Mastodawn

- Currently my strategy is to run the humidifier for a few hours before bed and make sure that the space is enclosed well to contain the humidity. Running the humidifier on the lowest level all night uses a lot of water and raises the humidity beyond 50% which is a mold risk.
- Water left in my humidifier when not in use will eventually evaporate ineffectively, I should only put as much water as I plan to use
- using the "Humidity Check" app, I found humidity is the lowest outside at 3 pm and the highest around 6 am. The best time to air out my apartment to reduce CO2 while minimizing humidity loss is the early morning and late evening. The exact timing may change with the weather and the seasons. This also means that when my apartment is the hottest during the middle of the day, I risk the most humidity loss if I use fresh air to cool down. This is fine during the winter, but could be more complicated to manage during warmer months.
#humidity #airGradient #airQuality #openSource

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🍄Inoculating the Odd in AuDHD

- I can use the air gradient alarm system to send me an email when the CO2 has reached "fresh air" levels, after which, it cannot go any lower, and therefore, I should close the window to minimize humidity losses. And vice versa, I can use it to notify me when the CO2 is too high and I should open the windows.
- Since I don't usually get notifications for emails in my notification center of my phone, I am going to try to set up air gradient as a VIP contact which should bypass the current notification settings. Then again, I check my email often, so the margin of error from missing an email is potentially small.
- I can also play with the timing. I can get them to trigger based on opening/closing/24-hours. I haven't yet adjusted opening/closing hours and am not sure if I can without getting into the code. During the night itself, there are unlikely to be a lot fluctuations and I mute notifications anyway, I think being able to set notifications to certain times of day (morning/afternoon/evening) would be more useful than opening/closing.
- I could also use this system to warn me when my humidity is too high.

#humidity #airGradient #airQuality #openSource

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🍄Inoculating the Odd in AuDHD Mar 10

- I was able to successfully set up the AirGradient alarm, designate AirGradient as a VIP contact, and get banner notifications to my phone and watch when AirQuality has stagnated around 560 or lower to close windows or 900 to open windows. Admittedly, I'm finding that this is a small margin, but there might not be much better ways of improving ventilation as a renter. I will have to accept the humidity losses during the day as inevitable.
- I experimented with opening my window in the evening past the lowest outdoor humidity dip to minimize humidity losses, then closed the space and turned my humidifier on for about two hours before bed. The air quality was above 1000 just around 1 am, so I slept in non-ideal conditions for 7 hours.
- I learned that I can add notes to my data and hope to do that more often for a few days to better remember when actions can be correlated to changes in data.

#humidity #airGradient #airQuality #openSource #openHardware #homeAssistant #orangePi

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🍄Inoculating the Odd in AuDHD Mar 10

- I looked again to see if there is any recent HomeKit integration improvements for AirGradient, but it appears not. They have some old code that has not been modified for newer boards. https://github.com/gohai/airgradient-homekit#usage It's not really necessary at this time unless I want a smart plug for the humidifier to turn on automatically.
- If I really wanted to. could invest in a device like the Home Assistant Green dedicated to run Home Assistant out of the box, and as well as other services. It's a steep $100 compared to other cheaper boards that can run HA, but would save me some labor. The only board I have is a OrangePi Zero 2w with 1 GB of ram, where HA needs 2 GB.
https://www.home-assistant.io/green/

#humidity #airGradient #airQuality #openSource #openHardware #homeAssistant #orangePi

GitHub - gohai/airgradient-homekit: Experimental Apple HomeKit-compatible firmware for AirGradient DIY PRO air quality monitor

Experimental Apple HomeKit-compatible firmware for AirGradient DIY PRO air quality monitor - gohai/airgradient-homekit

GitHub

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🍄Inoculating the Odd in AuDHD Mar 12

48 hours of data
Day 1: humidifier on the highest setting for around 2 hours before bed in an enclosed room to maintain humidity
Day 2: no humidifier in a room with open interior doors

The goal is still 50% humidity. Humidity is nearly identical overnight at around 40%, though overnight indoor temperature was 72 degrees rather than 66. I don't think I could afford to pay to heat my entire apt just to keep the humidity up, especially when heat and its CO2 isn't what I want. Running a humidifier all night and paying for the water doesn't sound great, but it's potentially more affordable.

The air quality is also not that much improved. Rather than being slightly above 1000 ppm, it's slightly below, with an extra hour before reaching 900 ppm, though it does stagnate below 1000 ppm overall. Basically, I enough CO2 overnight in a 600 sq ft studio apartment to barely stay below acceptable levels. I probably should open a window if someone else is here.

Future experiments
- humidifier off and the doors closed (to see how much the CO2 increase is caused by being in an enclosed space)
- humidifier on it's lowest setting all night (with a kill-a-watt to measure energy consumption)
- windows open

#humidity #airGradient #airQuality #openSource #openHardware

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Marcel Mar 12

@pixouls Hey, the relative humidity values will increase with lower temperature for the same moisture content in the air. You could try to convert the relative humidity values in absolute humidity using the temperature. Without humidifier, the absolute humidity should be close to outdoor absolute humidity. And you could then observe how much moisture your humidifier is adding when it is on.

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Kevin Karhan

Mar 12

@pixouls got some vents or sth to exchange air?

You could kick in a fan to pull air in / shuffle air out once it reaches high ppm or low humidity or other parameters...

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🍄Inoculating the Odd in AuDHD Mar 12

@kkarhan My apartment has central heating and cooling. I don't think the fan exchanges fresh air.

Yes, if I had some smart outlets, I could program a fan, or my humidifier. I don't have them at the time, nor a centralized system to manage them. I am trying to determine if they are necessary. I am also concerned with how a fan would impact humidity or co2 in a closed space.

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Kevin Karhan

Mar 12

@pixouls Well, a fan should enable better mixing of air.

there's a blog entry showing how to control a PWM fan with a Raspberry Pi and extrensive documentation on how to use a #Pi0W.

OFC, you could get a 12V PSU and a 12V->5V converter and use like a fan hub to hookup any amounts of any 12V PWM fans for a DIY controllable fan.

In short a fan should result in more homogenous CO² and humidity levels.

I wounder why there ain't like air vents to get fresh air in...

Using Raspberry Pi to Control a PWM Fan and Monitor its Speed

A lot of people uses fan to cool down their Raspberry Pi 4, but the fan’s noise is quiet problem (in a quiet room). In most case pi didn’t need that amount of cooling performance, so we can use PWM (

DriftKingTW's Blog

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🍄Inoculating the Odd in AuDHD Mar 12

@kkarhan hmm i wonder if mixing air would improve conditions. another potential experiment. i want to be sure of what i need before i buy another board.

i also wonder if the energy consumption to run ventilation for my whole apartment (assuming fresh air) is better than running one fan in my room (assuming that mixing air keeps the air quality within sufficient levels), in relation to the humidifier.

i should note, that the humidifier already has a fan on it's system.

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