I have created this service definition in ESPHOME. The lambda statements that set the ranges work perfectly but not having any success from the colour settings. I am trying to setup a visual temperature scale where the colour attempts to represent the temperature, so blue being cooler and red being hotter.
When I set the temperature to 40 I would expect the lambda statement to return a value of 1 for the red colour. But nothing turns on. When I get rid of the lambda statement and hardcode the value 1, it works.
Any ideas?
- service: disp_temperature
variables:
temperature: int
then:
- light.addressable_set:
id: fastled_clockless_led
range_from: 0
range_to: 90
red: 0%
green: 0%
blue: 0%
- light.addressable_set:
id: fastled_clockless_led
range_from: !lambda 'if (temperature >= 0) {return (40 - temperature);} else {return (40);}'
range_to: !lambda 'if (temperature >= 0) {return (40);} else {return (40 + (temperature * -1));}'
red: !lambda 'if (temperature >= 0) {return (temperature / 40);} else {return (0);}'
green: !lambda 'if (temperature >= 0) {return (0);} else {return ((50 * (temperature * -1 / 30))/100);}'
blue: !lambda 'if (temperature >= 0) {return (1 - (temperature / 40));} else {return ((50 * (temperature * -1 / 30))/100);}'
- light.addressable_set:
id: fastled_clockless_led
range_to: !lambda 'if (temperature >= 0) {return (40 - temperature);} else {return (40);}'
range_from: !lambda 'if (temperature >= 0) {return (40);} else {return (40 + (temperature * -1));}'
red: 0%
green: 0%
blue: 0%
KTibow
December 28, 2020, 6:04pm
2
First of all, so we can read your code, please edit it so the if statements are on multiple lines.
Hopefully this is more clear. As I mentioned the coding for the ranges work fine it’s the colour that is not.
- service: disp_temperature
variables:
temperature: float
then:
- light.addressable_set:
id: fastled_clockless_led
range_from: 0
range_to: 90
red: 0%
green: 0%
blue: 0%
- light.addressable_set:
id: fastled_clockless_led
range_from: !lambda
'if (temperature >= 0) {
return (40 - temperature);
} else {
return (40);
}'
range_to: !lambda
'if (temperature >= 0) {
return (40);
} else {
return (40 + (temperature * -1));
}'
red: !lambda
'if (temperature >= 0) {
return (temperature / 40);
} else {
return (0);
}'
green: !lambda
'if (temperature >= 0) {
return (0);
} else {
return ((50 * (temperature * -1 / 30))/100);
}'
blue: !lambda
'if (temperature >= 0) {
return (1 - (temperature / 40));
} else {
return ((50 * (temperature * -1 / 30))/100);
}'
- light.addressable_set:
id: fastled_clockless_led
range_to: !lambda
'if (temperature >= 0) {
return (40 - temperature);
} else {
return (40);
}'
range_from: !lambda
'if (temperature >= 0) {
return (40);
} else {
return (40 + (temperature * -1));
}'
red: 0%
green: 0%
blue: 0%
KTibow
December 28, 2020, 9:49pm
4
If you use ESP_LOGD with formatting, what shows up?
Now you exceeded my knowledge. How would you suggest I use that? I did a search and could find any good examples to provide guidance.
KTibow
December 29, 2020, 12:06am
6
I added in the logging statements to see if the IF statements evaluated correctly. Here’s what I got. I am not sure how to show the result of the return statement.
