Linear temperature compensation doesn’t ask a lot.
What is this? Where can you get it?
Measuring the pressure in an LPG bottle tells you nothing about how much liquid is in there. The pressure is constant (for a given temperature) until all the liquid has evaporated.
That’s correct. Measuring pressure you han only detect when tank is almost empty.
I have pressure detection on my underground tank, it gives just margine to call for refill.
I have an actual gas meter with pulse output that I use. Mine reads in CF, but they make ones that measure in liters.
Since I have a 500 gallon tank, measuring the weight would be difficult (and need to meet intrinsic safety standards, since there is some venting of propane when it gets filled). Mine has a remote ready dial on it, but it doesn’t look that accurate.
My meter is not temperature compensated, but a little math can fix that (if I really cared enough to do it again).
I think I’m going with this, using the load cell and amplifier I linked above.
With the 10:1 lever advantage, I’ll be lifting 20kgs for two full bottles and there’ll be an accurate reading.
Using that diagram, if your setup is similar, why cant you just use scales like I linked above? Just curious.
There’s far less hardware in my lift system and I don’t need to lift the bottles onto anything.
Frontend advice
Yea on that note, I have this card that I want to dynamically fill using this integration but having trouble, maybe you could help me out?
The fill area is transparent.
Share your current card code and I’ll see if I can assist. I am fairly fluent in CSS.
Thanks
Well to be fair, I just stole some other code and tried, knowing that it would not work because its not suited for my image.
type: picture-elements
image: /local/images/bottle.png
card_mod:
style:
hui-image $: |
img {
z-index: 1 !important;
position: relative !important;
right: 0px;
top: 0px;
width: 100% !important;
opacity: 1
}
elements:
- type: custom:fluid-level-background-card
entity: sensor.camper_gas_weight_right_bottle_2
style:
z-index: 1
card_mod:
style: |
ha-card {
text-align: center;
--ha-card-border-color: #ff000000 !important;
}
#container, .container {
width: 110px !important;
height: 180px !important;
position: relative !important;
transform: translate(220%, -75%);
opacity: 0.8;
}
@media (max-width: 600px) {
#container, .container {
width: 42px !important;
height: 72px !important;
transform: translate(225%, -74%);
}
}
@media (min-width: 601px) and (max-width: 900px) {
#container, .container {
width: 85px !important;
height: 150px !important;
transform: translate(211%, -70%);
}
}
@media (min-width: 901px) and (max-width: 1440px) {
#container, .container {
width: 52px !important;
height: 82px !important;
transform: translate(220%, -74%);
}
}
tap_action: none
level_color: rgba(0,0,255,1)
card:
type: custom:card-templater
card:
type: entities
entity: sensor.camper_gas_weight_right_bottle_2
title_template: "{{states('sensor.camper_gas_weight_right_bottle_2')|round(0)}}% "
show_header_toggle: false
show_name: true
card:
type: custom:bar-card
color: rgba(0,0,0,1)
position:
value: "off"
card_mod:
style: |
ha-card {
--ha-card-header-font-size: 11px;
height: 225px !important;
}
.card-header {
justify-content: center !important;
}
.name {
overflow: unset !important;
}
Share your basic image and we will adjust as needed. That’s not a big deal.
Examples always help others
Perfect… I can work with that!
1 Like
Thanks for helping! I was not sure how I was going to approach this one.
Give me a day or so. Been up too late tonight 