I needed hook to hang bags or tools to my aluminum ladders. Ladder tube is rectangle profile roughly 19x40mm.
Hook is made to simply snap on the side of ladder tube. It is not meant to hold substantial height but it can do well for what I need it.
There are two models, one solid and one using less material. Solid one can hold larger weight.
Download models
https://www.printables.com/model/460131-aluminum-ladder-hook
https://www.thingiverse.com/thing:5985486 […]
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It is common need to send data read from sensor or states of device to some remote location, like web site or database. ESPHome allows doing that, and it works pretty well, once you find out how to do it.
For sending data, you can use HTTP GET or POST method. As data usually has some complexity, I prefer using POST and send all info as JSON structure. That is universal way.
First thing you have to use is to include http_request component into code:
http_request: id: http_request_data useragent: esphome/device timeout: 10s
You have to set id for component so you can access it later. […]
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There is option to assign project name and version in ESPHome device config. Values are displayed in log when device is powered up. It is useful to have those information as sensors so it is easy to check them, if needed. Here is how.
How to set project name and version:
esphome: name: "my_device" project: name: "Me.MyProject" version: "0.1.0"
And now create Text Sensors:
text_sensor: - platform: template name: "Project" lambda: |- return to_string(ESPHOME_PROJECT_NAME); - platform: template name: "Version" lambda: |- return to_string(ESPHOME_PROJECT_VERSION);
I like to use substitutions as it let’s me put all configuration at the beginning of the yaml and reuse values where needed. […]
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ESPHome Select command allows creating entity that has several optional values, allowing one of them to be selected. Unfortunately it is not well documented, so new users have hard time to make it work.
One would expect that Select component should work as simple as setting up options, and that is it. It should set status based on selection on it’s own. but it does not work that way.
After some struggle I finally got it working and here I am making note (mostly to myself) how to do it, as I am sure I would need it again.
select:
- platform: template
name: Mode
id: mode
options:
- "OFF"
- "ON"
- "AUTO"
initial_option: "OFF"
optimistic: true
set_action:
- logger.log:
format: "Selected option: %s"
args: ["x.c_str()"] […] I like Sonoff Basic R2 Smart Home Switch as it is low priced but very functional multipurpose device. Most of all, it contains ESP8266 chipset which means it is easy to replace original firmware with custom one. I use ESPHome firmware but Tasmota is also good.
By looking at the board of this little device I found out that it contains two-colored LED. Actually, two LED-s are in one package with three contact legs. Green LED is used in factory assembly, and it is connected to GPIO13. The second LED is red colored and not used. It is actually meant to be used by optional RF module. […]
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I got myself ESP8266 Wireless module NodeMCU development board with CP2102 serial chip . It was advertised as original and with least problems of all NodeMCU versions.
I had nothing but problems trying to flash it with ESPHome Flashing Wizard (trying Tasmota was no better). Actually, issues were linked to CP2102 serial chip. One PC could not even recognize it when connected to USB. Other two did, but only after manual persuasion. And even than, flashing did not go through.
I finally managed to flash firmware by avoid using CP2102 at all and accessing ESP8266 chip directly. As I had other serial adapter, based on FT232RL FDTI232 USB to serial adapter I use for flashing ESPHome firmware to Sonoff devices, I build new adapter cable to connect it to ESP8266 bypassing serial interface on NodeMCU board. […]
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