** RECEIVING: **
- When the RFLink-alt has received a valid pulse sequence it will send the pulse sequence to the host.
- RfLink-Alt -> Host messages starting with "r:" are received pulses:
- r:[number of pulses]:[pulse length],[pulse length],[pulse length],[pulse length],
- e.g.:
- "r:21:20,40,20,40,20,40,20,40,20,40,20,40,20,40,20,40,20,40,40,20,40\n"
- All PUSLE LENGTHs are in units of 10us!!
** TRANSMITTING: **
- Host -> RfLink-alt starting with "t:" are pulses to transmit:
- t:[number of repeats],[delay between repeats],[pulse length],[pulse length]
- example pulses to send:
- "t:10,40,35,35,70,70,35,35,70,35,35,70,70,35,70,70,35,70,35,70,70,35,35,70\n"
- All PUSLE LENGTHs are in units of 10us
- The delay between repeats is in milliseconds
- Do NOT use zeros (Serial.parseInt() limitation)!!
TODOs: *** For consistency, the delay between repeats should be in same unit as the pulses.
Changes:
- decreased MIN_PULSE_TIME from 100 to 90 us.
- implemented interpreter for sending pulses
- removed test code
V0.0.3:
- Added version number, added code comments, some minor changes
- fixed receive bug
- decreased MIN_PULSE_TIME from 90 to 85 us
V0.0.4:
- Minor improvement throughout the code
- Allow to receive shorter messages, now 15 pulses will be accepted
- Allow longer pulse times