no curly quotes in my config… double checked.
off for some time now, will come back later
Looks good to me but I don’t have access to such an object to test.
I think you will just have to wait for the OP’s feedback
You and @Tediore (& Marius & the OP (I’d also like to thank, the producers, the make-up artists, my parents and of course the caterers 
) ) have done brilliantly so far, I’ve learnt a lot, thanks
1 Like
ok its just that I see this:
in your post quoting me 
Id give this a try:
{{ (state_attr('sensor.sensor_name', 'system')['L_ambient']) |float /10 | round(2) }}
1 Like
Ehh… I don’t think I’ve actually been helpful this time around lol.
I did my best 
No the 10 will get rounded, you need a bracket
yes I stand corrected…
I moved the closing bracket because of the same reason one otherwise |int 's the ‘L_ambient’. Which in second view might be correct after all…
always difficult to keep the full view when not having the actual entity in the system yourself…
{{ ((state_attr('sensor.sensor_name', 'system')['L_ambient']) |float /10) | round(2) }}
which might be the same as
{{ (state_attr('sensor.sensor_name', 'system')['L_ambient'] |float /10) | round(2) }}
Hey I’m just shouting from the sidelines, you guys are doing the work.
I’m on my phone without a jinja interpreter so all I can do is cheer !
(and pass on my attempts at humour)
Please see the full data entity below. Maybe this can help in testing and many thanks to all supporters upfront!!
Ralf
{
"system":{
"system_info":"system global variables",
"L_ambient":{"val":"104", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_errors":{"val":"0", "factor":"1", "min":"-32768", "max":"32767"},
"L_usb_stick":{"val":"false", "format":"0:Aus|1:Ein"}
},
"weather":{
"weather_info":"current weather data",
"L_temp":{"val":"80", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_clouds":{"val":"75", "unit":"%", "factor":"1", "min":"-32768", "max":"32767"},
"L_forecast_temp":{"val":"90", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_forecast_clouds":{"val":"87", "unit":"%", "factor":"1", "min":"-32768", "max":"32767"},
"L_forecast_today":{"val":"true", "format":"0:Heute|1:Morgen"},
"L_starttime":{"val":"910", "factor":"1", "min":"-32768", "max":"32767"},
"L_endtime":{"val":"1500", "factor":"1", "min":"-32768", "max":"32767"},
"L_source":{"val":"http://www.openweathermap.org", "length":"20"},
"L_location":{"val":"Dieblich|Germany|2886968", "length":"20"},
"cloud_limit":{"val":"55", "unit":"%", "factor":"1", "min":"0.0", "max":"100.0"},
"hysteresys":{"val":"-40", "unit":"K", "factor":"0.1", "min":"-200.0", "max":"0.0"},
"offtemp":{"val":"-100", "unit":"?C", "factor":"0.1", "min":"-300.0", "max":"200.0"},
"lead":{"val":"120", "unit":"min", "factor":"1", "min":"0.0", "max":"600.0"},
"refresh":{"val":"false"},
"oekomode":{"val":"1", "format":"0:Aus|1:Ein"}
},
"forecast":{
"forecast_info":"date|temp|cloud|speed|image|code|unit[|sunrise|sunset] code see https://openweathermap.org/weather-conditions",
"L_w_0":{"val":"Mi, 27 Nov 09:20|8|75|26 km/h|10d|500|C|08:02|16:33", "length":"20"},
"L_w_1":{"val":"Mi, 27 Nov 07:00|8|100|13 km/h|10n|500|C", "length":"20"},
"L_w_2":{"val":"Mi, 27 Nov 10:00|9|100|11 km/h|10d|500|C", "length":"20"},
"L_w_3":{"val":"Mi, 27 Nov 13:00|11|100|16 km/h|10d|500|C", "length":"20"},
"L_w_4":{"val":"Mi, 27 Nov 16:00|9|100|12 km/h|10d|500|C", "length":"20"},
"L_w_5":{"val":"Mi, 27 Nov 19:00|9|100|17 km/h|10n|500|C", "length":"20"},
"L_w_6":{"val":"Mi, 27 Nov 22:00|9|100|18 km/h|10n|500|C", "length":"20"},
"L_w_7":{"val":"Do, 28 Nov 01:00|10|100|22 km/h|10n|500|C", "length":"20"},
"L_w_8":{"val":"Do, 28 Nov 04:00|9|100|25 km/h|10n|500|C", "length":"20"},
"L_w_9":{"val":"Do, 28 Nov 07:00|9|100|20 km/h|10n|500|C", "length":"20"},
"L_w_10":{"val":"Do, 28 Nov 10:00|9|100|22 km/h|10d|500|C", "length":"20"},
"L_w_11":{"val":"Do, 28 Nov 13:00|9|100|23 km/h|10d|500|C", "length":"20"},
