esphome-fan-controller VS home-assistant-glow

Actually now that you mention it, I have PWM controlled LED strips that don't fail. I was just making life too complicated, I found a ESP32 based code for PID controlled cooling with automatic fan adjustment etc https://github.com/patrickcollins12/esphome-fan-controller and went to adapting it for ESP8266, ds18b20 etc. The UI was super unresponsive and kept dropping off so I cut out code until it was just a dumb fan controller with temperature and PWM. It is true that PC fans sound terrible with 1khz pwm. I dropped it down to about 60hz and put on a capacitor to get rid of the buzzing. Negative side effect is it spins faster but just decrease the speed. It was fine after I took out the smarts then let home assistant control it based on temperature but then it just dropped off leaving me with a overheating NAS.

Build instructions and more details here: https://github.com/patrickcollins12/esphome-fan-controller 3

Seconding this. I was able to just run it with docker compose on a cheap mini PC and it chugs away happily, interfacing with all manner of devices (Phillips/Lifx/IKEA/Airpurifier/Bunnings brands). Only gets tricky to set up devices when you're dealing with some hostile cloud based gadget that doesn't want to play nice.

Unbelievable it can all be controlled offline using Siri on an iPhone, or other voice assistants.

It can even display your electricity consumption by counting the LED pulses on your smart electricity meter that fires every 1000th of a kw/h, only takes a cheap ESP32 and a photodiode: https://github.com/klaasnicolaas/home-assistant-glow

Such a wonderful project.

You want to build this https://github.com/klaasnicolaas/home-assistant-glow

Alternatively if you want to measure your overall energy consumption and aren't too worried what is generating the load, then I would suggest looking into the Home Assistant Glow project on github (https://github.com/klaasnicolaas/home-assistant-glow) - assuming you have a suitable electricity meter - for a couple of pounds you can put together a light sensitive diode and an ESP8266 (or similar) to create a device to sit over the flashing light on the meter to calculate usage. I have found it pretty accurate - it seems to match my billed usage pretty closely (within 3-5kw per month).

Check out Home Assistant Glow for a similar DIY device.

If folks want to make one of these theirselves (themselves? whatever), the "home assistant glow" project makes it pretty straightforward: https://github.com/klaasnicolaas/home-assistant-glow (I can never find the link, so I might as well drop it here). It uses ESPHome + a config file + a photo-diode thingy. It's more or less the same thing with a photoresistor. The server-side works easiest with Home Assistant, but you can access the device on its own too.

I have two questions: I already have my DIY MultiSensor hardware that was built around an ESP8266. It's main functionality is to count power pulses from my power meter via an LDR, and the hardware seems to run fine. I am aware of the Glow project, https://github.com/klaasnicolaas/home-assistant-glow , but for some reason this didn't play well with my self-created hardware. Also, I do think that my measure algorithm has a slight advantage, but that's not the point here :)