New comment by sarabveer in "Show HN: We Fixed UniFi's Slow PPPoE Performance with PPPoE Half-Bridge"

sarabveer — Mon, 03 Aug 2026 12:00:06 +0000

> Even in 2026, a huge number of ISPs still rely on PPPoE, including Bell Canada, AT&T Fiber, and Xfinity in the US, along with the vast majority of ISPs in Europe, Asia, and China.

Comcast (Xfinity) does not use PPPoE.

New comment by sarabveer in "Air quality monitors: paying more does not get you more accuracy"

sarabveer — Thu, 08 Jun 2023 15:54:51 +0000

I would definitely like some research into the SEN5x line of sensors. I have three air quality monitors in the house. Two of them are AirGradient kits (Basic and Pro), with the other one I made myself using a SEN55 and SCD41. All of them are using ESPHome for the firmware.

With the current very bad air quality in the US Northeast, I noticed that the SEN55 was reading much higher than the two Plantowers in the AirGradients. At one point, the SEN55 was reading around 200µg/m³, while the Plantowers were reading around 100µg/m³. I am planning on buying a second SEN55 to check this.

Hacker News: sarabveer

New comment by sarabveer in "Show HN: We Fixed UniFi's Slow PPPoE Performance with PPPoE Half-Bridge"

New comment by sarabveer in "Air quality monitors: paying more does not get you more accuracy"