ahaucnx

17 ms·

151.
by ahaucnx 3y ago
It's true that the trend in the industry definitely goes towards subscriptions and closed eco systems. We at AirGradient see that very well that more and more companies force their users into the cloud and some monitors even refuse to
152.
Using R and RStudio to Develop a Linear Regression Correction Algorithm(airgradient.com)
2 points by ahaucnx 3y ago|0 comments
153.
by ahaucnx 3y ago
We used a few thousand of the D1 mini (ESP8266) for our air quality monitor kits and had a couple of issues. On some of them the WiFi would not work at all. Kind of like the onboard antenna was not properly connected. Other died after a few
154.
How We Use Linear Regression to Drastically Improve Humidity Sensor Accuracy(airgradient.com)
3 points by ahaucnx 3y ago|0 comments
155.
Wildfire smoke leaves harmful gases in floors and walls(theconversation.com)
6 points by ahaucnx 3y ago|0 comments
156.
New WHO Report about monitoring air pollution levels(who.int)
3 points by ahaucnx 3y ago|0 comments
157.
Taking a Stand Against Poor Air Quality(airgradient.com)
2 points by ahaucnx 3y ago|0 comments
158.
by ahaucnx 3y ago
Please reach out (again) to me [1]. We are just launching a new main board with the ESP32-C3 that might fix your issue. Happy to send it you. [1] https://www.airgradient.com/support/
159.
by ahaucnx 3y ago
- ASA - DIN 2738 tool steel - I don't know the tolerances. My engineer probably knows - Not considered
160.
by ahaucnx 3y ago
UV residence, hardness, mold suitability characteristics etc.
161.
by ahaucnx 3y ago
Original poster here. Yes this is also what I heard from people that did molds in Europe. Much much more expensive and takes 4 times as long.
162.
by ahaucnx 3y ago
Author here. Yes I agree with you. Having your own mold expert really saves a ton of money and makes things much more smoothly. We work with a great engineer based in the Philippines. You can contact me [1] and I can connect you with him. [
163.
by ahaucnx 3y ago
Achim from AirGradient here. Yes all our monitors [1] work nicely with Home Assistant. Especially via ESPHome [2]. [1] https://www.airgradient.com/indoor/ [2] https://www.airgradient.com/integrations&#x
164.
by ahaucnx 3y ago
Author here. Our mold costs were in the USD 5k - 10k range. Price per plastic part really depends on the weight and the material but you can probably assume USD 1 - 4 per part.
165.
by ahaucnx 3y ago
Author here. We only worked with Chinese mold makers but from what I understand there are some country specifics, e.g. it is important to define the mold ownership in the contract. But yes, a lot of the advise probably applies independent o
166.
by ahaucnx 3y ago
Author here. Yes this is a good point but did not really apply to us as all our air quality monitors are open-hardware anyway.
167.
by ahaucnx 3y ago
Author here. We use ASA plastic.
168.
by ahaucnx 3y ago
I second this. My sister has an enclosed fireplace and last time I visited her, I measured the air quality next to it and was surprised to find no elevated PM2.5 inside the room. However keeping the door just a bit open emitted a lot of smo
169.
What we learned making a plastic injection mold with a Chinese mold maker(airgradient.com)
525 points by ahaucnx 3y ago|219 comments
170.
by ahaucnx 3y ago
Background story why we gave ourselves a manifesto [1]. [1] https://www.airgradient.com/blog/why-we-wrote-a-manifesto/
171.
The AirGradient Manifesto(airgradient.com)
2 points by ahaucnx 3y ago|1 comments
172.
by ahaucnx 3y ago
Be aware that Awair has intentionally bricked their first generation of Monitors [1]. [1] https://www.reddit.com/r/Awair/comments/y7i5ku/awair_discont...
173.
by ahaucnx 3y ago
Thank you for the feedback. Very appreciated. We are actually working on an "integration" section of our website that would show code examples and link to repos that provide code samples on how to link our monitors with all kinds
174.
by ahaucnx 3y ago
I wrote this in response to a comment in yesterday's discussion [1]. It would be great to hear some thoughts and feedback. [1] https://news.ycombinator.com/item?id=37652832
175.
Are Our Articles Disguised Ads?(airgradient.com)
12 points by ahaucnx 3y ago|7 comments
176.
by ahaucnx 3y ago
Your comment about "disguised ad" also gave us some food for thought and I just wrote an article how we want to be transparent about our own product promotions and some changes we have implemented [1]. [1] https://www.a
177.
by ahaucnx 3y ago
By the way, we have worked with the Plantower A003 and saw much more failure rates than with the 5003 model. So I'd not really recommend it.
178.
by ahaucnx 3y ago
Carbon filters typically do not last very long so it's good to monitor TVOCs.
179.
by ahaucnx 3y ago
Thank you. This is a good suggestion.
180.
by ahaucnx 3y ago
It looks to also have a Plantower PM sensor but the smaller version (PMSA003) [1]. [1] http://www.aqmd.gov/docs/default-source/aq-spec/field-evalua...

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