https://blog.sobamemil.com/en/categories/smart-home-diy/ Recent content in Smart Home DIY on Sobamemil https://blog.sobamemil.com/images/og-image.png https://blog.sobamemil.com/images/og-image.png Hugo en Thu, 13 Aug 2026 14:14:00 +0900 https://blog.sobamemil.com/en/posts/atomy-air-purifier-ha/ Thu, 13 Aug 2026 14:14:00 +0900 https://blog.sobamemil.com/en/posts/atomy-air-purifier-ha/ <p>I already got this Atomy air purifier (AAP-KR19W) <a href="https://blog.sobamemil.com/en/posts/195-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-home-assistant-%EB%A1%9C%EC%BB%AC-%EC%97%B0%EB%8F%99-%EB%B0%A9%EB%B2%95-tuya-esp8/">running locally on Home Assistant</a> and <a href="https://blog.sobamemil.com/en/posts/196-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-pms9003m-%EB%AF%B8%EC%84%B8%EB%A8%BC%EC%A7%80-%EC%84%BC%EC%84%9C-%EA%B5%90%EC%B2%B4%EA%B8%B0/">replaced its dust sensor</a> in earlier posts, and it's been running well since. This time the filters were due for a change, so here's that.</p> <h2 id="the-two-filter-set-design">The two-filter-set design</h2> <p>The best thing about this purifier is its oversized filter system: a black deodorizing filter and a white non-woven filter stacked together. Since it's a large unit, filters go in both the top and bottom, so a full replacement means buying two of these stacked sets.</p> https://blog.sobamemil.com/en/posts/atomy-air-purifier-ha/ Thu, 13 Aug 2026 14:14:00 +0900 https://blog.sobamemil.com/en/posts/atomy-air-purifier-ha/ <p>I already got this Atomy air purifier (AAP-KR19W) <a href="https://blog.sobamemil.com/en/posts/195-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-home-assistant-%EB%A1%9C%EC%BB%AC-%EC%97%B0%EB%8F%99-%EB%B0%A9%EB%B2%95-tuya-esp8/">running locally on Home Assistant</a> and <a href="https://blog.sobamemil.com/en/posts/196-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-pms9003m-%EB%AF%B8%EC%84%B8%EB%A8%BC%EC%A7%80-%EC%84%BC%EC%84%9C-%EA%B5%90%EC%B2%B4%EA%B8%B0/">replaced its dust sensor</a> in earlier posts, and it's been running well since. This time the filters were due for a change, so here's that.</p> <h2 id="the-two-filter-set-design">The two-filter-set design</h2> <p>The best thing about this purifier is its oversized filter system: a black deodorizing filter and a white non-woven filter stacked together. Since it's a large unit, filters go in both the top and bottom, so a full replacement means buying two of these stacked sets.</p> https://blog.sobamemil.com/en/posts/home-network-mesh-setup/ Thu, 13 Aug 2026 14:13:00 +0900 https://blog.sobamemil.com/en/posts/home-network-mesh-setup/ <p>If there's one thing you feel most acutely once you start building out a smart home full of IoT devices, it's network stability. At my old place, one main router couldn't cover the whole apartment, so I ran a wireless mesh setup, but being wireless it came with speed drops and occasional flaky connections.</p> <p>Moving into the new apartment, I decided to use the junction box to build a proper wired mesh setup instead.</p> https://blog.sobamemil.com/en/posts/home-network-mesh-setup/ Thu, 13 Aug 2026 14:13:00 +0900 https://blog.sobamemil.com/en/posts/home-network-mesh-setup/ <p>If there's one thing you feel most acutely once you start building out a smart home full of IoT devices, it's network stability. At my old place, one main router couldn't cover the whole apartment, so I ran a wireless mesh setup, but being wireless it came with speed drops and occasional flaky connections.</p> <p>Moving into the new apartment, I decided to use the junction box to build a proper wired mesh setup instead.</p> https://blog.sobamemil.com/en/posts/commax-wallpad-ha-integration/ Thu, 13 Aug 2026 14:12:00 +0900 https://blog.sobamemil.com/en/posts/commax-wallpad-ha-integration/ <p>The wallpad that comes standard in most Korean apartments is wired into the lighting, heating, ventilation, gas valve, and even the elevator call button, which makes it both an appealing target and something you eventually have to deal with if you're serious about a smart home.</p> <p>The new apartment I moved into has a Commax wallpad installed. This post covers the first step toward Home Assistant integration: analyzing the hardware and locating the communication lines.</p> https://blog.sobamemil.com/en/posts/commax-wallpad-ha-integration/ Thu, 13 Aug 2026 14:12:00 +0900 https://blog.sobamemil.com/en/posts/commax-wallpad-ha-integration/ <p>The wallpad that comes standard in most Korean apartments is wired into the lighting, heating, ventilation, gas valve, and even the elevator call button, which makes it both an appealing target and something you eventually have to deal with if you're serious about a smart home.