We hope you are doing ok!
This post is coming with some (good) news . We are coming out of some long (tough-ish) time after the pandemic and some components crisis, and we are coming back to the forum to start thinking about what’s next, and what we can do together. As you know, the SCK is currently not available, and the reason for it is because there are have been some components that have either been discontinued or that had supply chain issues.
We are working on it, and we would like to make some hardware changes and ask you about what you think about some ideas. We would really love if you could share with us some feedback from the usage of our beloved SCK2.1 , which of course has its good and bad things, for which we would like to keep the good and improve the bad… These changes will in principle be backward compatible in both boards, so new and old versions of the hardware (SCK2.1 onwards) will be interchangeable
So! These are some working topics, and we would appreciate some input, requests, comments or anything you want to contribute.
- We would keep temperature and humidity, noise and PM sensor as they are.
- For the temperature sensor, maybe a slight improvement to add a PTFE protective layer.
- To allow other PM sensors (Sensirion, and many others), some designs for bridging connectors will be done and shared, and firmware will support some
- We have to replace both the pressure and the tvoc sensors because they are discontinued.
- Pressure sensor seems to be somewhat simple, and replacing it with another one with similar specs would do in our opinion
- tVOC sensor seems to be a tricky one, and the CCS811 has shown that technology is not there yet for the complexity of the tVOC measurements. We are looking into some alternatives, but still no decision has been made.
- We have received a lot of feedback for changing the light sensor, maybe into something less directional. We are also looking for some UV sensors, but there isn’t much out there.
- We are thinking about expanding the Data Board header to a much larger one and expose more pins. This would allow us to connect for instance to external communication modules (LoRa, GSM ?) or to develop boards that can be hooked up to other sensors, without going through the auxiliary connector
- We are also testing some new RISC-V ESP32 C3 to replace the current ESP8266. This would allow us to go into other network types, improve connectivity and do plenty of cool things!
We would love to hear what you think about it, either by contributing some sensor ideas, some other feedback, or even just talking about what is good or bad of the current hardware.
Also, the firmware development will happen in the github repo in case you want to contribute!