The micro:bit platform is wonderful for building programmable robots and toys. The BBC micro:bit v2 is even more powerful. It has a 64 MHz, ARM Cortex-M4 microcontroller with FPU, 512KB Flash, 128KB RAM, and a temperature sensor. It comes with Bluetooth 5.0 connectivity to work with your smart devices.
This board has a power saving mode. It comes with a capacitive touch sensor. It works with your existing MakeCode blocks and MicroPython code. You can use the companion app to send your code to your micro:bit wirelessly.