Hello,
I need an expansion board for my Xiao S3 & C3 unfortunately it seems it does not exist, there exist only this one (Expansion Board Base for XIAO | Seeed Studio Wiki) but it is for XIAO SAMD21 , XIAO RP2040, and XIAO nRF52840 only as mentioned in the document. Where can I find the same board or the likes for Xiao S3 & C3?
Thanks.
Hi there,
So All the Xiao’s work in the Dev board… only the Jtag options are not available.
Both the S3 and the C3 will work fine in the board. There is also one with out a display and does have a seperate battery charge chip and can be fitted with extra flash memory also.
HTH
GL 
PJ 