- service: disp_temperature
variables:
temperature: float
then:
- light.addressable_set:
id: fastled_clockless_led
range_from: 0
range_to: 90
red: 0%
green: 0%
blue: 0%
- light.addressable_set:
id: fastled_clockless_led
range_from: !lambda
'if (temperature >= 0) {
ESP_LOGD("custom", "temperature 1 %f", temperature);
return (40 - temperature);
} else {
return (40);
}'
range_to: !lambda
'if (temperature >= 0) {
return (40);
} else {
return (40 + (temperature * -1));
}'
red: !lambda
'if (temperature >= 0) {
ESP_LOGD("custom", "temperature 2 %f", temperature);
return (temperature / 40);
} else {
return (0);
}'
green: !lambda
'if (temperature >= 0) {
return (0);
} else {
return ((50 * (temperature * -1 / 30))/100);
}'
blue: !lambda
'if (temperature >= 0) {
return (1 - (temperature / 40));
} else {
return ((50 * (temperature * -1 / 30))/100);
}'
- light.addressable_set:
id: fastled_clockless_led
range_to: !lambda
'if (temperature >= 0) {
return (40 - temperature);
} else {
return (40);
}'
range_from: !lambda
'if (temperature >= 0) {
return (40);
} else {
return (40 + (temperature * -1));
}'
red: 0%
green: 0%
blue: 0%
[10:09:20][C][logger:185]: Logger:
[10:09:20][C][logger:186]: Level: DEBUG
[10:09:20][C][logger:187]: Log Baud Rate: 115200
[10:09:20][C][logger:188]: Hardware UART: UART0
[10:09:20][C][light:178]: Light 'Front Door Light Strip'
[10:09:20][C][light:180]: Default Transition Length: 1.0s
[10:09:20][C][light:181]: Gamma Correct: 2.80
[10:09:20][C][captive_portal:169]: Captive Portal:
[10:09:20][C][web_server:131]: Web Server:
[10:09:20][C][web_server:132]: Address: 192.168.1.244:80
[10:09:20][C][ota:029]: Over-The-Air Updates:
[10:09:20][C][ota:030]: Address: 192.168.1.244:8266
[10:09:20][C][ota:032]: Using Password.
[10:09:20][C][api:095]: API Server:
[10:09:20][C][api:096]: Address: 192.168.1.244:6053
[10:09:22][D][api.connection:604]: Client 'Home Assistant 2020.12.0 (192.168.1.105)' connected successfully!
[10:10:14][D][custom:468]: temperature 1 10.000000
[10:10:14][D][custom:476]: temperature 2 10.000000
KTibow
December 29, 2020, 3:17pm
8
Looks like you passed a temperature of 10, which resulted in it setting the red to 0.25. Is that what you expected?
Yes, as I understand you can pass a percentage or a value to the colour. So .25 should be equivalent to 25% (as is my reasoning).
Got that from here.
red ( Optional , percentage, templatable ): The red channel of the light. Must be in range 0% to 100% or 0.0 to 1.0 . Defaults to not changing red.
KTibow
December 29, 2020, 6:04pm
10
What happens to the light strip? Nothing?
Nothing! As I mentioned if I hardcode the value to a 1 it works.
KTibow
December 29, 2020, 6:08pm
12
What if you hardcode it to 0.25?
Tried a couple of things;
red: !lambda return (1);
No result.
red: 1
Works correctly.
red: !lambda return 1;
No result.
It’s like the return is not working for colours but works in the range to and from.
KTibow
December 29, 2020, 6:30pm
14
What about red: "1"? What about red: !lambda 1?
The ESPHOME editor says that lambda is expecting a return statement so that is not a valid syntax.
KTibow
December 29, 2020, 6:41pm
16
What about the first one?
That fails on a compile error.
INFO Reading configuration /config/esphome/frontdoorledstrip.yaml...
ERROR Error while reading config: Invalid YAML syntax:
while parsing a block mapping
in "/config/esphome/frontdoorledstrip.yaml", line 75, column 13:
id: fastled_clockless_led
^
expected <block end>, but found '<scalar>'
in "/config/esphome/frontdoorledstrip.yaml", line 91, column 29:
red: !lambda "1";
KTibow
December 29, 2020, 6:44pm
18
Not !lamba "1", just hardcoded "1".
KTibow
December 29, 2020, 6:48pm
20
What if you use !lambda return "1"?