</p> <p>The new apartment I moved into has a Commax wallpad installed. This post covers the first step toward Home Assistant integration: analyzing the hardware and locating the communication lines.</p> https://blog.sobamemil.com/en/posts/bidet-self-installation/ Thu, 13 Aug 2026 14:11:00 +0900 https://blog.sobamemil.com/en/posts/bidet-self-installation/ <p>The bathroom in the new apartment was in great shape overall, except there was no bidet installed. I could've called someone, but to save the service fee I decided to install one myself, a bidet I'd ordered from AliExpress for about 60,000 won.</p> <h2 id="removing-the-existing-toilet-seat">Removing the existing toilet seat</h2> <p>First I took off the plain toilet seat that was already there. Feeling around under the bowl, there are plastic nuts on both sides that you can loosen by hand, turning counterclockwise, no tools needed. Once the nuts are off, the seat lifts right off.</p> https://blog.sobamemil.com/en/posts/bidet-self-installation/ Thu, 13 Aug 2026 14:11:00 +0900 https://blog.sobamemil.com/en/posts/bidet-self-installation/ <p>The bathroom in the new apartment was in great shape overall, except there was no bidet installed. I could've called someone, but to save the service fee I decided to install one myself, a bidet I'd ordered from AliExpress for about 60,000 won.</p> <h2 id="removing-the-existing-toilet-seat">Removing the existing toilet seat</h2> <p>First I took off the plain toilet seat that was already there. Feeling around under the bowl, there are plastic nuts on both sides that you can loosen by hand, turning counterclockwise, no tools needed. Once the nuts are off, the seat lifts right off.</p> https://blog.sobamemil.com/en/posts/robot-vacuum-water-purifier-installation/ Thu, 13 Aug 2026 14:10:00 +0900 https://blog.sobamemil.com/en/posts/robot-vacuum-water-purifier-installation/ <p>There was one project I'd been looking forward to since moving into the new apartment: plumbing in the direct-drain kit for my Dreame Aqua 10 robot vacuum and the water purifier's supply line at the same time.</p> <p>If you don't empty the dirty water tank in time after mop cleaning, the smell gets pretty bad. A direct-drain kit gets rid of that hassle entirely. Hiring someone would've been easier, but I decided to do it myself, partly to save money. I'd never done plumbing work before, so I was a little nervous, but figured I'd just dive in.</p> https://blog.sobamemil.com/en/posts/robot-vacuum-water-purifier-installation/ Thu, 13 Aug 2026 14:10:00 +0900 https://blog.sobamemil.com/en/posts/robot-vacuum-water-purifier-installation/ <p>There was one project I'd been looking forward to since moving into the new apartment: plumbing in the direct-drain kit for my Dreame Aqua 10 robot vacuum and the water purifier's supply line at the same time.</p> <p>If you don't empty the dirty water tank in time after mop cleaning, the smell gets pretty bad. A direct-drain kit gets rid of that hassle entirely. Hiring someone would've been easier, but I decided to do it myself, partly to save money. I'd never done plumbing work before, so I was a little nervous, but figured I'd just dive in.</p> https://blog.sobamemil.com/en/posts/196-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-pms9003m-%EB%AF%B8%EC%84%B8%EB%A8%BC%EC%A7%80-%EC%84%BC%EC%84%9C-%EA%B5%90%EC%B2%B4%EA%B8%B0/ Sun, 09 Aug 2026 13:20:00 +0900 https://blog.sobamemil.com/en/posts/196-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-pms9003m-%EB%AF%B8%EC%84%B8%EB%A8%BC%EC%A7%80-%EC%84%BC%EC%84%9C-%EA%B5%90%EC%B2%B4%EA%B8%B0/ A quick DIY guide on replacing/installing a Plantower PMS9003M particulate matter sensor into an Atomy Air Purifier (AAP-KR19W) to restore PM1.0, PM2.5, and PM10 readings in Home Assistant. https://blog.sobamemil.com/en/posts/195-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-home-assistant-%EB%A1%9C%EC%BB%AC-%EC%97%B0%EB%8F%99-%EB%B0%A9%EB%B2%95-tuya-esp8/ Thu, 06 Aug 2026 16:55:41 +0900 https://blog.sobamemil.com/en/posts/195-ha-diy-%EC%95%A0%ED%84%B0%EB%AF%B8-%EA%B3%B5%EA%B8%B0%EC%B2%AD%EC%A0%95%EA%B8%B0-home-assistant-%EB%A1%9C%EC%BB%AC-%EC%97%B0%EB%8F%99-%EB%B0%A9%EB%B2%95-tuya-esp8/ A complete guide on reviving an abandoned Atomy Air Purifier (AAP-KR19W) into Home Assistant via local Tuya MQTT provisioning and custom OpenSSL TLS patch.