Raspberry Pi Zero 2 W

 Amazon.com: Raspberry Pi Zero 2 W (with Quad-core CPU,Bluetooth 4.2,BLE,onboard Antenna,etc.) : Electronics

$21 (not a best price)

• 802.11 b/g/n wireless LAN (2.4 GHz only)c
• Bluetooth 4.2 / Bluetooth Low Energy (BLE)
• Small form factor, suitable for various DIY projects
• Expansion – Unpopulated 40-pin HAT-compatible I/O header
• Footprint-compatible with earlier members of the Raspberry Pi Zero family
• Includes 512MB LPDDR2 SDRAM

Raspberry Pi Zero – Raspberry Pi

Raspberry Pi Zero is half the size of a Model A+, with twice the utility.

A tiny Raspberry Pi that’s affordable enough for any project!

Raspberry Pi, Pi Zero, Pi Zero v1.3 Products Category on Adafruit Industries

$10

Raspberry Pi Zero W – Raspberry Pi

The Raspberry Pi Zero W extends the Pi Zero family
and comes with added wireless LAN and Bluetooth connectivity.

Raspberry Pi, Pi Zero, Pi Zero W Products Category on Adafruit Industries

$15, in stock

from
.NET Rocks! The Nomadic AI Developer with Aaron Erickson podcast

• Jon Skeet Catches the Raspberry Pi Bug (TWEET)
  John Skeet's Digimixer
•