Thanks for you in-time and informative answer. Just quickly answer some of your questions first:
- On-board SPI Flash is being considered for each design.
- The orange element below the SWD connector is designed as ICSP connectors, but now it is considered not necessary.
- The first release of Xiao has two pins for SWD so yes you could use SWD. But you could not use the quick reset key on-board since no RESET pin led out.
- Adafruit Feather form-factor has been considered and I’ve made some design like this:
But as you could see the space is too limited to add more components and I am not sure the advantage of making in this form-factor so I didn’t use this. - Thank you for pointing out that RTC IC is already in XIAO, adding a battery for RTC will be enough.
- So far I could not give a confirmed date for ETA for the board, normally we would prefer to spend more time on the product definition to make the product better fit users’ demands. Will let you know as soon as possible.
If you don’t mind, I would like to know more about:
- What you normally use Seeeduino to do?
- How frequently will you use the debug function, and for what particular purpose if any?
- Is RTC function important for you?
- What do you think would be the advantage to design in Feather form-factor?
- Why would you like to have climate sensors onboard?
Thank you for your valuable input. It really helps! Will be glad to hear anything else you would like to share with us.