The Seeeduino Cortex-M0+ features an Atmel SAMD21 MCU which is fully compatible with Arduino Zero.
- 10+: $9.50
- 20+: $9.20
- 50+: $8.90
Seeeduino Cortex M0
This is the wiki page for this product, which will show you how to use the product, as well as details about the software and hardware.