The BBC Micro:bit would be a great starting point. It's a simple microcontroller module with Bluetooth Low Energy, an accelerometer and easily accessible IO. Th

The BBC Micro:bit would be a great starting point. It's a simple microcontroller module with Bluetooth Low Energy, an accelerometer and easily accessible IO. There are browser-based IDEs supporting drag-and-drop code blocks, Javascript or Python; you can also program the device from a smartphone app over Bluetooth. There are hundreds of lessons and projects for the micro:bit, including a 14 week introduction to CS course. A starter kit costs just $16.50 from AdaFruit. In my opinion, it's the best introduction to computer science for children. http://microbit.org/guide/ http://microbit.org/guide/ https://www.adafruit.com/product/3362 https://www.adafruit.com/product/3362 https://makecode.microbit.org/courses/csintro https://makecode.microbit.org/courses/csintro