GY-SAMD21 SAMD21 PCB Board Mini Sensor Module Pro Mini-sized IDE ATSAMD21G18 32-bit ARM Cortex-M0 FZ3482 Geekcreit for Arduino - products that work with official Arduino boards

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About this item
The SAMD21 Mini is a Pro Mini-sized for the ATSAMD21G18, a 32-bit ARM Cortex-M0+ processor with 256KB flash, 32KB SRAM, and an operating speed of up to 48MHz. The SAMD21 is compatible with the Arduino IDE, and libraries for the Arduino Zero.
ATSAMD21G18 32-bit/48MHz ARM Cortex-M0+
256KB Flash Memory
32KB of EEPROM (emulated in Flash)
22 GPIO Count 
14 ADC Channels at 12-bit Resolution
Analog-to-Digital and Digital-to-Analog Converters (ADC & DAC) 
RAW: 3.5V-6.0
VVCC: 600mA  3.3V 
Pro Mini/Micro Layout
Integrated USB Controller
Package Included:
1 x SAMD21 Mini Board

Shipping information

(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.

Shipping and Delivery Estimates

We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.


(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.

(2) Business days do not include Saturday/Sunday and any public holidays.

(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.

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Return and exchanges

Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

for more information please visit our Refunds & Returns Policy page.