"L_w_12":{"val":"Do, 28 Nov 16:00|9|99|18 km/h|10d|500|C", "length":"20"},
"L_w_13":{"val":"Do, 28 Nov 19:00|8|100|16 km/h|10n|500|C", "length":"20"},
"L_w_14":{"val":"Do, 28 Nov 22:00|8|100|13 km/h|10n|500|C", "length":"20"},
"L_w_15":{"val":"Fr, 29 Nov 01:00|8|100|15 km/h|10n|500|C", "length":"20"},
"L_w_16":{"val":"Fr, 29 Nov 04:00|8|100|15 km/h|10n|500|C", "length":"20"},
"L_w_17":{"val":"Fr, 29 Nov 07:00|6|100|15 km/h|10n|500|C", "length":"20"},
"L_w_18":{"val":"Fr, 29 Nov 10:00|5|100|15 km/h|10d|500|C", "length":"20"},
"L_w_19":{"val":"Fr, 29 Nov 13:00|6|100|15 km/h|04d|804|C", "length":"20"},
"L_w_20":{"val":"Fr, 29 Nov 16:00|5|92|14 km/h|04d|804|C", "length":"20"},
"L_w_21":{"val":"Fr, 29 Nov 19:00|3|70|13 km/h|04n|803|C", "length":"20"},
"L_w_22":{"val":"Fr, 29 Nov 22:00|2|0|10 km/h|01n|800|C", "length":"20"},
"L_w_23":{"val":"Sa, 30 Nov 01:00|2|16|7 km/h|02n|801|C", "length":"20"},
"L_w_24":{"val":"Sa, 30 Nov 04:00|2|93|6 km/h|10n|500|C", "length":"20"}
},
"hk1":{
"hk_info":"heating circuit data",
"L_roomtemp_act":{"val":"0", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_roomtemp_set":{"val":"235", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_flowtemp_act":{"val":"476", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_flowtemp_set":{"val":"482", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_comfort":{"val":"0", "unit":"K", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_state":{"val":"32", "factor":"1"},
"L_statetext":"Heizbetrieb aktiv",
"L_pump":{"val":"true", "format":"0:Aus|1:Ein"},
"remote_override":{"val":"0", "unit":"K", "factor":"0.1", "min":"-32768", "max":"32767"},
"mode_auto":{"val":"1", "format":"0:Aus|1:Auto|2:Heizen|3:Absenken"},
"time_prg":{"val":"0", "format":"0:Zeit 1|1:Zeit 2"},
"temp_setback":{"val":"160", "unit":"?C", "factor":"0.1", "min":"100.0", "max":"400.0"},
"temp_heat":{"val":"235", "unit":"?C", "factor":"0.1", "min":"100.0", "max":"400.0"},
"temp_vacation":{"val":"150", "unit":"?C", "factor":"0.1", "min":"100.0", "max":"400.0"},
"name":{"val":"", "length":"20"},
"oekomode":{"val":"3", "format":"0:Aus|1:Komfort|2:Minimum|3:?kologisch"},
"autocomfort":{"val":"-1", "format":"0:Aus|1:Ein|2:Morgens|3:Abends"},
"autocomfort_sunset":{"val":"0", "unit":"min", "factor":"1", "min":"-120.0", "max":"120.0"},
"autocomfort_sunrise":{"val":"0", "unit":"min", "factor":"1", "min":"-120.0", "max":"120.0"}
},
"ww1":{
"ww_info":"domestic hot water data",
"L_temp_set":{"val":"350", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_ontemp_act":{"val":"829", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_offtemp_act":{"val":"829", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_pump":{"val":"false", "format":"0:Aus|1:Ein"},
"L_state":{"val":"8200", "factor":"1"},
"L_statetext":"Zeit au?erhalb Zeitprogramm|Anforderung Aus",
"time_prg":{"val":"0", "format":"0:Zeit 1|1:Zeit 2"},
"sensor_on":{"val":"0", "format":"0:WW|1:TPO|2:TPM|3:SpUnten"},
"sensor_off":{"val":"0", "format":"0:WW|1:TPO|2:TPM|3:SpUnten"},
"mode_auto":{"val":"1", "format":"0:Aus|1:Auto|2:Ein"},
"mode_dhw":{"val":"1", "format":"0:Aus|1:Auto|2:Ein"},
"heat_once":{"val":"false", "format":"0:Aus|1:Ein"},
"temp_min_set":{"val":"400", "unit":"?C", "factor":"0.1", "min":"80.0", "max":"800.0"},
"temp_max_set":{"val":"650", "unit":"?C", "factor":"0.1", "min":"80.0", "max":"800.0"},
"name":{"val":"", "length":"20"},
"smartstart":{"val":"0", "unit":"min", "factor":"1", "min":"0.0", "max":"90.0"},
"use_boiler_heat":{"val":"0", "format":"0:Aus|1:Ein"},
"oekomode":{"val":"0", "format":"0:Aus|1:Komfort|2:Minimum|3:?kologisch"}
},
"pe1":{
"pe_info":"pellematic data",
"L_temp_act":{"val":"735", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_temp_set":{"val":"700", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_ext_temp":{"val":"-32768", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_frt_temp_act":{"val":"1168", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_frt_temp_set":{"val":"80", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_br":{"val":"false", "format":"0:Aus|1:Ein"},
