AchimKraus Thingy:91 is missing expandability and a DK is just to large in size.
Recently Nordic Semi has been making a few changes to the Thingy91:X devicetree files, e.g. added support for the expansion board and other misc changes. I don’t see an “edge_conenctor” defined in the "“thingy91x_nrf9151” devicetree yet like in nRF5340. Somewhat slow progress at the moment, perhaps there are delays in nRF9151 availability.
I expect the Thingy91:X Expansion Board will be the same spec as that in the Thingy:53 (nRF5340) or an enhanced version with backward compatibility. The nRF7002-EB WiFi 6 ( I use several with Thingy:53 and nRF52840 boards) should work with the Thingy:91X. With I2C (EB and I2C STEMMA), SPI and several GPIOs, the Thingy:91X should be pretty expandable for sensors and peripherals.
Originally, both the Thingy91:X and nRF9131-EK were planned for Q1 release. Hopefully we’ll see a Q3 release.
