The series of small, single-board Raspberry Pi computers include Raspberry Pi 3 B+, 3 B, 2B, 1 B+, 1 A+, Zero, and Zero W (for detailed info see https://www.raspberrypi.org/products/#buy-now-modal). We'll use the Pi 3 B motherboard here, which you can purchase for about $35 from the preceding link or on Amazon (https://www.amazon.com/gp/product/B01CD5VC92). Accessories that we have used and tested with the board with their prices are as follows:
- CanaKit 5V 2.5A Raspberry Pi Power Supply for about $10 (https://www.amazon.com/gp/product/B00MARDJZ4) to use during development.
- Kinobo - USB 2.0 Mini Microphone for about $4 (https://www.amazon.com/gp/product/B00IR8R7WQ) to record your voice commands. ...
