Bangert 30 1619GJ Andijk
Bangert 30 1619GJ Andijk > RaspBerry 433Mhz Temperature

RaspBerry 433Mhz Temperature

Next project:
TFA 30.3221.02 wireless 433Mhz Temp Humid Sensor                 conrad +/-8.22 to 9.50 Euro
TFA 30.3232.02 same but only Temperature                                    can not find no descent price
in Fridge and Freezer and Outside and more?
Monitor and Log Temperature with RaspBerry Pi Domoticz


TFA 30.3221.02 wireless 433Mhz Temp Humid Sensor                 conrad +/-8.22 to 9.50 Euro
TFA 30.3232.02 same but only Temperature                                    can not find no descent price
think this sensor normally is part off
TFA Spring weerstation



i have also 2 other sensors TFA30.3220.02 only temp
but do not like them so much
        battery cover screwed
        screws of both sensors where overthighted out of factory, so plastic pulled out of thread
and screws have almost no  function anymore
        and -20 says specs my freezer is maybe colder

                  Temperature/humidity Transmitter
                  For wireless transmission of the outdoor climate
                  Also for climate monitoring in distant rooms
                  Measuring range temperature outdoor -40...+60C (-40...+140F)
  2 x AAA 1.5 V battery
                  Maximum range 80 m

433Mhz Temperature Humidity sensor has a nice strong signal
Signal comes out off the Fridge / Freezer verry well 

Has a manual push send button under the battery cover (thats nice for testing)
Has a 3 selector switch for adress





can not get the sensors i have working with the example code i can find

installed pigpio piscope for monitoring scoping gpio pins

some do it with audicaty audio maybe zooming and back forward is easyer in audacity
i only have then minutes experience with this program piscope
   i have no experience with scopes 
   but find this output ammazing

gpio pin 27 its now wpi2 the 433mhz reciever input
with another tfa sensor TFA30.3220.02 only temp 
    this sensor has a nice visual output all highs are the same
i thought the highs make the 0 or 1
but its the length of the valleys that make the 0 or 1  
and the long valley is a begin end?

if anybody is reading my BlahBlahBlah and has answers

screenshot of piscope TFA30.3220.02 
above image should hold a value of i think somewhere in the range 20 to 23 degree celsius  TFA30.3220.02

a long valley = +/- 4000us      another reverseengeneer says sync signal
middle valley = +/-1960us      another reverseengeneer says 1
short valley = +/-990us            another reverseengeneer says 0

i have a constant stream of noise on reciever gpio pin in piscope
first i have to solve that
think its messing up the signal when temp transmitter is further away from reciever

above image should hold a value of i think somewhere in the range 9 to 11 degree celsius  TFA30.3220.02



0010 11101 0000  00011010  0101    1110 0000 000        +/-23?
                              16+8+2=26?            

0010 11101 0000  00001011  0101    1110 0000 000        +/-10?
                                8+2+1=11?

0010 11101 0000  00100011  0001    1110 0000 000         +/-35?
                              32+2+1=35?
 

0010 11101 0001  11110110   0011     1110 0000 000           between frozen bread  ?                                  
                                                  


some things i found on the web maybe helpfull

TFA 433
Use your Arduino to receive temperature and humidity data from TFA remote sensor.

https://manual.pilight.org/protocols/433.92/weather/tfa.html

https://github.com/theos10/TFA_Reader/blob/master/TFA_Reader.cpp




Work in progress
                               under construction
                                                                 tot later


My Domoticz

if anybody is reading my BlahBlahBlah and has answers

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