The [BitBots] (https://4tronix.co.uk/blog/?p=1490) were bought in 2019 to replace the MBED robots. These robots consist of a BBC Microbit in a small chassis with wheels, sensors and LEDs.
In order to use the BitBots with Makecode, an extension is required. This extension can be found from the settings menu in the makecode editor. After adding the extension, new functions are available to address the motors and sensors on the bitbot. When the code is ready, the Bitbot can be programmed by connecting it to a PC using a USB A to Micro-B cable. Clicking the 'Download' link will the download a file, and dragging the file
Further documentation on the BitBots, extension, and example projects are available from 4tronix' website