Seeed Studio XIAO SAMD21
5 in stock (can be backordered)
Delivery & Return Rules
Same-Day Delivery for ISB/RWP
Policy: Orders placed before 3:00 PM for delivery within Islamabad/Rawalpindi will be delivered the same day. Orders placed after this time will be delivered the next business day.
Quick Returns
Explanation: We aim for a smooth return experience.
Policy: Returned items will be processed within 3–5 business days of receiving the item, and you will be notified once the return is approved.
Exchange for Misquoted Items
Explanation: We take full responsibility for product listing accuracy.
Policy: If the item you received is significantly different from its description or image, you can request an exchange.
Wrong or Damaged Products
Explanation: We ensure product quality and accurate shipping.
Policy: If you receive an incorrect product or one that is damaged during shipment, you are eligible for a free exchange.
Complete Package Assurance
Explanation: Your order should arrive complete and in perfect form.
Policy: If any accessory, component, or part is missing from the package, we will ship the missing parts after confirmation.
Video Proof of the Items
Explanation: Helps verify the condition of the product upon delivery.
Policy: An unboxing video is mandatory at the time of opening the package. The video must clearly show the sealed package being opened, the product, and all included components. This is required for any claims related to:
- Missing items
- Damaged products
- Wrong deliveries
Without this video proof, we will not be able to process returns or exchanges.
No Warranty for Electronic Products
Explanation: Most electronic items are sold as-is and cannot be returned once used.
Policy: Electronic products are not covered under warranty. We recommend testing the item as soon as you receive it. Exchanges are only allowed if the product is damaged on arrival or incorrectly delivered.
Return Request Timing
Explanation: We operate within a strict return window.
Policy: All return/exchange requests must be submitted within 10 days (local orders) and 20 days (bulk orders) from the invoice date.
Online Return Requests Only
Explanation: Streamlined and trackable process.
Policy: All return and exchange requests must be raised through our official website.
Proof of Purchase Required
Explanation: Ensures authenticity of your claim.
Policy: A copy of your invoice or order confirmation is required for any return, exchange, or or claim.
Order Cancellation Policy
Policy: Only those orders that are still in processing or have not yet been shipped are eligible for cancellation.
Explanation: Once an order has been shipped, it cannot be canceled under any circumstances. If your order is still in the processing stage or has not yet been dispatched, you may request a cancellation.
TECHNICAL DOCUMENTATION FILES
Description
Seeed Studio XIAO SAMD21 is the first pioneering product of the XIAO series featuring the SAMD21 microchip and is Arduino-compatible. With its exquisite design, low power consumption, and built-in Type-C, it’s perfect for TinyML, smart wearable devices, and IoT projects. Seeed Studio XIAO SAMD21 carries the powerful CPU-ARM® Cortex®-M0+(SAMD21G18) running at up to 48Hz. In addition to the powerful CPU, it has 256KB Flash and 32KB SRAM on board and supports the USB Type-C interface which can supply power and download code.
It has 14 GPIO PINs, which can be used for 11 analog PINs, 11 digital PINs, 1 I2C interface, 1 UART interface, and 1 SPI interface. Some PINs have various functions, A1/D1 to A10/D10 Pins have PWM functions and Pin A0/D0 has a function of DAC which means you can get true analog signals, not PWM signals when you define it as an analog pin, that’s why 14 GPIO PINs can realize more I/O PINs and interfaces.
Except for the power LED, we add a user LED on board for your better coding experience. Usually, a dev board as small as this size will use the chip’s inner crystal oscillator for time fixing, in order to make the clock more accurate, Seeed Studio XIAO SAMD21 layouts an extra 32.768KHz to make the clock more stable.
Features
- Powerful CPU: ARM® Cortex®-M0+(SAMD21G18) running at up to 48Hz, 32KB of SRAM, and 256KB of onboard Flash memory
- Small Size: As small as a thumb(20×17.5mm) for wearable devices and small projects
- Easy Development: Supports Arduino / Micropython / CircuitPython
- Multiple development interfaces: 11 analog PINs, 11 digital PINs, 1 I2C interface, 1 UART interface, and 1 SPI interface
- Designed for production: Breadboard-friendly & SMD design, no components on the back
- USB Type-C
- Circuit Operating Voltage: 3.3V
- Supply Voltage(via USB): 5V
Specifications
- CPU ARM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz
- Flash Memory 256KB
- SRAM 32KB
- Digital I/O Pins 11
- Analog I/O Pins 11
- I2C interface 1
- SPI interface 1
- QTouch 7 (A0,A1,A6,A7,A8,A9,A10)
- UART interface 1
- Power supply and downloading interface Type-C
- Power 3.3V/5V DC
- Dimensions 20×17.5×3.5mm
Package Includes
- 1 x Seeed Studio XIAO SAMD21
| Weight | 5 g |
|---|---|
| Manufacturer | Seeed Technology Co |
| Product number | 1597-102010388-ND |
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