FRDM-KW41Z
FRDM-KW41Z contains everything required to get started with the use of Rust to create firmwares for the NXP FRDM-KW41Z microcontroller board.
This little board contains has a lot of peripherals built in, most prominently a 802.15.4 and BLE radio and a few more peripherals connected to GPIOs, ADC, I2C and SPI. It also includes a capable debugging interface which can be used either with the default J-Link firmware or with a DAPLink firmware, the latter is easier to interface with and thus assumed by the supplied OpenOCD (later than the latest released 0.10.0 version only!) based programming scripts.
The FRDM-KW41Z mbedOS page contains a useful schematic and description of the available peripherals.