"L_ak":{"val":"false", "format":"0:Aus|1:Ein"},
"L_not":{"val":"true", "format":"0:Aus|1:Ein"},
"L_stb":{"val":"true", "format":"0:Aus|1:Ein"},
"L_modulation":{"val":"0", "unit":"%", "factor":"1", "min":"-32768", "max":"32767"},
"L_uw_speed":{"val":"100", "unit":"%", "factor":"1", "min":"-32768", "max":"32767"},
"L_state":{"val":"5", "format":"0:Dauerlauf|1:Start|2:Zuendung|3:Softstart|4:Leistungsbrand|5:Nachlauf|6:Aus|7:Saugen|8:! Asche !|9:! Pellets !|10:Pell Switch|11:St?rung|12:Einmessen|13:1|14:1|15:1|16:1|17:1|18:1|19:1|20:1|21:1|22:1|23:1|24:1|25:1|26:1|27:1|28:1|29:1|30:1|31:1|32:1|33:1|34:1|35:1|36:1|37:1|38:1|39:1|40:1|41:1|42:1|43:1|44:1|45:1|46:1|47:1|48:1|49:1|50:1|51:1|52:1|53:1|54:1|55:1|56:1|57:1|58:1|59:1|60:1|61:1|62:1|63:1|64:1|65:1|66:1|67:1|68:1|69:1|70:1|71:1|72:1|73:1|74:1|75:1|76:1|77:1|78:1|79:1|80:1|81:1|82:1|83:1|84:1|85:1|86:1|87:1|88:1|89:1|90:1|91:1|92:1|93:1|94:1|95:1|96:1|97:Aus|98:Aus|99:Aus|100:Aus|101:Aus"},
"L_statetext":"Nachlauf",
"L_type":{"val":"6", "format":"0:PE|1:PES|2:PEK|3:PESK|4:SMART V1|5:SMART V2|6:CONDENS|7:SMART XS|8:SMART V3|9:COMPACT|10:AIR"},
"L_starts":{"val":"6376", "factor":"1"},
"L_runtime":{"val":"6469", "unit":"h", "factor":"1"},
"L_avg_runtime":{"val":"60", "unit":"min", "factor":"1"},
"L_uw_release":{"val":"650", "unit":"?C", "factor":"0.1", "min":"-32768", "max":"32767"},
"L_uw":{"val":"100", "unit":"%", "factor":"1", "min":"-32768", "max":"32767"},
"L_storage_fill":{"val":"0", "unit":"kg", "factor":"1"},
"L_storage_min":{"val":"400", "unit":"kg", "factor":"1", "min":"0.0", "max":"4000.0"},
"L_storage_max":{"val":"6000", "unit":"kg", "factor":"1", "min":"150.0", "max":"30000.0"},
"L_storage_popper":{"val":"0", "unit":"kg", "factor":"1", "min":"-32768", "max":"32767"},
"storage_fill_today":{"val":"0", "unit":"kg", "factor":"1", "min":"-32768", "max":"32767"},
"storage_fill_yesterday":{"val":"0", "unit":"kg", "factor":"1", "min":"-32768", "max":"32767"},
"mode":{"val":"1", "format":"0:Aus|1:Auto|2:Ein"}
},
"error":{
}
}
Did you try the last suggestion I posted? If yes and it did not work, could you please post the log.
value_template: "{{ (state_attr('sensor.sensor_name', 'system')['L_ambient'] | int) *0.1 | round(1) }}"
does not give any error when checking the config but the sensor state is marked as unavailable
Dumb me, had to change the sensor name before restarting 
just one issue with the rounding due to missing brackets.
This is the final solution and working !
value_template: "{{ ((state_attr('sensor.oekofen', 'system')['L_ambient'] | int) *0.1) | round(1) }}"
Thanks Burningstone!!
1 Like
Er I think that was corrected by marius.
Burning gave you 98% of the solution based on their combined contributions.
Why would you mark your own post as the solution?
Extend that ethos and every thread on the forum would be solved by the OP
Some times all I need from a thread is a suggestion to read a particular section of documentation.
I give the credit to the guy who gave me the clue
Edit: Another benefit of this is that people need to read the thread, understand its content and how it is to be implemented. This has multiple benefits as people learn more and can do more as a result, or just learn to frame their question properly and also saves us from people who just blythely cut and paste code and then winge when it doesn’t do what THEY wanted it to do in a completely different scenario.
2 Likes
Sorry Mutt, I did not want to offend anybody. And you are absolutely right, the right solution came from Burningstone, even without the full dataset for testing! And, yes, the missing brackets were mentioned by marius!
I just meant to mark the right solution for everybody to make it easily retrievable, did not want to get any credit for that!
Appologies to all helping brains!!