thfischer/rc-switch-64bit

Arduino lib to operate 433/315Mhz devices like power outlet sockets.

rc-switch fork for TFA Dostmann 30.3249.02 (thermo/hygrometer)

The signal of the sensor:

1. 3 sync pulses (735µs high and 735µs low)
2. 40 or 41 bit message payload
3. 3 sync pulses
4. repeated message … (repeats up to 3 times)
   
   

rc-switch Modifications:

Since the original rc-switch supports only 32 bit messages this fork supports 64 bit messages because the TFA Dostmann 30.3249.02 sends data with either 40 or 41 bit.

The original rc-switch expects one sync pulse with a minimal duration of 4300 µs. But this sensor sends 3 short sync pulses (see above). Therefore additional modifications were necessary in the handleInterrupt() routine.

Tested with an Arduino Mega 2560 and a Wingoneer RXB6 433Mhz Receiver

Wiring:

Arduino <-> 433MHz Receiver
     5V     +5V
    GND     GND
      3     DATA

Programming

1. Download this repository into a folder named rc-switch-64bit.
2. Open rc-switch-64bit.ino with Arduino IDE, compile and upload it to the Arduino
3. Open a Serial Monitor

Serial monitor output (around every 50 sec):

Id: 47
Battery: OK
Sent: Auto
Channel: 1
Temperature: 22.0 °C
Humidity: 51 %
Unknown Data: 186

The text below is the original README.md from the forked rc-switch repository

rc-switch

Use your Arduino or Raspberry Pi to operate remote radio controlled devices

Download

https://github.com/sui77/rc-switch/releases/latest

rc-switch is also listed in the arduino library manager.

Wiki

https://github.com/sui77/rc-switch/wiki

Info

Send RC codes

Use your Arduino or Raspberry Pi to operate remote radio controlled devices. This will most likely work with all popular low cost power outlet sockets. If yours doesn't work, you might need to adjust the pulse length.

All you need is a Arduino or Raspberry Pi, a 315/433MHz AM transmitter and one or more devices with one of the supported chipsets:

• SC5262 / SC5272
• HX2262 / HX2272
• PT2262 / PT2272
• EV1527 / RT1527 / FP1527 / HS1527
• Intertechno outlets
• HT6P20X

Receive and decode RC codes

Find out what codes your remote is sending. Use your remote to control your Arduino.

All you need is an Arduino, a 315/433MHz AM receiver (altough there is no instruction yet, yes it is possible to hack an existing device) and a remote hand set.

For the Raspberry Pi, clone the https://github.com/ninjablocks/433Utils project to compile a sniffer tool and transmission commands.