From ba700a3bbab467cef5c3f90674909e86f2c163ea Mon Sep 17 00:00:00 2001 From: "Joshua M. Boniface" Date: Mon, 1 Sep 2025 01:36:48 -0400 Subject: [PATCH] Fix naming --- content/en/posts/the-supersensor-2.0/index.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/content/en/posts/the-supersensor-2.0/index.md b/content/en/posts/the-supersensor-2.0/index.md index dfaecef..0e2afff 100644 --- a/content/en/posts/the-supersensor-2.0/index.md +++ b/content/en/posts/the-supersensor-2.0/index.md @@ -17,7 +17,7 @@ There are 4 key changes from the SuperSensor 1.x to the 2.x: ### BME680 -> SGP41/SHT45 -The original Supersensor design leveraged the Bosch BME680 sensor to provide temperature, humidity, atmospheric pressure, and air quality reporting. At the time, this seemed like the perfect sensor for an all-in-one device, letting us truly monitor the environment in all aspects. +The original SuperSensor design leveraged the Bosch BME680 sensor to provide temperature, humidity, atmospheric pressure, and air quality reporting. At the time, this seemed like the perfect sensor for an all-in-one device, letting us truly monitor the environment in all aspects. Unfortunately, this sensor ended up being a complete flop, and doing more research post-mortem, I found I was not alone. The main issue with this sensor was its IAQ functionality, the reason I went with the 680 over the 280. When using the official Bosch libraries with the non-IDF (Arduino) ESP framework, the VOC sensor would seem to work fine for days or even weeks at a time. However as it was left running, the IAQ value would creep up and up as the sensor continuously "re-calibrated" itself to the current environment, eventually reporting IAQ values of 500+ with no basis in reality. I originally speculated that this had something to do with the wildfire smoke last summer, but even over the winter the problem persisted. I ended up spending most of last summer, and several weeks this spring, tweaking and tweaking this sensor trying to get it to function properly, including a very long but ill-fated attempt to do custom IAQ calculations, first on my own and then with AI assistance. But even with all that, ultimately this part of the sensor proved to be utterly useless. @@ -72,7 +72,7 @@ Overall, the cost is about $2 more than the original SuperSensor, despite the se ## Layout, Assembly, and Final Product -One noteworthy change to the assembly of the SuperSensor 2.x is that for this version, I'm socketing every part on every sensor. My initial testing batch did feature soldered components on the front like with the Supersensor 1.x, but between de-soldering parts on those original boards, and then de-soldering some *again* during the R&D phases, I found it far easier to just socket everything going forward. This adds a negligible amount to the parts list but provides a lot of convenience if I need to swap a defective component or make a change (for instance from the SGP30 to the SGP41). +One noteworthy change to the assembly of the SuperSensor 2.x is that for this version, I'm socketing every part on every sensor. My initial testing batch did feature soldered components on the front like with the SuperSensor 1.x, but between de-soldering parts on those original boards, and then de-soldering some *again* during the R&D phases, I found it far easier to just socket everything going forward. This adds a negligible amount to the parts list but provides a lot of convenience if I need to swap a defective component or make a change (for instance from the SGP30 to the SGP41). And now for the pictures! @@ -112,7 +112,7 @@ So far I've been very happy with v2.0, and I've made a total of 15: 9 to replace What does the future hold? One thing I'd love to do is make this even more compact by including all the individual components onto the PCB as SMD, avoiding needing through-pin modules. This would make things much more compact and sleek. Perhaps this will be v3.0, but only time will tell! -I've also been constantly contemplating a case for the Supersensor, but ultimately 3D modelling has not been something I've been particularly interested in. I personally like the bare-PCB look, especially with the black PCB and variously-coloured sensor modules, and while I think a case would be possible, the effort required to properly measure and design it is beyond my modelling skills. If someone would like to contribute one I'd love to see it - my vision has always been for a black cover with holes for the sensor inlets, and then a clear bar along the bottom over the LEDs and microphone to create a light-bar effect. Maybe I'll actually get around to it at some point eventually, but for now I haven't. +I've also been constantly contemplating a case for the SuperSensor, but ultimately 3D modelling has not been something I've been particularly interested in. I personally like the bare-PCB look, especially with the black PCB and variously-coloured sensor modules, and while I think a case would be possible, the effort required to properly measure and design it is beyond my modelling skills. If someone would like to contribute one I'd love to see it - my vision has always been for a black cover with holes for the sensor inlets, and then a clear bar along the bottom over the LEDs and microphone to create a light-bar effect. Maybe I'll actually get around to it at some point eventually, but for now I haven't. Happy sensing!