TFA pool thermometer 30.3240.10 #2651

mikaelsundin · 2023-09-30T13:11:15Z

mikaelsundin
Sep 30, 2023

I have started to investigate TFA pool thermometer 30.3240.10.

What i found so far.
The protocol seems to be 36bits payload and repeat 4 times every transmission.

`
SIIIIIIIIXXXX00CCTTTTTTTTTTTT00000000S

I = probably preamble, but can be a ID (someone else need to verify this with another unit)
If the NTC sensor is missing this field changes to S10011100...

XXXX set at startup and seems to be based on selected Channel. (will not change after startup if switching Channel)

CC = Selected Channel
T = 12bit signed integer with scale of 0.1°.

Example Data CH1
S100100000111000011111110110000000000S = -2
S100100000001000000001000101100000000S = 13.9
S100100000001000000001001110100000000S = 15.7
S100100000111000000001110101100000000S = 23.5

Example Data CH1
S100100000111000100001110101100000000S = 23.5
S100100001101000100010000010000000000S = 26.0

The radio protokoll seems to match other TFA 433Mhz sensors.
__ 0 __ 1 __ START/STOP __
_| |_____| |_________| |________________| |_

0: 1500 - 2500 us
1: 3500 - 4500 us
S: 7500 - 9000 us

mikaelsundin · 2023-09-30T20:48:03Z

mikaelsundin
Sep 30, 2023
Author

Arduino code to decode packets
https://github.com/mikaelsundin/homeautomation_tfa_pool_thermometer

0 replies

gdt · 2023-10-02T13:35:04Z

gdt
Oct 2, 2023
Collaborator

It seems you could look at src/devices/tfa* and see if one of them can be adapted to also decode this. (I am assuming the point is to add support to rtl_433!).

2 replies

mikaelsundin Oct 4, 2023
Author

This seems to match the timing.
https://github.com/merbanan/rtl_433/blob/master/src/devices/tfa_pool_thermometer.c

Unsure if correct way is to extend same decoder to accept both 28bits and 36bits.
Both tfa_pool_thermometer.c and 30.3240.10 is a pool thermometer from TFA.

merbanan Oct 4, 2023
Maintainer

The protocol seems to be different. Implement in its own file in that case. It looks like there is no checksum.

merbanan · 2023-10-04T19:20:03Z

merbanan
Oct 4, 2023
Maintainer

Might match the nexus protocol or prologue.

10 replies

wtaferner Aug 2, 2024

Can you grab a sample and upload here as zip to verify the timings? https://triq.org/rtl_433/ANALYZE.html

This flex decoder should work (unclear on packet gaps), can you get data with it? If that works try to reset (battery out/in) a couple of times and record data each time. rtl_433 -R 0 -X 'n=name,m=OOK_PPM,s=2000,l=4000,y=8000,g=8000,r=10000,bits>=36'

Ok, not sure about the upload, but I have done the manual copy & paste with reference temperature and the data seems to have changed accordingly...let me know what I could share additionally 😄

time      : 2024-08-02 17:02:18 -> temperature: 29,1°C
model     : name         count     : 7             num_rows  : 8             rows      : 
len       : 0            data      : , 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000, 
len       : 37           data      : 9020123000
codes     : {0}0, {37}9020123000, {37}9020123000, {37}9020123000, {37}9020123000, {37}9020123000, {37}9020123000, {37}9020123000

time      : 2024-08-02 16:55:25 -> temperature: 29,0°C
model     : name         count     : 7             num_rows  : 8             rows      : 
len       : 0            data      : , 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000, 
len       : 37           data      : 9010122000
codes     : {0}0, {37}9010122000, {37}9010122000, {37}9010122000, {37}9010122000, {37}9010122000, {37}9010122000, {37}9010122000

time      : 2024-08-02 16:53:50 -> temperature: 28,8°C
model     : name         count     : 7             num_rows  : 8             rows      : 
len       : 0            data      : , 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000, 
len       : 37           data      : 9000120000
codes     : {0}0, {37}9000120000, {37}9000120000, {37}9000120000, {37}9000120000, {37}9000120000, {37}9000120000, {37}9000120000


time      : 2024-08-02 16:54:19 -> temperature: 18,8°C
model     : name         count     : 7             num_rows  : 8             rows      : 
len       : 0            data      : , 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000, 
len       : 37           data      : 90300bc000
codes     : {0}0, {37}90300bc000, {37}90300bc000, {37}90300bc000, {37}90300bc000, {37}90300bc000, {37}90300bc000, {37}90300bc000

zuckschwerdt Aug 2, 2024
Collaborator

Thanks! If we check the data in a BitBench it seems shifted by one bit (the temperature does not step in 0.1 C increments).

It appears the start/stop bits are not properly decoded. Can you run rtl_433 -S unknown to get a sample, then zip and upload here (drag'n'drop)? That way we can fine tune the timings to match better.

wtaferner Aug 2, 2024

And to have some weird stuff as well...

time      : 2024-08-02 17:15:55 -> temperature: -47,3°C
model     : name         count     : 7             num_rows  : 8             rows      : 
len       : 0            data      : , 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000, 
len       : 37           data      : 9240e27000
codes     : {0}0, {37}9240e27000, {37}9240e27000, {37}9240e27000, {37}9240e27000, {37}9240e27000, {37}9240e27000, {37}9240e27000

wtaferner Aug 2, 2024

rtl_433 version 23.11 (2023-11-28) inputs file rtl_tcp RTL-SDR SoapySDR
Detached kernel driver
Found Rafael Micro R820T tuner
[SDR] Using device 0: Realtek, RTL2838UHIDIR, SN: 00000001, "Generic RTL2832U OEM"
Exact sample rate is: 250000.000414 Hz
[R82XX] PLL not locked!
Allocating 15 zero-copy buffers
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:22:23
model     : Prologue-TH  subtype   : 9             id        : 13
Channel   : 1            Battery   : 0             Temperature: 30.00 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g001_433.92M_250k.cu8 (69756 samples, 262144 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:22:43
model     : Prologue-TH  subtype   : 9             id        : 1
Channel   : 1            Battery   : 0             Temperature: 30.00 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g002_433.92M_250k.cu8 (204787 samples, 524288 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:22:54
model     : Prologue-TH  subtype   : 9             id        : 13
Channel   : 1            Battery   : 0             Temperature: 30.00 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g003_433.92M_250k.cu8 (69215 samples, 262144 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:23:04
model     : Prologue-TH  subtype   : 9             id        : 1
Channel   : 1            Battery   : 0             Temperature: 30.00 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g004_433.92M_250k.cu8 (201019 samples, 524288 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:23:12
model     : Prologue-TH  subtype   : 9             id        : 2
Channel   : 1            Battery   : 0             Temperature: 30.00 C      Humidity  : 0 %
Button    : 0
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:23:21
model     : Prologue-TH  subtype   : 9             id        : 5
Channel   : 1            Battery   : 0             Temperature: 30.10 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g005_433.92M_250k.cu8 (67119 samples, 262144 bytes)
*** Saving signal to file g006_433.92M_250k.cu8 (323315 samples, 655360 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:23:38
model     : Prologue-TH  subtype   : 9             id        : 1
Channel   : 1            Battery   : 0             Temperature: 30.20 C      Humidity  : 0 %
Button    : 0
*** Saving signal to file g007_433.92M_250k.cu8 (199740 samples, 524288 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:23:47
model     : Prologue-TH  subtype   : 9             id        : 0
Channel   : 1            Battery   : 0             Temperature: 30.30 C      Humidity  : 0 %
Button    : 0



*** Saving signal to file g008_433.92M_250k.cu8 (70764 samples, 262144 bytes)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
time      : 2024-08-02 17:24:09
model     : Prologue-TH  subtype   : 9             id        : 14
Channel   : 1            Battery   : 0             Temperature: 30.40 C      Humidity  : 0 %
Button    : 0

sample_series.zip

Ok, I think, this one should be better...

wtaferner Aug 2, 2024

Hmm, actually it works already I realized...it is exactly the same as Prologue-TH and has no battery, no humidity sensor and also no button...it will change the ID on every reset / battery change.

wtaferner · 2024-07-30T06:52:48Z

wtaferner
Jul 30, 2024

How far are we away to decode this one?
I just bought one and I am eager to contribute the data samples or at least give it a try.

1 reply

zuckschwerdt Jul 30, 2024
Collaborator

We need #2651 (reply in thread)

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TFA pool thermometer 30.3240.10 #2651

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TFA pool thermometer 30.3240.10 #2651

mikaelsundin Sep 30, 2023

Replies: 4 comments · 13 replies

mikaelsundin Sep 30, 2023 Author

gdt Oct 2, 2023 Collaborator

mikaelsundin Oct 4, 2023 Author

merbanan Oct 4, 2023 Maintainer

merbanan Oct 4, 2023 Maintainer

wtaferner Aug 2, 2024

zuckschwerdt Aug 2, 2024 Collaborator

wtaferner Aug 2, 2024

wtaferner Aug 2, 2024

wtaferner Aug 2, 2024

wtaferner Jul 30, 2024

zuckschwerdt Jul 30, 2024 Collaborator

mikaelsundin
Sep 30, 2023

Replies: 4 comments 13 replies

mikaelsundin
Sep 30, 2023
Author

gdt
Oct 2, 2023
Collaborator

mikaelsundin Oct 4, 2023
Author

merbanan Oct 4, 2023
Maintainer

merbanan
Oct 4, 2023
Maintainer

zuckschwerdt Aug 2, 2024
Collaborator

wtaferner
Jul 30, 2024

zuckschwerdt Jul 30, 2024
Collaborator